Posted on May 12, 2016 at 12:08func
HAL_DeInit(); // Reset of all peripherals
does not reset EXTI block,
as it is in HAL_GPIO_DeInit()
/*------------------------- EXTI Mode Configuration --------------------*/
tmp = SYSCFG->EXTICR[position >> 2U];
tmp &= (((uint32_t)0x0FU) << (4U * (position & 0x03U)));
if(tmp == ((uint32_t)(GPIO_GET_INDEX(GPIOx)) << (4U * (position & 0x03U))))
{
/* Configure the External Interrupt or event for the current IO */
tmp = ((uint32_t)0x0FU) << (4U * (position & 0x03U));
SYSCFG->EXTICR[position >> 2U] &= ~tmp;
/* Clear EXTI line configuration */
EXTI->IMR &= ~((uint32_t)iocurrent);
EXTI->EMR &= ~((uint32_t)iocurrent);
/* Clear Rising Falling edge configuration */
EXTI->RTSR &= ~((uint32_t)iocurrent);
EXTI->FTSR &= ~((uint32_t)iocurrent);
}
