Commit Graph

520 Commits

Author SHA1 Message Date
Silvano Seva 25087b0e02 Removed BUF_CIRC from the possible buffer management modes for an input audio stream 2022-05-27 21:48:46 +02:00
Silvano Seva 5fbd39959c Implementation of M17 frame decoder 2022-05-27 21:48:46 +02:00
Silvano Seva 49bd8ee2f4 Reorganised internal structure of M17LinkSetupFrame class, renamed M17Frame to M17StreamFrame and reorganised its structure 2022-05-27 21:48:46 +02:00
Silvano Seva c73aa92305 Reorganised M17LinkSetupframe and M17Frame classes, encapsulating structs defining their internal data structure 2022-05-27 21:48:46 +02:00
Silvano Seva 8f63d349a2 Temporarily deactivating M17 demodulator until fully debugged as it makes the radio crash 2022-05-27 21:48:46 +02:00
Niccolò Izzo 7a9bbfcaf2 Demodulator bugfix
Fix several bugs in the demodulator code, tipycally sign errors.
2022-05-27 21:48:46 +02:00
Niccolò Izzo 1a9b3c4168 Implement M17 demodulator logic
Implemented frame wrapping logic and demodulator loop.
2022-05-27 21:48:46 +02:00
Silvano Seva 963fbdc141 M17 mode handler: calling demodulator update function when in RX mode 2022-05-27 21:48:46 +02:00
Niccolò Izzo d22948a096 Fix naming error
Replaced FM with OPMODE_FM and DMR with OPMODE_DMR.
2022-05-27 21:48:46 +02:00
Niccolò Izzo 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
Niccolò Izzo 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
Niccolò Izzo 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
Silvano Seva 396f66a1f3 Implementation of M17 Viterbi decoder and associated unit test 2022-05-27 21:48:46 +02:00
Niccolò Izzo 3aeade6c1f Clarify M17 modulator constant naming
Further clarify modulator constant naming for sample rate and frame
lengths, to distinguish between demodulator values.
2022-05-27 21:48:46 +02:00
Niccolò Izzo 6588a6718e Add M17 namespace in M17 related source files
Now M17 source files reside in the M17 namespace, the OPMODE_ prefix
was added to all opmode enums to avoid a name clash.
2022-05-27 21:48:46 +02:00
Niccolò Izzo 876cb87d57 Move rrc filter into separate compilation unit
By moving the rrc filter into a separate compilation unit with its own
header file, we can use it both in the modulator and in the demodulator.
2022-05-27 21:48:46 +02:00
Niccolò Izzo c648ffe377 Add draft of M17Demodulator class 2022-05-27 21:48:46 +02:00
Silvano Seva 8a3643ad3a Implementation of Golay(24,12) decoder, reimplemented Golay(24,12) encoder using generator matrix, unit test for Golay(24,12) encoding and decoding routines 2022-05-27 21:48:46 +02:00
Silvano Seva a3b7b490d4 Fixed jitter in M17 baseband signal generation 2022-05-27 21:48:46 +02:00
Silvano Seva 5ffd6e5c43 Fixed compilation errors with MD-9600 and Module 17 targets 2022-03-24 19:09:00 +01:00
Silvano Seva ab3d148449 Implemented activation of external flash backup and restore via menu entries 2022-03-22 15:10:52 +01:00
Silvano Seva a1c26b2898 Simple utility functions for backup and restore of external flash memory content 2022-03-22 13:39:08 +01:00
Silvano Seva f513454acf Implementation of xmodem data reception 2022-03-21 17:36:27 +01:00
Niccolò Izzo 48824accb9 Add flash backup and restore menu
Add flash backup and flash restore entries to menu system, to access
these functionalities from the radio itself.

TG-428
2022-03-13 00:21:52 +01:00
Silvano Seva 7e3131d9d1 Implemented xmodem data sending 2022-03-12 23:32:31 +01:00
Silvano Seva e56cf52f28 Partial implementation of xmodem protocol: function for transmission of xmodem packets and small testsuite for dumping the content of external flash memory via xmodem 2022-03-11 19:28:45 +01:00
Silvano Seva 052580df3a Implementation of CCITT CRC16 2022-03-05 11:08:31 +01:00
Silvano Seva 3588f351a1 Created 'core' subfolders inside openrtx/include and openrtx/src containing main OpenRTX source files 2022-03-05 10:39:35 +01:00
Silvano Seva 3f2df608c9 Moved code for radio state update to a dedicated function 2022-02-27 09:00:49 +01:00
Silvano Seva a5209d6f52 Modified range for display backlight level from 0 - 255 to 0 - 100, set minimum allowed level to 5. 2022-02-26 15:45:41 +01:00
tarxvf 9297c08b05
Add a menu for clearing settings and vfo to sane defaults (#67) 2022-02-26 12:42:28 +01:00
Silvano Seva f54a0d18a7 Implemented mechanism to allow backwards-compatibility when loading settings from memory, as backlight timer introduced a new data field 2022-01-03 15:42:16 +01:00
Alessio Caiazza d04180c0df Rename brightness_timer into display_timenr 2022-01-03 14:51:22 +01:00
Alessio Caiazza 351cab1f44 Don't waste extra memory for the brightness timer 2022-01-03 14:51:22 +01:00
Alessio Caiazza d742d027b7 Display timer UI 2022-01-03 14:51:22 +01:00
Alessio Caiazza 269420c2be Load standby timer from settings 2022-01-03 14:51:22 +01:00
Alessio Caiazza fefe2f6de0 Exit standby when the squelch is open 2022-01-03 14:51:22 +01:00
Alessio Caiazza ade9c47f71 Implement platform_setBacklightLevel for linux 2022-01-03 14:51:22 +01:00
Alessio Caiazza 6e3fda2a70 PTT terminates standby
Also the keypress getting out of standby is ignored unless is the MONI
key to activate the MACRO menu
2022-01-03 14:51:22 +01:00
Alessio Caiazza f9751c9867 Send the screen in standby after 30s idle 2022-01-03 14:51:22 +01:00
Alessio Caiazza 78a2b02c91 Show TX frequency during transmission 2021-12-23 14:52:25 +01:00
Alessio Caiazza 91486291b6 MD380: adjust squelch with left and right keys 2021-12-23 14:52:25 +01:00
Silvano Seva 3c6ad9802c Added API function allowing to query the current status of the RX audio squelch 2021-12-23 14:52:25 +01:00
Alessio Caiazza 18fb916834 Remove all tabs 2021-12-23 14:52:25 +01:00
Alessio Caiazza e2baf5a833 Document functions with Doxygen format 2021-12-23 14:52:25 +01:00
Alessio Caiazza 8a0f0564b9 Ensure proper finalization is done in emulator mode 2021-12-23 14:52:25 +01:00
Alessio Caiazza 82699f3d07 Implement an SDL main loop inside the Main Thread 2021-12-23 14:52:25 +01:00
Alessio Caiazza 51acccaec2 Don't pump SDL events outside from the main thread 2021-12-23 14:52:25 +01:00
tarxvf e7c98aa71f fixes #60 (make sure volume setting is restored after tx) 2021-12-23 14:52:25 +01:00
Alessio Caiazza 5605797816 Never store a brightness level of 0
Enforce a minimum brightness level to prevent booting with a black screen

Related to https://github.com/OpenRTX/OpenRTX/issues/50
2021-12-23 14:52:25 +01:00