STM32WB05 reboots when advertising starts ; Reposting
Reposting due to last topic vanishing during migration.
I have an project running great on a STM32WB05 nucleo platform. I have built my own custom board and everything works great until it starts to advertise and then it reboots.. I have double checked everything on the board and it matches the reference design. I am using the internal SMPS and running on a bench supply currently at 3.3V limited at 300mA
Looked at a bunch of things but really cant understand the issue. If i stop it advertising (change nothing else) then it starts up perfectly and runs.
Other symptoms/info
Board is drawing 7mA which seems high for idle (no low power mode enabled yet).
I had 4 boards made. One worked briefly on the PSU. I then used a coin cell and it starting failing on that. Now doesnt work on PSU.
Any sensible ideas welcome especially from anyone who has seen this. In many years of BLE development, i havent
