2fc89bf583
Renamed 'HAS_GPS' and 'HAS_RTC' to, respectively, 'GPS_PRESENT' and 'RTC_PRESENT'
2022-07-02 10:28:28 +02:00
6d10f52b5b
Clean termination of all the threads on device shutdown
2022-07-02 10:28:28 +02:00
bc0c80edf6
Displaying of current heap usage in info page
2022-07-02 10:28:28 +02:00
52ead401bd
Reorganised GPS task to make it a non-blocking task to be called periodically
2022-07-02 10:28:28 +02:00
d16eb04696
Reorganised data structures and functions to manage date and time
2022-07-02 10:28:28 +02:00
45d919f50f
Reorganised GPS driver to allow for non-blocking acquisition of NMEA sentences
2022-07-02 10:28:28 +02:00
3cc5852ef3
Refactored keyboard thread by moving the keypad scan logic to a dedicated function inside input.h
2022-07-02 10:28:28 +02:00
f1b1dc2034
Changed battery type for Module17 to BAT_NONE
2022-06-21 12:06:20 +02:00
1f56018e52
Added space character to UI text input mode.
2022-06-17 12:15:00 +02:00
a5b7658878
Fixed bug causing the newline character to misalign text if "TEXT_ALIGN_CENTER" is used with multi-line strings.
2022-06-17 12:14:22 +02:00
e5fbb77cd2
Fixed displayed voltage error
2022-06-12 11:52:17 +02:00
c966f82352
Fixed setting of battery voltage and transmission of PTT press signal from linux emulator shell
2022-06-09 23:02:38 +02:00
980fa32e73
Reorganised source code of linux emulator SDL engine
2022-06-09 22:48:41 +02:00
d2e0b7d940
Improved heap memory management in M17 modulator class
2022-06-05 12:27:25 +02:00
a1888ae19e
Improved heap memory management in M17 demodulator class
2022-06-05 12:24:43 +02:00
8b5b6ed571
Moved OpenRTX startup code from main.c to dedicated openrtx_init() and openrtx_run() functions in a separate source file.
2022-06-02 10:01:34 +02:00
316e588bc3
Updated copyright headers
2022-06-02 09:56:05 +02:00
521865f489
Fix bug in new cps code
...
Fixed some bugs in the write and insert functions of the new cps format
functions, currently available only on libc implementations.
Add unit test to ensure that no regressions happen.
TG-428
2022-06-01 16:05:36 +02:00
ae12a2126a
Implement codeplug read and write functions
...
Implemented remaining codeplug functions to read, write and insert
codeplug entries. Fix bugs in ui code. Add unit tests.
TG-428
2022-06-01 16:05:35 +02:00
dc250a25d6
Implement new codeplug interface
...
The new codeplug interface was implemented for linux and retrofitted to
all the existing OpenRTX platforms. Limited unit testing was also
implemented.
TG-428
2022-06-01 15:59:27 +02:00
cbd3922325
Cleanup and reorganisation of state header file, new OpenRTX CPS data structure
2022-06-01 15:04:17 +02:00
da22d6ff64
Separated interface for CPS loading from the non volatile memory one
2022-06-01 14:56:33 +02:00
c3cfaba4b2
Renamed zones into banks to align to M17 codeplug naming convention.
2022-06-01 14:56:22 +02:00
7ed4a64027
On MD-3x0 added a fixed gain of four to codec2 demodulated audio to compensate for the low output volume
2022-05-31 21:28:09 +02:00
4367db53d0
Added configuration of AT1846S registers for digital modes in MD-UV3x0 driver. In M17 mode handler forced signal phase inversion at demodulator side also for MD-UV3x0 devices
2022-05-31 18:19:57 +02:00
4d4ebae2f3
Added configurable phase inversion to M17 demodulator. Forced enabling of phase inversion for MD3x0 VHF radios.
2022-05-30 19:19:01 +02:00
bfa3494777
Fixed bug in M17 demodulator causing the M17Demodulator::getFrame() function to return the frame currently being processed instead of the fully demodulated one.
2022-05-27 21:49:33 +02:00
63f4c787c0
Moved helper functions for M17 Golay to a dedicated source file
2022-05-27 21:49:33 +02:00
1620889640
Reorganised main FSM inside M17 operating mode handler
2022-05-27 21:49:33 +02:00
6322cb49a4
Cleanup demodulator, improved quantization log
...
