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vitthal muddapur
Associate III
April 11, 2018
Question

UART intrrupt

  • April 11, 2018
  • 1 reply
  • 1419 views
Posted on April 11, 2018 at 08:24

Hi,

New in STM32. I have Enabled only UART Receiver interrupt it's working fine 

but some time continuously execute ISR without incoming data and Disable OVERRUN. 

Thanks and Regards 

vitthal

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    1 reply

    Tesla DeLorean
    Guru
    April 11, 2018
    Posted on April 11, 2018 at 08:35

    Check for other ISR bits or error status being flagged.

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    vitthal muddapur
    Associate III
    April 11, 2018
    Posted on April 11, 2018 at 08:40

    I have Disable All Error flags intrrupt

    AvaTar
    Senior III
    April 11, 2018
    Posted on April 11, 2018 at 08:48

    Check the error flags INSIDE the interrupt handler.

    And NEVER spend more time in the handler than the transmission of a byte takes.