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Stop mode and clock configuration at wake up

Question asked by Aurélien f on Dec 28, 2017
Latest reply on May 8, 2018 by buff thokoa

Hello,

 

I'm facing an issue i cannot figure out. I'm currently working on a stm32l073 and using the following RTOS : RIOT-OS. When i wake up from stop mode, UART seems to be desynchronized because wrong characters are displayed. 

I have noticed that when i'm decreasing system clock, AHB clock and ABP clock all is working fine. Am i doing something wrong or do i need to reconfigure clock in the interrupt that is waking up the CPU from stop mode (this a RTC interrupt) ? 

If you have any ideas about this issue, feel free to share your thoughts

Best regards,

 

Aurélien

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