Bricked py32f003 #67
Description
Hello,
I have a py32f003 (QFN20) that is not responding to serial ISP and cannot be flashed or erased via SWD using pyOCD. I suspect some protection might be enabled. Could someone help me?
Flash attempt:
$ pyocd flash -t py32f003x6 ./Blink.hex
0001198 C Memory transfer fault (read) @ 0x08000000-0x0800001f [__main__]
Erase attempt (it hangs and never finishes):
$ pyocd erase -t py32f003x6 --chip
0001144 I Erasing chip... [eraser]
SWD works: Some commands like reset, reset halt, reg, read32 succeed in commander mode.
Connections MCU<->ST-link V2:
BOOT0 -> 3.3V (also tried GND)
SWDIO -> SWDIO
SWCLK -> SWCLK