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STM32F030K6 start only with reset tie to VCC

Question asked by Krzyzaniak.Piotr on May 3, 2017
Latest reply on May 5, 2017 by Krzyzaniak.Piotr

I have device with STM32f030K6T6. Since one moment, I am not able to start this uP without shorcircuiting nReset signal to VCC. Originally I had RC circuit on this line. When this problem had occured I modified it removing resistor (leaving capacitor connected between nReset and GND). Still doesn't work. Currently I'm running very simple program with for(;;) loop.

 

Main question is: what kind of setting may cause that? At some point I was using settings in ST-Link with "Program under reset", but now I change that to "normal & autodetect" but behavior is still the same.

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