Unified offset and phase variable to reduce the chance of off-by-ones
between buffers. Improved logging on linux and module17 adding
quantization indices.
TG-81
2022-05-27 21:49:33 +02:00
46c988bdc2
Restoring priority level of output streams to PRIO_BEEP when the stream terminates, made M17Modulator::emitBaseband() wait for effective stream termination before returning when transmission stop is requested. Fixes #76
2022-05-27 21:49:33 +02:00
76be50db61
Improved debug log in M17 demodulator, changed trigger condition for log dump, re-enabled audio reproduction when logging.
2022-05-27 21:49:33 +02:00
4304013d62
Updated M17 demodulator debug logger: now log data is continously updated and dumped only in case of a missed sync after lock has been acquired.
2022-05-27 21:49:33 +02:00
ff7a28ff59
RingBuffer class: implemented eraseElement() function, rewritten the pop() function in a cleaner way, fixed a bug in the pop() function causing the not_full condition variable to be never rised.
2022-05-27 21:49:33 +02:00
29ad0830f0
M17 demodulation improvement
...
Add logging in syncword sweep, fix unsigned underflow bug,
fixed symbol average computation for quantization.
Do syncword sweep whenever available.
TG-81
2022-05-27 21:49:33 +02:00
d17d683b2d
M17 code cleanup pass: reorganised data type definitions and constants
2022-05-27 21:49:33 +02:00
5b27e6b692
Ensure proper termination of baseband sampling when M17Demodulator::terminate() is called.
...
Solves #74 .
2022-05-27 21:49:33 +02:00
7aff678069
Improved robustness of frame type detection, now based on minimum hamming distance between syncwords
2022-05-27 21:49:33 +02:00
115982d279
Add demod log script
...
Add script to receive the demodulated data from Module17/radio, to use
it you need to add in meson.build:12 the ENABLE_DEMOD_LOG define.
Build and flash into the platform, build and run scripts/get_demod_log,
turn on the radio, remember to turn of radio before you terminate
get_demod_log, print the output with
`scripts/plot_m17_demod_csv.py serial_demod_log.csv`.
TG-81
2022-05-27 21:49:32 +02:00
c987848382
Add syncword hot re-sync fix DC removal
...
DC removal filter had a bug that created weird positive spikes on
Module17, add a syncword hot re-sync to be able to correct small phase
errors that appear every five seconds more or less.
TG-81
2022-05-27 21:48:47 +02:00
1f77c2af6c
Reorganised logging inside M17 demodulator, logging is disabled by default.
...
On non-linux devices log data is printed on the serial port in raw binary format.
2022-05-27 21:48:47 +02:00
6be567a781
Implementation of a statically allocated ring buffer with blocking and non-blocking push and pop
2022-05-27 21:48:47 +02:00
ef61c532a3
Cleaned up quantization average
...
Now average is computed over all the syncword symbols, for each syncword
as a simple average.
TG-81
2022-05-27 21:48:47 +02:00
5fe5b0e578
Refactor M17 logging
...
Refactored logging functions to enable in-system logging on Module17 and
MDx radios.
TG-81
2022-05-27 21:48:47 +02:00
361308be16
Generator of pseudorandom binary sequence compliant with M17 specification
2022-05-27 21:48:47 +02:00
3988540b6c
Changed coefficients for the 41-tap, 24kHz RRC filter to have unitary input-output gain
2022-05-27 21:48:47 +02:00
c3c984d504
Add syncword fuzzy detection
...
Frame decoder now tolerates bit error in syncword, removed syncword type
detection in demodulator code.
TG-81
2022-05-27 21:48:47 +02:00
b998d3b78f
Modified time constant of DC removal high-pass filter to avoid a too high cut-off frequency when run with at fast sample rates
2022-05-27 21:48:47 +02:00
6b31a73f42
Corrected RRC gain and changed HR_C5000 modulation factor and input gain to have the correct 2.4kHz deviation when transmitting M17 with an MD3x0 radio
2022-05-27 21:48:47 +02:00
b1f2cb109f
Switch M17 Rx sample rate to 5SPS
...
Due to the RRC computation sometimes violating the timing constraints,
we switched the M17 demodulator to 5 samples per symbol (24KHz), thus
dividing the processing time by four ar the number of samples halves as
well as the number of taps of the RRC.
Minor adaptation on the code followed.
TG-81
2022-05-27 21:48:47 +02:00
e68b05d859
Fixed double free errors in M17 code, see #73
2022-05-27 21:48:47 +02:00
2d59658d60
Switch M17 Rx sample rate to 5SPS
...
