Stlink error

[arun singh]

Posted on November 29, 2017 at 12:27

I have nucleof401re, everything was working fine for past 3 months but suddenly today Keil started giving error in connection. When I checked the storage, there was a text file named FAIL and it showed that interface firmware failed to reset the mcu. I tried google, upgraded the software but nothing seems to work. 

Jumpers are connected as they were since the beginning. 

Any help will be appreciated.

#stm32 #stlink-error #nucleo

[Tesla DeLorean]

Posted on November 29, 2017 at 16:44

Likely errant code reconfiguring debug pins or sleeping the processor. Change to 'connect under reset', or jumper BOOT0 High to prevent the code from running while you replace it.

[arun singh · Accepted solution]

Posted on November 29, 2017 at 18:02

Tried it but even STlink utility is unable to connect to it. I am getting error 'no stlink detected'.