Is it possible to flash a custom application to CPU2 (M0)?

MHarr.4 · ‎2020-06-05

Background: I'd like to add a custom protocol stack on top of 802.15.4 MAC but place it all on CPU2 (M0) and let only the application reside in CPU1 (M4) - just like the pre-compiled binary with Zigbee. Is this possible?

Remi QUINTIN · ‎2020-06-05

Unfortunately, the code expected to be executed by the CPU2 must be encrypted with specific ST key that the FUS (Firmware Update Service) is the only one to manage.

Moreover, the timing constraints required by the management of the RF part are quite hard and we want to avoid any impact on our current FW stack.

View solution in original post

Remi QUINTIN · ‎2020-06-05

Unfortunately, the code expected to be executed by the CPU2 must be encrypted with specific ST key that the FUS (Firmware Update Service) is the only one to manage.

Moreover, the timing constraints required by the management of the RF part are quite hard and we want to avoid any impact on our current FW stack.