BLE fails on STM32WB55 Nucleo board

[saraverbeecke]

I managed once (1 year ago) to get the aioble example to work on a stm32wb55 board. I now got a new STM32WB55 Nucleo board and I get tl_ble_wait_resp: timeout. and no other debug info. It has somethin to do with the RFcore, but I have no clue where to start...

There are some rfcore related files in the repo... Can anyone explain what I have to do with the following files in the Micropython repo directory of the STM32WB55 Nucleo:

• rfcore_debug.py
• rfcore_firmware.py
• rfcore_makefirmware.py

Thanks!

[andrewleech]

It's been reported that the latest WS radio firmware from ST breaks compatibility with micropython, for details see https://github.com/orgs/micropython/discussions/15522

The rfcore_makefirmware.py script is intended to convert the radio firmware files provided by ST into a format that can be loaded onto the WB55 while running micropython, after which rfcore_firmware.py can be used to flash the radio firmware (FUS & WS).

[saraverbeecke]

Does the rfcore_makefirmware.py work when using the older 1.13 version from ST?

[andrewleech]

Yes it should, that's likely the last version it was really tested with

[saraverbeecke]

I just used the v1.13 release and I can confirm it works. Thanks!