Problems Erasing STLink IC on a Nucleo board

[Dega]

Hello,

I have a Nucleo-L432KC with a dead microcontroller, but the STLink IC is ok.

I wanted to use the STM32F103 to develop some USB code, so I removed the broken L432 and populated the reprogramming header for the SWD, CN2.

I connected there a STLINK-MINIE to erase it, but CubeIDEProgrammer cannot read back anything.

At the first connection I was able to erase it (maybe just partially?), because now it is not recognized anymore as ST_Link device and the LED has only a faint red color.

I also connected the reset to the STLINK-MINIE and tied the BOOT0 to 3.3V.

Is there anything else I can try to fully erase and then re-program the F103?

 

Thanks,

Marco

  

[Dega]

Oh… Silly me: I just had to clear the read out protection flag!

After that, it’s all good!