Merge branch 'next'

Custom splash screen from sd

.gitignore

@@ -63,4 +63,10 @@ CMakeFiles/
 
 # Host OS leftovers
 .DS_Store
-/firmware/CMakeCache.txt
+/firmware/CMakeCache.txt
+
+# Python env
+env/
+
+# Other
+*.bak

LICENSE

@@ -1,281 +1,622 @@
-GNU GENERAL PUBLIC LICENSE
-                       Version 2, June 1991
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
 
- Copyright (C) 1989, 1991 Free Software Foundation, Inc., <http://fsf.org/>
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
  Everyone is permitted to copy and distribute verbatim copies
  of this license document, but changing it is not allowed.
 
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+licenses of parties who have received copies or rights from you under
+this License.  If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
+not accept this License.  Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+  10. Automatic Licensing of Downstream Recipients.
+
+  Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License.  You are not responsible
+for enforcing compliance by third parties with this License.
+
+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations.  If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+  You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License.  For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
 this License.
 
-  7. If, as a consequence of a court judgment or allegation of patent
-infringement or for any other reason (not limited to patent issues),
-conditions are imposed on you (whether by court order, agreement or
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
 otherwise) that contradict the conditions of this License, they do not
-excuse you from the conditions of this License.  If you cannot
-distribute so as to satisfy simultaneously your obligations under this
-License and any other pertinent obligations, then as a consequence you
-may not distribute the Program at all.  For example, if a patent
-license would not permit royalty-free redistribution of the Program by
-all those who receive copies directly or indirectly through you, then
-the only way you could satisfy both it and this License would be to
-refrain entirely from distribution of the Program.
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
 
-If any portion of this section is held invalid or unenforceable under
-any particular circumstance, the balance of the section is intended to
-apply and the section as a whole is intended to apply in other
-circumstances.
+  13. Use with the GNU Affero General Public License.
 
-It is not the purpose of this section to induce you to infringe any
-patents or other property right claims or to contest validity of any
-such claims; this section has the sole purpose of protecting the
-integrity of the free software distribution system, which is
-implemented by public license practices.  Many people have made
-generous contributions to the wide range of software distributed
-through that system in reliance on consistent application of that
-system; it is up to the author/donor to decide if he or she is willing
-to distribute software through any other system and a licensee cannot
-impose that choice.
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
 
-This section is intended to make thoroughly clear what is believed to
-be a consequence of the rest of this License.
+  14. Revised Versions of this License.
 
-  8. If the distribution and/or use of the Program is restricted in
-certain countries either by patents or by copyrighted interfaces, the
-original copyright holder who places the Program under this License
-may add an explicit geographical distribution limitation excluding
-those countries, so that distribution is permitted only in or among
-countries not thus excluded.  In such case, this License incorporates
-the limitation as if written in the body of this License.
-
-  9. The Free Software Foundation may publish revised and/or new versions
-of the General Public License from time to time.  Such new versions will
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
 be similar in spirit to the present version, but may differ in detail to
 address new problems or concerns.
 
-Each version is given a distinguishing version number.  If the Program
-specifies a version number of this License which applies to it and "any
-later version", you have the option of following the terms and conditions
-either of that version or of any later version published by the Free
-Software Foundation.  If the Program does not specify a version number of
-this License, you may choose any version ever published by the Free Software
-Foundation.
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
 
-  10. If you wish to incorporate parts of the Program into other free
-programs whose distribution conditions are different, write to the author
-to ask for permission.  For software which is copyrighted by the Free
-Software Foundation, write to the Free Software Foundation; we sometimes
-make exceptions for this.  Our decision will be guided by the two goals
-of preserving the free status of all derivatives of our free software and
-of promoting the sharing and reuse of software generally.
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
 
-                            NO WARRANTY
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
 
-  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
-FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
-OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
-PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
-OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
-TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
-PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
-REPAIR OR CORRECTION.
+  15. Disclaimer of Warranty.
 
-  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
-REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
-INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
-OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
-TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
-YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
-PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGES.
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
 
                      END OF TERMS AND CONDITIONS
 
@@ -287,15 +628,15 @@ free software which everyone can redistribute and change under these terms.
 
   To do so, attach the following notices to the program.  It is safest
 to attach them to the start of each source file to most effectively
-convey the exclusion of warranty; and each file should have at least
+state the exclusion of warranty; and each file should have at least
 the "copyright" line and a pointer to where the full notice is found.
 
-    {description}
-    Copyright (C) {year}  {fullname}
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
 
-    This program is free software; you can redistribute it and/or modify
+    This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
+    the Free Software Foundation, either version 3 of the License, or
     (at your option) any later version.
 
     This program is distributed in the hope that it will be useful,
@@ -303,37 +644,31 @@ the "copyright" line and a pointer to where the full notice is found.
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 Also add information on how to contact you by electronic and paper mail.
 
-If the program is interactive, make it output a short notice like this
-when it starts in an interactive mode:
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
 
-    Gnomovision version 69, Copyright (C) year name of author
-    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
     This is free software, and you are welcome to redistribute it
     under certain conditions; type `show c' for details.
 
 The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License.  Of course, the commands you use may
-be called something other than `show w' and `show c'; they could even be
-mouse-clicks or menu items--whatever suits your program.
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
 
-You should also get your employer (if you work as a programmer) or your
-school, if any, to sign a "copyright disclaimer" for the program, if
-necessary.  Here is a sample; alter the names:
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
 
-  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
-  `Gnomovision' (which makes passes at compilers) written by James Hacker.
-
-  {signature of Ty Coon}, 1 April 1989
-  Ty Coon, President of Vice
-
-This General Public License does not permit incorporating your program into
-proprietary programs.  If your program is a subroutine library, you may
-consider it more useful to permit linking proprietary applications with the
-library.  If this is what you want to do, use the GNU Lesser General
-Public License instead of this License.
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

LICENSE.GPL-2.0-or-later

@@ -0,0 +1,339 @@
+GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc., <http://fsf.org/>
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
+source code.  And you must show them these terms so they know their
+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language.  (Hereinafter, translation is included without limitation in
+the term "modification".)  Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+    a) You must cause the modified files to carry prominent notices
+    stating that you changed the files and the date of any change.
+
+    b) You must cause any work that you distribute or publish, that in
+    whole or in part contains or is derived from the Program or any
+    part thereof, to be licensed as a whole at no charge to all third
+    parties under the terms of this License.
+
+    c) If the modified program normally reads commands interactively
+    when run, you must cause it, when started running for such
+    interactive use in the most ordinary way, to print or display an
+    announcement including an appropriate copyright notice and a
+    notice that there is no warranty (or else, saying that you provide
+    a warranty) and that users may redistribute the program under
+    these conditions, and telling the user how to view a copy of this
+    License.  (Exception: if the Program itself is interactive but
+    does not normally print such an announcement, your work based on
+    the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole.  If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works.  But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+  3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+    a) Accompany it with the complete corresponding machine-readable
+    source code, which must be distributed under the terms of Sections
+    1 and 2 above on a medium customarily used for software interchange; or,
+
+    b) Accompany it with a written offer, valid for at least three
+    years, to give any third party, for a charge no more than your
+    cost of physically performing source distribution, a complete
+    machine-readable copy of the corresponding source code, to be
+    distributed under the terms of Sections 1 and 2 above on a medium
+    customarily used for software interchange; or,
+
+    c) Accompany it with the information you received as to the offer
+    to distribute corresponding source code.  (This alternative is
+    allowed only for noncommercial distribution and only if you
+    received the program in object code or executable form with such
+    an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it.  For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable.  However, as a
+special exception, the source code distributed need not include
+anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+
+If distribution of executable or object code is made by offering
+access to copy from a designated place, then offering equivalent
+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+  4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License.  Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+  5. You are not required to accept this License, since you have not
+signed it.  However, nothing else grants you permission to modify or
+distribute the Program or its derivative works.  These actions are
+prohibited by law if you do not accept this License.  Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+  6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions.  You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+  7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all.  For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices.  Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded.  In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+  9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission.  For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this.  Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+                            NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    {description}
+    Copyright (C) {year}  {fullname}
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  {signature of Ty Coon}, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.

LICENSE.md

@@ -0,0 +1,7 @@
+# License 
+Portapack Mayhem is distributed under GPL v3.0, however some sub projects might have different (GPL v3.0 compatible) licenses.
+
+## Other Licenses (compatible with GPL v3.0)
+- Most of Portapack Mayhem is distributed under GPL-2.0-or-later. [license](LICENSE.GPL-2.0-or-later)
+- ChibiOS is distributed under GPL v3.0. [license](/firmware/chibios/license.txt)
+- Portapack-ChibiOS is distributed under Apache-2.0 [license](http://www.apache.org/licenses/LICENSE-2.0)

README.md

@@ -1,8 +1,6 @@
-> ⚠ **BEFORE BUYING YOURS:** ⚠ Beware of hardware mods that use a custom firmware, which are [NOT COMPATIBLE](https://github.com/eried/portapack-mayhem/issues/264) with older forks, and they do not follow the license. **ASK THE SELLER if the unit works with an specific firmware, for example, pointing to the [![GitHub release (latest by date)](https://img.shields.io/github/v/release/eried/portapack-mayhem?label=latest%20release&style=social)](https://github.com/eried/portapack-mayhem/releases/latest) on this repository**
-
 # PortaPack Mayhem
 
-[![Build Status](https://travis-ci.com/eried/portapack-mayhem.svg?branch=master)](https://travis-ci.com/eried/portapack-mayhem) [![buddy pipeline](https://app.buddy.works/eried/portapack/pipelines/pipeline/252276/badge.svg?token=48cd59d53de0589a8fbe26bc751d77a59a011cf72581da049343879402991c34 "buddy pipeline")](https://app.buddy.works/eried/portapack/pipelines/pipeline/252276) [![CodeScene Code Health](https://codescene.io/projects/8381/status-badges/code-health)](https://codescene.io/projects/8381) [![GitHub All Releases](https://img.shields.io/github/downloads/eried/portapack-mayhem/total)](https://github.com/eried/portapack-mayhem/releases) [![GitHub Releases](https://img.shields.io/github/downloads/eried/portapack-mayhem/latest/total)](https://github.com/eried/portapack-mayhem/releases/latest) [![Docker Hub Pulls](https://img.shields.io/docker/pulls/eried/portapack.svg)](https://hub.docker.com/r/eried/portapack) [![Discord Chat](https://img.shields.io/discord/719669764804444213.svg)](https://discord.gg/tuwVMv3)  [![Check bounties!](https://img.shields.io/bountysource/team/portapack-mayhem/activity?color=%2333ccff&label=bountysource%20%28USD%29&style=plastic)](https://www.bountysource.com/teams/portapack-mayhem/issues)
+[![Build Status](https://travis-ci.com/eried/portapack-mayhem.svg?branch=master)](https://travis-ci.com/eried/portapack-mayhem) [![CodeScene Code Health](https://codescene.io/projects/8381/status-badges/code-health)](https://codescene.io/projects/8381) [![GitHub All Releases](https://img.shields.io/github/downloads/eried/portapack-mayhem/total)](https://github.com/eried/portapack-mayhem/releases) [![GitHub Releases](https://img.shields.io/github/downloads/eried/portapack-mayhem/latest/total)](https://github.com/eried/portapack-mayhem/releases/latest) [![Docker Hub Pulls](https://img.shields.io/docker/pulls/eried/portapack.svg)](https://hub.docker.com/r/eried/portapack) [![Discord Chat](https://img.shields.io/discord/719669764804444213.svg)](https://discord.gg/tuwVMv3)  [![Check bounties!](https://img.shields.io/bountysource/team/portapack-mayhem/activity?color=%2333ccff&label=bountysource%20%28USD%29&style=plastic)](https://www.bountysource.com/teams/portapack-mayhem/issues)
 
 This is a fork of the [Havoc](https://github.com/furrtek/portapack-havoc/) firmware, which itself was a fork of the [PortaPack](https://github.com/sharebrained/portapack-hackrf) firmware, an add-on for the [HackRF](http://greatscottgadgets.com/hackrf/). A fork is a derivate, in this case one that has extra features and fixes when compared to the older versions.
 
@@ -28,7 +26,7 @@ To support the people behind the hardware, please buy a genuine [HackRF](https:/
 
 ## Where is the latest firmware?
 
-The current stable release is on the [![GitHub release (latest by date)](https://img.shields.io/github/v/release/eried/portapack-mayhem?label=Releases&style=social)](https://github.com/eried/portapack-mayhem/releases/latest) page. Follow the instructions you can find in the release description. There is also [nightly builds](https://github.com/eried/portapack-mayhem/releases/tag/nightly) generated periodically, which include the latest commits, but they may contain incomplete or buggy functionality.
+The current stable release is on the [![GitHub release (latest by date)](https://img.shields.io/github/v/release/eried/portapack-mayhem?label=Releases&style=social)](https://github.com/eried/portapack-mayhem/releases/latest) page. Follow the instructions you can find in the release description. 
 
 ## Is this the newest firmware for my PortaPack? 
 Most probably: **YES**. *If you find new features somewhere else, please [suggest](https://github.com/eried/portapack-mayhem/issues/new/choose) them*.

firmware/application/apps/capture_app.cpp

@@ -74,17 +74,58 @@ CaptureAppView::CaptureAppView(NavigationView& nav) {
 	
 	option_bandwidth.on_change = [this](size_t, uint32_t base_rate) {
 		sampling_rate = 8 * base_rate;	// Decimation by 8 done on baseband side
-		
+  	    /* base_rate  is used for FFT calculation and display LCD, and also in  recording writing SD Card  rate. */
+		/* ex. sampling_rate values, 4Mhz, when recording 500 khz (BW) and fs 8 Mhz , when selected 1 Mhz BW ...*/ 
+	    /* ex. recording 500khz BW  to .C16 file, base_rate clock 500khz x2(I,Q) x 2 bytes (int signed) =2MB/sec rate SD Card  */
+
 		waterfall.on_hide();
 		record_view.set_sampling_rate(sampling_rate);
 		receiver_model.set_sampling_rate(sampling_rate);
+       /* Set up  proper anti aliasing BPF bandwith in MAX2837 before ADC sampling according to the new added BW Options . */ 
+		
+		switch(sampling_rate) {   // we use the var fs (sampling_rate) , to set up BPF aprox < fs_max/2 by Nyquist theorem. 
+	  
+	  			case 0 ... 2000000:  //  BW Captured range  (0 <= 250Khz max )  fs = 8 x 250 Khz 
+					anti_alias_baseband_bandwidth_filter = 1750000;  // Minimum BPF MAX2837 for all those lower BW options.
+        	 		break;
+
+				case 4000000 ... 6000000:    // BW capture  range (500k ... 750Khz max )  fs_max = 8 x 750Khz = 6Mhz 
+     				//  BW 500k ... 750khz   ,  ex. 500khz   (fs = 8*BW =  4Mhz) , BW 600Khz (fs = 4,8Mhz) , BW  750 Khz (fs = 6Mhz)  
+					anti_alias_baseband_bandwidth_filter = 2500000;  // in some IC MAX2837 appear 2250000 , but both works similar. 
+					break;	
+
+				case 8800000:    // BW capture 1,1Mhz  fs = 8 x 1,1Mhz = 8,8Mhz . (1Mhz showed slightly higher noise background).
+					anti_alias_baseband_bandwidth_filter = 3500000;   
+        	 		break;
+
+			    case 14000000:   // BW capture 1,75Mhz  , fs = 8 x 1,75Mhz = 14Mhz 
+				    // good BPF ,good matching, but LCD making flicker , refresh rate should be < 20 Hz , but reasonable picture   
+         			anti_alias_baseband_bandwidth_filter = 5000000; 
+        			break;
+
+    			case 16000000:   // BW capture 2Mhz  , fs = 8 x 2Mhz = 16Mhz
+                     //  good BPF ,good matching, but LCD making flicker , refresh rate should be < 20 Hz , but reasonable picture   
+         			anti_alias_baseband_bandwidth_filter = 6000000; 
+        			break;
+   
+            	case 20000000:   // BW capture 2,5Mhz  , fs= 8 x 2,5 Mhz = 20Mhz
+         			//  good BPF ,good matching, but LCD making flicker , refresh rate should be < 20 Hz , but reasonable picture 
+					 anti_alias_baseband_bandwidth_filter = 7000000; 
+	   	         	break;
+		   	
+      			default:         // BW capture 2,75Mhz, fs = 8 x 2,75Mhz= 22Mhz max ADC sampling)  and others.  
+        			 //  We tested also 9Mhz FPB stightly too much noise floor , better 8Mhz 
+					 anti_alias_baseband_bandwidth_filter = 8000000;
+		}   
+		receiver_model.set_baseband_bandwidth(anti_alias_baseband_bandwidth_filter);
+							
+		
 		waterfall.on_show();
 	};
 	
-	option_bandwidth.set_selected_index(7);		// 500k
+	option_bandwidth.set_selected_index(7);		// 500k,  Preselected starting default option 500khz 
 	
 	receiver_model.set_modulation(ReceiverModel::Mode::Capture);
-	receiver_model.set_baseband_bandwidth(baseband_bandwidth);
 	receiver_model.enable();
 
 	record_view.on_error = [&nav](std::string message) {

firmware/application/apps/capture_app.hpp

@@ -48,7 +48,7 @@ private:
 	static constexpr ui::Dim header_height = 3 * 16;
 
 	uint32_t sampling_rate = 0;
-	static constexpr uint32_t baseband_bandwidth = 2500000;
+	uint32_t anti_alias_baseband_bandwidth_filter = 2500000; // we rename the previous var , and change type static constexpr to normal var.
 
 	void on_tuning_frequency_changed(rf::Frequency f);
 
@@ -95,7 +95,14 @@ private:
 			{ " 50k ", 50000 },
 			{ "100k ", 100000 },
 			{ "250k ", 250000 },
-			{ "500k ", 500000 }
+			{ "500k ", 500000 },   // Previous Limit bandwith Option with perfect micro SD write .C16 format operaton.
+			{ "600k ", 600000 },   // That extended option is still possible to record with FW version Mayhem v1.41 (< 2,5MB/sec)  
+ 			{ "750k ", 750000 },   // From that BW onwards, the LCD is ok, but the recorded file is auto decimated,(not real file size) 
+			{ "1100k", 1100000 },
+	       	{ "1750k", 1750000 },
+			{ "2000k", 2000000 },
+			{ "2500k", 2500000 },
+			{ "2750k", 2750000 }    // That is our max Capture option , to keep using later / 8 decimation (22Mhz sampling  ADC)
 		}
 	};
 	

