请教一下 我用的STM32F103VE 定时器一直中断

zzy8570860

注释有点乱码 应该是没有错误 
但是两个定时器 TIM4 TIM2 一启动计时 SR寄存器里面的比较输出和更新中断标志就都置1
即使我中断没有开 没有设置中断使能 启动之前也清空了标志位 
只要一启动定时器就全部置一 很急 在线等着
望大神指教啊







// Header: VGA_Sim

// File Name: VGA_Sim.h

// Author: zzy

// Date: 2013-12-3

#include "VGA_Sim.h"

#include "stm32f10x_tim.h"

#include "stm32f10x_rcc.h"

void Timer_NVIC_Configuration(void)

{

    NVIC_InitTypeDef NVIC_InitStructure; 

    

    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);   //??????×é

    NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;   //?ò??

    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1; //??????????

    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; //?ì????????

    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;

    NVIC_Init(&NVIC_InitStructure);

    NVIC_InitStructure.NVIC_IRQChannel = TIM4_IRQn;   //?ò??

    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; //??????????

    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; //?ì????????

    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;

    NVIC_Init(&NVIC_InitStructure);

}

void VGA_H_Timer_Init(void)

{

//Timer ?è??

TIM_TimeBaseInitTypeDef H_Timer_Init;

TIM_OCInitTypeDef H_SYNC;

TIM_OCInitTypeDef H_Active;

TIM_OCInitTypeDef H_F_Porch;

/**************************?????±?÷?è??********************/

H_Timer_Init.TIM_ClockDivision = TIM_CKD_DIV1;//2·??? 

H_Timer_Init.TIM_CounterMode = TIM_CounterMode_Up;

H_Timer_Init.TIM_Period = H_Period_T;

H_Timer_Init.TIM_Prescaler = 1;

TIM_TimeBaseInit(H_Timer , &H_Timer_Init );

TIM_ClearFlag(H_Timer,TIM_IT_Update); 

/**************************?????±?÷?è?? ???????·********************/

H_SYNC.TIM_OCMode = TIM_OCMode_PWM1;    

H_SYNC.TIM_OutputState = TIM_OutputState_Enable;

H_SYNC.TIM_Pulse = H_B_Porch_T ;  

H_SYNC.TIM_OCPolarity = TIM_OCPolarity_High; 

TIM_OC4Init(H_Timer,&H_SYNC);

TIM_OC4PreloadConfig(H_Timer, TIM_OCPreload_Enable);

/**************************?????±?÷?è?? ?????á??********************/

H_Active.TIM_OCMode = TIM_OCMode_Timing;    

H_Active.TIM_Pulse = H_Active_T ;  

TIM_OC1Init(H_Timer,&H_Active);

TIM_ClearFlag(H_Timer,TIM_IT_CC1); 

TIM_OC1PreloadConfig(H_Timer, TIM_OCPreload_Enable);

/**************************?????±?÷?è?? ????????********************/

H_F_Porch.TIM_OCMode = TIM_OCMode_Timing;    

H_F_Porch.TIM_Pulse = H_F_Porch_T ;  

TIM_OC2Init(H_Timer,&H_F_Porch);

TIM_ClearFlag(H_Timer,TIM_IT_CC2); 

TIM_OC2PreloadConfig(H_Timer, TIM_OCPreload_Enable);

TIM_ARRPreloadConfig(H_Timer , ENABLE);

    

         

}

void VGA_V_Timer_Init(void)

{

//Timer ?è??

TIM_TimeBaseInitTypeDef V_Timer_Init;

TIM_OCInitTypeDef V_SYNC;

TIM_OCInitTypeDef V_Active;

TIM_OCInitTypeDef V_F_Porch;

V_Timer_Init.TIM_ClockDivision = TIM_CKD_DIV1;//1·???

V_Timer_Init.TIM_CounterMode = TIM_CounterMode_Up;

V_Timer_Init.TIM_Period = V_Period_T ;

V_Timer_Init.TIM_Prescaler = H_Period_T*2+1 ;//??????1055·??? ??????

