ZBM2

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TalkPod A36 Plus Max - OpenRTX Firmware - 20/09/24 00:25

TalkPods Windows Firmware Loader software - No longer needed, see rtxflash

https://github.com/VR2TE/Talkpod-A36plus-Firmware/blob/main/A36plusBootloaderEn.zip

Installation of Prebuilt OpenRTX firmware

https://github.com/VR2TE/Talkpod-A36plus-Firmware/tree/main/A36plus%20MAX/OpenRTX

Automatic update only worked first time. Once OpenRTX is loaded. Hold both side buttons and switch on to enter update firmware mode (white screen). Select file, use manual update.

Install OpenRTX Toolchain

https://openrtx.org/#/compiling?id=linux-toolchain-setup

Not installed Compiling a Zephyr-based target

Build OpenRTX Firmware

git clone --recursive https://github.com/Tunas1337/OpenRTX
cd OpenRTX
git branch -a
git checkout A36Plus
meson setup --cross-file cross_arm_CM4F.txt build_arm/ --wipe
meson compile -C build_arm openrtx_a36plus_bin

Build rtxflash Firmware Loader

git clone --recursive https://github.com/OpenRTX/rtxflash
git checkout a36plus
git submodule update
cargo build

Copy rtxflash to /usr/bin

Build and flash OpenRTX firmware

Retrieve the latest updates.

cd OpenRTX
git pull

Ensure radio is connected and in firmware update mode.

meson compile -C build_arm openrtx_a36plus_bin 
&& ./rtxflash wrap A36Plus build_arm/openrtx_a36plus_bin openrtx.kdhx 
&& ./rtxflash flash A36Plus /dev/ttyUSB0 openrtx.kdhx

Notes

Displays an out of range frequency on startup - Type a valid frequency. Settings and reset to default Not yet supported by the OpenRTX CPS. Supported by Chirp. Supplied USB cable clashing with built in accessibility support. Very strange. Disable it.

sudo systemctl mask brltty-udev.service
sudo systemctl stop brltty-udev.service