Due to the RRC computation sometimes violating the timing constraints,
we switched the M17 demodulator to 5 samples per symbol (24KHz), thus
dividing the processing time by four ar the number of samples halves as
well as the number of taps of the RRC.
Minor adaptation on the code followed.
TG-81
2022-05-27 21:48:47 +02:00
63bd864674
Fix M17 Rx LED
...
Now LED turns on when a syncword is successfully detected, not just when
the correlation is sufficiently high.
TG-81
2022-05-27 21:48:47 +02:00
c4483edff0
Improve quantization strategy
...
Now quantization is performed by averaging syncword samples and dividing
the resulting threshold by a constant.
TG-81
2022-05-27 21:48:47 +02:00
2e7ed7a8f0
M17 demodulator further improvements
...
- Fix phase propagation across buffers
- Fix initial syncword offset detection
- Improve quantization algorithm
TG-81
2022-05-27 21:48:47 +02:00
7d1b89550e
Rewrite quantization algorithm
...
Quantization algorithm is now based on separate rolling averages for
positive and negative samples.
Merged csv outputs from syncword search and quantization on Linux.
TG-81
2022-05-27 21:48:47 +02:00
aa9fcc26b7
Remove useless DC bias in quantization
...
TG-81
2022-05-27 21:48:47 +02:00
d1651a702c
Add proper DC-bias removal, tuned EMAs
2022-05-27 21:48:47 +02:00
da5c453852
Implemented unpacking and decoding of M17 audio stream frames
2022-05-27 21:48:47 +02:00
beca0d2acc
Reorganised constants inside M17 demodulator class
2022-05-27 21:48:47 +02:00
77dfeef9e7
Implemented audio decoding functions in CODEC2 module
2022-05-27 21:48:47 +02:00
fda0fed5e7
Moved constant specifying sample rate for M17 baseband decoding from hwconfig.h files to M17Demodulator class
2022-05-27 21:48:47 +02:00
e5b5daba85
Moved state variables of PWM compensator and DC removal filter outside the function bodies to allow keeping their consistency among function calls
2022-05-27 21:48:47 +02:00
89c05a7332
Adjusted Module17 mic processing gain; interim-fix for DC offset removal
2022-05-27 21:48:47 +02:00
49e5486ea6
Parametric mic gain inside codec2 module
2022-05-27 21:48:47 +02:00
b144657257
Moved CODEC2 management to a dedicated module
2022-05-27 21:48:47 +02:00
4b8685b853
Changed gain and added an offset at tx RRC stage only for Module 17 to compensate for an hardware bug
2022-05-27 21:48:47 +02:00
4a3e31cd03
Fixed bug in M17 demodulator caused by the precedent code refactoring
2022-05-27 21:48:47 +02:00
d1b4973cc9
Fixed reset of DC bias on stream stop in Module 17 output stream driver, made parametric the gain of the RRC at modulator side
2022-05-27 21:48:47 +02:00
83020d4fa3
Increased priority of CODEC2 thread, this fixes glitches when generating M17 baseband signal
2022-05-27 21:48:47 +02:00
3d169484e9
Improved management of CODEC2 thread in M17 mode handler, now activated only when transmitting. Fixes a confict with RTX and MIC input streams causing the rtx thread to hang when PTT was pressed
2022-05-27 21:48:47 +02:00
54a89abcd0
Removed a printf left behind after debugging from M17 demodulator class and slightly cleaned up the code
2022-05-27 21:48:47 +02:00
c9a4bfb199
Cleanup and refactoring of M17 modulator class, now using output streams for baseband signal output
2022-05-27 21:48:47 +02:00
0df1dc4f7e
Extended output stream API to support also circular double-buffered mode, implemented output stream driver for MDx
2022-05-27 21:48:47 +02:00
5c90c19bea
Data conversion utilities
2022-05-27 21:48:47 +02:00
7891288030
Fixed compilation warnings generated by graphics.cpp
2022-05-27 21:48:47 +02:00
427c5f50b3
Made M17Demodulator::update() return a boolean indicating when a new decoded frame is ready
2022-05-27 21:48:47 +02:00
77aead675a
Improve runtime performance of M17 Demodulator
...
Tweaked the exponential moving average alpha factors to improve the
reactivity of the M17 demodulator.
TG-81
2022-05-27 21:48:47 +02:00
5ef145cd39
Add fuzzy syncword validation
...
