Posted on June 29, 2013 at 11:13Hi ,
I have the following initialisation :
//ADXL interrupt port pin
AFIO->EXTICR[0] |= AFIO_EXTICR1_EXTI2_PD;
EXTI->IMR |= EXTI_IMR_MR2;
EXTI->RTSR = EXTI_RTSR_TR2;
NVIC_EnableIRQ(EXTI2_IRQn);
//user alert button PA0 input pulled down by external resistor
AFIO->EXTICR[0] |= AFIO_EXTICR1_EXTI0_PA;
EXTI->IMR |= EXTI_IMR_MR0;
EXTI->RTSR = EXTI_RTSR_TR0;
NVIC_EnableIRQ(EXTI0_IRQn);
If i leave them both the interrupt for ADXL wont trigger . If i comment the pin init for the Button , the adxl interrupt is triggered when signal asserted .
What am i doing wrong ?
I use ST32Discovery board with 32f100 uc
