OpenRTX

Added

• gfx: support for on-screen QR code generation
• M17: metadata text transmission and reception
• M17: packet transmission and reception
• NVM: driver for STM32 internal flash
• platform: API for vibration motor control
• codec2: noise reduction of mic input via oversampling
• test: use gcovr and catch2 for unit tests
• ui: increases power level granularity
• AGENTS.md with project guidelines for AI agents
• CHANGELOG.rst

Changed

• core: optimized FIR filter implementation
• build: rename "build_arm" file to "build_cm4"
• NVM: reorganized API and data structures
• M17: optimized CRC calculation routine
• CS7000 Plus: use VOX input for microphone input level
• Adopt SPDX-compliant header

Fixed

• audio: runtime bugs in Linux file_source module
• audio: clipping in HR_Cx000 "beep" tone generator
• gpio_stm32: fix OPEN_DRAIN_PU setup mode
• ui: missing bound checking in repeater offset input
• ui: wraparound on repeater offset entry

Thanks to

• Jetse PA1JET
• Joshua VO1RFX
• Marco DM4RCO
• Morgan ON4MOD
• Ryan K0RET
• Ryan N2BP
• Roman VA1FOX
• Wojciech SP5WWP

• Major improvements of M17 demodulator code, fixing long-standing issues
• Added transmission of GNSS metadata in M17 voice streams
• Updated voice prompts

Thanks to:

• Jim N1ADJ
• Ryan K0RET
• Rick KD0OSS
• Wojciech SP5WWP

• Cleanup and update of platform tests
• General refactoring of GPS drivers
• Enabled GPS on CS7000-M17 Plus
• Started transitioning to new coding style
• Replaced bin2sgl binary tool with a python script
• Added FM settings menu
• Improved DC block filter implementation
• Made settings entry for RTC sync with GPS persistent across reboots
• Updated voice prompts data

Thanks to:

• Grzegorz SP6HFE
• Imostlylurk
• JKI757
• Marco DM4RCO
• Peter OE5BPA
• Ryan K0RET
• Tarandeep VA1FOX

Technical release solving display issues with new CS7000-M17 and CS7000-M17 Plus hardware.

• Fixed bug in MD-UV3x0 audio volume management
• Fixed broken 1750Hz tone in MD-3x0
• Improved computation of battery state of charge
• Added 1750Hz tone to CS7000-M17 and CS7000-M17 Plus
• Added Dockerfile, devcontainer and vscode tasks for all targets

Thanks to:

• Marco DM4RCO
• Morgan ON4MOD
• Peter OE5BPA

• Refactored and reorganized MCU peripheral drivers
• Refactored and reorganized NVM drivers
• Using HR_C6000 as audio DAC on MD-UV3x0 devices
• Added support for Connect Systems CS7000-M17
• Added support for Connect Systems CS7000-M17 Plus
• Added support for Baofeng DM-1701

Thanks to:

• Alain
• Grzegorz SP6HFE
• Jim Ancona
• Lemielek
• Marco DM4RCO
• Marc HB9SSB
• Morgan ON4MOD
• Trriss
• Wojciech SP5WWP

• Fixed bug in AT1846S driver causing the output frequency to have an effective resolution of 1kHz instead of 62.5Hz.
• Made M17 destination callsign persistent across reboots
• Reorganized the nonvolatile memory interface
• Fixed missing transmission of the 1750Hz tone when keypad is locked
• M17: added callsign-based squelch for incoming transmissions
• Deeply restructured the M17 modulator, fixing the lock stability issues
• General code refactoring to reduce the size of the final binary images
• Removed usage of float from core sources
• Added string table for spanish language
• Added support for Module17 hardware revision 1.0

Thanks to:

• Derecho
• Edgetriggered
• Juan LW7EMN
• Marco DM4RCO
• Morgan ON4MOD
• Ryan Turner

Update 18/07/2024: re-uploaded the binaries for MD-380 and MD-UV380 to fix a bug in the gpio driver causing the transmission to be out of frequency by ~2kHz.

• M17: implemented transmission of the EOT frame before closing a transmission.
• M17: showing stream info on screen during reception.
• M17: implemented check for CAN match in RX.
• Set up a dedicated UI for Module17.
• Added support for Module17 hardware revision 0.1e.
• Reorganized the audio path and audio stream subsystem.
• Corrected the conversion law for volume level in MDx devices.
• Added transmission of 1750Hz squelch tone to MDx and GDx.
• Added icons to UI.
• Added screen lock to radio UI.
• Support for a new target: Lilygo TTWR-plus.
• Bugfix and improvements.

Thanks to:

• Antonio Vasquez Blanco
• Edgetriggered
• Jason K5JAE
• Joshua DC7IA
• Marco DM4RCO
• Mathis DB9MAT
• Mike "tarxvf" W2FBI
• Ryan Turner
• Wojciech SP5WWP

Intermediate release bringing voice prompts for vision impaired hams on MD-3x0, MD-UV3x0 and Linux targets. Thanks to Joe Stephen VK7JS for the development.

Intermediate technical release carrying bugfixes and improvements.

• Implemented the new OpenRTX CPS data format.
• Reorganized and reduced the firmware threads.
• Improved squelch mechanism for M17 mode to avoid random speaker activations in absence of an RF carrier.
• Fixed the oscillation of RF carrier at the first transmission after boot, thanks to Jacob KI5VMF.
• Fixed RX tone squelch bug on MD-UV380.
• Changed UI font from Free Sans to Ubuntu Regular, thanks to edgetriggered.
• Fixed various memory leaks.
• Reorganized linux emulator code.
• Moved to statically allocated framebuffer.
• Implemented linux input stream driver, thanks to Alain.

• Experimental support for M17 digital radio protocol, with thanks to Wojciech Kaczmarski SP5WWP and all the community.

  • Functional TX and RX of audio on MD-3x0 UHF devices.
  • Functional RX of audio on MD-3x0 VHF devices.
  • Functional TX and RX of audio on MD-UV3x0 devices.

• Support for a new target, Module 17, thanks to Mathis Schmieder DB9MAT.

• Persistence of user settings at power-off on MD-3x0 and MD-UV3x0.

• Build file and code adaptations to allow compilation and running of the emulator under Mac OS X, thanks to Alessio Caiazza IU5BON.

• Automatic screen power-off with user-configurable timeout, thanks to Alessio Caiazza IU5BON.

• Menu entry allowing to reset user settings to their default state, thanks to Mike McGinty W2FBI.

• Experimental backup and restore of external flash via xmodem on MD-3x0 and MD-UV3x0.

• Various bug fixes and improvements.