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khouja_houssem
khouja_houssem
Associate III
April 9, 2013
Question

DISABLE/ENABLE EXTI interrupt

  • April 9, 2013
  • 1 reply
  • 499 views
Posted on April 09, 2013 at 15:34

I need to DISABLE EXTI interrupt inside EXTI_IRQ_Handler and re-ENABLE it later through my code. Is there a way to do that?

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    1 reply

    Tesla DeLorean
    Tesla DeLorean
    Guru
    April 9, 2013
    Posted on April 09, 2013 at 15:45

    Disabling, using parameters per Init routine 

    uint32_t tmp = (uint32_t)EXTI_BASE;
tmp += EXTI_InitStruct->EXTI_Mode; // Nominally EXTI_Mode_Interrupt;
/* Disable the selected external lines */
*(__IO uint32_t *) tmp &= ~EXTI_InitStruct->EXTI_Line; // EXTI_LineX

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