Open-Source gs_usb firmware

[romainreignier]

I have ported the candleLight firmware open-source firmware to this device in my fork in case someone is interested.

To build it:

git clone -b add_weactstudio_usb2canfdv1 https://github.com/romainreignier/candleLight_fw.git
cd candleLight_fw
mkdir build
cd build
cmake .. -DCMAKE_TOOLCHAIN_FILE=../cmake/gcc-arm-none-eabi-8-2019-q3-update.cmake
make WeActStudio_USB2CANFDV1_fw

Follow the procedure in the README to clear the flash and then, upload the WeActStudio_USB2CANFDV1_fw.bin file with STM32CubeProgrammer with a SWD probe like a ST-Link V2.

After a first install, the firmware can be updated directly with USB:

make flash-WeActStudio_USB2CANFDV1_fw

[RobBrownNZ]

Thanks for doing this! I was looking at doing it myself so you've saved me several hours, if not more..

[GShabanov]

I have ported the candleLight firmware open-source firmware to this device in my fork in case someone is interested.

To build it:

git clone -b add_weactstudio_usb2canfdv1 https://github.com/romainreignier/candleLight_fw.git
cd candleLight_fw
mkdir build
cd build
cmake .. -DCMAKE_TOOLCHAIN_FILE=../cmake/gcc-arm-none-eabi-8-2019-q3-update.cmake
make WeActStudio_USB2CANFDV1_fw

Follow the procedure in the README to clear the flash and then, upload the WeActStudio_USB2CANFDV1_fw.bin file with STM32CubeProgrammer with a SWD probe like a ST-Link V2.

After a first install, the firmware can be updated directly with USB:

make flash-WeActStudio_USB2CANFDV1_fw

Thank you very much for your contribution!
I tried to assemble the version from WeActStudio, but it's some kind of nonsense! Thanks to your firmware, I brought the device back to life.
The question remains: how can I update via the USB2CANFDV1 firmware upgrade interface? Of course, it's easier for me to rebuild the firmware and upload it via the programmer; this is more of a pure interest.

[romainreignier]

Hi @GShabanov

I have not tried to use the WeActStudio Upgrate Tool mainly because I don't use Windows and not interested in a closed-sources bootloader.
But in theory, it should be possible. The changes needed are described here.
You need to change the linker script, add new C files to the project and call bootloader_init() at the start of main and, the most tricky part I think, call bootloader_enter_update_mode() when you want to enter in bootloader mode.
You should then use the firmware_packager tool to prepare the firmware.
I am not sure it worth it and it might interfere with the DFU system of candleLight so you might need to disable it.

But if you make any progress in this direction, keep us posted.

[GShabanov]

Hi @romainreignier

I understand what you are writing about! However, the firmware that WeActStudio posted is not working. At least it did not work for me. That is, their source code does not even hint at flash memory programming, and there is not a single code that can interact with their GUI product.
The firmware that they position as recovery firmware is a compilation of that sample and nothing more.

Therefore, I thank you again for the fact that your firmware can be assembled and worked with. My question was different. Your firmware exposes 2 interfaces, one of them is for working with candleLight, the second interface is for updating the firmware, on my system it is visible as "USB2CANFDV1 firmware upgrade interface".
Is there a way to update the firmware via this interface?

[romainreignier]

Hi @GShabanov
Indeed, I have misunderstood your question, sorry.
You should use dfu-util as explained in the Readme, see the method for reflashing a specific device by serial section.

[romainreignier]

For information, the CANnectivity project also support the USB2CANFDV1 board.
It is a project based on ZephyrRTOS.

[koendv]

Thank you for your port of socketcan/gs_usb to WeActStudio USB2CANFDV1.
I have extended your port with hardware filters.

• canfilter configuration tool
• WeActStudio USB2CANFDV1 with hardware filter