firmware/application/apps/dump1090.hpp

@@ -0,0 +1,444 @@
+// Part of dump1090, a Mode S message decoder for RTLSDR devices.
+//
+// dump1090.h: main program header
+//
+// Copyright (c) 2014-2016 Oliver Jowett <oliver@mutability.co.uk>
+//
+// This file is free software: you may copy, redistribute and/or modify it
+// under the terms of the GNU General Public License as published by the
+// Free Software Foundation, either version 2 of the License, or (at your
+// option) any later version.
+//
+// This file is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+// This file incorporates work covered by the following copyright and
+// permission notice:
+//
+//   Copyright (C) 2012 by Salvatore Sanfilippo <antirez@gmail.com>
+//
+//   All rights reserved.
+//
+//   Redistribution and use in source and binary forms, with or without
+//   modification, are permitted provided that the following conditions are
+//   met:
+//
+//    *  Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//
+//    *  Redistributions in binary form must reproduce the above copyright
+//       notice, this list of conditions and the following disclaimer in the
+//       documentation and/or other materials provided with the distribution.
+//
+//   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+//   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+//   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+//   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+//   HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+//   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+//   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+//   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+//   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+//   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+//   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef __DUMP1090_H
+#define __DUMP1090_H
+
+// Default version number, if not overriden by the Makefile
+#ifndef MODES_DUMP1090_VERSION
+# define MODES_DUMP1090_VERSION     "unknown"
+#endif
+
+#ifndef MODES_DUMP1090_VARIANT
+# define MODES_DUMP1090_VARIANT     "dump1090-unknown"
+#endif
+
+
+#define MODES_DEFAULT_FREQ         1090000000
+#define MODES_DEFAULT_WIDTH        1000
+#define MODES_DEFAULT_HEIGHT       700
+#define MODES_RTL_BUFFERS          15                         // Number of RTL buffers
+#define MODES_RTL_BUF_SIZE         (16*16384)                 // 256k
+#define MODES_MAG_BUF_SAMPLES      (MODES_RTL_BUF_SIZE / 2)   // Each sample is 2 bytes
+#define MODES_MAG_BUFFERS          12                         // Number of magnitude buffers (should be smaller than RTL_BUFFERS for flowcontrol to work)
+#define MODES_AUTO_GAIN            -100                       // Use automatic gain
+#define MODES_MAX_GAIN             999999                     // Use max available gain
+#define MODES_MSG_SQUELCH_DB       4.0                        // Minimum SNR, in dB
+#define MODES_MSG_ENCODER_ERRS     3                          // Maximum number of encoding errors
+
+#define MODEAC_MSG_SAMPLES       (25 * 2)                     // include up to the SPI bit
+#define MODEAC_MSG_BYTES          2
+#define MODEAC_MSG_SQUELCH_LEVEL  0x07FF                      // Average signal strength limit
+
+#define MODES_PREAMBLE_US        8              // microseconds = bits
+#define MODES_PREAMBLE_SAMPLES  (MODES_PREAMBLE_US       * 2)
+#define MODES_PREAMBLE_SIZE     (MODES_PREAMBLE_SAMPLES  * sizeof(uint16_t))
+#define MODES_LONG_MSG_BYTES     14
+#define MODES_SHORT_MSG_BYTES    7
+#define MODES_LONG_MSG_BITS     (MODES_LONG_MSG_BYTES    * 8)
+#define MODES_SHORT_MSG_BITS    (MODES_SHORT_MSG_BYTES   * 8)
+#define MODES_LONG_MSG_SAMPLES  (MODES_LONG_MSG_BITS     * 2)
+#define MODES_SHORT_MSG_SAMPLES (MODES_SHORT_MSG_BITS    * 2)
+#define MODES_LONG_MSG_SIZE     (MODES_LONG_MSG_SAMPLES  * sizeof(uint16_t))
+#define MODES_SHORT_MSG_SIZE    (MODES_SHORT_MSG_SAMPLES * sizeof(uint16_t))
+
+#define MODES_OS_PREAMBLE_SAMPLES  (20)
+#define MODES_OS_PREAMBLE_SIZE     (MODES_OS_PREAMBLE_SAMPLES  * sizeof(uint16_t))
+#define MODES_OS_LONG_MSG_SAMPLES  (268)
+#define MODES_OS_SHORT_MSG_SAMPLES (135)
+#define MODES_OS_LONG_MSG_SIZE     (MODES_LONG_MSG_SAMPLES  * sizeof(uint16_t))
+#define MODES_OS_SHORT_MSG_SIZE    (MODES_SHORT_MSG_SAMPLES * sizeof(uint16_t))
+
+#define MODES_OUT_BUF_SIZE         (1500)
+#define MODES_OUT_FLUSH_SIZE       (MODES_OUT_BUF_SIZE - 256)
+#define MODES_OUT_FLUSH_INTERVAL   (60000)
+
+#define MODES_USER_LATLON_VALID (1<<0)
+
+#define INVALID_ALTITUDE (-9999)
+
+/* Where did a bit of data arrive from? In order of increasing priority */
+typedef enum {
+    SOURCE_INVALID,        /* data is not valid */
+    SOURCE_MODE_AC,        /* A/C message */
+    SOURCE_MLAT,           /* derived from mlat */
+    SOURCE_MODE_S,         /* data from a Mode S message, no full CRC */
+    SOURCE_MODE_S_CHECKED, /* data from a Mode S message with full CRC */
+    SOURCE_TISB,           /* data from a TIS-B extended squitter message */
+    SOURCE_ADSR,           /* data from a ADS-R extended squitter message */
+    SOURCE_ADSB,           /* data from a ADS-B extended squitter message */
+} datasource_t;
+
+/* What sort of address is this and who sent it?
+ * (Earlier values are higher priority)
+ */
+typedef enum {
+    ADDR_ADSB_ICAO,       /* Mode S or ADS-B, ICAO address, transponder sourced */
+    ADDR_ADSB_ICAO_NT,    /* ADS-B, ICAO address, non-transponder */
+    ADDR_ADSR_ICAO,       /* ADS-R, ICAO address */
+    ADDR_TISB_ICAO,       /* TIS-B, ICAO address */
+
+    ADDR_ADSB_OTHER,      /* ADS-B, other address format */
+    ADDR_ADSR_OTHER,      /* ADS-R, other address format */
+    ADDR_TISB_TRACKFILE,  /* TIS-B, Mode A code + track file number */
+    ADDR_TISB_OTHER,      /* TIS-B, other address format */
+
+    ADDR_MODE_A,          /* Mode A */
+
+    ADDR_UNKNOWN          /* unknown address format */
+} addrtype_t;
+
+typedef enum {
+    UNIT_FEET,
+    UNIT_METERS
+} altitude_unit_t;
+
+typedef enum {
+    UNIT_NAUTICAL_MILES,
+    UNIT_STATUTE_MILES,
+    UNIT_KILOMETERS,
+} interactive_distance_unit_t;
+
+typedef enum {
+    ALTITUDE_BARO,
+    ALTITUDE_GEOM
+} altitude_source_t;
+
+typedef enum {
+    AG_INVALID,
+    AG_GROUND,
+    AG_AIRBORNE,
+    AG_UNCERTAIN
+} airground_t;
+
+typedef enum {
+    SIL_INVALID, SIL_UNKNOWN, SIL_PER_SAMPLE, SIL_PER_HOUR
+} sil_type_t;
+
+typedef enum {
+    CPR_SURFACE, CPR_AIRBORNE, CPR_COARSE
+} cpr_type_t;
+
+typedef enum {
+    HEADING_INVALID,          // Not set
+    HEADING_GROUND_TRACK,     // Direction of track over ground, degrees clockwise from true north
+    HEADING_TRUE,             // Heading, degrees clockwise from true north
+    HEADING_MAGNETIC,         // Heading, degrees clockwise from magnetic north
+    HEADING_MAGNETIC_OR_TRUE, // HEADING_MAGNETIC or HEADING_TRUE depending on the HRD bit in opstatus
+    HEADING_TRACK_OR_HEADING  // GROUND_TRACK / MAGNETIC / TRUE depending on the TAH bit in opstatus
+} heading_type_t;
+
+typedef enum {
+    COMMB_UNKNOWN,
+    COMMB_AMBIGUOUS,
+    COMMB_EMPTY_RESPONSE,
+    COMMB_DATALINK_CAPS,
+    COMMB_GICB_CAPS,
+    COMMB_AIRCRAFT_IDENT,
+    COMMB_ACAS_RA,
+    COMMB_VERTICAL_INTENT,
+    COMMB_TRACK_TURN,
+    COMMB_HEADING_SPEED
+} commb_format_t;
+
+typedef enum {
+    NAV_MODE_AUTOPILOT = 1,
+    NAV_MODE_VNAV = 2,
+    NAV_MODE_ALT_HOLD = 4,
+    NAV_MODE_APPROACH = 8,
+    NAV_MODE_LNAV = 16,
+    NAV_MODE_TCAS = 32
+} nav_modes_t;
+
+// Matches encoding of the ES type 28/1 emergency/priority status subfield
+typedef enum {
+    EMERGENCY_NONE = 0,
+    EMERGENCY_GENERAL = 1,
+    EMERGENCY_LIFEGUARD = 2,
+    EMERGENCY_MINFUEL = 3,
+    EMERGENCY_NORDO = 4,
+    EMERGENCY_UNLAWFUL = 5,
+    EMERGENCY_DOWNED = 6,
+    EMERGENCY_RESERVED = 7
+} emergency_t;
+
+typedef enum {
+    NAV_ALT_INVALID, NAV_ALT_UNKNOWN, NAV_ALT_AIRCRAFT, NAV_ALT_MCP, NAV_ALT_FMS
+} nav_altitude_source_t;
+
+#define MODES_NON_ICAO_ADDRESS       (1<<24) // Set on addresses to indicate they are not ICAO addresses
+
+#define MODES_INTERACTIVE_REFRESH_TIME 250      // Milliseconds
+#define MODES_INTERACTIVE_DISPLAY_TTL 60000     // Delete from display after 60 seconds
+
+#define MODES_NET_HEARTBEAT_INTERVAL 60000      // milliseconds
+
+#define MODES_CLIENT_BUF_SIZE  1024
+#define MODES_NET_SNDBUF_SIZE (1024*64)
+#define MODES_NET_SNDBUF_MAX  (7)
+
+#define HISTORY_SIZE 120
+#define HISTORY_INTERVAL 30000
+
+#define MODES_NOTUSED(V) ((void) V)
+
+#define MAX_AMPLITUDE 65535.0
+#define MAX_POWER (MAX_AMPLITUDE * MAX_AMPLITUDE)
+
+#define FAUP_DEFAULT_RATE_MULTIPLIER    1.0                  // FA Upload rate multiplier
+
+
+//======================== structure declarations =========================
+
+typedef enum {
+    SDR_NONE, SDR_IFILE, SDR_RTLSDR, SDR_BLADERF, SDR_HACKRF, SDR_LIMESDR
+} sdr_type_t;
+
+
+// The struct we use to store information about a decoded message.
+struct modesMessage {
+    // Generic fields
+    unsigned char msg[MODES_LONG_MSG_BYTES];      // Binary message.
+    unsigned char verbatim[MODES_LONG_MSG_BYTES]; // Binary message, as originally received before correction
+    int           msgbits;                        // Number of bits in message
+    int           msgtype;                        // Downlink format #
+    uint32_t      crc;                            // Message CRC
+    int           correctedbits;                  // No. of bits corrected
+    uint32_t      addr;                           // Address Announced
+    addrtype_t    addrtype;                       // address format / source
+    uint64_t      timestampMsg;                   // Timestamp of the message (12MHz clock)
+    uint64_t      sysTimestampMsg;                // Timestamp of the message (system time)
+    int           remote;                         // If set this message is from a remote station
+    double        signalLevel;                    // RSSI, in the range [0..1], as a fraction of full-scale power
+    int           score;                          // Scoring from scoreModesMessage, if used
+    int           reliable;                       // is this a "reliable" message (uncorrected DF11/DF17/DF18)?
+
+    datasource_t  source;                         // Characterizes the overall message source
+
+    // Raw data, just extracted directly from the message
+    // The names reflect the field names in Annex 4
+    unsigned IID; // extracted from CRC of DF11s
+    unsigned AA;
+    unsigned AC;
+    unsigned CA;
+    unsigned CC;
+    unsigned CF;
+    unsigned DR;
+    unsigned FS;
+    unsigned ID;
+    unsigned KE;
+    unsigned ND;
+    unsigned RI;
+    unsigned SL;
+    unsigned UM;
+    unsigned VS;
+    unsigned char MB[7];
+    unsigned char MD[10];
+    unsigned char ME[7];
+    unsigned char MV[7];
+
+    // Decoded data
+    unsigned altitude_baro_valid : 1;
+    unsigned altitude_geom_valid : 1;
+    unsigned track_valid : 1;
+    unsigned track_rate_valid : 1;
+    unsigned heading_valid : 1;
+    unsigned roll_valid : 1;
+    unsigned gs_valid : 1;
+    unsigned ias_valid : 1;
+    unsigned tas_valid : 1;
+    unsigned mach_valid : 1;
+    unsigned baro_rate_valid : 1;
+    unsigned geom_rate_valid : 1;
+    unsigned squawk_valid : 1;
+    unsigned callsign_valid : 1;
+    unsigned cpr_valid : 1;
+    unsigned cpr_odd : 1;
+    unsigned cpr_decoded : 1;
+    unsigned cpr_relative : 1;
+    unsigned category_valid : 1;
+    unsigned geom_delta_valid : 1;
+    unsigned from_mlat : 1;
+    unsigned from_tisb : 1;
+    unsigned spi_valid : 1;
+    unsigned spi : 1;
+    unsigned alert_valid : 1;
+    unsigned alert : 1;
+    unsigned emergency_valid : 1;
+
+    unsigned metype; // DF17/18 ME type
+    unsigned mesub;  // DF17/18 ME subtype
+
+    commb_format_t commb_format; // Inferred format of a comm-b message
+
+    // valid if altitude_baro_valid:
+    int               altitude_baro;       // Altitude in either feet or meters
+    altitude_unit_t   altitude_baro_unit;  // the unit used for altitude
+
+    // valid if altitude_geom_valid:
+    int               altitude_geom;       // Altitude in either feet or meters
+    altitude_unit_t   altitude_geom_unit;  // the unit used for altitude
+
+    // following fields are valid if the corresponding _valid field is set:
+    int      geom_delta;        // Difference between geometric and baro alt
+    float    heading;           // ground track or heading, degrees (0-359). Reported directly or computed from from EW and NS velocity
+    heading_type_t heading_type;// how to interpret 'track_or_heading'
+    float    track_rate;        // Rate of change of track, degrees/second
+    float    roll;              // Roll, degrees, negative is left roll
+    struct {
+        // Groundspeed, kts, reported directly or computed from from EW and NS velocity
+        // For surface movement, this has different interpretations for v0 and v2; both
+        // fields are populated. The tracking layer will update "gs.selected".
+        float v0;
+        float v2;
+        float selected;
+    } gs;
+    unsigned ias;               // Indicated airspeed, kts
+    unsigned tas;               // True airspeed, kts
+    double   mach;              // Mach number
+    int      baro_rate;         // Rate of change of barometric altitude, feet/minute
+    int      geom_rate;         // Rate of change of geometric (GNSS / INS) altitude, feet/minute
+    unsigned squawk;            // 13 bits identity (Squawk), encoded as 4 hex digits
+    char     callsign[9];       // 8 chars flight number, NUL-terminated
+    unsigned category;          // A0 - D7 encoded as a single hex byte
+    emergency_t emergency;      // emergency/priority status
+
+    // valid if cpr_valid
+    cpr_type_t cpr_type;       // The encoding type used (surface, airborne, coarse TIS-B)
+    unsigned   cpr_lat;        // Non decoded latitude.
+    unsigned   cpr_lon;        // Non decoded longitude.
+    unsigned   cpr_nucp;       // NUCp/NIC value implied by message type
+
+    airground_t airground;     // air/ground state
+
+    // valid if cpr_decoded:
+    double decoded_lat;
+    double decoded_lon;
+    unsigned decoded_nic;
+    unsigned decoded_rc;
+
+    // various integrity/accuracy things
+    struct {
+        unsigned nic_a_valid : 1;
+        unsigned nic_b_valid : 1;
+        unsigned nic_c_valid : 1;
+        unsigned nic_baro_valid : 1;
+        unsigned nac_p_valid : 1;
+        unsigned nac_v_valid : 1;
+        unsigned gva_valid : 1;
+        unsigned sda_valid : 1;
+
+        unsigned nic_a : 1;        // if nic_a_valid
+        unsigned nic_b : 1;        // if nic_b_valid
+        unsigned nic_c : 1;        // if nic_c_valid
+        unsigned nic_baro : 1;     // if nic_baro_valid
+
+        unsigned nac_p : 4;        // if nac_p_valid
+        unsigned nac_v : 3;        // if nac_v_valid
+
+        unsigned sil : 2;          // if sil_type != SIL_INVALID
+        sil_type_t sil_type;
+
+        unsigned gva : 2;          // if gva_valid
+
+        unsigned sda : 2;          // if sda_valid
+    } accuracy;
+
+    // Operational Status
+    struct {
+        unsigned valid : 1;
+        unsigned version : 3;
+
+        unsigned om_acas_ra : 1;
+        unsigned om_ident : 1;
+        unsigned om_atc : 1;
+        unsigned om_saf : 1;
+
+        unsigned cc_acas : 1;
+        unsigned cc_cdti : 1;
+        unsigned cc_1090_in : 1;
+        unsigned cc_arv : 1;
+        unsigned cc_ts : 1;
+        unsigned cc_tc : 2;
+        unsigned cc_uat_in : 1;
+        unsigned cc_poa : 1;
+        unsigned cc_b2_low : 1;
+        unsigned cc_lw_valid : 1;
+
+        heading_type_t tah;
+        heading_type_t hrd;
+
+        unsigned cc_lw;
+        unsigned cc_antenna_offset;
+    } opstatus;
+
+    // combined:
+    //   Target State & Status (ADS-B V2 only)
+    //   Comm-B BDS4,0 Vertical Intent
+    struct {
+        unsigned heading_valid : 1;
+        unsigned fms_altitude_valid : 1;
+        unsigned mcp_altitude_valid : 1;
+        unsigned qnh_valid : 1;
+        unsigned modes_valid : 1;
+
+        float    heading;       // heading, degrees (0-359) (could be magnetic or true heading; magnetic recommended)
+        heading_type_t heading_type;
+        unsigned fms_altitude;  // FMS selected altitude
+        unsigned mcp_altitude;  // MCP/FCU selected altitude
+        float    qnh;           // altimeter setting (QFE or QNH/QNE), millibars
+
+        nav_altitude_source_t altitude_source;
+
+        nav_modes_t modes;
+    } nav;
+};
+
+
+#endif // __DUMP1090_H

firmware/application/apps/pocsag_app.cpp

@@ -30,10 +30,11 @@ using namespace pocsag;
 
 #include "string_format.hpp"
 #include "utility.hpp"
+#include "audio.hpp"
 
 void POCSAGLogger::log_raw_data(const pocsag::POCSAGPacket& packet, const uint32_t frequency) {
 	std::string entry = "Raw: F:" + to_string_dec_uint(frequency) + "Hz " +
-						pocsag::bitrate_str(packet.bitrate()) + " Codewords:";
+						to_string_dec_uint(packet.bitrate()) + " Codewords:";
 	
 	// Raw hex dump of all the codewords
 	for (size_t c = 0; c < 16; c++)
@@ -64,13 +65,13 @@ POCSAGAppView::POCSAGAppView(NavigationView& nav) {
 	add_children({
 		&rssi,
 		&channel,
+		&audio,
 		&field_rf_amp,
 		&field_lna,
 		&field_vga,
 		&field_frequency,
-		&options_bitrate,
-		&options_phase,
 		&check_log,
+		&field_volume,
 		&check_ignore,
 		&sym_ignore,
 		&console
@@ -99,14 +100,11 @@ POCSAGAppView::POCSAGAppView(NavigationView& nav) {
 		logging = v;
 	};
 	
-	options_bitrate.on_change = [this](size_t, OptionsField::value_t v) {
-		on_config_changed(v, options_phase.selected_index_value());
-	};
-	options_bitrate.set_selected_index(1);	// 1200bps
-	
-	options_phase.on_change = [this](size_t, OptionsField::value_t v) {
-		on_config_changed(options_bitrate.selected_index_value(),v);
+	field_volume.set_value((receiver_model.headphone_volume() - audio::headphone::volume_range().max).decibel() + 99);
+	field_volume.on_change = [this](int32_t v) {
+		this->on_headphone_volume_changed(v);
 	};
+
 	check_ignore.set_value(ignore);
 	check_ignore.on_select = [this](Checkbox&, bool v) {
 		ignore = v;
@@ -121,9 +119,16 @@ POCSAGAppView::POCSAGAppView(NavigationView& nav) {
 	logger = std::make_unique<POCSAGLogger>();
 	if (logger)
 		logger->append("pocsag.txt");
+
+	audio::output::start();
+	audio::output::unmute();
+
+	baseband::set_pocsag();
 }
 
 POCSAGAppView::~POCSAGAppView() {	
+	audio::output::stop();
+
 	// Save ignored address
 	persistent_memory::set_pocsag_ignore_address(sym_ignore.value_dec_u32());
 	
@@ -135,6 +140,12 @@ void POCSAGAppView::focus() {
 	field_frequency.focus();
 }
 
+void POCSAGAppView::on_headphone_volume_changed(int32_t v) {
+	const auto new_volume = volume_t::decibel(v - 99) + audio::headphone::volume_range().max;
+	receiver_model.set_headphone_volume(new_volume);
+}
+
+
 // Useless ?
 void POCSAGAppView::set_parent_rect(const Rect new_parent_rect) {
 	View::set_parent_rect(new_parent_rect);
@@ -154,11 +165,17 @@ void POCSAGAppView::on_packet(const POCSAGPacketMessage * message) {
 			//			" Ignored address " + to_string_dec_uint(pocsag_state.address));
 			return;
 		}
+		// Too many errors for reliable decode
+		if ((ignore) && (pocsag_state.errors >= 3)) {
+			return;
+		}
+
 
 		std::string console_info;
-		
+		const uint32_t roundVal = 50;
+		const uint32_t bitrate = roundVal * ((message->packet.bitrate() + (roundVal/2))/roundVal);
 		console_info = "\n" + to_string_datetime(message->packet.timestamp(), HM);
-		console_info += " " + pocsag::bitrate_str(message->packet.bitrate());
+		console_info += " " + to_string_dec_uint(bitrate);
 		console_info += " ADDR:" + to_string_dec_uint(pocsag_state.address);
 		console_info += " F" + to_string_dec_uint(pocsag_state.function);
 
@@ -201,10 +218,6 @@ void POCSAGAppView::on_packet(const POCSAGPacketMessage * message) {
 		logger->log_raw_data(message->packet, target_frequency());
 }
 
-void POCSAGAppView::on_config_changed(const uint32_t new_bitrate, bool new_phase) {
-	baseband::set_pocsag(pocsag_bitrates[new_bitrate], new_phase);
-}
-
 void POCSAGAppView::set_target_frequency(const uint32_t new_value) {
 	target_frequency_ = new_value;
 	receiver_model.set_tuning_frequency(new_value);

firmware/application/apps/pocsag_app.hpp

@@ -61,7 +61,7 @@ private:
 	static constexpr uint32_t initial_target_frequency = 466175000;
 
 	bool logging { true };
-	bool ignore { false };
+	bool ignore { true };
 	uint32_t last_address = 0xFFFFFFFF;
 	pocsag::POCSAGState pocsag_state { };
 
@@ -80,49 +80,41 @@ private:
 	Channel channel {
 		{ 21 * 8, 5, 6 * 8, 4 },
 	};
+	Audio audio{
+		{ 21 * 8, 10, 6 * 8, 4 },
+	};
 	
 	FrequencyField field_frequency {
 		{ 0 * 8, 0 * 8 },
 	};
-	OptionsField options_bitrate {
-		{ 12 * 8, 21 },
-		7,
-		{
-			{ "512bps ", 0 },
-			{ "1200bps", 1 },
-			{ "2400bps", 2 },
-			{ "3200bps", 3 }
-		}
-	};
-	OptionsField options_phase {
-		{ 6 * 8, 21 },
-		1,
-		{
-			{ "P", 0 },
-			{ "N", 1 },
-		}
-	};
 	Checkbox check_log {
-		{ 22 * 8, 21 },
+		{ 24 * 8, 21 },
 		3,
 		"LOG",
 		true
 	};
+	NumberField field_volume{
+		{ 28 * 8, 0 * 16 },
+		2,
+		{ 0, 99 },
+		1,
+		' ',
+	};
 	
 	Checkbox check_ignore {
-		{ 1 * 8, 40 },
-		15,
-		"Ignore address:",
+		{ 1 * 8, 21 },
+		12,
+		"Ignore addr:",
 		true
 	};
 	SymField sym_ignore {
-		{ 19 * 8, 40 },
+		{ 16 * 8, 21 },
 		7,
 		SymField::SYMFIELD_DEC
 	};
 
 	Console console {
-		{ 0, 4 * 16, 240, 240 }
+		{ 0, 3 * 16, 240, 256 }
 	};
 
 	std::unique_ptr<POCSAGLogger> logger { };
@@ -133,7 +125,7 @@ private:
 
 	void on_packet(const POCSAGPacketMessage * message);
 
-	void on_config_changed(const uint32_t new_bitrate, const bool phase);
+	void on_headphone_volume_changed(int32_t v);
 
 	uint32_t target_frequency() const;
 	void set_target_frequency(const uint32_t new_value);

firmware/application/apps/replay_app.cpp

@@ -139,7 +139,12 @@ void ReplayAppView::start() {
 			}
 		);
 	}
-	
+    field_rfgain.on_change = [this](int32_t v) {
+		tx_gain = v;
+	};  
+	field_rfgain.set_value(tx_gain);
+	receiver_model.set_tx_gain(tx_gain); 
+    
 	radio::enable({
 		receiver_model.tuning_frequency(),
 		sample_rate * 8 ,
@@ -180,6 +185,8 @@ ReplayAppView::ReplayAppView(
 	NavigationView& nav
 ) : nav_ (nav)
 {
+
+	tx_gain = 35;field_rfgain.set_value(tx_gain);
 	baseband::run_image(portapack::spi_flash::image_tag_replay);
 
 	add_children({
@@ -190,7 +197,7 @@ ReplayAppView::ReplayAppView(
 		&text_duration,
 		&progressbar,
 		&field_frequency,
-		&field_lna,
+		&field_rfgain, 
 		&field_rf_amp,
 		&check_loop,
 		&button_play,

firmware/application/apps/replay_app.hpp

@@ -51,6 +51,7 @@ private:
 	static constexpr ui::Dim header_height = 3 * 16;
 	
 	uint32_t sample_rate = 0;
+	int32_t tx_gain { 47 };
 	static constexpr uint32_t baseband_bandwidth = 2500000;
 	const size_t read_size { 16384 };
 	const size_t buffer_count { 3 };
@@ -75,7 +76,7 @@ private:
 	bool ready_signal { false };
 
 	Labels labels {
-		{ { 10 * 8, 2 * 16 }, "LNA:   A:", Color::light_grey() }
+		{ { 10 * 8, 2 * 16 }, "GAIN   A:", Color::light_grey() }
 	};
 	
 	Button button_open {
@@ -103,8 +104,13 @@ private:
 	FrequencyField field_frequency {
 		{ 0 * 8, 2 * 16 },
 	};
-	LNAGainField field_lna {
-		{ 14 * 8, 2 * 16 }
+	
+	NumberField field_rfgain {
+		{ 14 * 8, 2 * 16 },
+		2,
+		{ 0, 47 },
+		1,
+		' '	
 	};
 	RFAmpField field_rf_amp {
 		{ 19 * 8, 2 * 16 }

firmware/application/apps/ui_about_simple.cpp

@@ -6,7 +6,8 @@ namespace ui
     {
         add_children({&console, &button_ok});
 
-        button_ok.on_select = [&nav](Button &) {
+        button_ok.on_select = [&nav](Button &)
+        {
             nav.pop();
         };
 
