O! Widzę, że chłopaki poradziliście sobie z przejściem przerwania zewnętrznego na F4. Pomożecie? Co robię źle, że nie działa ono jak powinno?
#include "stm32f4xx.h"
//#include "stm32f4xx_exti.h"
//#include "stm32f4xx_syscfg.h"
//#include "misc.h"
void Configure_LED(){
/*Set variables used*/
GPIO_InitTypeDef gpio;
/*Enable clock for GPIOA*/
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
/*Set pin as output*/
GPIO_StructInit(&gpio);
gpio.GPIO_Pin = GPIO_Pin_5;
gpio.GPIO_Mode = GPIO_Mode_OUT;
gpio.GPIO_OType = GPIO_OType_PP;
GPIO_Init(GPIOA, &gpio);
}
void Configure_PC13(void) {
/* Set variables used */
GPIO_InitTypeDef GPIO_InitStruct;
EXTI_InitTypeDef EXTI_InitStruct;
NVIC_InitTypeDef NVIC_InitStruct;
/* Enable clock for GPIOC */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC, ENABLE);
/* Enable clock for SYSCFG */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
/* Set pin as input */
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_13;
GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_Init(GPIOC, &GPIO_InitStruct);
/* Tell system that you will use PC13 for EXTI_Line13 */
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOC, EXTI_PinSource13);
/* PC13 is connected to EXTI_Line13 */
EXTI_InitStruct.EXTI_Line = EXTI_Line13;
/* Enable interrupt */
EXTI_InitStruct.EXTI_LineCmd = ENABLE;
/* Interrupt mode */
EXTI_InitStruct.EXTI_Mode = EXTI_Mode_Interrupt;
/* Triggers on rising and falling edge */
EXTI_InitStruct.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
/* Add to EXTI */
EXTI_Init(&EXTI_InitStruct);
/* Add IRQ vector to NVIC */
/* PC13 is connected to EXTI_Line13, which has EXTI15_10_IRQn vector */
NVIC_InitStruct.NVIC_IRQChannel = EXTI15_10_IRQn;
/* Set priority */
NVIC_InitStruct.NVIC_IRQChannelPreemptionPriority = 0x00;
/* Set sub priority */
NVIC_InitStruct.NVIC_IRQChannelSubPriority = 0x01;
/* Enable interrupt */
NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE;
/* Add to NVIC */
NVIC_Init(&NVIC_InitStruct);
}
/* Set interrupt handlers */
/* Handle PC13 interrupt */
void EXTI15_10_IRQHandler(void) {
/* Make sure that interrupt flag is set */
if (EXTI_GetITStatus(EXTI_Line13) != RESET) {
/* Do your stuff when PC13 is changed */
GPIO_ResetBits(GPIOA, GPIO_Pin_5); // turn LED off
/* Clear interrupt flag */
EXTI_ClearITPendingBit(EXTI_Line13);
}
}
int main(void) {
/* System init */
SystemInit();
/*Configure LED on PA5*/
Configure_LED();
/* Configure PC13 as interrupt */
Configure_PC13();
GPIO_SetBits(GPIOA, GPIO_Pin_5); // turn LED on
while (1) {
}
}