Hi,
I recently received a STM32-P405 board to develop with, I am using it to develop with open source tools using a Linux Mint environment and OpenOCD for the JTAG debugger. I have written a short guide on how to setup up this environment with some example startup code and GPIO operation.
https://armengineer.com/stm32-p405-deve … vironment/
I hope this can be of use to fellow Linux/OpenOCD users!
Regards,
ArmE