@@ -31,8 +32,11 @@ namespace ui
                 console.writeln("N0vaPixel,klockee,GullCode");
                 console.writeln("jamesshao8,ITAxReal,rascafr");
                 console.writeln("mcules,dqs105,strijar");
-                console.writeln("zhang00963,RedFox-Fr");
-                console.writeln("East2West,fossum");
+                console.writeln("zhang00963,RedFox-Fr,aldude999");
+                console.writeln("East2West,fossum,ArjanOnwezen");
+                console.writeln("vXxOinvizioNxX,teixeluis");
+                console.writeln("Brumi-2021,texasyojimbo");
+                console.writeln("heurist1,intoxsick");
                 console.writeln("");
                 break;
 

firmware/application/apps/ui_adsb_rx.cpp

@@ -20,6 +20,8 @@
  * Boston, MA 02110-1301, USA.
  */
 
+#include <strings.h>
+
 #include "ui_adsb_rx.hpp"
 #include "ui_alphanum.hpp"
 
@@ -47,7 +49,7 @@ void RecentEntriesTable<AircraftRecentEntries>::draw(
 	if (entry_age < ADSB_DECAY_A) {
 		aged_color = 0x10;
 		target_color = Color::green();
-	} else if ((entry_age >= ADSB_DECAY_A) && (entry_age < ADSB_DECAY_B)) {
+	} else if (entry_age < ADSB_DECAY_B) {
 		aged_color = 0x07;
 		target_color = Color::light_grey();
 	} else {
@@ -57,10 +59,21 @@ void RecentEntriesTable<AircraftRecentEntries>::draw(
 	
 	std::string entry_string = "\x1B";
 	entry_string += aged_color;
+#if false
 	entry_string += to_string_hex(entry.ICAO_address, 6) + " " +
 		entry.callsign + "  " +
 		(entry.hits <= 999 ? to_string_dec_uint(entry.hits, 4) : "999+") + " " + 
 		entry.time_string;
+#else
+	// SBT
+	entry_string += 
+		(entry.callsign[0]!=' ' ? entry.callsign + " " : to_string_hex(entry.ICAO_address, 6) + "   ") +
+		to_string_dec_uint((unsigned int)((entry.pos.altitude+50)/100),4) +
+		to_string_dec_uint((unsigned int)entry.velo.speed,4) +
+		to_string_dec_uint((unsigned int)(entry.amp>>9),4) + " " +
+		(entry.hits <= 999 ? to_string_dec_uint(entry.hits, 3) + " " : "1k+ ") +
+		to_string_dec_uint(entry.age, 3);
+#endif
 	
 	painter.draw_string(
 		target_rect.location(),
@@ -69,7 +82,7 @@ void RecentEntriesTable<AircraftRecentEntries>::draw(
 	);
 	
 	if (entry.pos.valid)
-		painter.draw_bitmap(target_rect.location() + Point(15 * 8, 0), bitmap_target, target_color, style.background);
+		painter.draw_bitmap(target_rect.location() + Point(8 * 8, 0), bitmap_target, target_color, style.background);
 }
 
 void ADSBLogger::log_str(std::string& logline) {
@@ -117,6 +130,7 @@ ADSBRxDetailsView::ADSBRxDetailsView(
 {
 	char file_buffer[32] { 0 };
 	bool found = false;
+	int number_of_airlines = 0;	
 	std::string airline_code;
 	size_t c;
 	
@@ -140,7 +154,8 @@ ADSBRxDetailsView::ADSBRxDetailsView(
 	// Try getting the airline's name from airlines.db
 	auto result = db_file.open("ADSB/airlines.db");
 	if (!result.is_valid()) {
-		// Search for 3-letter code in 0x0000~0x2000
+		// Search for 3-letter code
+		number_of_airlines = (db_file.size() / 68); // determine number of airlines in file
 		airline_code = entry_copy.callsign.substr(0, 3);
 		c = 0;
 		do {
@@ -151,10 +166,10 @@ ADSBRxDetailsView::ADSBRxDetailsView(
 				found = true;
 			else
 				c++;
-		} while (!found);
+		} while (!found && (c < number_of_airlines));
 		
 		if (found) {
-			db_file.seek(0x2000 + (c << 6));
+			db_file.seek((number_of_airlines * 4) + (c << 6)); // seek starting after index
 			db_file.read(file_buffer, 32);
 			text_airline.set(file_buffer);
 			db_file.read(file_buffer, 32);
@@ -171,17 +186,19 @@ ADSBRxDetailsView::ADSBRxDetailsView(
 	text_callsign.set(entry_copy.callsign);
 	
 	button_see_map.on_select = [this, &nav](Button&) {
-		geomap_view = nav.push<GeoMapView>(
-			entry_copy.callsign,
-			entry_copy.pos.altitude,
-			GeoPos::alt_unit::FEET,
-			entry_copy.pos.latitude,
-			entry_copy.pos.longitude,
-			entry_copy.velo.heading,
-			[this]() {
+		if (!send_updates) { // Prevent recursivley launching the map
+			geomap_view = nav.push<GeoMapView>(
+				entry_copy.callsign,
+				entry_copy.pos.altitude,
+				GeoPos::alt_unit::FEET,
+				entry_copy.pos.latitude,
+				entry_copy.pos.longitude,
+				entry_copy.velo.heading,
+				[this]() {
 				send_updates = false;
 			});
-		send_updates = true;
+			send_updates = true;
+		}
 	};
 };
 
@@ -190,11 +207,41 @@ void ADSBRxView::focus() {
 }
 
 ADSBRxView::~ADSBRxView() {
+	receiver_model.set_tuning_frequency(prevFreq);
+
 	rtc_time::signal_tick_second -= signal_token_tick_second;
 	receiver_model.disable();
 	baseband::shutdown();
 }
 
+AircraftRecentEntry ADSBRxView::find_or_create_entry(uint32_t ICAO_address) {
+	auto it = find(recent, ICAO_address);
+
+	// If not found
+	if (it == std::end(recent)){
+		recent.emplace_front(ICAO_address); // Add it
+		truncate_entries(recent); // Truncate the list
+		sort_entries_by_state();
+		it = find(recent, ICAO_address); // Find it again
+	}
+	return *it;
+}
+
+void ADSBRxView::replace_entry(AircraftRecentEntry & entry)
+{
+	uint32_t ICAO_address = entry.ICAO_address;
+
+	std::replace_if( recent.begin(), recent.end(), 
+		[ICAO_address](const AircraftRecentEntry & compEntry) {return ICAO_address == compEntry.ICAO_address;},
+		entry);
+}
+
+void ADSBRxView::sort_entries_by_state()
+{
+	// Sorting List pn age_state using lambda function as comparator
+	recent.sort([](const AircraftRecentEntry & left, const AircraftRecentEntry & right){return (left.age_state < right.age_state); });
+}
+
 void ADSBRxView::on_frame(const ADSBFrameMessage * message) {
 	rtc::RTC datetime;
 	std::string str_timestamp;
@@ -205,11 +252,17 @@ void ADSBRxView::on_frame(const ADSBFrameMessage * message) {
 	auto frame = message->frame;
 	uint32_t ICAO_address = frame.get_ICAO_address();
 
-	if (frame.check_CRC() && frame.get_ICAO_address()) {
+	if (frame.check_CRC() && ICAO_address) {
 		rtcGetTime(&RTCD1, &datetime);
-		auto& entry = ::on_packet(recent, ICAO_address);
+		auto entry = find_or_create_entry(ICAO_address);
 		frame.set_rx_timestamp(datetime.minute() * 60 + datetime.second());
 		entry.reset_age();
+		if (entry.hits==0)
+		{ 
+			entry.amp = message->amp;
+		} else {
+			entry.amp = ((entry.amp*15)+message->amp)>>4;
+		}
 		str_timestamp = to_string_datetime(datetime, HMS);
 		entry.set_time_string(str_timestamp);
 
@@ -222,36 +275,47 @@ void ADSBRxView::on_frame(const ADSBFrameMessage * message) {
 			uint8_t msg_sub = frame.get_msg_sub();
 			uint8_t * raw_data = frame.get_raw_data();
 			
-			if ((msg_type >= 1) && (msg_type <= 4)) {
+			// 4: // surveillance, altitude reply
+			if ((msg_type >= AIRCRAFT_ID_L) && (msg_type <= AIRCRAFT_ID_H)) {
 				callsign = decode_frame_id(frame);
 				entry.set_callsign(callsign);
 				logentry+=callsign+" ";
-			} else if (((msg_type >= 9) && (msg_type <= 18)) || ((msg_type >= 20) && (msg_type <= 22))) {
+			} 
+			// 9:
+			// 18: { // Extended squitter/non-transponder
+			// 21: // Comm-B, identity reply
+			// 20: // Comm-B, altitude reply
+			else if (((msg_type >= AIRBORNE_POS_BARO_L) && (msg_type <= AIRBORNE_POS_BARO_H)) || 
+				((msg_type >= AIRBORNE_POS_GPS_L) && (msg_type <= AIRBORNE_POS_GPS_H))) {
 				entry.set_frame_pos(frame, raw_data[6] & 4);
 				
 				if (entry.pos.valid) {
 					str_info = "Alt:" + to_string_dec_int(entry.pos.altitude) +
-						" Lat:" + to_string_dec_int(entry.pos.latitude) +
-						"." + to_string_dec_int((int)abs(entry.pos.latitude * 1000) % 100, 2, '0') +
-						" Lon:" + to_string_dec_int(entry.pos.longitude) +
-						"." + to_string_dec_int((int)abs(entry.pos.longitude * 1000) % 100, 2, '0');
-					
-					entry.set_info_string(str_info);
-					logentry+=str_info+ " ";
+						" Lat:" + to_string_decimal(entry.pos.latitude, 2) +
+						" Lon:" + to_string_decimal(entry.pos.longitude, 2);
+
+					// printing the coordinates in the log file with more
+					// resolution, as we are not constrained by screen 
+					// real estate there:
+
+					std::string log_info = "Alt:" + to_string_dec_int(entry.pos.altitude) +
+						" Lat:" + to_string_decimal(entry.pos.latitude, 7) +
+						" Lon:" + to_string_decimal(entry.pos.longitude, 7);
+
+					entry.set_info_string(str_info);
+					logentry+=log_info + " ";
 
-					if (send_updates)
-						details_view->update(entry);
 				}
-			} else if(msg_type == 19 && msg_sub >= 1 && msg_sub <= 4){
+			} else if(msg_type == AIRBORNE_VEL && msg_sub >= VEL_GND_SUBSONIC && msg_sub <= VEL_AIR_SUPERSONIC){
 				entry.set_frame_velo(frame);
 				logentry += "Type:" + to_string_dec_uint(msg_sub) +
 							" Hdg:" + to_string_dec_uint(entry.velo.heading) +
 							" Spd: "+ to_string_dec_int(entry.velo.speed);
-				if (send_updates)
-					details_view->update(entry);
+
 			}
 		}
-		recent_entries_view.set_dirty(); 
+
+		replace_entry(entry);
 		
 		logger = std::make_unique<ADSBLogger>();
         if (logger) {
@@ -269,13 +333,16 @@ void ADSBRxView::on_tick_second() {
 		entry.inc_age();
 		
 		if (details_view) {
-			if (send_updates && (entry.key() == detailed_entry_key))
+			if (send_updates && (entry.key() == detailed_entry_key)) // Check if the ICAO address match
 				details_view->update(entry);
-		} else {
-			if ((entry.age == ADSB_DECAY_A) || (entry.age == ADSB_DECAY_B))
-				recent_entries_view.set_dirty();
 		}
 	}
+
+	// Sort the list if it is being displayed
+	if (!send_updates) {
+		sort_entries_by_state();
+		recent_entries_view.set_dirty();
+	}
 }
 
 ADSBRxView::ADSBRxView(NavigationView& nav) {
@@ -304,6 +371,8 @@ ADSBRxView::ADSBRxView(NavigationView& nav) {
 		on_tick_second();
 	};
 	
+	prevFreq = receiver_model.tuning_frequency();
+
 	baseband::set_adsb();
 	
 	receiver_model.set_tuning_frequency(1090000000);

firmware/application/apps/ui_adsb_rx.hpp

@@ -32,13 +32,39 @@
 #include "adsb.hpp"
 #include "message.hpp"
 
+#include "crc.hpp"
+
 using namespace adsb;
 
 namespace ui {
 
-#define ADSB_DECAY_A 10		// In seconds
-#define ADSB_DECAY_B 30
-#define ADSB_DECAY_C 60		// Can be used for removing old entries, RecentEntries already caps to 64
+#define ADSB_DECAY_A 		10		// In seconds
+#define ADSB_DECAY_B 		30
+#define ADSB_DECAY_C 		60		// Can be used for removing old entries, RecentEntries already caps to 64
+
+#define AIRCRAFT_ID_L		1		// aircraft ID message type (lowest type id)
+#define AIRCRAFT_ID_H		4		// aircraft ID message type (highest type id)
+
+#define SURFACE_POS_L		5		// surface position (lowest type id)
+#define SURFACE_POS_H		8		// surface position (highest type id)
+
+#define AIRBORNE_POS_BARO_L	9		// airborne position (lowest type id)
+#define AIRBORNE_POS_BARO_H	18		// airborne position (highest type id)
+
+#define AIRBORNE_VEL		19		// airborne velocities
+
+#define AIRBORNE_POS_GPS_L	20		// airborne position (lowest type id)
+#define AIRBORNE_POS_GPS_H	22		// airborne position (highest type id)
+
+#define RESERVED_L			23		// reserved for other uses
+#define RESERVED_H			31		// reserved for other uses
+
+#define VEL_GND_SUBSONIC		1
+#define VEL_GND_SUPERSONIC		2
+#define VEL_AIR_SUBSONIC		3
+#define VEL_AIR_SUPERSONIC		4
+
+#define O_E_FRAME_TIMEOUT		20	// timeout between odd and even frames
 
 struct AircraftRecentEntry {
 	using Key = uint32_t;
@@ -47,9 +73,12 @@ struct AircraftRecentEntry {
 	
 	uint32_t ICAO_address { };
 	uint16_t hits { 0 };
+	
+	uint16_t age_state { 1 };
 	uint32_t age { 0 };
+	uint32_t amp { 0 };
 	adsb_pos pos { false, 0, 0, 0 };
-	adsb_vel velo { false, 0, 999 };
+	adsb_vel velo { false, 0, 999, 0 };
 	ADSBFrame frame_pos_even { };
 	ADSBFrame frame_pos_odd { };
 	
@@ -82,7 +111,7 @@ struct AircraftRecentEntry {
 			frame_pos_odd = frame;
 		
 		if (!frame_pos_even.empty() && !frame_pos_odd.empty()) {
-			if (abs(frame_pos_even.get_rx_timestamp() - frame_pos_odd.get_rx_timestamp()) < 20)
+			if (abs(frame_pos_even.get_rx_timestamp() - frame_pos_odd.get_rx_timestamp()) < O_E_FRAME_TIMEOUT)
 				pos = decode_frame_pos(frame_pos_even, frame_pos_odd);
 		}
 	}
@@ -98,13 +127,21 @@ struct AircraftRecentEntry {
 	void set_time_string(std::string& new_time_string) {
 		time_string = new_time_string;
 	}
-	
+
 	void reset_age() {
 		age = 0;
 	}
 	
 	void inc_age() {
 		age++;
+		if (age < ADSB_DECAY_A)
+		{
+			age_state = pos.valid ? 0 : 1;
+		}
+		else
+		{
+			age_state = (age < ADSB_DECAY_B) ? 2 : 3;
+		}
 	}
 };
 
@@ -137,6 +174,8 @@ public:
 	void update(const AircraftRecentEntry& entry);
 	
 	std::string title() const override { return "Details"; };
+
+	AircraftRecentEntry get_current_entry() { return entry_copy; }
 	
 private:
 	AircraftRecentEntry entry_copy { 0 };
@@ -213,16 +252,30 @@ public:
 	
 	std::string title() const override { return "ADS-B receive"; };
 
+	void replace_entry(AircraftRecentEntry & entry);
+	AircraftRecentEntry find_or_create_entry(uint32_t ICAO_address);
+	void sort_entries_by_state();
+
 private:
+	rf::Frequency prevFreq;
 	std::unique_ptr<ADSBLogger> logger { };
 	void on_frame(const ADSBFrameMessage * message);
 	void on_tick_second();
 	
 	const RecentEntriesColumns columns { {
+#if false
 		{ "ICAO", 6 },
 		{ "Callsign", 9 },
 		{ "Hits", 4 },
 		{ "Time", 8 }
+#else
+		{ "ICAO/Call", 9 },
+		{ "Lvl", 3 },
+		{ "Spd", 3 },
+		{ "Amp", 3 },
+		{ "Hit", 3 },
+		{ "Age", 3 }
+#endif
 	} };
 	AircraftRecentEntries recent { };
 	RecentEntriesView<RecentEntries<AircraftRecentEntry>> recent_entries_view { columns, recent };

firmware/application/apps/ui_aprs_rx.cpp

@@ -48,7 +48,7 @@ void RecentEntriesTable<APRSRecentEntries>::draw(
 ) {
 	char aged_color;
 	Color target_color;
-	auto entry_age = entry.age;
+	// auto entry_age = entry.age;
 	
 	target_color = Color::green();
 
@@ -342,7 +342,7 @@ void APRSDetailsView::set_entry(const APRSRecentEntry& entry){
 
 void APRSDetailsView::update() {	
 	if(!hidden()){		
-		uint32_t age = entry_copy.age;
+		//uint32_t age = entry_copy.age;
 		
 		console.clear(true);
 		console.write(entry_copy.info_string);

firmware/application/apps/ui_freqman.cpp

@@ -48,6 +48,9 @@ FreqManBaseView::FreqManBaseView(
 	} else
 		error_ = ERROR_NOFILES;
 	
+	// initialize
+	change_category(last_category_id);
+	
 	// Default function
 	on_change_category = [this](int32_t category_id) {
 		change_category(category_id);

firmware/application/apps/ui_freqman.hpp

@@ -64,7 +64,7 @@ protected:
 	
 	OptionsField options_category {
 		{ 9 * 8, 4 },
-		12,
+		14,
 		{ }
 	};
 	
@@ -103,19 +103,19 @@ private:
 	};
 	
 	Labels labels {
-		{ { 2 * 8, 14 * 8 }, "Save as:", Color::white() }
+		{ { 1 * 8, 12 * 8 }, "Save as:", Color::white() }
 	};
 	
 	Button button_save_name {
-		{ 2 * 8, 17 * 8, 14 * 8, 48 },
+		{ 1 * 8, 17 * 8, 12 * 8, 48 },
 		"Name (set)"
 	};
 	Button button_save_timestamp {
-		{ 2 * 8, 25 * 8, 14 * 8, 48 },
+		{ 1 * 8, 25 * 8, 12 * 8, 48 },
 		"Timestamp:"
 	};
 	LiveDateTime live_timestamp {
-		{ 17 * 8, 27 * 8, 11 * 8, 16 }
+		{ 14 * 8, 27 * 8, 16 * 8, 16 }
 	};
 };
 

firmware/application/apps/ui_settings.cpp

@@ -285,15 +285,17 @@ SetUIView::SetUIView(NavigationView& nav) {
 		&checkbox_bloff,
 		&options_bloff,
 		&checkbox_showsplash,
+		&checkbox_showclock,
+		&options_clockformat,		
 		&button_ok
 	});
 	
 	checkbox_speaker.set_value(persistent_memory::config_speaker());
 	checkbox_showsplash.set_value(persistent_memory::config_splash());
+	checkbox_showclock.set_value(!persistent_memory::hide_clock());
 	//checkbox_login.set_value(persistent_memory::config_login());
 	
 	uint32_t backlight_timer = persistent_memory::config_backlight_timer();
-	
 	if (backlight_timer) {
 		checkbox_bloff.set_value(true);
 		options_bloff.set_by_value(backlight_timer);
@@ -301,6 +303,12 @@ SetUIView::SetUIView(NavigationView& nav) {
 		options_bloff.set_selected_index(0);
 	}
 
+	if (persistent_memory::clock_with_date()) {
+		options_clockformat.set_selected_index(1);
+	} else {
+		options_clockformat.set_selected_index(0);
+	}
+
 	checkbox_speaker.on_select = [this](Checkbox&, bool v) {
     		if (v) audio::output::speaker_mute();		//Just mute audio if speaker is disabled
 
@@ -316,7 +324,14 @@ SetUIView::SetUIView(NavigationView& nav) {
 		else
 			persistent_memory::set_config_backlight_timer(0);
 		
+		if (checkbox_showclock.value()){
+		    if (options_clockformat.selected_index() == 1)
+			    persistent_memory::set_clock_with_date(true);    
+     		else
+			    persistent_memory::set_clock_with_date(false);		
+		}		
 		persistent_memory::set_config_splash(checkbox_showsplash.value());
+		persistent_memory::set_clock_hidden(!checkbox_showclock.value());
 		//persistent_memory::set_config_login(checkbox_login.value());
 		nav.pop();
 	};

firmware/application/apps/ui_settings.hpp

@@ -51,8 +51,8 @@ public:
 
 private:
 	Labels labels {
-		{ { 6 * 8, 7 * 16 }, "YYYY/MM/DD HH:MM:SS", Color::grey() },
-		{ { 10 * 8, 9 * 16 }, "/  /     :  :", Color::light_grey() }
+		{ { 6 * 8, 7 * 16 }, "YYYY-MM-DD HH:MM:SS", Color::grey() },
+		{ { 10 * 8, 9 * 16 }, "-  -     :  :", Color::light_grey() }
 	};
 	
 	NumberField field_year {
@@ -226,19 +226,19 @@ private:
 	};*/
 	
 	Checkbox checkbox_speaker {
-		{ 3 * 8, 2 * 16 },
+		{ 3 * 8, 4 * 16 },
 		20,
 		"Hide H1 Speaker option"
 	};
+	
 	Checkbox checkbox_bloff {
-		{ 3 * 8, 5 * 16 },
+		{ 3 * 8, 6 * 16 },
 		20,
 		"Backlight off after:"
 	};
-
 	OptionsField options_bloff {
-		{ 52, 6 * 16 + 8 },
-		10,
+		{ 52, 7 * 16 + 8 },
+		20,
 		{
 			{ "5 seconds", 5 },
 			{ "15 seconds", 15 },
@@ -252,10 +252,25 @@ private:
 	
 	Checkbox checkbox_showsplash {
 		{ 3 * 8, 9 * 16 },
-		11,
+		20,
 		"Show splash"
 	};
 	
+	Checkbox checkbox_showclock {	
+		{ 3 * 8, 11 * 16 },
+		20,
+		"Show clock with:"
+	};
+
+	OptionsField options_clockformat {
+		{ 52, 12 * 16 + 8 },
+		20,
+		{
+			{ "time only", 0 },
+			{ "time and date", 1 }
+		}
+	};	
+	
 	Button button_ok {
 		{ 2 * 8, 16 * 16, 12 * 8, 32 },
 		"Save"

firmware/application/apps/ui_sonde.cpp

@@ -22,6 +22,7 @@
 
 #include "ui_sonde.hpp"
 #include "baseband_api.hpp"
+#include "audio.hpp"
 
 #include "portapack.hpp"
 #include <cstring>
@@ -50,6 +51,8 @@ SondeView::SondeView(NavigationView& nav) {
 		&field_lna,
 		&field_vga,
 		&rssi,
+		&field_volume,
+		&check_beep,
 		&check_log,
 		&check_crc,
 		&text_signature,
@@ -63,6 +66,9 @@ SondeView::SondeView(NavigationView& nav) {
 		&button_see_map
 	});
 
