niconiconi on Nostr: I've killed way too many STM32s in my early life. You basically just program the ...

I've killed way too many STM32s in my early life. You basically just program the target as usual, but after power cycling it several times, suddenly every GPIO is shorted to GND. Likely current injection, latch-up, or both. So this time let's try not to kill it again. At the SWD port, 1 kΩ + BAS54 clamps voltage and current to VDD + 0.4 V and 3.3 mA respectively. #electronics