Now syncword match is not exact but can tolerate up to two erroneous
bits.
TG-81
2022-05-27 21:48:47 +02:00
ca49b306b9
Update constants for M17 demodulation
...
Constants were updated to increase performance based on baseband sample
collected with Module17.
TG-81
2022-05-27 21:48:47 +02:00
2d8c696a09
Complete M17 demodulator implementation
...
Make quantization work also on DC offset signal
Add samples plot code
Fix bug in buffer wrap around
Fix oob memory access in M17 modulator
Update tests with DC offset signal
Switch to 48KHz sample rate for Module17 and MD380
Add DC biasing script
TG-81
2022-05-27 21:48:46 +02:00
f9c23452bc
Add plotting function to graphics library
...
Added plotting function to graphics library which is native C++, so
refactored the graphics source file to allow that, consequently adapted
the hwconfig header files to be included also in C++ sources.
Propagated compile flags also to C++ sources, including asan what was
previously disabled for C++ compilation units.
TG-81
2022-05-27 21:48:46 +02:00
ae26cca46f
Remove SPS
...
Now M17_SAPLES_PER_SYMBOL is computed dinamically from sample rate.
TG-81
2022-05-27 21:48:46 +02:00
a091bca35f
M17 Demodulator bugfixes
...
Fixed several bugs in the M17 Demodulator code.
TG-81
2022-05-27 21:48:46 +02:00
d2c7be9cc8
Fixed bug affecting LSF reassembling from LICH segments inside M17 frame decoder class
2022-05-27 21:48:46 +02:00
35c1f062c6
Implementation of M17 frame encoder
2022-05-27 21:48:46 +02:00
82dd0a63f1
Clarification of naming: renamed DATA_SYNC_WORD to STREAM_SYNC_WORD and Audio_puncture to DATA_PUNCTURE
2022-05-27 21:48:46 +02:00
25087b0e02
Removed BUF_CIRC from the possible buffer management modes for an input audio stream
2022-05-27 21:48:46 +02:00
5fbd39959c
Implementation of M17 frame decoder
2022-05-27 21:48:46 +02:00
49bd8ee2f4
Reorganised internal structure of M17LinkSetupFrame class, renamed M17Frame to M17StreamFrame and reorganised its structure
2022-05-27 21:48:46 +02:00
c73aa92305
Reorganised M17LinkSetupframe and M17Frame classes, encapsulating structs defining their internal data structure
2022-05-27 21:48:46 +02:00
8f63d349a2
Temporarily deactivating M17 demodulator until fully debugged as it makes the radio crash
2022-05-27 21:48:46 +02:00
7a9bbfcaf2
Demodulator bugfix
...
Fix several bugs in the demodulator code, tipycally sign errors.
2022-05-27 21:48:46 +02:00
1a9b3c4168
Implement M17 demodulator logic
...
Implemented frame wrapping logic and demodulator loop.
2022-05-27 21:48:46 +02:00
963fbdc141
M17 mode handler: calling demodulator update function when in RX mode
2022-05-27 21:48:46 +02:00
d22948a096
Fix naming error
...
Replaced FM with OPMODE_FM and DMR with OPMODE_DMR.
2022-05-27 21:48:46 +02:00
5bf4df75ba
Fine tune demodulator to OpenRTX M17 baseband
...
Fine tuned M17 demodulator with code generated from OpenRTX itself.
TG-81
2022-05-27 21:48:46 +02:00
4b498689f5
Replace RRC filter taps, update M17 testsuite
...
RRC filter taps have been replaced with the ones generated by Wojciech,
a new baseband for the M17 demodulation testsuite has been generated,
using OpenRTX itself and some further minor changes.
TG-81
2022-05-27 21:48:46 +02:00
3163dd49d7
Add M17 demodulator code and tests
...
Added implementation of the M17 4FSK demodulator, including clock
recovery, phase detection, and quantization algorithms.
A testsuite is also included to do regression testing against a
reference baseband pre-generated and the corresponding reference
bitstream.
A 1% BER is still present due to a fault likely in the RRC filtering,
since the eye diagram of the filtered stream is bad.
TG-81
2022-05-27 21:48:46 +02:00
396f66a1f3
Implementation of M17 Viterbi decoder and associated unit test
2022-05-27 21:48:46 +02:00
Silvano Seva
Wojciech Kaczmarski
Jeff Gustafson
Niccolò Izzo
Mathis Schmieder