2021-02-04 07:13 AM
Hi
I've set the jtag pins in my code to analog input (non intentionally) .
While I was able to connect to Device (STM32H743) after I managed to erase the flash option bytes (with mass erase) using j-link stm32 tool (No St-Link option or SWD for me on the device), I can not preform chip erase or program (getting ram code error -5)
Any ideas?
Thanks!
2021-02-04 08:35 AM
Try with connect under reset and reset connected. Try other debuggers.
2021-02-05 04:18 AM
Tried that... perhaps changing boot0 pin to pullup and boot to sram would help? how can I boot into the system bootloader?
2021-02-05 06:09 AM
Connect under reset, with reset connected, should work! If it does not work, recheck your setup (Use cable, cables, Connectores, etc). Otherwise a pulse on Reset with Boot0 = 1 should bring you into the bootloader.