stafur
584587d814
* Updated PRALINE audio processing methods to account for potential slip in 25MHz reference clock. Moved all clocks to PLLB except for CLK0 to isolate the ADC from potential EMI and clock spills from the other clocks to CLK0. Added PLL reference to Clock ui_debug display and added debug view for PLLA and PLLB. Updated PRO menu in analog_audio_app to allow for 100Hz resolution in sample rate for finer control of samplerate debugging of crackling noise artifacts. Updated ppb method and set it for account for a potential 49 Hz shift in the PRALINE crystal. Started instatiating methods for synchronized DMA transfers for the spectrogram since the FFT calculations and the LCD data updates appear to be related to the crackling noise. * Added firmware/flash.h to .gitignore. * Changed reference clock for start_audio_pll to 40MHz instead of ~12MHz xtal. Moved clocks around to reflect best audio quality in analog_audio_app at 3.072 MHz sample frequency. * Ran format-code.sh. * Removed ppb in set_sampling_frequency since it created aliasing in analog_audio_app. * Expanded baseband_bandwidth back to 1750000 after testing since audio quality was retained. * Updated comments to address copilot recommendations where acceptable. * Removed firmware/flashsize.h from .gitignore as coordinated with @gullradriel.
PortaPack Mayhem
This is a fork of the Havoc firmware, which itself was a fork of the PortaPack firmware, an add-on for the HackRF. A fork is a derivate, in this case one that has extra features and fixes when compared to the older versions.
What is this?
If you are new to HackRF+PortaPack+Mayhem, check these:
Frequently Asked Questions
This repository expands upon the previous work by many people and aims to constantly add new features, bugfixes and generate documentation to make further development easier. Collaboration is always welcomed and appreciated.
What to buy?
✔️ 
✔️ A recommended one is this PortaPack H2, that includes everything you need with the plastic case "inspired" on this.
✔️ Some individuals lean towards the H2 with a metal enclosure, but its advantages remain debated. Share your insights on our wiki.
⚠️ Be cautious , ask the seller about compatibility with the latest releases. Look out for the description of the item, if they provide the firmware files for an older version or they have custom setup instructions, this means it might be NOT compatible, for example:
⚠️ If it looks too different, this might mean that they are using their own recipe, check the different models in our wiki. For example all the H3 and clones of that version use their own version of the firmware. They do not contribute the changes back and eventually you will be left with a device that nobody maintains:
Where is the latest version?
The current stable release is on the 
How can I collaborate
You can write documentation, fix bugs and answer issues or add new functionality. Please check the following guide with details.
Consider that the hardware and firmware has been created and maintain by a lot of people, so always try collaborating your time and effort first. For coding related questions, if something does not fit as an issue, please join our Discord by clicking the chat badge on top.
To support the people behind the hardware, please buy a genuine HackRF and PortaPack.
What if I really want something specific?
If what you need can be relevant in general, you can request a feature. Alternatively, go to our Discord by clicking the chat badge on top and discuss there.
What if I need help?
First, check the documentation. If you find a bug or you think the problem is related to the current repository, please open an issue.
You can reach the official community in Facebook, and our Discord by clicking the chat badge on top.