+	// start from the frequency currently stored in the receiver_model:
+	target_frequency_ = receiver_model.tuning_frequency();
+
 	field_frequency.set_value(target_frequency_);
 	field_frequency.set_step(500);		//euquiq: was 10000, but we are using this for fine-tunning
 	field_frequency.on_change = [this](rf::Frequency f) {
@@ -80,6 +86,10 @@ SondeView::SondeView(NavigationView& nav) {
 	
 	geopos.set_read_only(true);
 	
+	check_beep.on_select = [this](Checkbox&, bool v) {
+		beep = v;
+	};
+
 	check_log.on_select = [this](Checkbox&, bool v) {
 		logging = v;
 	};
@@ -107,16 +117,37 @@ SondeView::SondeView(NavigationView& nav) {
 			gps_info.lon,
 			999); //set a dummy heading out of range to draw a cross...probably not ideal?
 	};
-	
+
 	logger = std::make_unique<SondeLogger>();
 	if (logger)
 		logger->append(u"sonde.txt");
+
+	// initialize audio:
 	
+	field_volume.set_value((receiver_model.headphone_volume() - audio::headphone::volume_range().max).decibel() + 99);
+	
+	field_volume.on_change = [this](int32_t v) {
+		this->on_headphone_volume_changed(v);
+	};
+
+	audio::output::start();
+	audio::output::speaker_unmute();
+
+	// inject a PitchRSSIConfigureMessage in order to arm 
+	// the pitch rssi events that will be used by the 
+	// processor:
+	const PitchRSSIConfigureMessage message { true, 0 };
+
+	shared_memory.application_queue.push(message);
+
+	baseband::set_pitch_rssi(0, true);
 }
 
 SondeView::~SondeView() {
+	baseband::set_pitch_rssi(0, false);
 	radio::disable();
 	baseband::shutdown();
+	audio::output::stop();
 }
 
 void SondeView::focus() {
@@ -156,18 +187,31 @@ void SondeView::on_packet(const sonde::Packet &packet)
 		}
 
 		gps_info = packet.get_GPS_data();
+
 		geopos.set_altitude(gps_info.alt);
 		geopos.set_lat(gps_info.lat);
 		geopos.set_lon(gps_info.lon);
 
-		if (logger && logging)
+		if (logger && logging) {
 			logger->on_packet(packet);
+		}
+
+		if(beep) {
+			baseband::request_beep();
+		}
 	}
 }
 
+void SondeView::on_headphone_volume_changed(int32_t v) {
+	const auto new_volume = volume_t::decibel(v - 99) + audio::headphone::volume_range().max;
+	receiver_model.set_headphone_volume(new_volume);
+}
+
 void SondeView::set_target_frequency(const uint32_t new_value) {
 	target_frequency_ = new_value;
-	radio::set_tuning_frequency(tuning_frequency());
+	//radio::set_tuning_frequency(tuning_frequency());
+	// we better remember the tuned frequency, by using this function instead:
+	receiver_model.set_tuning_frequency(target_frequency_);
 }
 
 uint32_t SondeView::tuning_frequency() const {

firmware/application/apps/ui_sonde.hpp

@@ -55,7 +55,7 @@ class SondeView : public View {
 public:
 	static constexpr uint32_t sampling_rate = 2457600;
 	static constexpr uint32_t baseband_bandwidth = 1750000;
-
+		
 	SondeView(NavigationView& nav);
 	~SondeView();
 
@@ -68,10 +68,14 @@ private:
 	uint32_t target_frequency_ { 402700000 };
 	bool logging { false };
 	bool use_crc { false };
+	bool beep { false };
+
 	sonde::GPS_data gps_info { };
 	sonde::temp_humid temp_humid_info { };
 	std::string sonde_id { };
 	
+	// AudioOutput audio_output { };
+
 	Labels labels {
 		{ { 4 * 8, 2 * 16 }, "Type:", Color::light_grey() },
 		{ { 6 * 8, 3 * 16 }, "ID:", Color::light_grey() },
@@ -103,14 +107,29 @@ private:
 		{ 21 * 8, 0, 6 * 8, 4 },
 	};
 	
+	NumberField field_volume {
+		{ 28 * 8, 0 * 16 },
+		2,
+		{ 0, 99 },
+		1,
+		' ',
+	};
+	
+
+	Checkbox check_beep {
+		{ 22 * 8, 6 * 16 },
+		3,
+		"Beep"
+	};
+
 	Checkbox check_log {
-		{ 23 * 8, 6 * 16 },
+		{ 22 * 8, 8 * 16 },
 		3,
 		"Log"
 	};
 	
 	Checkbox check_crc {
-		{ 23 * 8, 8 * 16 },
+		{ 22 * 8, 10 * 16 },
 		3,
 		"CRC"
 	};
@@ -170,7 +189,10 @@ private:
 	};
 
 	void on_packet(const sonde::Packet& packet);
+	void on_headphone_volume_changed(int32_t v);
+	
 	void set_target_frequency(const uint32_t new_value);
+
 	uint32_t tuning_frequency() const;
 };
 

firmware/application/baseband_api.cpp

@@ -236,11 +236,8 @@ void set_fsk_data(const uint32_t stream_length, const uint32_t samples_per_bit,
 	send_message(&message);
 }
 
-void set_pocsag(const pocsag::BitRate bitrate, bool phase) {
-	const POCSAGConfigureMessage message {
-		bitrate,
-		phase
-	};
+void set_pocsag() {
+	const POCSAGConfigureMessage message {};
 	send_message(&message);
 }
 

firmware/application/baseband_api.hpp

@@ -79,7 +79,7 @@ void set_ook_data(const uint32_t stream_length, const uint32_t samples_per_bit,
 					const uint32_t pause_symbols);
 void set_fsk_data(const uint32_t stream_length, const uint32_t samples_per_bit, const uint32_t shift,
 					const uint32_t progress_notice);
-void set_pocsag(const pocsag::BitRate bitrate, bool phase);
+void set_pocsag();
 void set_adsb();
 void set_jammer(const bool run, const jammer::JammerType type, const uint32_t speed);
 void set_rds_data(const uint16_t message_length);

firmware/application/event_m0.cpp

@@ -298,6 +298,12 @@ void EventDispatcher::handle_switches() {
 	}
 
 	if( in_key_event ) {
+		if (switches_state[(size_t)ui::KeyEvent::Left] && switches_state[(size_t)ui::KeyEvent::Up])
+		{
+			const auto event = static_cast<ui::KeyEvent>(ui::KeyEvent::Back);
+			context.focus_manager().update(top_widget, event);
+		}
+
 		// If we're in a key event, return. We will ignore all additional key
 		// presses until the first key is released. We also want to ignore events
 		// where the last key held generates a key event when other pressed keys

firmware/application/main.cpp

@@ -140,6 +140,9 @@ Continuous (Fox-oring)
 #include "sd_card.hpp"
 
 #include <string.h>
+ 
+#include "rffc507x.hpp"      /* c/m, avoiding initial short ON Ant_DC_Bias pulse, from cold reset  */
+rffc507x::RFFC507x first_if;
 
 static void event_loop() {
 	ui::Context context;
@@ -160,6 +163,7 @@ static void event_loop() {
 }
 
 int main(void) {
+	first_if.init();    /* To avoid initial short Ant_DC_Bias pulse ,we need quick set up GP01_RFF507X =1 */
 	if( portapack::init() ) {
 		portapack::display.init();
 

firmware/application/portapack.cpp

@@ -83,7 +83,7 @@ TransmitterModel transmitter_model;
 TemperatureLogger temperature_logger;
 
 bool antenna_bias { false };
-uint8_t bl_tick_counter { 0 };
+uint32_t bl_tick_counter { 0 };
 
 void set_antenna_bias(const bool v) {
 	antenna_bias = v;

firmware/application/portapack.hpp

@@ -54,7 +54,7 @@ extern TransmitterModel transmitter_model;
 extern bool speaker_mode;
 void set_speaker_mode(const bool v);
 
-extern uint8_t bl_tick_counter;
+extern uint32_t bl_tick_counter;
 extern bool antenna_bias;
 
 extern TemperatureLogger temperature_logger;

firmware/application/radio.cpp

@@ -111,14 +111,12 @@ void set_direction(const rf::Direction new_direction) {
 	// Hack to fix the CPLD (clocking ?) bug: toggle CPLD SRAM overlay depending on new direction
 	// Use CPLD's EEPROM config when transmitting
 	// Use the SRAM overlay when receiving
-	if (direction != new_direction) {
-		if (new_direction == rf::Direction::Transmit) {
-			hackrf::cpld::init_from_eeprom();
-		} else {
-			if( !hackrf::cpld::load_sram() ) {
-				chSysHalt();
-			}
-		}
+
+	// teixeluis: undone "Hack to fix the CPLD (clocking ?) bug".
+	// Apparently with current CPLD code from the hackrf repo,
+	// toggling CPLD overlay should no longer be necessary:
+	if (direction != new_direction && new_direction == rf::Direction::Transmit) {
+		hackrf::cpld::init_from_eeprom();
 	}
 	
 	direction = new_direction;

firmware/application/receiver_model.cpp

@@ -171,7 +171,11 @@ void ReceiverModel::enable() {
 	update_baseband_bandwidth();
 	update_sampling_rate();
 	update_modulation();
+	
+	// TODO: would challenge if this should belong to the
+	// receiver_model namespace:
 	update_headphone_volume();
+
 	led_rx.on();
 }
 
@@ -182,6 +186,10 @@ void ReceiverModel::disable() {
 	// TODO: Responsibility for enabling/disabling the radio is muddy.
 	// Some happens in ReceiverModel, some inside radio namespace.
 	radio::disable();
+
+	// TODO: we are doing this repeatedly in different levels of the
+	// call stack. Keeping it for now, but there seem to be too many
+	// redundant calls:
 	led_rx.off();
 }
 

firmware/application/string_format.cpp

@@ -112,6 +112,23 @@ std::string to_string_dec_int(
 	return q;
 }
 
+std::string to_string_decimal(float decimal, int8_t precision) {
+	double integer_part;
+	double fractional_part;
+
+	std::string result;
+	
+	fractional_part = modf(decimal, &integer_part) * pow(10, precision);
+
+	if (fractional_part < 0) {
+		fractional_part = -fractional_part;
+	}
+
+	result = to_string_dec_int(integer_part) + "." + to_string_dec_uint(fractional_part, precision, '0');
+
+	return result;
+}
+
 std::string to_string_short_freq(const uint64_t f) {
 	auto final_str = to_string_dec_int(f / 1000000,4) + "." + to_string_dec_int((f / 100) % 10000, 4, '0');
 	return final_str;
@@ -165,8 +182,8 @@ std::string to_string_datetime(const rtc::RTC& value, const TimeFormat format) {
 	std::string string { "" };
 	
 	if (format == YMDHMS) {
-		string += to_string_dec_uint(value.year(), 4) + "/" +
-					to_string_dec_uint(value.month(), 2, '0') + "/" +
+		string += to_string_dec_uint(value.year(), 4) + "-" +
+					to_string_dec_uint(value.month(), 2, '0') + "-" +
 					to_string_dec_uint(value.day(), 2, '0') + " ";
 	}
 	
@@ -189,11 +206,11 @@ std::string to_string_timestamp(const rtc::RTC& value) {
 }
 
 std::string to_string_FAT_timestamp(const FATTimestamp& timestamp) {
-	return to_string_dec_uint((timestamp.FAT_date >> 9) + 1980) + "/" +
-		to_string_dec_uint((timestamp.FAT_date >> 5) & 0xF, 2) + "/" +
-		to_string_dec_uint((timestamp.FAT_date & 0x1F), 2) + " " +
-		to_string_dec_uint((timestamp.FAT_time >> 11), 2) + ":" +
-		to_string_dec_uint((timestamp.FAT_time >> 5) & 0x3F, 2);
+	return to_string_dec_uint((timestamp.FAT_date >> 9) + 1980) + "-" +
+		to_string_dec_uint((timestamp.FAT_date >> 5) & 0xF, 2, '0') + "-" +
+		to_string_dec_uint((timestamp.FAT_date & 0x1F), 2, '0') + " " +
+		to_string_dec_uint((timestamp.FAT_time >> 11), 2, '0') + ":" +
+		to_string_dec_uint((timestamp.FAT_time >> 5) & 0x3F, 2, '0');
 }
 
 std::string unit_auto_scale(double n, const uint32_t base_nano, uint32_t precision) {

firmware/application/string_format.hpp

@@ -43,6 +43,8 @@ const char unit_prefix[7] { 'n', 'u', 'm', 0, 'k', 'M', 'G' };
 std::string to_string_bin(const uint32_t n, const uint8_t l = 0);
 std::string to_string_dec_uint(const uint32_t n, const int32_t l = 0, const char fill = ' ');
 std::string to_string_dec_int(const int32_t n, const int32_t l = 0, const char fill = 0);
+std::string to_string_decimal(float decimal, int8_t precision);
+
 std::string to_string_hex(const uint64_t n, const int32_t l = 0);
 std::string to_string_hex_array(uint8_t * const array, const int32_t l = 0);
 

firmware/application/ui/ui_geomap.cpp

@@ -63,17 +63,9 @@ GeoPos::GeoPos(
 	const auto changed_fn = [this](int32_t) {
 		float lat_value = lat();
 		float lon_value = lon();
-		double integer_part;
-		double fractional_part;
-		
-		fractional_part = modf(lat_value, &integer_part) * 100000;
-		if (fractional_part < 0)
-			fractional_part = -fractional_part;
-		text_lat_decimal.set(to_string_dec_int(integer_part) + "." + to_string_dec_uint(fractional_part, 5));
-		fractional_part = modf(lon_value, &integer_part) * 100000;
-		if (fractional_part < 0)
-			fractional_part = -fractional_part;
-		text_lon_decimal.set(to_string_dec_int(integer_part) + "." + to_string_dec_uint(fractional_part, 5));
+
+		text_lat_decimal.set(to_string_decimal(lat_value, 5));
+		text_lon_decimal.set(to_string_decimal(lon_value, 5));
 	
 		if (on_change && report_change)
 			on_change(altitude(), lat_value, lon_value);

firmware/application/ui/ui_rssi.cpp

@@ -75,8 +75,9 @@ void RSSI::paint(Painter& painter) {
 		Color::black()
 	);
 	
-	if (pitch_rssi_enabled)
+	if (pitch_rssi_enabled) {
 		baseband::set_pitch_rssi((avg_ - raw_min) * 2000 / raw_delta, true);
+	}
 }
 
 void RSSI::set_pitch_rssi(bool enabled) {

firmware/application/ui/ui_transmitter.cpp

@@ -103,6 +103,7 @@ void TransmitterView::set_transmitting(const bool transmitting) {
 
 void TransmitterView::on_show() {
 	field_frequency.set_value(transmitter_model.tuning_frequency());
+	field_frequency_step.set_by_value(receiver_model.frequency_step());
 
 	field_gain.set_value(transmitter_model.tx_gain());
 	field_amp.set_value(transmitter_model.rf_amp() ? 14 : 0);
@@ -122,6 +123,7 @@ TransmitterView::TransmitterView(
 	
 	add_children({
 		&field_frequency,
+		&field_frequency_step,
 		&text_gain,
 		&field_gain,
 		&button_start,
@@ -157,6 +159,10 @@ TransmitterView::TransmitterView(
 		if (on_edit_frequency)
 			on_edit_frequency();
 	};
+	
+	field_frequency_step.on_change = [this](size_t, OptionsField::value_t v) {
+		this->field_frequency.set_step(v);
+	};
 
 	field_gain.on_change = [this](uint32_t tx_gain) {
 		on_tx_gain_changed(tx_gain);

firmware/application/ui/ui_transmitter.hpp

@@ -124,11 +124,11 @@ private:
 	};
 
 	Text text_bw {
-		{ 11 * 8, 1 * 8, 9 * 8, 1 * 16 },
-		"BW:   kHz"
+		{ 18 * 8, 1 * 8, 3 * 8, 1 * 16 },
+		"kHz"
 	};
 	NumberField field_bw {
-		{ 14 * 8, 1 * 8 },
+		{ 15 * 8, 1 * 8 },
 		3,
 		{ 1, 150 },
 		1,
@@ -152,6 +152,10 @@ private:
 		{ 21 * 8, 1 * 8, 9 * 8, 32 },
 		"START"
 	};
+	
+	FrequencyStepView field_frequency_step {
+		{ 10 * 8 - 4, 1 * 8 },
+	};
 
 	void on_tuning_frequency_changed(rf::Frequency f);
 	void on_channel_bandwidth_changed(uint32_t channel_bandwidth);

firmware/application/ui_navigation.cpp

@@ -68,7 +68,7 @@
 #include "ui_view_wav.hpp"
 #include "ui_whipcalc.hpp"
 
-#include "acars_app.hpp"
+//#include "acars_app.hpp"
 #include "ais_app.hpp"
 #include "analog_audio_app.hpp"
 #include "analog_tv_app.hpp"
@@ -350,13 +350,21 @@ InformationView::InformationView(
 	});
 
 	version.set_style(&style_infobar);
+
+	ltime.set_hide_clock(portapack::persistent_memory::hide_clock());
 	ltime.set_style(&style_infobar);
 	ltime.set_seconds_enabled(true);
-	ltime.set_date_enabled(false);
-
+	ltime.set_date_enabled(portapack::persistent_memory::clock_with_date());
 	set_dirty();
 }
 
+void InformationView::refresh() {
+	ltime.set_hide_clock(portapack::persistent_memory::hide_clock());
+	ltime.set_seconds_enabled(true);
+	ltime.set_date_enabled(portapack::persistent_memory::clock_with_date());	
+
+}
+
 /* Navigation ************************************************************/
 
 bool NavigationView::is_top() const {
@@ -387,6 +395,7 @@ void NavigationView::pop() {
 
 		update_view();
 	}
+
 }
 
 void NavigationView::pop_modal() {
@@ -606,6 +615,7 @@ SystemView::SystemView(
 		}
 		else{
 			add_child(&info_view);
+			info_view.refresh();
 		}
 		
 		this->status_view.set_back_enabled(!this->navigation_view.is_top());
@@ -660,7 +670,8 @@ BMPView::BMPView(NavigationView& nav) {
 }
 
 void BMPView::paint(Painter&) {
-	portapack::display.drawBMP({(240 - 230) / 2, (320 - 50) / 2 - 10}, splash_bmp, false);
+	if(!portapack::display.drawBMP2({ 0, 0 }, "splash.bmp"))
+		portapack::display.drawBMP({(240 - 230) / 2, (320 - 50) / 2 - 10}, splash_bmp, false);
 }
 
 /* NotImplementedView ****************************************************/

firmware/application/ui_navigation.hpp

@@ -45,253 +45,252 @@
 
 using namespace sd_card;
 
-namespace ui {
+namespace ui
+{
 
-enum modal_t {
-	INFO = 0,
-	YESNO,
-	YESCANCEL,
-	ABORT
-};
-
-class NavigationView : public View {
-public:
-	std::function<void(const View&)> on_view_changed { };
-
-	NavigationView() = default;
-
-	NavigationView(const NavigationView&) = delete;
-	NavigationView(NavigationView&&) = delete;
-	NavigationView& operator=(const NavigationView&) = delete;
-	NavigationView& operator=(NavigationView&&) = delete;
-
-	bool is_top() const;
-
-	template<class T, class... Args>
-	T* push(Args&&... args) {
-		return reinterpret_cast<T*>(push_view(std::unique_ptr<View>(new T(*this, std::forward<Args>(args)...))));
-	}
-	template<class T, class... Args>
-	T* replace(Args&&... args) {
-		pop();
-		return reinterpret_cast<T*>(push_view(std::unique_ptr<View>(new T(*this, std::forward<Args>(args)...))));
-	}
-	
-	void push(View* v);
-	void replace(View* v);
-
-	void pop();
-	void pop_modal();
-
-	void display_modal(const std::string& title, const std::string& message);
-	void display_modal(const std::string& title, const std::string& message, const modal_t type, const std::function<void(bool)> on_choice = nullptr);
-
-	void focus() override;
-
-private:
-	std::vector<std::unique_ptr<View>> view_stack { };
-	Widget* modal_view { nullptr };
-
-	Widget* view() const;
-
-	void free_view();
-	void update_view();
-	View* push_view(std::unique_ptr<View> new_view);
-};
-
-class SystemStatusView : public View {
-public:
-	std::function<void(void)> on_back { };
-
-	SystemStatusView(NavigationView& nav);
-
-	void set_back_enabled(bool new_value);
-	void set_title_image_enabled(bool new_value);
-	void set_title(const std::string new_value);
-
-private:
-	static constexpr auto default_title = "";
-	
-	NavigationView& nav_;
-
-	Rectangle backdrop {
-		{ 0 * 8, 0 * 16, 240, 16 },
-		Color::dark_grey()
+	enum modal_t
+	{
+		INFO = 0,
+		YESNO,
+		YESCANCEL,
+		ABORT
 	};
 
-	ImageButton button_back {
-		{ 2, 0 * 16, 16, 16 },
-		&bitmap_icon_previous,
-		Color::white(),
-		Color::dark_grey()
+	class NavigationView : public View
+	{
+	public:
+		std::function<void(const View &)> on_view_changed{};
+
+		NavigationView() = default;
+
+		NavigationView(const NavigationView &) = delete;
+		NavigationView(NavigationView &&) = delete;
+		NavigationView &operator=(const NavigationView &) = delete;
+		NavigationView &operator=(NavigationView &&) = delete;
+
+		bool is_top() const;
+
+		template <class T, class... Args>
+		T *push(Args &&...args)
+		{
+			return reinterpret_cast<T *>(push_view(std::unique_ptr<View>(new T(*this, std::forward<Args>(args)...))));
+		}
+		template <class T, class... Args>
+		T *replace(Args &&...args)
+		{
+			pop();
+			return reinterpret_cast<T *>(push_view(std::unique_ptr<View>(new T(*this, std::forward<Args>(args)...))));
+		}
+
+		void push(View *v);
+		void replace(View *v);
+
+		void pop();
+		void pop_modal();
+
+		void display_modal(const std::string &title, const std::string &message);
+		void display_modal(const std::string &title, const std::string &message, const modal_t type, const std::function<void(bool)> on_choice = nullptr);
+
+		void focus() override;
+
+	private:
+		std::vector<std::unique_ptr<View>> view_stack{};
+		Widget *modal_view{nullptr};
+
+		Widget *view() const;
+
+		void free_view();
+		void update_view();
+		View *push_view(std::unique_ptr<View> new_view);
 	};
 
-	Text title {
-		{ 20, 0, 14 * 8, 1 * 16 },
-		default_title,
-	};
+	class SystemStatusView : public View
+	{
+	public:
+		std::function<void(void)> on_back{};
 
-	ImageButton button_title {
-		{2, 0, 80, 16},
-		&bitmap_titlebar_image,
-		Color::white(),
-		Color::dark_grey()
-	};
+		SystemStatusView(NavigationView &nav);
 
