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MCU STM32F091VCT6 is in continuous reset mode.

Dubey
Associate

I'm using STM32F091VCT6 controller. I'm tried to BOOT it. MCU does not stand by mode (either low power mode or continuous reset mode). I'm tried by increasing delay on VCC & POR by using 10uf cap of NRST pin also I'm tried weak pull down on BOOT0 pin(47K to 10K register value) also please suggest how I will check exact behave of controller ??

1 ACCEPTED SOLUTION

Accepted Solutions
TDK
Guru

NRST should have a 0.1uF capacitor on it, nothing more. BOOT0 needs pulled down. If you do that, and apply power, the chip will start executing code.

You can always attach a debugger to see where the chip is at.

If you feel a post has answered your question, please click "Accept as Solution".

View solution in original post

2 REPLIES 2
TDK
Guru

NRST should have a 0.1uF capacitor on it, nothing more. BOOT0 needs pulled down. If you do that, and apply power, the chip will start executing code.

You can always attach a debugger to see where the chip is at.

If you feel a post has answered your question, please click "Accept as Solution".
Dubey
Associate

Thanks TDK.