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System reboot without NRST low

Question asked by Peter Rabold on Feb 27, 2018
Latest reply on Feb 27, 2018 by dhenry

 

I'm using an STM32L152 with IAR embedded workbench.
This MCU has an external reset pin (NRST) which is bidirectional. The MCU outputs a low signal if its reset system detects a watchdog reset, software reset or low-power management reset. With other words: If I reboot the system using HAL_NVIC_SystemReset() the NRST pin is taken low.

 

Question: How can I reboot the system by software without signalling it at the NRST pin? Can I inhibit the NRST output pin or is there a way to call the reset vector to reboot?

 

Thanks for your support.

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