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USART Issues after wake up from stop mode

Question asked by bolijn.ronald on Dec 3, 2013
Latest reply on Dec 4, 2013 by Clive One
Hello,

I've succesfully started programming a STM32F0Discoveryboard:
       
  • MCU is running on HSI (8MHz) at runmode.
  •    
  • MCU is going into/outof stopmode every 5 seconds using the RTC running on LSE (32.768kHz)
  •    
  • USART1 is connected to pc (9600 baud)
After initialization (GPIO, USART, RTC) the USART works just fine using the USART_SendData() and USART_ReceiveDate() functions. But the when the MCU is put into stop mode and subsequently wakes up, the USART1 is not longer functioning properly. Weird characters show up in my terminal, so i assume this is a timing error.

I can post the code, but maybe this issue sounds familiar to anyone? Hope you can help!

Thanks,

Ronald

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