help: is that possible I missed my bootloader?

[ali cheraghinezhad]

Posted on December 31, 2016 at 12:09

Hi, I have erased my nucleo STM32f401re by keil ide, now it doesn't work, also not respond to a simple program like blink or serial port printing hello world, just two red LEDs remain on as soon as power on, is there anybody can help me? is that possible I missed my bootloader?

#thanks-for-your-help-!-! #help. #bootloader-problem #works-in-keil #not-working

[Tesla DeLorean · Accepted solution]

Posted on December 31, 2016 at 17:29

The system loader is in ROM/OTP, it is not something you can erase or corrupt.

If your code has broken the part, then strap BOOT0 high so it boots into the System Loader instead, and erase the part from there.

Download the ST-LINK Utilities, make sure the ST-LINK has current firmware, and erase the part using that.

[ali cheraghinezhad]

Posted on December 31, 2016 at 18:09

Thanks Clive for your kind information, I will try to erase the broken part inside my boot loader by ST_LINK utilities, I will share the result, thank you