利用STM32外部中斷和霍爾傳感器寫的電機測速程序求幫助

ID:539559 · 發表于 2019-7-19 09:22

這是我最近寫的利用32外部中斷和霍爾傳感器寫的電機測速源程序,程序運行錯誤求幫助

#include "exti.h"
#include "stm32f10x.h"
#include "delay.h"
#include "led.h"
#include "sys.h"
u16 k1 = 0;
u8 k2 = 0;
void EXTIX_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
EXTI_InitTypeDef EXTI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; //初始化IO口
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2 | GPIO_Pin_1;
GPIO_Init(GPIOF,&GPIO_InitStructure);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO|RCC_APB2Periph_GPIOF, ENABLE); //開啟IO口復用時鐘
GPIO_EXTILineConfig(GPIO_PortSourceGPIOF,GPIO_PinSource2); // GPIOB2 映射到中斷線2
GPIO_EXTILineConfig(GPIO_PortSourceGPIOF,GPIO_PinSource1); // GPIOB1 映射到中斷線1
EXTI_InitStructure.EXTI_Line = EXTI_Line2; //中斷線2
EXTI_InitStructure.EXTI_LineCmd = ENABLE; //外部中斷使能
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; //模式中斷
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; //下降沿
EXTI_Init(&EXTI_InitStructure); //設定參數初始化外部中斷
EXTI_InitStructure.EXTI_Line = EXTI_Line1; //中斷線1
EXTI_InitStructure.EXTI_LineCmd = ENABLE; //外部中斷使能
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; //模式中斷
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; //下降沿
EXTI_Init(&EXTI_InitStructure); //設定參數初始化外部中斷
NVIC_InitStructure.NVIC_IRQChannel = EXTI2_IRQn; //通道外部中斷2
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //使能
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2; //搶占優先級
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1; //響應優先級
NVIC_Init(&NVIC_InitStructure);
NVIC_InitStructure.NVIC_IRQChannel = EXTI1_IRQn; //通道外部中斷1
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //使能
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2; //搶占優先級
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2; //響應優先級
NVIC_Init(&NVIC_InitStructure);
}
void EXTI2_IRQHandler(void) //外部中斷服務函數
{
// k2++;
// if(k2 >= 13)
// {
// k2 = 0;
k1++;
// }
EXTI_ClearITPendingBit(EXTI_Line2); //清除中斷標志位
}
void EXTI1_IRQHandler(void) //外部中斷服務函數
{
k1 = 0;
EXTI_ClearITPendingBit(EXTI_Line1); //清除中斷標志位
}