MCU STM32F091VCT6 is in continuous reset mode.

[Dubey]

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 ??

[TDK · Accepted solution]

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.

[Dubey]

Thanks TDK.