10 Commity (master)

Autor	SHA1	Wiadomość	Data
Rob Riggs	9e6f588d30	Update to version 2.4.4. Clock recovery improvements. Update the sample index more frequently to reduce EVM. Re-wrote the symbol deviation, offset, EVM code. More code comments.	2022-05-29 17:09:09 -05:00
Rob Riggs	f4ac271109	Change clock used for M17 to 48MHz.	2022-01-23 15:06:46 -06:00
Rob Riggs	23713d9ed3	Use EOT sync word for end of stream rather than EOS bit. Use only sync word and Kalman filter for clock recovery. Simplify some of the state transistions. Reduce DCD limits since we can follow symbol clock at lower levels now. Use a smaller FIR filter for RRC.	2022-01-23 15:05:20 -06:00
Rob Riggs	1f3925a462	Fix M17 RX reverse polarity.	2021-10-25 20:20:57 -05:00
Rob Riggs	b2977c66a4	Add support for BER testing. Update version to v2.3.2	2021-08-03 21:32:40 -05:00
Rob Riggs	d05679630b	Simplify FIR filter code.	2021-06-30 20:16:15 -05:00
Rob Riggs	0da7939f15	Enable oversampling for all demodulators.	2021-06-22 20:41:46 -05:00
Rob Riggs	f43d6d5441	Major change to M17 demodulator. Improves demod performance, perhaps at the expense of tracking signals with extremely inaccurate clocks. It should be able to handle up to ~500ppm error between TX & RX. Improve LICH decoding.	2021-06-20 20:41:48 -05:00
Rob Riggs	eb478b443a	Sync NucleoTNC firmware with TNC3 v2.1.8 codebase. Upgrade compiler to GCC 10.2. Upgrade to C++20 for std::span. Changes to reduce stack utilization. Reduce jitter by adjusting clocks & interrupt priority. Fix serial port timeout on large packets. Use floating point for M17 modulator. Fix LICH decode defect.	2021-02-21 20:48:09 -06:00
Rob Riggs	acb142cecb	Add M17 support. Refactor code so it is much closer to TNC3 codebase.	2021-01-02 21:59:59 -06:00