2025-02-05 12:00 PM
Using an STLINK-V3PWR, I can connect to the device in Normal, Under Reset, and hwRstPulse modes, but when I select Hot plug mode, I get an error "No STM32 target found." I've been tasked with trying to connect to this board without resetting it, but am at a loss about where to start with troubleshooting. I've tried changing various other configuration settings, but have not found anything that will allow hot plug connection.
2025-02-05 01:31 PM - edited 2025-02-05 01:56 PM
make sure that the firmware leaves the SWD debug pins configured in SWD AF mode (which is the HW default).
Also, entering low-power modes may cause issues, see DBG_CR register.
hth
KnarfB