[STM32C011J6][SO8] Can't connect via Debugger anymore

[Ayoub Cheggari]

Hello All,

I am working on a custom project using STM32C011J6/SO8.

I was trying to use PIN4 as ADC with 3 differents states but once I connect to GND, mcu resets.

 

So now, I have no access to the mcu via Debugger because I set NRST_MODE in Option bytes to : 0x10 only internal RESET is possible.

My questions:

- Is there a way to recover it knowing that I tested and I can't access system memory.

- I am using all the 6 pins (4 ADCs and 2 Outputs). Can I use the PIN4/PA0 as ouput without having reset issues?

I know I can still block the reset by Option bytes but I am not sure if I would need a FW change in the future.

Thanks,

Ayoub

[KDJEM.1]

Hello @Ayoub Cheggari ,

 

I recommend you to look at Why NRST pin as GPIO mode is holding the MCU under reset - STMicroelectronics Community article. This article explains the constraints and potential workaround of using NRST pin in GPIO mode.

I hope this help you.

 

Thank you.

Kaouthar