TIM_TimeBaseInit(V_Timer , &V_Timer_Init );

TIM_ClearFlag(V_Timer,TIM_IT_Update);

V_SYNC.TIM_OCMode = TIM_OCMode_PWM1;    

V_SYNC.TIM_OutputState = TIM_OutputState_Enable;

V_SYNC.TIM_Pulse = V_B_Porch_T ;  

V_SYNC.TIM_OCPolarity = TIM_OCPolarity_High; 

TIM_OC4Init(V_Timer,&V_SYNC);

TIM_OC4PreloadConfig(V_Timer, TIM_OCPreload_Enable);

V_Active.TIM_OCMode = TIM_OCMode_Timing;    

V_Active.TIM_Pulse = V_Active_T ;  

TIM_OC1Init(V_Timer,&V_Active);

//TIM_OC1PreloadConfig(V_Timer, TIM_OCPreload_Enable);

TIM_ClearFlag(V_Timer,TIM_IT_CC1); 

TIM_ITConfig(V_Timer,TIM_IT_CC1,ENABLE);

V_F_Porch.TIM_OCMode = TIM_OCMode_Timing;    

V_F_Porch.TIM_Pulse = V_F_Porch_T ;  

TIM_OC2Init(V_Timer,&V_F_Porch);

//TIM_OC2PreloadConfig(V_Timer, TIM_OCPreload_Enable);

TIM_ClearFlag(V_Timer,TIM_IT_CC2); 

TIM_ITConfig(V_Timer,TIM_IT_CC2,ENABLE);

TIM_ARRPreloadConfig(V_Timer , ENABLE);

               

}

void VGA_GPIO_Init(void)

{

GPIO_InitTypeDef GPIO_InitStructure;

RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2 | RCC_APB1Periph_TIM4, ENABLE); 

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_AFIO, ENABLE); 

GPIO_AFIODeInit(); 

GPIO_PinRemapConfig(GPIO_FullRemap_TIM2,ENABLE );//??????T2C4??????????

GPIO_InitStructure.GPIO_Pin =  GPIO_Pin_9 | GPIO_Pin_11 | GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15;

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;  

GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

GPIO_Init(GPIOB, &GPIO_InitStructure);

GPIO_InitStructure.GPIO_Pin =  GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15;

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;  

GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

GPIO_Init(GPIOB, &GPIO_InitStructure);

GPIO_ResetBits (GPIOB,GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15);

}

void VGA_Sim_Init(void)

{

VGA_GPIO_Init();

//Timer_NVIC_Configuration();

VGA_H_Timer_Init();

VGA_V_Timer_Init();

TIM_Cmd(H_Timer , ENABLE);                   

TIM_Cmd(V_Timer , ENABLE);  

}

void TIM2_IRQHandler(void)

{

if(TIM_GetITStatus(H_Timer,TIM_IT_CC1) != RESET)

{

TIM_ClearITPendingBit(H_Timer,TIM_IT_CC1);

}

else if(TIM_GetITStatus(H_Timer,TIM_IT_CC2) != RESET)

{

TIM_ClearITPendingBit(H_Timer,TIM_IT_CC2);

}

}

void TIM4_IRQHandler(void)

{

if(TIM_GetITStatus(V_Timer,TIM_IT_CC1) != RESET)

{

TIM_ClearITPendingBit(V_Timer,TIM_IT_CC1);

TIM_ClearFlag(H_Timer,TIM_IT_CC1); 

TIM_ITConfig(H_Timer,TIM_IT_CC1,ENABLE);

TIM_ClearFlag(H_Timer,TIM_IT_CC2); 

TIM_ITConfig(H_Timer,TIM_IT_CC2,ENABLE);

}

else if(TIM_GetITStatus(V_Timer,TIM_IT_CC2) != RESET)

{

TIM_ClearITPendingBit(V_Timer,TIM_IT_CC2);

TIM_ClearFlag(H_Timer,TIM_IT_CC1); 

TIM_ITConfig(H_Timer,TIM_IT_CC1,DISABLE);

TIM_ClearFlag(H_Timer,TIM_IT_CC2); 

TIM_ITConfig(H_Timer,TIM_IT_CC2,DISABLE);

}

}

正点原子

参考下我们的例程先吧。