-	ImageButton button_speaker {
- 		{ 17 * 8, 0, 2 * 8, 1 * 16 },
- 		&bitmap_icon_speaker_mute,
- 		Color::light_grey(),
- 		Color::dark_grey()
- 	};
-	
-	ImageButton button_stealth {
-		{ 19 * 8, 0, 2 * 8, 1 * 16 },
-		&bitmap_icon_stealth,
-		Color::light_grey(),
-		Color::dark_grey()
-	};
-	
-	/*ImageButton button_textentry {
+		void set_back_enabled(bool new_value);
+		void set_title_image_enabled(bool new_value);
+		void set_title(const std::string new_value);
+
+	private:
+		static constexpr auto default_title = "";
+
+		NavigationView &nav_;
+
+		Rectangle backdrop{
+			{0 * 8, 0 * 16, 240, 16},
+			Color::dark_grey()};
+
+		ImageButton button_back{
+			{2, 0 * 16, 16, 16},
+			&bitmap_icon_previous,
+			Color::white(),
+			Color::dark_grey()};
+
+		Text title{
+			{20, 0, 14 * 8, 1 * 16},
+			default_title,
+		};
+
+		ImageButton button_title{
+			{2, 0, 80, 16},
+			&bitmap_titlebar_image,
+			Color::white(),
+			Color::dark_grey()};
+
+		ImageButton button_speaker{
+			{17 * 8, 0, 2 * 8, 1 * 16},
+			&bitmap_icon_speaker_mute,
+			Color::light_grey(),
+			Color::dark_grey()};
+
+		ImageButton button_stealth{
+			{19 * 8, 0, 2 * 8, 1 * 16},
+			&bitmap_icon_stealth,
+			Color::light_grey(),
+			Color::dark_grey()};
+
+		/*ImageButton button_textentry {
 		{ 170, 0, 2 * 8, 1 * 16 },
 		&bitmap_icon_unistroke,
 		Color::white(),
 		Color::dark_grey()
 	};*/
 
-	ImageButton button_camera {
-		{ 21 * 8, 0, 2 * 8, 1 * 16 },
-		&bitmap_icon_camera,
-		Color::white(),
-		Color::dark_grey()
+		ImageButton button_camera{
+			{21 * 8, 0, 2 * 8, 1 * 16},
+			&bitmap_icon_camera,
+			Color::white(),
+			Color::dark_grey()};
+
+		ImageButton button_sleep{
+			{23 * 8, 0, 2 * 8, 1 * 16},
+			&bitmap_icon_sleep,
+			Color::white(),
+			Color::dark_grey()};
+
+		ImageButton button_bias_tee{
+			{25 * 8, 0, 12, 1 * 16},
+			&bitmap_icon_biast_off,
+			Color::light_grey(),
+			Color::dark_grey()};
+
+		ImageButton button_clock_status{
+			{27 * 8, 0 * 16, 2 * 8, 1 * 16},
+			&bitmap_icon_clk_int,
+			Color::light_grey(),
+			Color::dark_grey()};
+
+		SDCardStatusView sd_card_status_view{
+			{28 * 8, 0 * 16, 2 * 8, 1 * 16}};
+
+		void on_speaker();
+		void on_stealth();
+		void on_bias_tee();
+		//void on_textentry();
+		void on_camera();
+		void on_title();
+		void refresh();
+		void on_clk();
+
+		MessageHandlerRegistration message_handler_refresh{
+			Message::ID::StatusRefresh,
+			[this](const Message *const p)
+			{
+				(void)p;
+				this->refresh();
+			}};
 	};
 
-	ImageButton button_sleep {
-		{ 23 * 8, 0, 2 * 8, 1 * 16 },
-		&bitmap_icon_sleep,
-		Color::white(),
-		Color::dark_grey()
-	};
-	
-	ImageButton button_bias_tee {
-		{ 25 * 8, 0, 12, 1 * 16 },
-		&bitmap_icon_biast_off,
-		Color::light_grey(),
-		Color::dark_grey()
-	};
-	
-	ImageButton button_clock_status {
-		{ 27 * 8, 0 * 16,  2 * 8, 1 * 16 },
-		&bitmap_icon_clk_int,
-		Color::light_grey(),
-		Color::dark_grey()
-	};
-	
-	SDCardStatusView sd_card_status_view {
-		{ 28 * 8, 0 * 16,  2 * 8, 1 * 16 }
+	class InformationView : public View
+	{
+	public:
+		InformationView(NavigationView &nav);
+		void refresh();
+
+	private:
+		static constexpr auto version_string = "v1.4.2";
+		NavigationView &nav_;
+
+		Rectangle backdrop{
+			{0, 0 * 16, 240, 16},
+			{33, 33, 33}};
+
+		Text version{
+			{2, 0, 11 * 8, 16},
+			version_string};
+
+		LiveDateTime ltime{
+			{86, 0, 19 * 8, 16}};
 	};
 
-	void on_speaker();
-	void on_stealth();
-	void on_bias_tee();
-	//void on_textentry();
-	void on_camera();
-	void on_title();
-	void refresh();
-	void on_clk();
-	
-	MessageHandlerRegistration message_handler_refresh {
-		Message::ID::StatusRefresh,
-		[this](const Message* const p) {
-			(void)p;
-			this->refresh();
-		}
-	};
-};
+	class BMPView : public View
+	{
+	public:
+		BMPView(NavigationView &nav);
+		void paint(Painter &) override;
+		void focus() override;
 
-class InformationView : public View {
-public:
-	InformationView(NavigationView& nav);
-	
-private:
-	static constexpr auto version_string = "v1.3.1";
-	NavigationView& nav_;
+	private:
+		Text text_info{
+			{4 * 8, 284, 20 * 8, 16},
+			"Version " VERSION_STRING};
 
-	Rectangle backdrop {
-		{ 0, 0 * 16, 240, 16 },
-		{33, 33, 33}
+		Button button_done{
+			{240, 0, 1, 1},
+			""};
 	};
 
-	Text version {
-		{2, 0, 11 * 8, 16},
-		version_string
+	class ReceiversMenuView : public BtnGridView
+	{
+	public:
+		ReceiversMenuView(NavigationView &nav);
+		std::string title() const override { return "Receivers"; };
 	};
-	
-	LiveDateTime ltime {
-		{174, 0, 8 * 8, 16}
+
+	class TransmittersMenuView : public BtnGridView
+	{
+	public:
+		TransmittersMenuView(NavigationView &nav);
+		std::string title() const override { return "Transmitters"; };
 	};
-};
 
-class BMPView : public View {
-public:
-	BMPView(NavigationView& nav);
-	void paint(Painter&) override;
-	void focus() override;
-
-private:
-	Text text_info {
-		{ 4*8, 284, 20 * 8, 16 },
-		"Version " VERSION_STRING
+	class UtilitiesMenuView : public BtnGridView
+	{
+	public:
+		UtilitiesMenuView(NavigationView &nav);
+		std::string title() const override { return "Utilities"; };
 	};
-	
-	Button button_done {
-		{ 240, 0, 1, 1 },
-		""
+
+	class SystemMenuView : public BtnGridView
+	{
+	public:
+		SystemMenuView(NavigationView &nav);
+
+	private:
+		void hackrf_mode(NavigationView &nav);
 	};
-};
 
-class ReceiversMenuView : public BtnGridView {
-public:
-	ReceiversMenuView(NavigationView& nav);
-	std::string title() const override { return "Receivers"; };
-};
+	class SystemView : public View
+	{
+	public:
+		SystemView(
+			Context &context,
+			const Rect parent_rect);
 
-class TransmittersMenuView : public BtnGridView {
-public:
-	TransmittersMenuView(NavigationView& nav);
-	std::string title() const override { return "Transmitters"; };
-};
+		Context &context() const override;
 
-class UtilitiesMenuView : public BtnGridView {
-public:
-	UtilitiesMenuView(NavigationView& nav);
-	std::string title() const override { return "Utilities"; };	
-};
+	private:
+		SystemStatusView status_view{navigation_view};
+		InformationView info_view{navigation_view};
+		NavigationView navigation_view{};
+		Context &context_;
+	};
 
-class SystemMenuView : public BtnGridView {
-public:
-	SystemMenuView(NavigationView& nav);
-private:
-	void hackrf_mode(NavigationView& nav);
-};
-
-class SystemView : public View {
-public:
-	SystemView(
-		Context& context,
-		const Rect parent_rect
-	);
-
-	Context& context() const override;
-
-private:
-	SystemStatusView status_view { navigation_view };
-	InformationView info_view { navigation_view };
-	NavigationView navigation_view { };
-	Context& context_;
-};
-
-/*class NotImplementedView : public View {
+	/*class NotImplementedView : public View {
 public:
 	NotImplementedView(NavigationView& nav);
 
@@ -309,43 +308,43 @@ private:
 	};
 };*/
 
-class ModalMessageView : public View {
-public:
-	ModalMessageView(
-		NavigationView& nav,
-		const std::string& title,
-		const std::string& message,
-		const modal_t type,
-		const std::function<void(bool)> on_choice
-	);
-	
-	void paint(Painter& painter) override;
-	void focus() override;
+	class ModalMessageView : public View
+	{
+	public:
+		ModalMessageView(
+			NavigationView &nav,
+			const std::string &title,
+			const std::string &message,
+			const modal_t type,
+			const std::function<void(bool)> on_choice);
 
-	std::string title() const override { return title_; };
+		void paint(Painter &painter) override;
+		void focus() override;
 
-private:
-	const std::string title_;
-	const std::string message_;
-	const modal_t type_;
-	const std::function<void(bool)> on_choice_;
+		std::string title() const override { return title_; };
 
-	Button button_ok {
-		{ 10 * 8, 14 * 16, 10 * 8, 48 },
-		"OK",
+	private:
+		const std::string title_;
+		const std::string message_;
+		const modal_t type_;
+		const std::function<void(bool)> on_choice_;
+
+		Button button_ok{
+			{10 * 8, 14 * 16, 10 * 8, 48},
+			"OK",
+		};
+
+		Button button_yes{
+			{5 * 8, 14 * 16, 8 * 8, 48},
+			"YES",
+		};
+
+		Button button_no{
+			{17 * 8, 14 * 16, 8 * 8, 48},
+			"NO",
+		};
 	};
-	
-	Button button_yes {
-		{ 5 * 8, 14 * 16, 8 * 8, 48 },
-		"YES",
-	};
-
-	Button button_no {
-		{ 17 * 8, 14 * 16, 8 * 8, 48 },
-		"NO",
-	};
-};
 
 } /* namespace ui */
 
-#endif/*__UI_NAVIGATION_H__*/
+#endif /*__UI_NAVIGATION_H__*/

firmware/baseband/dsp_modulate.cpp

@@ -114,7 +114,7 @@ AM::AM() {
 
 void AM::execute(const buffer_s16_t& audio, const buffer_c8_t& buffer) {
 	int32_t         sample = 0;
-	int8_t          re, im;
+	int8_t          re = 0, im = 0;
 	float		q = 0.0;
 	
 	for (size_t counter = 0; counter < buffer.count; counter++) {
@@ -125,8 +125,8 @@ void AM::execute(const buffer_s16_t& audio, const buffer_c8_t& buffer) {
 		q = sample / 32768.0f;
 		q *= 64.0f;
 		switch (mode) {
-			case Mode::AM:	re = q + 20; im = q + 20;
-			case Mode::DSB:	re = q; im = q;
+			case Mode::AM:	re = q + 20; im = q + 20; break;
+			case Mode::DSB:	re = q; im = q; break;
 			default:	break;
 		}
 		buffer.p[counter] = { re, im };

firmware/baseband/proc_adsbrx.cpp

@@ -32,115 +32,125 @@ using namespace adsb;
 	
 void ADSBRXProcessor::execute(const buffer_c8_t& buffer) {
 	int8_t re, im;
-	float mag;
+	uint32_t mag;
 	uint32_t c;
-	uint8_t level, bit, byte { };
-	//bool confidence;
-	bool first_in_window, last_in_window;
+	uint8_t bit, byte{};
 	
 	// This is called at 2M/2048 = 977Hz
 	// One pulse = 500ns = 2 samples
 	// One bit = 2 pulses = 1us = 4 samples
-	
+
 	if (!configured) return;
 	
 	for (size_t i = 0; i < buffer.count; i++) {
 		
 		// Compute sample's magnitude
-		re = buffer.p[i].real();
-		im = buffer.p[i].imag();
-		mag = __builtin_sqrtf((re * re) + (im * im)) * k;
-		
-		// Only used for preamble detection and visualisation
-		level = (mag < 0.3) ? 0 :		// Blank weak signals
-					(mag > prev_mag) ? 1 : 0;
-		
+		re = (int32_t)buffer.p[i].real(); // make re float and scale it
+		im = (int32_t)buffer.p[i].imag(); // make re float and scale it
+		mag = ((uint32_t)(re*re) + (uint32_t)(im*im));
+
 		if (decoding) {
 			// Decode
 			
 			// 1 bit lasts 2 samples
 			if (sample_count & 1) {
-				if ((prev_mag < threshold_low) && (mag < threshold_low)) {
-					// Both under window, silence.
-					if (null_count > 3) {
-						const ADSBFrameMessage message(frame);
-						shared_memory.application_queue.push(message);
-							
-						decoding = false;
-					} else
-						null_count++;
-						
-					//confidence = false;
-					if (prev_mag > mag)
-						bit = 1;
-					else
-						bit = 0;
-					
-				} else {
-					
-					null_count = 0;
-				
-					first_in_window = ((prev_mag >= threshold_low) && (prev_mag <= threshold_high));
-					last_in_window = ((mag >= threshold_low) && (mag <= threshold_high));
-					
-					if ((first_in_window && !last_in_window) || (!first_in_window && last_in_window)) {
-						//confidence = true;
-						if (prev_mag > mag)
-							bit = 1;
-						else
-							bit = 0;
-					} else {
-						//confidence = false;
-						if (prev_mag > mag)
-							bit = 1;
-						else
-							bit = 0;
-					}
+				if (bit_count >= msgLen)
+				{
+					const ADSBFrameMessage message(frame, amp);
+					shared_memory.application_queue.push(message);
+					decoding = false;
+					bit = (prev_mag > mag) ? 1 : 0;
+				}
+				else 
+				{
+					//confidence = true;
+					bit = (prev_mag > mag) ? 1 : 0;
 				}
 				
 				byte = bit | (byte << 1);
 				bit_count++;
+
+				// Perform checks at the end of the first byte
 				if (!(bit_count & 7)) {
-					// Got one byte
+
+					// Store the byte
 					frame.push_byte(byte);
-				}
-			}
+
+					// Check at the end of the first byte of the message
+					uint8_t df = (byte >> 3);
+					if ( (bit_count == 8) && !(df & 0x10) ) {
+						msgLen = 56; // DFs 16 or greater are long 112. DFs 15 or less are short 56.
+					}
+
+					// Abondon all frames that arent DF17 or DF18 extended squitters
+					if ( (bit_count == 8) && !((df == 17)||(df == 18)) ) {
+						decoding = false;
+						bit = (prev_mag > mag) ? 1 : 0;
+						frame.clear();
+					}
+				} // last bit of a byte
+			} // Second sample of each bit
 			sample_count++;
-		} else {
-			// Look for preamble
-			
-			// Shift
-			for (c = 0; c < (ADSB_PREAMBLE_LENGTH - 1); c++)
-				shifter[c] = shifter[c + 1];
-			shifter[15] = std::make_pair(mag, level);
-			
-			// Compare
-			for (c = 0; c < ADSB_PREAMBLE_LENGTH; c++) {
-				if (shifter[c].second != adsb_preamble[c])
-					break;
-			}
-				
-			if (c == ADSB_PREAMBLE_LENGTH) {
-				decoding = true;
-				sample_count = 0;
-				null_count = 0;
-				bit_count = 0;
-				frame.clear();
-				
-				// Compute preamble pulses power to set thresholds
-				threshold = (shifter[0].first + shifter[2].first + shifter[7].first + shifter[9].first) / 4;
-				threshold_high = threshold * 1.414;		// +3dB
-				threshold_low = threshold * 0.707;		// -3dB
-			}
 		}
-		
+
+		// Continue looking for preamble even if in a packet
+		// switch is new preamble id higher magnitude
+			
+		// Shift the preamble
+		for (c = 0; c < (ADSB_PREAMBLE_LENGTH ); c++) { shifter[c] = shifter[c + 1]; }
+		shifter[ADSB_PREAMBLE_LENGTH] = mag;
+			
+		// First check of relations between the first 10 samples
+		// representing a valid preamble. We don't even investigate further
+		// if this simple test is not passed
+		if (shifter[0] < shifter[1] && 
+			shifter[1] > shifter[2] &&
+			shifter[2] < shifter[3] &&
+			shifter[3] > shifter[4] &&
+			shifter[4] < shifter[1] &&
+			shifter[5] < shifter[1] &&
+			shifter[6] < shifter[1] &&
+			shifter[7] < shifter[1] &&
+			shifter[8] > shifter[9] &&
+			shifter[9] < shifter[10] &&
+			shifter[10]> shifter[11] )
+		{
+			// The samples between the two spikes must be < than the average
+			// of the high spikes level. We don't test bits too near to
+			// the high levels as signals can be out of phase so part of the
+			// energy can be in the near samples
+			int32_t thisAmp = (shifter[1] + shifter[3] + shifter[8] + shifter[10]);
+			int32_t high = thisAmp / 9;
+			if (
+				shifter[5] < high &&
+				shifter[6] < high &&
+				// Similarly samples in the range 11-13 must be low, as it is the
+				// space between the preamble and real data. Again we don't test
+				// bits too near to high levels, see above
+				shifter[12] < high &&
+				shifter[13] < high &&
+				shifter[14] < high )
+			{
+				if ((decoding == false) ||					   // New preamble
+					((decoding == true) && (thisAmp > amp)))   // Higher power than existing packet
+				{
+					decoding = true;
+					msgLen = 112;
+					amp = thisAmp;
+					sample_count = 0;
+					bit_count = 0;
+					frame.clear();
+				}
+			} // 4 & 5 low and 11-14 low
+		} // Check for preamble pattern
+
+		// Store mag for next time
 		prev_mag = mag;
 	}
 }
 
 void ADSBRXProcessor::on_message(const Message* const message) {
 	if (message->id == Message::ID::ADSBConfigure) {
-		null_count = 0;
 		bit_count = 0;
 		sample_count = 0;
 		decoding = false;
@@ -148,8 +158,10 @@ void ADSBRXProcessor::on_message(const Message* const message) {
 	}
 }
 
+#ifndef _WIN32
 int main() {
 	EventDispatcher event_dispatcher { std::make_unique<ADSBRXProcessor>() };
 	event_dispatcher.run();
 	return 0;
 }
+#endif

firmware/baseband/proc_adsbrx.hpp

@@ -40,8 +40,6 @@ public:
 	void on_message(const Message* const message) override;
 
 private:
-	static constexpr float k = 1.0f / 128.0f;
-	
 	static constexpr size_t baseband_fs = 2000000;
 	
 	BasebandThread baseband_thread { baseband_fs, this, NORMALPRIO + 20, baseband::Direction::Receive };
@@ -49,16 +47,17 @@ private:
 	
 	ADSBFrame frame { };
 	bool configured { false };
-	float prev_mag { 0 };
-	float threshold { }, threshold_low { }, threshold_high { };
-	size_t null_count { 0 }, bit_count { 0 }, sample_count { 0 };
-	std::pair<float, uint8_t> shifter[ADSB_PREAMBLE_LENGTH];
+	uint32_t prev_mag { 0 };
+	size_t bit_count { 0 }, sample_count { 0 };
+	size_t msgLen{ 112 };
+	uint32_t shifter[ADSB_PREAMBLE_LENGTH+1];
 	bool decoding { };
 	bool preamble { }, active { };
     uint16_t bit_pos { 0 };
     uint8_t cur_bit { 0 };
 	uint32_t sample { 0 };
-	int8_t re { }, im { };
+	int32_t re { }, im { };
+	int32_t amp {0};
 };
 
 #endif

firmware/baseband/proc_aprsrx.cpp

@@ -141,12 +141,11 @@ bool APRSRxProcessor::parse_bit(const uint8_t current_bit){
 	uint8_t decoded_bit = ~(current_bit ^ last_bit) & 0x1;
 	last_bit = current_bit;
 
-	int16_t log = decoded_bit == 0 ? -32768 : 32767;
-				
-	//if( stream ) {
-	//	const size_t bytes_to_write = sizeof(log) * 1;
-//		const auto result = stream->write(&log, bytes_to_write);
-//	}
+    //int16_t log = decoded_bit == 0 ? -32768 : 32767;
+    //if(stream){
+    //    const size_t bytes_to_write = sizeof(log) * 1;
+    //    const auto result = stream->write(&log, bytes_to_write);
+    //}
 
 	if(decoded_bit & 0x1){
 		if(ones_count < 8){

firmware/baseband/proc_pocsag.cpp

@@ -28,6 +28,9 @@
 
 #include <cstdint>
 #include <cstddef>
+#include <algorithm>    // std::max
+#include <cmath>
+
 
 void POCSAGProcessor::execute(const buffer_c8_t& buffer) {
 	// This is called at 1500Hz
@@ -39,114 +42,45 @@ void POCSAGProcessor::execute(const buffer_c8_t& buffer) {
 	const auto decim_1_out = decim_1.execute(decim_0_out, dst_buffer);
 	const auto channel_out = channel_filter.execute(decim_1_out, dst_buffer);
 	auto audio = demod.execute(channel_out, audio_buffer);
-	//audio_output.write(audio);
+	smooth.Process(audio.p, audio.count); // Smooth the data to  make decoding more accurate
+	audio_output.write(audio);
 	
-	for (uint32_t c = 0; c < 16; c++) {
-		
-		const int32_t sample_int = audio.p[c] * 32768.0f;
-		const int32_t audio_sample = __SSAT(sample_int, 16);
-		
-		slicer_sr <<= 1;
-		if (phase == 0)
-			slicer_sr |= (audio_sample < 0);		// Do we need hysteresis ?
-		else
-			slicer_sr |= !(audio_sample < 0);
-			
-		// Detect transitions to adjust clock
-		if ((slicer_sr ^ (slicer_sr >> 1)) & 1) {
-			if (sphase < (0x8000u - sphase_delta_half))
-				sphase += sphase_delta_eighth;
-			else
-				sphase -= sphase_delta_eighth;
-		}
-		
-		sphase += sphase_delta;
-		
-		// Symbol time elapsed
-		if (sphase >= 0x10000u) {
-			sphase &= 0xFFFFu;
-			
-			rx_data <<= 1;
-			rx_data |= (slicer_sr & 1);
-			
-			switch (rx_state) {
-				
-				case WAITING:
-					if (rx_data == 0xAAAAAAAA) {
-						rx_state = PREAMBLE;
-						sync_timeout = 0;
-					}
-					break;
-				
-				case PREAMBLE:
-					if (sync_timeout < POCSAG_TIMEOUT) {
-						sync_timeout++;
+	processDemodulatedSamples(audio.p, 16);
+	extractFrames();
 
-						if (rx_data == POCSAG_SYNCWORD) {
-							packet.clear();
-							codeword_count = 0;
-							rx_bit = 0;
-							msg_timeout = 0;
-							rx_state = SYNC;
-						}
-						
-					} else {
-						// Timeout here is normal (end of message)
-						rx_state = WAITING;
-						//push_packet(pocsag::PacketFlag::TIMED_OUT);
-					}
-					break;
-				
-				case SYNC:
-					if (msg_timeout < POCSAG_BATCH_LENGTH) {
-						msg_timeout++;
-						rx_bit++;
-						
-						if (rx_bit >= 32) {
-							rx_bit = 0;
-							
-							// Got a complete codeword
-							
-							//pocsag_brute_repair(&s->l2.pocsag, &rx_data);
-							
-							packet.set(codeword_count, rx_data);
-							
-							if (codeword_count < 15) {
-								codeword_count++;
-							} else {
-								push_packet(pocsag::PacketFlag::NORMAL);
-								rx_state = PREAMBLE;
-								sync_timeout = 0;
-							}
-						}
-					} else {
-						packet.set(0, codeword_count);	// Replace first codeword with count, for debug
-						push_packet(pocsag::PacketFlag::TIMED_OUT);
-						rx_state = WAITING;
-					}
-					break;
-
-				default:
-					break;
-			}
-		}
-	}
 }
 
