Commit Graph

219 Commits

Author SHA1 Message Date
Jared Boone 0bc8f551de Use matched filter for AIS GMSK demodulation demo.
Less than optimal for plain FSK, but flexible enough to also support GFSK/GMSK. Not at all optimized for SIMD instructions, so may not perform adequately at Bluetooth/GSM rates.
2015-11-06 09:40:00 -08:00
Jared Boone a9c190b6bb Matched filter implementation.
Essentially a complex FIR filter that's more flexible than the ones already in the code base. Refactor?!
2015-11-06 09:40:00 -08:00
Jared Boone 6499de39bf Shorten AIS packet to expected data + FCS length. 2015-11-06 09:40:00 -08:00
Jared Boone bd76f0e13b Note to try different -mcpu= for LPC43xx Cortex-M0. 2015-11-06 09:40:00 -08:00
Jared Boone e9f28f9ef3 Provide configuration of symbol unstuffing. 2015-11-06 09:40:00 -08:00
Jared Boone a00fcbaa8f Unstuffing pattern length of zero should never match. 2015-11-06 09:40:00 -08:00
Jared Boone 05badaddda Put symbol coding into PacketBuilder.
Removes stuffing symbols before placing them into packet buffer.
2015-11-06 09:40:00 -08:00
Jared Boone c936e09702 Add bit unstuffing algorithm.
For use in AIS. Probably useful elsewhere, too...
2015-11-06 09:39:59 -08:00
Jared Boone 31ff13f1c0 Un-const Message in message handler interfaces.
I want to modify in place the messages that are received. Naughty, but oh well.
2015-11-06 09:39:59 -08:00
Jared Boone 5469a3a31d Get ui::Console to a working state. 2015-11-06 09:39:59 -08:00
Jared Boone 5c31e803c8 Change interface to AccessCodeCorrelator, inline in header. 2015-11-06 09:39:59 -08:00
Jared Boone a3cce5632e Complete rewrite of clock recovery, lots of refactoring. 2015-11-06 09:39:59 -08:00
Jared Boone 8b2e75a299 Add LinearResampler implementation for clock recovery. 2015-11-06 09:39:59 -08:00
Jared Boone f13e2d32c0 Add symbol coding namespace, NRZI decoder. 2015-11-06 09:39:59 -08:00
Jared Boone 934936d3f6 Enhancements to clock recovery
Linearly interpolate input and delayed samples, based on phase of internal symbol clock.
2015-11-06 09:39:59 -08:00
Jared Boone 144b121b0e Windows 8.1 firmware tool images. 2015-10-22 11:37:28 -07:00
Jared Boone b41ff962f4 Replace std::sin() with interpolated LUT. 2015-10-14 11:10:24 -07:00
Jared Boone 291de8f869 Change channel_spectrum type to std::complex<float>.
Move FFT bit-reversal to complex<int16_t> -> complex<float> copy.
Change window so that adjacent bins have constant(-ish) gain.
Change window to float.
Change time domain samples to accumulate at even intervals over the FFT interval.
2015-10-14 11:10:24 -07:00
Jared Boone 882fbbef31 Add more fft_swap bit reversal functions. 2015-10-14 11:10:24 -07:00
Jared Boone 8f7e26b5c1 Break out BasebandStatsView, add main, RSSI threads. 2015-10-14 10:59:32 -07:00
Jared Boone 7f46f0d071 Add tick tracking for all baseband threads. 2015-10-14 10:44:20 -07:00
Jared Boone aa733b1b61 Remove FSK from receiver menu. It doesn't do anything (yet). 2015-09-02 18:55:00 -07:00
Jared Boone f91f17b9fb Increase touch sensitivity a bit. 2015-09-02 18:48:51 -07:00
Jared Boone 9a3454d695 Touch code cleanup, stop scanning when no touch.
No need to change voltages on touch panel when no touch is detected. This should reduce noise a bit.
2015-09-02 18:48:38 -07:00
Jared Boone f1ca3fe5bb Switch RFFC5072, MAX2837 back to 40MHz reference.
Turns out the MAX2837 can't tune the necessary range when given a 50MHz reference. Oops.
2015-09-02 17:45:19 -07:00
Jared Boone 293337b647 Init radio in RX mode, not TX mode. 2015-09-02 17:30:16 -07:00
Jared Boone e2bb77d756 Change wideband FFT bin filter, clean up code a bit. 2015-09-02 11:29:38 -07:00
Jared Boone c4de9c4423 Mute audio whenever baseband mode is changed. 2015-09-01 21:05:47 -07:00
Jared Boone c52de7abe6 Clean up baseband/RSSI streaming control.
Address hang-up of baseband and RSSI when switching modulation modes really fast.
2015-09-01 21:05:32 -07:00
Jared Boone 687e627dae Mechanism to clear waterfall when switching modulations. 2015-09-01 21:04:27 -07:00
Jared Boone d4c85bd786 Move receiver "back" button to separate row. 2015-09-01 20:38:59 -07:00
Jared Boone 24e398ca62 Add HackRF mode explanation text. 2015-09-01 20:23:11 -07:00
Jared Boone 250da67d0f Remove region, put in environment variables. 2015-09-01 15:47:08 -07:00
Jared Boone 2c778b72e2 Wrong S3 region. 2015-09-01 15:15:24 -07:00
Jared Boone 72a59c3dae Fix cwd when uploading release files. 2015-09-01 15:07:31 -07:00
Jared Boone a06ee31566 Make release and post on S3. 2015-09-01 14:53:40 -07:00
Jared Boone 57ec7aac41 Remove container stuff. 2015-09-01 14:53:40 -07:00
Jared Boone 340fc4dd83 Override compilers. 2015-09-01 14:53:40 -07:00
Jared Boone 61d765aeac before_install vs. before_script? No idea... 2015-09-01 14:53:40 -07:00
Jared Boone e96895d18c Container's not flexible enough, back to the old approach. 2015-09-01 14:53:40 -07:00
Jared Boone e0c313b240 Switch to shiny container. 2015-09-01 14:53:40 -07:00
Jared Boone 8b465a593e Whitespace, huh? OK... 2015-09-01 14:53:40 -07:00
Jared Boone 0f39d52f48 More Travis CI stumbling. 2015-09-01 14:53:39 -07:00
Jared Boone 92674706ed Oops, bad Travis CI .yml syntax. 2015-09-01 14:53:39 -07:00
Jared Boone 0fd2dcf04a Experimenting with Travis CI for firmware builds. 2015-09-01 14:53:39 -07:00
Jared Boone 4846557f12 Missed spots when renaming REVISION to GIT_REVISION. 2015-09-01 14:21:40 -07:00
Jared Boone 5d8c636f40 Halt M4 right after sending M0 the shutdown message.
Addresses issue #55.
2015-09-01 13:49:09 -07:00
Jared Boone 805442d46f Allow KiCad to update metadata. 2015-09-01 11:10:50 -07:00
Jared Boone d9568f7f47 Update date code to 20150901. 2015-09-01 11:09:19 -07:00
Jared Boone 1c2b3b82ce Update layers exported during PCB plot. 2015-09-01 10:17:30 -07:00