-void POCSAGProcessor::push_packet(pocsag::PacketFlag flag) {
-	packet.set_bitrate(bitrate);
-	packet.set_flag(flag);
-	packet.set_timestamp(Timestamp::now());
-	const POCSAGPacketMessage message(packet);
-	shared_memory.application_queue.push(message);
+// ====================================================================
+//
+// ====================================================================
+int POCSAGProcessor::OnDataWord(uint32_t word, int pos)
+{
+	packet.set(pos, word);
+	return 0;
+}
+
+// ====================================================================
+//
+// ====================================================================
+int POCSAGProcessor::OnDataFrame(int len, int baud)
+{
+	if (len > 0)
+	{
+		packet.set_bitrate(baud);
+		packet.set_flag(pocsag::PacketFlag::NORMAL);
+		packet.set_timestamp(Timestamp::now());
+		const POCSAGPacketMessage message(packet);
+		shared_memory.application_queue.push(message);
+	}
+	return 0;
 }
 
 void POCSAGProcessor::on_message(const Message* const message) {
 	if (message->id == Message::ID::POCSAGConfigure)
-		configure(*reinterpret_cast<const POCSAGConfigureMessage*>(message));
+		configure();
 }
 
-void POCSAGProcessor::configure(const POCSAGConfigureMessage& message) {
+void POCSAGProcessor::configure() {
 	constexpr size_t decim_0_input_fs = baseband_fs;
 	constexpr size_t decim_0_output_fs = decim_0_input_fs / decim_0.decimation_factor;
 
@@ -162,18 +96,442 @@ void POCSAGProcessor::configure(const POCSAGConfigureMessage& message) {
 	decim_1.configure(taps_11k0_decim_1.taps, 131072);
 	channel_filter.configure(taps_11k0_channel.taps, 2);
 	demod.configure(demod_input_fs, 4500);
-	//audio_output.configure(false);
+	// Smoothing should be roughly sample rate over max baud
+	// 24k / 3.2k is 7.5
+	smooth.SetSize(8);
+	audio_output.configure(false);
 
-	bitrate = message.bitrate;
-	phase = message.phase;
-	sphase_delta = 0x10000u * bitrate / POCSAG_AUDIO_RATE;
-	sphase_delta_half = sphase_delta / 2;			// Just for speed
-	sphase_delta_eighth = sphase_delta / 8;
-	
-	rx_state = WAITING;
+	// Set up the frame extraction, limits of baud
+	setFrameExtractParams(demod_input_fs, 4000, 300, 32);
+
+	// Mark the class as ready to accept data
 	configured = true;
 }
 
+
+
+// -----------------------------
+// Frame extractraction methods
+// -----------------------------
+#define BAUD_STABLE (104)
+#define MAX_CONSEC_SAME (32)
+#define MAX_WITHOUT_SINGLE (64)
+#define MAX_BAD_TRANS (10)
+
+#define M_SYNC				(0x7cd215d8)
+#define M_NOTSYNC			(0x832dea27)
+
+#define M_IDLE				(0x7a89c197)
+
+// ====================================================================
+//
+// ====================================================================
+inline int bitsDiff(unsigned long left, unsigned long right)
+{
+	unsigned long xord = left ^ right;
+	int count = 0;
+	for (int i = 0; i < 32; i++)
+	{
+		if ((xord & 0x01) != 0) ++count;
+		xord = xord >> 1;
+	}
+	return(count);
+
+}
+
+
+// ====================================================================
+//
+// ====================================================================
+void POCSAGProcessor::initFrameExtraction()
+{
+	m_averageSymbolLen_1024 = m_maxSymSamples_1024;
+	m_lastStableSymbolLen_1024 = m_minSymSamples_1024;
+
+	m_badTransitions = 0;
+	m_bitsStart = 0;
+	m_bitsEnd = 0;
+	m_inverted = false;
+
+	resetVals();
+}
+
+// ====================================================================
+//
+// ====================================================================
+void POCSAGProcessor::resetVals()
+{
+	// Reset the parameters
+	// --------------------
+	m_goodTransitions = 0;
+	m_badTransitions = 0;
+	m_averageSymbolLen_1024 = m_maxSymSamples_1024;
+	m_shortestGoodTrans_1024 = m_maxSymSamples_1024;
+	m_valMid = 0;
+
+	// And reset the counts
+	// --------------------
+	m_lastTransPos_1024 = 0;
+	m_lastBitPos_1024 = 0;
+	m_lastSample = 0;
+	m_sampleNo = 0;
+	m_nextBitPos_1024 = m_maxSymSamples_1024;
+	m_nextBitPosInt = (long)m_nextBitPos_1024;
+
+	// Extraction
+	m_fifo.numBits = 0;
+	m_gotSync = false;
+	m_numCode = 0;
+}
+
+// ====================================================================
+//
+// ====================================================================
+void POCSAGProcessor::setFrameExtractParams(long a_samplesPerSec, long a_maxBaud, long a_minBaud, long maxRunOfSameValue)
+{
+	m_samplesPerSec = a_samplesPerSec;
+	m_minSymSamples_1024 = (uint32_t)(1024.0f * (float)a_samplesPerSec / (float)a_maxBaud);
+	m_maxSymSamples_1024 = (uint32_t)(1024.0f*(float)a_samplesPerSec / (float)a_minBaud);
+	m_maxRunOfSameValue = maxRunOfSameValue;
+
+	m_shortestGoodTrans_1024 = m_maxSymSamples_1024;
+	m_averageSymbolLen_1024 = m_maxSymSamples_1024;
+	m_lastStableSymbolLen_1024 = m_minSymSamples_1024;
+
+	m_nextBitPos_1024 = m_averageSymbolLen_1024 / 2;
+	m_nextBitPosInt = m_nextBitPos_1024 >> 10;
+
+	initFrameExtraction();
+}
+
+// ====================================================================
+//
+// ====================================================================
+int POCSAGProcessor::processDemodulatedSamples(float * sampleBuff, int noOfSamples)
+{
+	bool transition = false;
+	uint32_t samplePos_1024 = 0;
+	uint32_t len_1024 = 0;
+
+	// Loop through the block of data
+	// ------------------------------
+	for (int pos = 0; pos < noOfSamples; ++pos)
+	{
+		m_sample = sampleBuff[pos];
+		m_valMid += (m_sample - m_valMid) / 1024.0f;
+
+		++m_sampleNo;
+
+		// Detect Transition
+		// -----------------
+		transition = ! ((m_lastSample < m_valMid) ^ (m_sample >= m_valMid)); // use XOR for speed
+
+		// If this is a transition
+		// -----------------------
+		if (transition)
+		{
+			// Calculate samples since last trans
+			// ----------------------------------
+			int32_t fractional_1024 = (int32_t)(((m_sample - m_valMid)*1024) / (m_sample - m_lastSample));
+			if (fractional_1024 < 0) { fractional_1024 = -fractional_1024; }
+
+			samplePos_1024 = (m_sampleNo<<10)-fractional_1024;
+			len_1024 = samplePos_1024 - m_lastTransPos_1024;
+			m_lastTransPos_1024 = samplePos_1024;
+
+			// If symbol is large enough to be valid
+			// -------------------------------------
+			if (len_1024 > m_minSymSamples_1024)
+			{
+				// Check for shortest good transition
+				// ----------------------------------
+				if ((len_1024 < m_shortestGoodTrans_1024) &&
+					(m_goodTransitions < BAUD_STABLE))	// detect change of symbol size
+				{
+					int32_t fractionOfShortest_1024 = (len_1024<<10) / m_shortestGoodTrans_1024;
+
+					// If currently at half the baud rate
+					// ----------------------------------
+					if ((fractionOfShortest_1024 > 410) && (fractionOfShortest_1024 < 614)) // 0.4 and 0.6
+					{
+						m_averageSymbolLen_1024 /= 2;
+						m_shortestGoodTrans_1024 = len_1024;
+					}
+					// If currently at the wrong baud rate
+					// -----------------------------------
+					else if (fractionOfShortest_1024 < 768) // 0.75
+					{
+						m_averageSymbolLen_1024 = len_1024;
+						m_shortestGoodTrans_1024 = len_1024;
+						m_goodTransitions = 0;
+						m_lastSingleBitPos_1024 = samplePos_1024 - len_1024;
+					}
+				}
+
+				// Calc the number of bits since events
+				// ------------------------------------
+				int32_t halfSymbol_1024 = m_averageSymbolLen_1024 / 2;
+				int bitsSinceLastTrans = max((uint32_t)1, (len_1024+halfSymbol_1024) / m_averageSymbolLen_1024 );
+				int bitsSinceLastSingle = (((m_sampleNo<<10)-m_lastSingleBitPos_1024) + halfSymbol_1024) / m_averageSymbolLen_1024;
+
+				// Check for single bit
+				// --------------------
+				if (bitsSinceLastTrans == 1)
+				{
+					m_lastSingleBitPos_1024 = samplePos_1024;
+				}
+
+				// If too long since last transition
+				// ---------------------------------
+				if (bitsSinceLastTrans > MAX_CONSEC_SAME)
+				{
+					resetVals();
+				}
+				// If too long sice last single bit
+				// --------------------------------
+				else if (bitsSinceLastSingle > MAX_WITHOUT_SINGLE)
+				{
+					resetVals();
+				}
+				else
+				{
+					// If this is a good transition
+					// ----------------------------
+					int32_t offsetFromExtectedTransition_1024 = len_1024 - (bitsSinceLastTrans*m_averageSymbolLen_1024);
+					if (offsetFromExtectedTransition_1024 < 0) { offsetFromExtectedTransition_1024 = -offsetFromExtectedTransition_1024; }
+					if (offsetFromExtectedTransition_1024 < ((int32_t)m_averageSymbolLen_1024 / 4)) // Has to be within 1/4 of symbol to be good
+					{
+						++m_goodTransitions;
+						uint32_t bitsCount = min((uint32_t)BAUD_STABLE, m_goodTransitions);
+
+						uint32_t propFromPrevious = m_averageSymbolLen_1024*bitsCount;
+						uint32_t propFromCurrent = (len_1024 / bitsSinceLastTrans);
+						m_averageSymbolLen_1024 = (propFromPrevious + propFromCurrent) / (bitsCount + 1);
+						m_badTransitions = 0;
+						//if ( len < m_shortestGoodTrans ){m_shortestGoodTrans = len;}
+						// Store the old symbol size
+						if (m_goodTransitions >= BAUD_STABLE) 
+						{ 
+							m_lastStableSymbolLen_1024 = m_averageSymbolLen_1024; 
+						}
+					}
+				}
+
+				// Set the point of the last bit if not yet stable
+				// -----------------------------------------------
+				if ((m_goodTransitions < BAUD_STABLE) || (m_badTransitions > 0))
+				{
+					m_lastBitPos_1024 = samplePos_1024 - (m_averageSymbolLen_1024 / 2);
+				}
+
+				// Calculate the exact positiom of the next bit
+				// --------------------------------------------
+				int32_t thisPlusHalfsymbol_1024 = samplePos_1024 + (m_averageSymbolLen_1024/2);
+				int32_t lastPlusSymbol = m_lastBitPos_1024 + m_averageSymbolLen_1024;
+				m_nextBitPos_1024 = lastPlusSymbol + ((thisPlusHalfsymbol_1024 - lastPlusSymbol) / 16);
+
+				// Check for bad pos error
+				// -----------------------
+				if (m_nextBitPos_1024 < samplePos_1024) m_nextBitPos_1024 += m_averageSymbolLen_1024;
+
+				// Calculate integer sample after next bit
+				// ---------------------------------------
+				m_nextBitPosInt = (m_nextBitPos_1024>>10) + 1;
+
+			} // symbol is large enough to be valid
+			else
+			{
+				// Bad transition, so reset the counts
+				// -----------------------------------
+				++m_badTransitions;
+				if (m_badTransitions > MAX_BAD_TRANS)
+				{
+					resetVals();
+				}
+			}
+		}  // end of if transition
+
+		// Reached the point of the next bit
+		// ---------------------------------
+		if (m_sampleNo >= m_nextBitPosInt)
+		{
+			// Everything is good so extract a bit
+			// -----------------------------------
+			if (m_goodTransitions > 20)
+			{
+				// Store value at the center of bit
+				// --------------------------------
+				storeBit();
+			}
+			// Check for long 1 or zero
+			// ------------------------
+			uint32_t bitsSinceLastTrans = ((m_sampleNo<<10) - m_lastTransPos_1024) / m_averageSymbolLen_1024;
+			if (bitsSinceLastTrans > m_maxRunOfSameValue) 
+			{ 
+				resetVals(); 
+			}
+
+			// Store the point of the last bit
+			// -------------------------------
+			m_lastBitPos_1024 = m_nextBitPos_1024;
+
+			// Calculate the exact point of the next bit
+			// -----------------------------------------
+			m_nextBitPos_1024 += m_averageSymbolLen_1024;
+
+			// Look for the bit after the next bit pos
+			// ---------------------------------------
+			m_nextBitPosInt = (m_nextBitPos_1024>>10) + 1;
+
+		} // Reached the point of the next bit
+
+		m_lastSample = m_sample;
+
+	} // Loop through the block of data
+
+	return getNoOfBits();
+}
+
+// ====================================================================
+//
+// ====================================================================
+void POCSAGProcessor::storeBit()
+{
+	if (++m_bitsStart >= BIT_BUF_SIZE) { m_bitsStart = 0; }
+
+	// Calculate the bit value
+	float sample = (m_sample + m_lastSample) / 2;
+	//int32_t sample_1024 = m_sample_1024;
+	bool bit = sample > m_valMid;
+
+	// If buffer not full
+	if (m_bitsStart != m_bitsEnd)
+	{
+		// Decide on output val
+		if (bit)
+		{
+			m_bits[m_bitsStart] = 0;
+		}
+		else
+		{
+			m_bits[m_bitsStart] = 1;
+		}
+	}
+	// Throw away bits if the buffer is full
+	else
+	{
+		if (--m_bitsStart <= -1) 
+		{ 
+			m_bitsStart = BIT_BUF_SIZE - 1; 
+		}
+	}
+}
+
+// ====================================================================
+//
+// ====================================================================
+int POCSAGProcessor::extractFrames()
+{
+	int msgCnt = 0;
+	// While there is unread data in the bits buffer
+	//----------------------------------------------
+	while (getNoOfBits() > 0)
+	{
+		m_fifo.codeword = (m_fifo.codeword << 1) + getBit();
+		m_fifo.numBits++;
+
+		// If number of bits in fifo equals 32
+		//------------------------------------
+		if (m_fifo.numBits >= 32)
+		{
+			// Not got sync
+			// ------------
+			if (!m_gotSync)
+			{
+				if (bitsDiff(m_fifo.codeword, M_SYNC) <= 2)
+				{
+					m_inverted = false;
+					m_gotSync = true;
+					m_numCode = -1;
+					m_fifo.numBits = 0;
+				}
+				else if (bitsDiff(m_fifo.codeword, M_NOTSYNC) <= 2)
+				{
+					m_inverted = true;
+					m_gotSync = true;
+					m_numCode = -1;
+					m_fifo.numBits = 0;
+				}
+				else
+				{
+					// Cause it to load one more bit
+					m_fifo.numBits = 31;
+				}
+			} // Not got sync
+			else
+			{
+				// Increment the word count
+				// ------------------------
+				++m_numCode; // It got set to -1 when a sync was found, now count the 16 words
+				uint32_t val = m_inverted ? ~m_fifo.codeword : m_fifo.codeword;
+				OnDataWord(val, m_numCode);
+
+				// If at the end of a 16 word block
+				// --------------------------------
+				if (m_numCode >= 15)
+				{
+					msgCnt += OnDataFrame(m_numCode+1, (m_samplesPerSec<<10) / m_lastStableSymbolLen_1024);
+					m_gotSync = false;
+					m_numCode = -1;
+				}
+				m_fifo.numBits = 0;
+			}
+		} // If number of bits in fifo equals 32
+	} // While there is unread data in the bits buffer
+	return msgCnt;
+} // extractFrames
+
+// ====================================================================
+//
+// ====================================================================
+short POCSAGProcessor::getBit()
+{
+	if (m_bitsEnd != m_bitsStart)
+	{
+		if (++m_bitsEnd >= BIT_BUF_SIZE) 
+		{ 
+			m_bitsEnd = 0; 
+		}
+		return m_bits[m_bitsEnd];
+	}
+	else
+	{
+		return -1;
+	}
+}
+
+// ====================================================================
+//
+// ====================================================================
+int POCSAGProcessor::getNoOfBits()
+{
+	int bits = m_bitsEnd - m_bitsStart;
+	if (bits < 0) { bits += BIT_BUF_SIZE; }
+	return bits;
+}
+
+// ====================================================================
+//
+// ====================================================================
+uint32_t POCSAGProcessor::getRate()
+{
+	return ((m_samplesPerSec<<10)+512) / m_lastStableSymbolLen_1024;
+}
+
+
+// ====================================================================
+//
+// ====================================================================
 int main() {
 	EventDispatcher event_dispatcher { std::make_unique<POCSAGProcessor>() };
 	event_dispatcher.run();

firmware/baseband/proc_pocsag.hpp

@@ -40,25 +40,100 @@
 #include "portapack_shared_memory.hpp"
 
 #include <cstdint>
+#include <bitset> 
+using namespace std;
+
+// Class used to smooth demodulated waveform prior to decoding
+// -----------------------------------------------------------
+template <class ValType, class CalcType>
+class SmoothVals
+{
+protected:
+	ValType *	m_lastVals;	// Previoius N values
+	int			m_size;		// The size N
+	CalcType	m_sumVal;	// Running sum of lastVals
+	int			m_pos;		// Current position in last vals ring buffer
+	int			m_count;    //
 
-class POCSAGProcessor : public BasebandProcessor {
 public:
+	SmoothVals() : m_lastVals(NULL), m_size(1), m_sumVal(0), m_pos(0), m_count(0)
+	{
+		m_lastVals = new ValType[m_size];
+	}
+
+	// --------------------------------------------------
+	// --------------------------------------------------
+	virtual ~SmoothVals()
+	{
+		delete[] m_lastVals;
+	}
+
+	// --------------------------------------------------
+	// Set size of smoothing
+	// --------------------------------------------------
+	void SetSize(int size)
+	{
+		m_size = std::max(size, 1);
+		m_pos = 0;
+		delete[] m_lastVals;
+		m_lastVals = new ValType[m_size];
+		m_sumVal = 0;
+	}
+
+	// --------------------------------------------------
+	// Get size of smoothing
+	// --------------------------------------------------
+	int Size() { return m_size; }
+
+	// --------------------------------------------------
+	// In place processing
+	// --------------------------------------------------
+	void Process(ValType * valBuff, int numVals)
+	{
+		ValType tmpVal;
+
+		if (m_count > (1024*10))
+		{
+			// Recalculate the sum value occasionaly, stops accumulated errors when using float
+			m_count = 0;
+			m_sumVal = 0;
+			for (int i = 0; i < m_size; ++i) { m_sumVal += (CalcType)m_lastVals[i]; }
+		}
+
+		// Use a rolling smoothed value while processing the buffer
+		for (int buffPos = 0; buffPos < numVals; ++buffPos)
+		{
+			m_pos = (m_pos + 1);								// Increment the position in the stored values
+			if (m_pos >= m_size) { m_pos = 0; }					// loop if reached the end of the stored values 
+
+			m_sumVal -= (CalcType)m_lastVals[m_pos];			// Subtract the oldest value
+			m_lastVals[m_pos] = valBuff[buffPos];				// Store the new value
+			m_sumVal += (CalcType)m_lastVals[m_pos];			// Add on the new value
+
+			tmpVal = (ValType)(m_sumVal / m_size);			    // Scale by number of values smoothed
+			valBuff[buffPos] = tmpVal;
+		}
+
+		m_count += numVals;
+	}
+};
+
+
+
+// --------------------------------------------------
+// Class to process base band data to pocsag frames
+// --------------------------------------------------
+class POCSAGProcessor : public BasebandProcessor{
+public:
+
 	void execute(const buffer_c8_t& buffer) override;
 	
 	void on_message(const Message* const message) override;
 
-private:
-	enum rx_states {
-		WAITING = 0,
-		PREAMBLE = 32,
-		SYNC = 64,
-		//LOSING_SYNC = 65,
-		//LOST_SYNC = 66,
-		//ADDRESS = 67,
-		//MESSAGE = 68,
-		//END_OF_MESSAGE = 69
-	};
+	int OnDataFrame(int len, int baud);
+	int OnDataWord(uint32_t word, int pos);
 
+private:
 	static constexpr size_t baseband_fs = 3072000;
 
 	BasebandThread baseband_thread { baseband_fs, this, NORMALPRIO + 20, baseband::Direction::Receive };
@@ -79,28 +154,71 @@ private:
 	dsp::decimate::FIRC16xR16x32Decim8 decim_1 { };
 	dsp::decimate::FIRAndDecimateComplex channel_filter { };
 	dsp::demodulate::FM demod { };
+	SmoothVals<float, float> smooth;
 	
-	//AudioOutput audio_output { };
+	AudioOutput audio_output { };
 
-	uint32_t sync_timeout { 0 };
-	uint32_t msg_timeout { 0 };
-
-	uint32_t slicer_sr { 0 };
-	uint32_t sphase { 0 };
-	uint32_t sphase_delta { 0 };
-	uint32_t sphase_delta_half { 0 };
-	uint32_t sphase_delta_eighth { 0 };
-	uint32_t rx_data { 0 };
-	uint32_t rx_bit { 0 };
 	bool configured = false;
-	rx_states rx_state { WAITING };
-	pocsag::BitRate bitrate { pocsag::BitRate::FSK1200 };
-	bool phase = false ;
-	uint32_t codeword_count { 0 };
 	pocsag::POCSAGPacket packet { };
-	
-	void push_packet(pocsag::PacketFlag flag);
-	void configure(const POCSAGConfigureMessage& message);
+
+	void configure();
+
+	// ----------------------------------------
+	// Frame extractraction methods and members
+	// ----------------------------------------
+private:
+	void initFrameExtraction();
+	struct FIFOStruct {
+		unsigned long	codeword;
+		int				numBits;
+	};
+
+	#define BIT_BUF_SIZE (64)
+
+	void resetVals();
+	void setFrameExtractParams(long a_samplesPerSec, long a_maxBaud = 8000, long a_minBaud = 200, long maxRunOfSameValue = 32);
+
+	int	 processDemodulatedSamples(float * sampleBuff, int noOfSamples);
+	int  extractFrames();
+
+	void	storeBit();
+	short	getBit();
+
+	int		getNoOfBits();
+	uint32_t getRate();
+
+	uint32_t	m_averageSymbolLen_1024{0};
+	uint32_t	m_lastStableSymbolLen_1024{0};
+
+	uint32_t m_samplesPerSec{0};
+	uint32_t m_goodTransitions{0};
+	uint32_t m_badTransitions{0};
+
+	uint32_t m_sampleNo{0};
+	float  m_sample{0};
+	float  m_valMid{0.0f};
+	float  m_lastSample{0.0f};
+
+	uint32_t  m_lastTransPos_1024{0};
+	uint32_t  m_lastSingleBitPos_1024{0};
+
+	uint32_t m_nextBitPosInt{0}; // Integer rounded up version to save on ops
+	uint32_t m_nextBitPos_1024{0};
+	uint32_t m_lastBitPos_1024{0};
+
+	uint32_t m_shortestGoodTrans_1024{0};
+	uint32_t m_minSymSamples_1024{0};
+	uint32_t m_maxSymSamples_1024{0};
+	uint32_t m_maxRunOfSameValue{0};
+
+	bitset<(size_t)BIT_BUF_SIZE> m_bits{0};
+	long		m_bitsStart{0};
+	long		m_bitsEnd{0};
+
+	FIFOStruct		m_fifo{0,0};
+	bool			m_gotSync{false};
+	int				m_numCode{0};
+	bool			m_inverted{false};
 	
 };
 

firmware/baseband/proc_sonde.cpp

@@ -26,9 +26,16 @@
 
 #include "event_m4.hpp"
 
+#include "audio_output.hpp"
+
 SondeProcessor::SondeProcessor() {
+
 	decim_0.configure(taps_11k0_decim_0.taps, 33554432);
 	decim_1.configure(taps_11k0_decim_1.taps, 131072);
+
+	audio_output.configure(false);
+
+	tone_gen.configure(BEEP_BASE_FREQ, 1.0, ToneGen::tone_type::sine, AUDIO_SAMPLE_RATE);
 }
 
 void SondeProcessor::execute(const buffer_c8_t& buffer) {
@@ -47,10 +54,97 @@ void SondeProcessor::execute(const buffer_c8_t& buffer) {
 			clock_recovery_fsk_4800(mf.get_output());
 		}
 	}
+
+	if(pitch_rssi_enabled) {
+		if(beep_play) {
+			// if we let the buffer underrun, for some reason
+			// once it starts looping it ignores zero (silence)
+			// samples, so we need to keep feeding the buffer
+			// and not be able to take advantage of the circular
+			// buffer loop:
+			//beep_play = false;
+			generate_beep();
+		}
+		
+		if(silence_play) {
+			//silence_play = false;
+			generate_silence();
+		}
+	}
+}
+
+void SondeProcessor::on_message(const Message* const msg) {
+	switch(msg->id) {		
+		case Message::ID::RequestSignal:
+			if ((*reinterpret_cast<const RequestSignalMessage*>(msg)).signal == RequestSignalMessage::Signal::BeepRequest) {
+				float rssi_ratio = (float) last_rssi / (float) RSSI_CEILING;
+				int beep_duration = 0;
+
+				if(rssi_ratio <= PROPORTIONAL_BEEP_THRES) {
+					beep_duration = BEEP_MIN_DURATION;
+				}
+				else if(rssi_ratio < 1) {
+					beep_duration =  (int) rssi_ratio * BEEP_DURATION_RANGE + BEEP_MIN_DURATION;
+				}
+				else {
+					beep_duration =  BEEP_DURATION_RANGE + BEEP_MIN_DURATION;
+				}
+				
+				play_beep();
+				chThdSleepMilliseconds(beep_duration);
+				stop_beep();
+			}		
+			break;
+
+		case Message::ID::PitchRSSIConfigure:
+			pitch_rssi_config(*reinterpret_cast<const PitchRSSIConfigureMessage*>(msg));
+			break;
+
+		default:
+			break;
+	}
+}
+
+void SondeProcessor::play_beep() {
+	beep_play = true;
+	silence_play = false;
+}
+
+void SondeProcessor::stop_beep() {
+	beep_play = false;
+	silence_play = true;
+}
+
+void SondeProcessor::generate_beep() {
+	// here we let the samples be created using the ToneGen class:
+
+	for(uint8_t i = 0; i < sizeof(audio_buffer.p); i++) {
+		audio_buffer.p[i] = (int16_t) ((tone_gen.process(0) >> 16) & 0x0000FFFF);
+	}
+
+	audio_output.write(audio_buffer);
+}
+
+void SondeProcessor::generate_silence() {
+	for(uint8_t i = 0; i < sizeof(audio_buffer.p); i++) {
+		audio_buffer.p[i] = 0;
+	}
+
+	audio_output.write(audio_buffer);
+}
+
+void SondeProcessor::pitch_rssi_config(const PitchRSSIConfigureMessage& message) {
+	pitch_rssi_enabled = message.enabled;
+
+	uint32_t freq = (int) ((float) message.rssi * (float) RSSI_PITCH_WEIGHT + (float) BEEP_BASE_FREQ);
+
+	last_rssi = message.rssi;
+	tone_gen.configure(freq, 1.0, ToneGen::tone_type::sine, AUDIO_SAMPLE_RATE);
 }
 
 int main() {
 	EventDispatcher event_dispatcher { std::make_unique<SondeProcessor>() };
 	event_dispatcher.run();
+
 	return 0;
 }

firmware/baseband/proc_sonde.hpp

@@ -88,19 +88,51 @@
 #include "message.hpp"
 #include "portapack_shared_memory.hpp"
 
+#include "audio_output.hpp"
+#include "tone_gen.hpp"
+
+#include "buffer.hpp"
+
 #include <cstdint>
 #include <cstddef>
 #include <bitset>
 
+
+#define BEEP_MIN_DURATION 			60
+#define BEEP_DURATION_RANGE 		100
+#define BEEP_BASE_FREQ				200
+#define RSSI_CEILING	 			1000
+#define PROPORTIONAL_BEEP_THRES		0.8
+#define RSSI_PITCH_WEIGHT			0.5
+#define AUDIO_SAMPLE_RATE			24000
+
 class SondeProcessor : public BasebandProcessor {
 public:
 	SondeProcessor();
 	
 	void execute(const buffer_c8_t& buffer) override;
-
+	void on_message(const Message* const msg);
 private:
+
 	static constexpr size_t baseband_fs = 2457600;
-	
+
+	std::array<int16_t, 32> audio { };
+
+	const buffer_s16_t audio_buffer {
+		(int16_t*) audio.data(),
+		sizeof(audio) / sizeof(int16_t)
+	};
+
+	AudioOutput audio_output { };
+
+	bool beep_play { false };
+	bool silence_play { false };
+	bool pitch_rssi_enabled { false };
+
+	uint32_t last_rssi { 0 };
+
+	ToneGen tone_gen { };
+
 	BasebandThread baseband_thread { baseband_fs, this, NORMALPRIO + 20, baseband::Direction::Receive };
 	RSSIThread rssi_thread { NORMALPRIO + 10 };
 
@@ -149,6 +181,23 @@ private:
 			shared_memory.application_queue.push(message);
 		}
 	};
+
+	void play_beep();
+	void stop_beep();
+	
+	/**
+	 * Used for filling the audio buffer with the waveform
+	 * generated by the ToneGen class:
+	 * 
+	 */
+	void generate_beep();
+
+	/**
+	 * Used for filling the audio buffer with silence:
+	 */
+	void generate_silence();
+	
+	void pitch_rssi_config(const PitchRSSIConfigureMessage& message);
 };
 
 #endif/*__PROC_ERT_H__*/

firmware/baseband/spectrum_collector.cpp

@@ -27,8 +27,6 @@
 #include "event_m4.hpp"
 #include "portapack_shared_memory.hpp"
 
-#include "event_m4.hpp"
-
 #include <algorithm>
 
 void SpectrumCollector::on_message(const Message* const message) {
@@ -105,24 +103,38 @@ void SpectrumCollector::post_message(const buffer_c16_t& data) {
 	}
 }
 
-template<typename T>
+/* 3 types of Windowing time domain shapes declaration , but only used Hamming  ,  shapes for  FFT  
+    GCC10 compile sintax error c/m  (1/2), 
+          The primary diff. between const and constexpr variables is that 
+          the initialization of a const var can be deferred until run time. 
+	      A constexpr var. must be initialized at compile time. ... 
+	      A var. can be declared with constexpr , when it has a literal type and is initialized.
+	 GCC compile sintax error c/m (2/2)
+ 	      Static assert --> Tests a software assertion at compile time for debugging.
+		  we keep the same safety  compile protection , just changing slightly the sintax  checking that the size of the called array is power of 2.
+	      if the bool  "constant expression" is TRUE (normal case) , the declaration has no effect.
+		  if the bool  "constant expression" is FALSE (abnormal array size) , it is aborted the compile with a msg error. 
+		  	  */ 
+
+
+template<typename T> // Although currently we are not using that Windowing shape, we apply the same GCC10 compile error c/m 
 static typename T::value_type spectrum_window_none(const T& s, const size_t i) {
-	static_assert(power_of_two(s.size()), "Array size must be power of 2");
+static_assert(power_of_two(ARRAY_ELEMENTS(s)), "Array number of elements must be power of 2");   // c/m compile error GCC10 , OK for all GCC versions. 
 	return s[i];
 };
 
-template<typename T>
+template<typename T>   // Currently we are calling and using that Window shape.
 static typename T::value_type spectrum_window_hamming_3(const T& s, const size_t i) {
-	static_assert(power_of_two(s.size()), "Array size must be power of 2");
-	constexpr size_t mask = s.size() - 1;
+    static_assert(power_of_two(ARRAY_ELEMENTS(s)), "Array number of elements must be power of 2");   // c/m compile error GCC10 , OK for all GCC versions. 
+	const size_t mask = s.size() - 1;          // c/m compile error GCC10 , constexpr->const
 	// Three point Hamming window.
 	return s[i] * 0.54f + (s[(i-1) & mask] + s[(i+1) & mask]) * -0.23f;
 };
 
-template<typename T>
+template<typename T>   // Although currently we are not using that Windowing shape, we apply the same GCC10 compile error c/m  
 static typename T::value_type spectrum_window_blackman_3(const T& s, const size_t i) {
-	static_assert(power_of_two(s.size()), "Array size must be power of 2");
-	constexpr size_t mask = s.size() - 1;
+    static_assert(power_of_two(ARRAY_ELEMENTS(s)), "Array number of elements must be power of 2");   // c/m compile error GCC10 , OK for all GCC versions. 
+    const size_t mask = s.size() - 1;          // c/m compile error GCC10 , constexpr->const
 	// Three term Blackman window.
 	constexpr float alpha = 0.42f;
 	constexpr float beta = 0.5f * 0.5f;

firmware/baseband/spectrum_collector.hpp

@@ -22,6 +22,9 @@
 #ifndef __SPECTRUM_COLLECTOR_H__
 #define __SPECTRUM_COLLECTOR_H__
 
+#define ARRAY_ELEMENTS(x) (sizeof(x) / sizeof(x[0]))     
+/* sizeof() compile-time operator that returns #bytes of (data type). We used it to get #elements_array */
+
 #include "dsp_types.hpp"
 #include "complex.hpp"
 

firmware/baseband/tone_gen.cpp

@@ -23,18 +23,56 @@
 #include "tone_gen.hpp"
 #include "sine_table_int8.hpp"
 
+
+int32_t ToneGen::tone_sine() {
+	int32_t tone_sample = sine_table_i8[tone_phase_] * 0x1000000;
+	tone_phase_ += delta_;
+
+	return tone_sample;
+}
+
+int32_t ToneGen::tone_square() {
+	int32_t tone_sample = 0;
+
+	if(tone_phase_  < (UINT32_MAX / 2)) {
+		tone_sample = INT32_MAX;
+	}
+	else {
+		tone_sample = INT32_MIN;
+	}
+
+	tone_phase_ += delta_;
+
+	return tone_sample;
+}
+
 void ToneGen::configure(const uint32_t delta, const float tone_mix_weight) {
-	delta_ = delta;
+	delta_ = (uint8_t) ((delta & 0xFF000000U) >> 24);
 	tone_mix_weight_ = tone_mix_weight;
 	input_mix_weight_ = 1.0 - tone_mix_weight;
+
+	current_tone_type_ = sine;
+}
+
+void ToneGen::configure(const uint32_t freq, const float tone_mix_weight, const tone_type tone_type, const uint32_t sample_rate) {
+	delta_ = (uint8_t) ((freq * sizeof(sine_table_i8)) / sample_rate);
+	tone_mix_weight_ = tone_mix_weight;
+	input_mix_weight_ = 1.0 - tone_mix_weight;
+	current_tone_type_ = tone_type;
 }
 
 int32_t ToneGen::process(const int32_t sample_in) {
 	if (!delta_)
 		return sample_in;
 	
-	int32_t tone_sample = sine_table_i8[(tone_phase_ & 0xFF000000U) >> 24];
-	tone_phase_ += delta_;
+	int32_t tone_sample = 0;
+	
+	if(current_tone_type_ == sine) {
+		tone_sample = tone_sine();
+	}
+	else if(current_tone_type_ == square) {
+		tone_sample = tone_square();
+	}
 	
 	return (sample_in * input_mix_weight_) + (tone_sample * tone_mix_weight_);
 }

firmware/baseband/tone_gen.hpp

@@ -28,19 +28,36 @@
 
 class ToneGen {
 public:
+	enum tone_type { sine, square };
+
 	/*ToneGen(const size_t sample_rate
 	) : sample_rate_ { sample_rate }
 	{};*/
 
 	void configure(const uint32_t delta, const float tone_mix_weight);
+	void configure(const uint32_t freq, const float tone_mix_weight, const tone_type tone_type, const uint32_t sample_rate);
+
 	int32_t process(const int32_t sample_in);
 
 private:
-	//size_t sample_rate_;
+	tone_type current_tone_type_ { sine };
+
 	float input_mix_weight_ { 1 };
 	float tone_mix_weight_ { 0 };
-	uint32_t delta_ { 0 };
-	uint32_t tone_phase_ { 0 };
+
+	uint8_t delta_ { 0 };
+	uint8_t tone_phase_ { 0 };
+
+	/**
+	 * Generator function which selects every other sample from the reference sine waveform to the output sample:
+	 */
+	int32_t tone_sine();
+
+
+	/**
+	 * Generator function for square waves:
+	 */	
+	int32_t tone_square();
 };
 
-#endif
+#endif /* __TONE_GEN_H__ */

firmware/common/adsb.cpp

@@ -141,7 +141,11 @@ float cpr_mod(float a, float b) {
 	return a - (b * floor(a / b));
 }
 
-int cpr_NL(float lat) {
+int cpr_NL_precise(float lat) {
+	return (int) floor(2 * PI / acos(1 - ((1 - cos(PI / (2 * NZ))) / pow(cos(PI * lat / 180), 2))));
+}
+
+int cpr_NL_approx(float lat) {
 	if (lat < 0)
 		lat = -lat;		// Symmetry
 	
@@ -150,7 +154,19 @@ int cpr_NL(float lat) {
 			return 59 - c;
 	}
 	
-	return 1;
+	return 1;	
+}
+
+int cpr_NL(float lat) {
+	// TODO prove that the approximate function is good
+	// enough for the precision we need. Uncomment if
+	// that is true. No performance penalty was noticed
+	// from testing, but if you find it might be an issue,
+	// switch to cpr_NL_approx() instead:
+
+	//return cpr_NL_approx(lat);
+
+	return cpr_NL_precise(lat);
 }
 
 int cpr_N(float lat, int is_odd) {
@@ -185,18 +201,18 @@ void encode_frame_pos(ADSBFrame& frame, const uint32_t ICAO_address, const int32
 	// CPR encoding
 	// Info from: http://antena.fe.uni-lj.si/literatura/Razno/Avionika/modes/CPRencoding.pdf
 	
-	delta_lat = 360.0 / ((4.0 * 15.0) - time_parity);		// NZ = 15
-	yz = floor(131072.0 * (cpr_mod(latitude, delta_lat) / delta_lat) + 0.5);
-	rlat = delta_lat * ((yz / 131072.0) + floor(latitude / delta_lat));
+	delta_lat = 360.0 / ((4.0 * NZ) - time_parity);		// NZ = 15
+	yz = floor(CPR_MAX_VALUE * (cpr_mod(latitude, delta_lat) / delta_lat) + 0.5);
+	rlat = delta_lat * ((yz / CPR_MAX_VALUE) + floor(latitude / delta_lat));
 	
 	if ((cpr_NL(rlat) - time_parity) > 0)
 		delta_lon = 360.0 / cpr_N(rlat, time_parity);
 	else
 		delta_lon = 360.0;
-	xz = floor(131072.0 * (cpr_mod(longitude, delta_lon) / delta_lon) + 0.5);
+	xz = floor(CPR_MAX_VALUE * (cpr_mod(longitude, delta_lon) / delta_lon) + 0.5);
 	
-	lat = cpr_mod(yz, 131072.0);
-	lon = cpr_mod(xz, 131072.0);
+	lat = cpr_mod(yz, CPR_MAX_VALUE);
+	lon = cpr_mod(xz, CPR_MAX_VALUE);
 	
 	frame.push_byte((altitude_coded << 4) | ((uint32_t)time_parity << 2) | (lat >> 15));	// T = 0
 	frame.push_byte(lat >> 7);
@@ -258,7 +274,7 @@ adsb_pos decode_frame_pos(ADSBFrame& frame_even, ADSBFrame& frame_odd) {
 
 	// Compute longitude
 	if (time_even > time_odd) {
-		// Use even frame
+		// Use even frame2
 		ni = cpr_N(latE, 0);
 		Dlon = 360.0 / ni;
 		
@@ -279,7 +295,7 @@ adsb_pos decode_frame_pos(ADSBFrame& frame_even, ADSBFrame& frame_odd) {
 		position.latitude = latO;
 	}
 	
-	if (position.longitude > 180) position.longitude -= 360;
+	if (position.longitude >= 180) position.longitude -= 360;
 	
 	position.valid = true;
 

firmware/common/adsb.hpp

@@ -83,6 +83,10 @@ const float adsb_lat_lut[58] = {
     86.53536998,    87.00000000
 };
 
+const float PI = 3.14159265358979323846;
+
+const float NZ = 15.0;
+
 void make_frame_adsb(ADSBFrame& frame, const uint32_t ICAO_address);
 
 void encode_frame_id(ADSBFrame& frame, const uint32_t ICAO_address, const std::string& callsign);

firmware/common/aprs_packet.hpp

@@ -339,9 +339,9 @@ private:
 		std::string lat_str = "";
 		std::string lng_str = "";
 
-		bool is_north;
-		bool is_west;
-		uint8_t lng_offset;
+		bool is_north = false;
+		bool is_west = false;
+		uint8_t lng_offset = 0;
 		for(uint8_t i = DESTINATION_START; i < DESTINATION_START + ADDRESS_SIZE - 1; i++){
 			uint8_t ascii = payload[i] >> 1;
 

firmware/common/lcd_ili9341.cpp

@@ -30,8 +30,13 @@ using namespace portapack;
 
 #include "ch.h"
 
+#include "file.hpp"
+
 #include <complex>
 
+#include <cstring>
+#include <string>
+
 namespace lcd {
 
 namespace {
@@ -416,6 +421,113 @@ void ILI9341::drawBMP(const ui::Point p, const uint8_t * bitmap, const bool tran
 	}
 }
 
+/*
+	Draw BMP from SD card.
+	Currently supported formats:
+		16bpp ARGB, RGB565
+		24bpp RGB
+		32bpp ARGB
+*/
+bool ILI9341::drawBMP2(const ui::Point p, const std::string file) {
+	File bmpimage;
+	size_t file_pos = 0;
+	uint16_t pointer = 0;
+	int16_t px = 0, py, width, height;
+	bmp_header_t bmp_header;
+	uint8_t type = 0;
+	char buffer[257];
+	ui::Color line_buffer[240];
+
+	auto result = bmpimage.open(file);
+	if(result.is_valid())
+		return false;
+
+	bmpimage.seek(file_pos);
+	auto read_size = bmpimage.read(&bmp_header, sizeof(bmp_header));
+	if (!((bmp_header.signature == 0x4D42) && // "BM" Signature
+		(bmp_header.planes == 1) && // Seems always to be 1
+		(bmp_header.compression == 0 || bmp_header.compression == 3 ))) {	// No compression
+			return false;
+	}
+
+	switch(bmp_header.bpp) {
+		case 16:
+			file_pos = 0x36;
+			memset(buffer, 0, 16);
+			bmpimage.read(buffer, 16);
+			if(buffer[1] == 0x7C)
+				type = 3; // A1R5G5B5
+			else
+				type = 0; // R5G6B5
+			break;
+		case 24:
+			type = 1;
+			break;
+		case 32:
+		default:
+			type = 2;
+			break;
+	}
+
+	width = bmp_header.width;
+	height = bmp_header.height;
+
+	file_pos = bmp_header.image_data;
+
+	py = height + 16;
+
+	while(1) {
+		while(px < width) {
+			bmpimage.seek(file_pos);
+			memset(buffer, 0, 257);
+			read_size = bmpimage.read(buffer, 256);
+			if (read_size.is_error())
+				return false;	// Read error
+
+			pointer = 0;
+			while(pointer < 256) {
+				if(pointer + 4 > 256)
+					break;
+				switch(type) {
+					case 0:
+					case 3:
+						if(!type)
+							line_buffer[px] = ui::Color((uint16_t)buffer[pointer] | ((uint16_t)buffer[pointer + 1] << 8));
+						else
+							line_buffer[px] = ui::Color(((uint16_t)buffer[pointer] & 0x1F) | ((uint16_t)buffer[pointer] & 0xE0) << 1 | ((uint16_t)buffer[pointer + 1] & 0x7F) << 9);
+						pointer += 2;
+						file_pos += 2;
+						break;
+					case 1:
+					default:
+						line_buffer[px] = ui::Color(buffer[pointer + 2], buffer[pointer + 1], buffer[pointer]);
+						pointer += 3;
+						file_pos += 3;
+						break;
+					case 2:
+						line_buffer[px] = ui::Color(buffer[pointer + 2], buffer[pointer + 1], buffer[pointer]);
+						pointer += 4;
+						file_pos += 4;
+						break;
+				}
+				px++;
+				if(px >= width) {
+					break;
+				}
+			}
+			if(read_size.value() != 256)
+				break;
+		}
+		render_line({ p.x(), p.y() + py }, px, line_buffer);
+		px = 0;
+		py--;
+
+		if(read_size.value() < 256 || py < 0)
+			break;
+	}
+	return true;
+}
+
 void ILI9341::draw_line(const ui::Point start, const ui::Point end, const ui::Color color) {
 	int x0 = start.x();
 	int y0 = start.y();

firmware/common/lcd_ili9341.hpp

@@ -60,6 +60,7 @@ public:
 
 	void draw_pixel(const ui::Point p, const ui::Color color);
 	void drawBMP(const ui::Point p, const uint8_t * bitmap, const bool transparency);
+	bool drawBMP2(const ui::Point p, const std::string file);
 	void render_line(const ui::Point p, const uint8_t count, const ui::Color* line_buffer);
 	void render_box(const ui::Point p, const ui::Size s, const ui::Color* line_buffer);
 	

firmware/common/message.hpp

@@ -376,13 +376,16 @@ public:
 class ADSBFrameMessage : public Message {
 public:
 	constexpr ADSBFrameMessage(
-		const adsb::ADSBFrame& frame
+		const adsb::ADSBFrame& frame,
+		const uint32_t amp
 	) : Message { ID::ADSBFrame },
-		frame { frame }
+		frame { frame },
+		amp(amp)
 	{
 	}
 	
 	adsb::ADSBFrame frame;
+	uint32_t amp;
 };
 
 class AFSKDataMessage : public Message {
@@ -1016,17 +1019,10 @@ public:
 
 class POCSAGConfigureMessage : public Message {
 public:
-	constexpr POCSAGConfigureMessage(
-		const pocsag::BitRate bitrate,
-		const bool phase
-	) : Message { ID::POCSAGConfigure },
-		bitrate(bitrate),
-		phase(phase)
+	constexpr POCSAGConfigureMessage() 
+	: Message { ID::POCSAGConfigure }
 	{
 	}
-
-	const pocsag::BitRate bitrate;
-	const bool phase;
 };
 
 class APRSPacketMessage : public Message {

firmware/common/pocsag.cpp

@@ -36,6 +36,7 @@ std::string bitrate_str(BitRate bitrate) {
 		case BitRate::FSK512:	return "512bps ";
 		case BitRate::FSK1200:	return "1200bps";
 		case BitRate::FSK2400:	return "2400bps";
+		case BitRate::FSK3200:	return "3200bps";
 		default:				return "????";
 	}
 }
@@ -219,7 +220,176 @@ void pocsag_encode(const MessageType type, BCHCode& BCH_code, const uint32_t fun
 	} while (char_idx < message_size);
 }
 
+
+// -------------------------------------------------------------------------------
+// -------------------------------------------------------------------------------
+inline int bitsDiff(unsigned long left, unsigned long right)
+{
+	unsigned long xord = left ^ right;
+	int count = 0;
+	for (int i = 0; i<32; i++)
+	{
+		if ((xord & 0x01) != 0) ++count;
+		xord = xord >> 1;
+	}
+	return(count);
+
+}
+
+// -------------------------------------------------------------------------------
+// -------------------------------------------------------------------------------
+static uint32_t ecs[32];        /* error correction sequence */
+static uint32_t bch[1025];
+static int eccSetup = 0;
+
+// -------------------------------------------------------------------------------
+// -------------------------------------------------------------------------------
+void setupecc()
+{
+	unsigned int srr = 0x3b4;
+	unsigned int i, n, j, k;
+
+	/* calculate all information needed to implement error correction */
+	// Note : this is only for 31,21 code used in pocsag & flex
+	//        one should probably also make use of 32nd parity bit
+	for (i = 0; i <= 20; i++)
+	{
+		ecs[i] = srr;
+		if ((srr & 0x01) != 0) srr = (srr >> 1) ^ 0x3B4; else srr = srr >> 1;
+	}
+
+	/* bch holds a syndrome look-up table telling which bits to correct */
+	// first 5 bits hold location of first error; next 5 bits hold location
+	// of second error; bits 12 & 13 tell how many bits are bad
+	for (i = 0; i<1024; i++) bch[i] = 0;
+
+	/* two errors in data */
+	for (n = 0; n <= 20; n++)
+	{
+		for (i = 0; i <= 20; i++)
+		{
+			j = (i << 5) + n;
+			k = ecs[n] ^ ecs[i];
+			bch[k] = j + 0x2000;
+		}
+	}
+
+	/* one error in data */
+	for (n = 0; n <= 20; n++)
+	{
+		k = ecs[n];
+		j = n + (0x1f << 5);
+		bch[k] = j + 0x1000;
+	}
+
+	/* one error in data and one error in ecc portion */
+	for (n = 0; n <= 20; n++)
+	{
+		for (i = 0; i<10; i++)  /* ecc screwed up bit */
+		{
+			k = ecs[n] ^ (1 << i);
+			j = n + (0x1f << 5);
+			bch[k] = j + 0x2000;
+		}
+	}
+
+	/* one error in ecc */
+	for (n = 0; n<10; n++)
+	{
+		k = 1 << n;
+		bch[k] = 0x3ff + 0x1000;
+	}
+
+	/* two errors in ecc */
+	for (n = 0; n<10; n++)
+	{
+		for (i = 0; i<10; i++)
+		{
+			if (i != n)
+			{
+				k = (1 << n) ^ (1 << i);
+				bch[k] = 0x3ff + 0x2000;
+			}
+		}
+	}
+}
+
+// -------------------------------------------------------------------------------
+// -------------------------------------------------------------------------------
+inline int errorCorrection(uint32_t * val)
+{
+	// Set up the tables the first time
+	if (eccSetup == 0)
+	{
+		setupecc();
+		eccSetup = 1;
+	}
+
+	int i, synd, errl, acc, pari, ecc, b1, b2;
+
+	errl = 0;
+	pari = 0;
+
+	/* run through error detection and correction routine */
+
+	//  for (i=0; i<=20; i++)
+	ecc = 0;
+	for (i = 31; i >= 11; --i)
+	{
+		if ((*val&(1 << i))) { ecc = ecc ^ ecs[31 - i]; pari = pari ^ 0x01; }
+	}
+
+	//  for (i=21; i<=30; i++)
+	acc = 0;
+	for (i = 10; i >= 1; --i)
+	{
+		acc = acc << 1;
+		if ((*val&(1 << i))) { acc = acc ^ 0x01; }
+	}
+
+	synd = ecc ^ acc;
+
+	errl = 0;
+
+	if (synd != 0)		/* if nonzero syndrome we have error */
+	{
+
+		if (bch[synd] != 0)		/* check for correctable error */
+		{
+			b1 = bch[synd] & 0x1f;
+			b2 = bch[synd] >> 5;
+			b2 = b2 & 0x1f;
+
+			if (b2 != 0x1f)
+			{
+				*val ^= 0x01 << (31 - b2);
+				ecc = ecc ^ ecs[b2];
+			}
+
+			if (b1 != 0x1f)
+			{
+				*val ^= 0x01 << (31 - b1);
+				ecc = ecc ^ ecs[b1];
+			}
+
+			errl = bch[synd] >> 12;
+		}
+		else
+		{
+			errl = 3;
+		}
+
+		if (errl == 1) pari = pari ^ 0x01;
+	}
+
+	if (errl == 4) errl = 3;
+
+	return errl;
+}
+
+
 void pocsag_decode_batch(const POCSAGPacket& batch, POCSAGState * const state) {
+	int errors = 0;
 	uint32_t codeword;
 	char ascii_char;
 	std::string output_text = "";
@@ -230,15 +400,21 @@ void pocsag_decode_batch(const POCSAGPacket& batch, POCSAGState * const state) {
 	for (size_t i = 0; i < 16; i++) {
 		codeword = batch[i];
 		
+		errorCorrection(&codeword);
+		errors = errorCorrection(&codeword);
+
 		if (!(codeword & 0x80000000U)) {
 			// Address codeword
 			if (state->mode == STATE_CLEAR) {
-				if (codeword != POCSAG_IDLEWORD) {
+				//if (codeword != POCSAG_IDLEWORD) {
+				if (! (bitsDiff(codeword, POCSAG_IDLEWORD) < 1)){
+
 					state->function = (codeword >> 11) & 3;
 					state->address = (codeword >> 10) & 0x1FFFF8U;	// 18 MSBs are transmitted
 					state->mode = STATE_HAVE_ADDRESS;
 					state->out_type = ADDRESS;
-					
+					state->errors = errors;
+
 					state->ascii_idx = 0;
 					state->ascii_data = 0;
 				}
@@ -246,6 +422,7 @@ void pocsag_decode_batch(const POCSAGPacket& batch, POCSAGState * const state) {
 				state->mode = STATE_CLEAR;				// New address = new message
 			}
 		} else {
+			state->errors += errors;
 			// Message codeword
 			if (state->mode == STATE_HAVE_ADDRESS) {
 				// First message codeword: complete address
@@ -270,7 +447,10 @@ void pocsag_decode_batch(const POCSAGPacket& batch, POCSAGState * const state) {
    
 				// Translate non-printable chars
 				if ((ascii_char < 32) || (ascii_char > 126))
-					output_text += "[" + to_string_dec_uint(ascii_char) + "]";
+				{
+					//output_text += "[" + to_string_dec_uint(ascii_char) + "]";
+					output_text += ".";
+				}
 				else
 					output_text += ascii_char;
 			}

firmware/common/pocsag.hpp

@@ -62,6 +62,7 @@ struct POCSAGState {
 	OutputType out_type = EMPTY;
 	uint32_t ascii_data;
 	uint32_t ascii_idx;
+	uint32_t errors;
 	std::string output;
 };
 

firmware/common/pocsag_packet.hpp

@@ -63,11 +63,11 @@ public:
 		return (index < 16) ? codewords[index] : 0;
 	}
 	
-	void set_bitrate(const BitRate bitrate) {
+	void set_bitrate(const uint16_t bitrate) {
 		bitrate_ = bitrate;
 	}
 	
-	BitRate bitrate() const {
+	uint16_t bitrate() const {
 		return bitrate_;
 	}
 	
@@ -81,12 +81,12 @@ public:
 
 	void clear() {
 		codewords.fill(0);
-		bitrate_ = UNKNOWN;
+		bitrate_ = 0u;
 		flag_ = NORMAL;
 	}
 
 private:
-	BitRate bitrate_ { UNKNOWN };
+	uint16_t bitrate_ { 0 };
 	PacketFlag flag_ { NORMAL };
 	std::array <uint32_t, 16> codewords { 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0  };
 	Timestamp timestamp_ { };

firmware/common/portapack_persistent_memory.cpp

@@ -224,9 +224,17 @@ void set_playdead_sequence(const uint32_t new_value) {
 
 // ui_config is an uint32_t var storing information bitwise
 // bits 0,1,2 store the backlight timer
-// bits 31, 30,29,28,27 stores the different single bit configs depicted below
+// bits 31, 30,29,28,27, 26, 25 stores the different single bit configs depicted below
 // bits on position 4 to 19 (16 bits) store the clkout frequency
 
+bool hide_clock() { // clock hidden from main menu
+	return data->ui_config & (1 << 25);
+}
+
+bool clock_with_date() { // show clock with date, if not hidden
+	return data->ui_config & (1 << 26);
+}
+
 bool clkout_enabled() {
 	return data->ui_config & (1 << 27);
 }
@@ -251,6 +259,14 @@ uint32_t config_backlight_timer() {
 	return timer_seconds[data->ui_config & 7]; //first three bits, 8 possible values
 }
 
+void set_clock_hidden(bool v) {
+	data->ui_config = (data->ui_config & ~(1 << 25)) | (v << 25);
+}
+
+void set_clock_with_date(bool v) {
+	data->ui_config = (data->ui_config & ~(1 << 26)) | (v << 26);
+}
+
 void set_clkout_enabled(bool v) {
 	data->ui_config = (data->ui_config & ~(1 << 27)) | (v << 27);
 }

firmware/common/portapack_persistent_memory.hpp

@@ -75,11 +75,15 @@ bool stealth_mode();
 void set_stealth_mode(const bool v);
 
 bool config_splash();
+bool hide_clock();
+bool clock_with_date();
 bool config_login();
 bool config_speaker();
 uint32_t config_backlight_timer();
 
 void set_config_splash(bool v);
+void set_clock_hidden(bool v);
+void set_clock_with_date(bool v);
 void set_config_login(bool v);
 void set_config_speaker(bool v); 
 void set_config_backlight_timer(uint32_t i);

firmware/common/sine_table_int8.hpp

@@ -44,4 +44,5 @@ static const int8_t sine_table_i8[256] = {
 	-49, -46, -43, -40, -37, -34, -31, -28, -25, -22, -19, -16, -13, -9, -6, -3
 };
 
+
 #endif/*__SINE_TABLE_I8_H__*/

firmware/common/ui.hpp

@@ -325,6 +325,7 @@ enum class KeyEvent {
 	Down = 2,
 	Up = 3,
 	Select = 4,
+	Back = 5, /* Left and Up together */
 };
 
 using EncoderEvent = int32_t;

firmware/common/ui_focus.cpp

@@ -179,7 +179,14 @@ void FocusManager::update(
 		};
 
 		const auto nearest = std::min_element(collection.cbegin(), collection.cend(), compare_fn);
-		if( nearest != collection.cend() ) {
+		// Up and left to indicate back
+		if (event == KeyEvent::Back) {
+			collection.clear();
+			widget_collect_visible(top_widget, find_back_fn, collection);
+			if (!collection.empty())
+				set_focus_widget(collection[0].first);
+		}
+		else if( nearest != collection.cend() ) {
 			//focus->blur();
 			const auto new_focus = (*nearest).first;
 			set_focus_widget(new_focus);

firmware/common/ui_widget.cpp

@@ -410,23 +410,29 @@ void Labels::paint(Painter& painter) {
 void LiveDateTime::on_tick_second() {
 	rtcGetTime(&RTCD1, &datetime);
 	text = "";
-	
-	if(date_enabled){
-		text = to_string_dec_uint(datetime.month(), 2, '0') + "/" + to_string_dec_uint(datetime.day(), 2, '0') + " ";
-	}
-	
-	text = text + to_string_dec_uint(datetime.hour(), 2, '0') + ":" + to_string_dec_uint(datetime.minute(), 2, '0');
+	if(!hide_clock) {
+		if(date_enabled){
+			text = to_string_dec_uint(datetime.year(), 4, '0') + "-" +
+				   to_string_dec_uint(datetime.month(), 2, '0') + "-" + 
+				   to_string_dec_uint(datetime.day(), 2, '0') + " ";
+		}
+		else{
+			text = "           ";
+		}
+		
+		text = text + to_string_dec_uint(datetime.hour(), 2, '0') + ":" + to_string_dec_uint(datetime.minute(), 2, '0');
 
-	if(seconds_enabled){
-		text += ":";
+		if(seconds_enabled){
+			text += ":";
 
-		if(init_delay==0)
-			text += to_string_dec_uint(datetime.second(), 2, '0');
-		else
-		{
-			// Placeholder while the seconds are not updated
-			text += "XX";
-			init_delay--;
+			if(init_delay==0)
+				text += to_string_dec_uint(datetime.second(), 2, '0');
+			else
+			{
+				// Placeholder while the seconds are not updated
+				text += "XX";
+				init_delay--;
+			}
 		}
 	}
 	set_dirty();
@@ -459,6 +465,9 @@ void LiveDateTime::paint(Painter& painter) {
 		text
 	);
 }
+void LiveDateTime::set_hide_clock(bool new_value){
+	this->hide_clock = new_value;
+}
 
 void LiveDateTime::set_date_enabled(bool new_value){
 	this->date_enabled = new_value;

firmware/common/ui_widget.hpp

@@ -244,6 +244,7 @@ public:
 
 	void paint(Painter& painter) override;
 
+	void set_hide_clock(bool new_value);
 	void set_seconds_enabled(bool new_value);
 	void set_date_enabled(bool new_value);
 
@@ -255,6 +256,7 @@ private:
 	void on_tick_second();
 	
 	uint16_t init_delay = 4;
+	bool hide_clock = false;
 	bool date_enabled = true;
 	bool seconds_enabled = false;
 	

firmware/tools/generate_airlines.db.py

@@ -1,42 +0,0 @@
-#!/usr/bin/env python
-
-# Copyright (C) 2017 Furrtek
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; see the file COPYING.  If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-#
-
-import sys
-import struct
-
-outfile = open("airlines.db", "w")
-
-# Download airlines.txt from http://xdeco.org/?page_id=30
-lines = [line.rstrip('\n') for line in open('../../sdcard/ADSB/airlines.txt', 'r')]
-n = 0
-
-for line in lines:
-	if line:
-		nd = line.find('(')
-		if (nd == -1):
-			nd = None
-		else:
-			nd -= 1
-		nline = line[4:7] + '\0' + line[10:nd] + '\0'
-		print nline
-		b = bytearray(nline)
-		pad_len = 32 - len(b)
-		b += "\0" * pad_len
-		outfile.write(b)

firmware/tools/make_airlines_db/README.md

@@ -0,0 +1,7 @@
+# Make airlines.db
+
+Licensed under GNU GPL v3 (license)[../../../LICENSE]
+
+USAGE:
+ - Copy file from: https://raw.githubusercontent.com/kx1t/planefence-airlinecodes/main/airlinecodes.txt
+ - Run Python 3 script: `./make_airlines_db.py` 

firmware/tools/make_airlines_db/make_airlines_db.py

@@ -0,0 +1,54 @@
+#!/usr/bin/env python3
+
+# Copyright (C) 2021 ArjanOnwezen
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+# -------------------------------------------------------------------------------------
+# Create airline.db, used for ADS-B receiver application, using
+# https://raw.githubusercontent.com/kx1t/planefence-airlinecodes/main/airlinecodes.txt
+# as a source.
+# -------------------------------------------------------------------------------------
+import csv
+import unicodedata
+icao_codes=bytearray()
+airlines_countries=bytearray()
+row_count=0
+
+database=open("airlines.db", "wb")
+
+with open('airlinecodes.txt', 'rt') as csv_file:
+        sorted_lines=sorted(csv_file.readlines())
+
+        for row in csv.reader(sorted_lines, quotechar='"', delimiter=',', quoting=csv.QUOTE_ALL, skipinitialspace=True):
+                icao_code=row[0]
+                # Normalize some unicode characters
+                airline=unicodedata.normalize('NFKD', row[1][:32]).encode('ascii', 'ignore')
+                country=unicodedata.normalize('NFKD', row[3][:32]).encode('ascii', 'ignore')
+                if len(icao_code) == 3 :
+                        airline_padding=bytearray()
+                        country_padding=bytearray()
+                        print(icao_code,' - ', airline,' - ', country)
+                        icao_codes=icao_codes+bytearray(icao_code+'\0', encoding='ascii')
+                        airline_padding=bytearray('\0' * (32 - len(airline)), encoding='ascii')
+                        country_padding=bytearray('\0' * (32 - len(country)), encoding='ascii')
+                        airlines_countries=airlines_countries+bytearray(airline+airline_padding+country+country_padding)
+                        row_count+=1
+
+database.write(icao_codes+airlines_countries)
+print("Total of", row_count, "ICAO codes stored in database")
+

hardware/portapack_h2/3d_printed/README.md

@@ -0,0 +1,7 @@
+Enclosure
+
+https://www.thingiverse.com/thing:4260973
+
+Cover
+
+https://www.thingiverse.com/thing:4278961

sdcard/FREQMAN/GSM-NL.TXT

@@ -0,0 +1,46 @@
+a=703000000,b=713000000,d=5G 700u Vodafone
+a=713000000,b=723000000,d=5G 700u KPN
+a=723000000,b=733000000,d=5G 700u T-Mobile
+a=758000000,b=768000000,d=5G 700d Vodafone
+a=768000000,b=778000000,d=5G 700d KPN
+a=778000000,b=788000000,d=5G 700d T-Mobile
+a=791000000,b=801000000,d=4G 800d T-Mobile
+a=801000000,b=811000000,d=4G 800d Vodafone
+a=811000000,b=821000000,d=4G 800d KPN
+a=832000000,b=842000000,d=4G 800u T-Mobile
+a=842000000,b=852000000,d=4G 800u Vodafone
+a=852000000,b=862000000,d=4G 800u KPN
+a=880000000,b=890000000,d=2G_3G 900u Vodafone
+a=890000000,b=900000000,d=2G_3G 900u KPN
+a=900000000,b=915000000,d=4G 900u T-Mobile
+a=925000000,b=935000000,d=2G_3G 900d Vodafone
+a=935000000,b=945000000,d=2G_3G 900d KPN
+a=945000000,b=960000000,d=4G 900d T-Mobile
+a=1452000000,b=1467000000,d=2G_3G 1400d Vodafone
+a=1467000000,b=1482000000,d=2G_3G 1400d KPN
+a=1482000000,b=1492000000,d=4G 1400d T-Mobile
+a=1710000000,b=1730000000,d=4G 1800u KPN
+a=1730000000,b=1750000000,d=4G 1800u Vodafone
+a=1750000000,b=1780000000,d=4G 1800u T-Mobile
+a=1805000000,b=1825000000,d=4G 1800d KPN
+a=1825000000,b=1845000000,d=4G 1800d Vodafone
+a=1845000000,b=1875000000,d=4G 1800d T-Mobile
+a=1920000000,b=1940000000,d=3G_4G 2100u Vodafone
+a=1940000000,b=1960000000,d=3G_4G 2100u T-Mobile
+a=1960000000,b=1980000000,d=3G_4G 2100u KPN
+a=2110000000,b=2130000000,d=3G_4G 2100d Vodafone
+a=2130000000,b=2150000000,d=3G_4G 2100d T-Mobile
+a=2150000000,b=2170000000,d=3G_4G 2100d KPN
+a=2500000000,b=2510000000,d=LTE 2600u Vodafone
+a=2510000000,b=2530000000,d=LTE 2600u Vodafone
+a=2530000000,b=2535000000,d=LTE 2600u T-Mobile
+a=2535000000,b=2545000000,d=LTE 2600u KPN
+a=2545000000,b=2565000000,d=LTE 2600u T-Mobile
+a=2565000000,b=2590000000,d=4G 2600d_u T-Mobile
+a=2590000000,b=2620000000,d=4G 2600d_u KPN
+a=2620000000,b=2630000000,d=LTE 2600d Vodafone
+a=2630000000,b=2650000000,d=LTE 2600d Vodafone
+a=2650000000,b=2655000000,d=LTE 2600d T-Mobile
+a=2655000000,b=2665000000,d=LTE 2600d KPN
+a=2665000000,b=2685000000,d=LTE 2600d T-Mobile
+a=2685000000,b=2690000000,d=UNKNOWNd_u 2600 T-Mobile

sdcard/FREQMAN/ISM.TXT

@@ -0,0 +1,7 @@
+f=13560000,d=Worldwide 13.56 MHz
+f=27120000,d=Worldwide 27MHz
+f=40660000,d=Worldwide 40MHz
+f=433920000,d=ITU Reg 1 433 MHz
+f=915000000,d=ITU Reg 2 915 MHz
+f=2450000000,d=Worldwide 2.4 GHz
+f=5800000000,d=Worldwide 5.8 GHz

sdcard/FREQMAN/RADIOSONDE.TXT

@@ -0,0 +1,46 @@
+f=400500000,d=AU SE
+f=401000000,d=FR
+f=401100000,d=CZ
+f=401400000,d=FR
+f=401500000,d=AU
+f=401590000,d=FR
+f=401600000,d=FR
+f=402000000,d=BR FR GR IT RS
+f=402010000,d=TR
+f=402200000,d=GR
+f=402500000,d=AU DE
+f=402740000,d=GR
+f=402790000,d=RS
+f=402800000,d=GB IT RS
+f=402870000,d=BE
+f=403000000,d=BE BR CZ HU IE IT NL
+f=403010000,d=DE NL TR
+f=403150000,d=DE
+f=403200000,d=HU
+f=403500000,d=BE HU
+f=403530000,d=BY
+f=403600000,d=RO
+f=403700000,d=BR GB
+f=403820000,d=RO
+f=403900000,d=NL
+f=403920000,d=RO
+f=403810000,d=DE
+f=404000000,d=BR CZ ES IT US
+f=404010000,d=US
+f=404020000,d=US
+f=404100000,d=GB
+f=404300000,d=DE
+f=404310000,d=DE
+f=404380000,d=GB
+f=404400000,d=GB
+f=404710000,d=DE
+f=404800000,d=IT
+f=405000000,d=ES
+f=405010000,d=FR
+f=405030000,d=BY
+f=405100000,d=GB
+f=405300000,d=BY ES IE SE
+f=405600000,d=GB
+f=405680000,d=GB
+f=405700000,d=DE GB
+f=405900000,d=DE