TIM2各通道实现输出比较模式

910200850

 #include "stm32f10x.h"
#include "stdio.h"
#include "stm32f10x_it.h"
#include "stm32f10x_tim.h"
NVIC_InitTypeDef NVIC_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
EXTI_InitTypeDef EXTI_InitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
void RCC_Configuration(void);
void NVIC_Configuration(void); 
void GPIO_Configuration(void);
void TIM_Configuration(void);
//void USART_Configuration(void);
void delay(vu32 ncount);
vu16 CCR1_Val=0x8000;
vu16 CCR2_Val=0x4000;
vu16 CCR3_Val=0x2000;
vu16 CCR4_Val=0x1000;
int main()
{ 
RCC_Configuration();
GPIO_Configuration();
NVIC_Configuration();
TIM_Configuration();
TIM_Cmd(TIM2,ENABLE);  
TIM_ITConfig(TIM2,TIM_IT_CC1|TIM_IT_CC2|TIM_IT_CC3|TIM_IT_CC4,ENABLE);
 while(1)
 { 
 
 }
 
}

void RCC_Configuration(void)
{
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2,ENABLE);
}

void NVIC_Configuration(void)
{ 

#ifdef VETB_TAB_RAM 

NVYC_SetVectorTable(NVIC_VectTab_RAM,0x0);
#else 

NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);

#endif

   NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;   //使能按键所在的外部中断通道
   NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; //抢占优先级2，
   NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;     //子优先级1
   NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;        //使能外部中断通道
   NVIC_Init(&NVIC_InitStructure);

}
void GPIO_Configuration(void)
{ 
 
 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3;     //LED0-->A.8 端口配置
 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;    //推挽输出
 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
 GPIO_Init(GPIOA, &GPIO_InitStructure);
  
}

 
 
void TIM_Configuration(void)
{
 
 TIM_TimeBaseInitStructure.TIM_Period=0xffff;
 TIM_TimeBaseInitStructure.TIM_Prescaler=0x02;
 TIM_TimeBaseInitStructure.TIM_ClockDivision=0x0;
 TIM_TimeBaseInitStructure.TIM_CounterMode=TIM_CounterMode_Up;
 TIM_TimeBaseInit(TIM2,&TIM_TimeBaseInitStructure);

TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Toggle;
TIM_OCInitStructure.TIM_Channel = TIM_Channel_1;
TIM_OCInitStructure.TIM_Pulse = CCR1_Val;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; 
TIM_OC1Init(TIM2,&TIM_OCInitStructure);
TIM_OC1PreloadConfig(TIM2, TIM_OCPreload_Disable);

TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Toggle;
TIM_OCInitStructure.TIM_Channel = TIM_Channel_2;
TIM_OCInitStructure.TIM_Pulse = CCR2_Val;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; 
TIM_OC2Init(TIM2,&TIM_OCInitStructure);
TIM_OC2PreloadConfig(TIM2, TIM_OCPreload_Disable);

 

TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Toggle;
TIM_OCInitStructure.TIM_Channel = TIM_Channel_3;
TIM_OCInitStructure.TIM_Pulse = CCR3_Val;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; 
TIM_OC3Init(TIM2,&TIM_OCInitStructure);
TIM_OC3PreloadConfig(TIM2, TIM_OCPreload_Disable);

 

TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Toggle;
TIM_OCInitStructure.TIM_Channel = TIM_Channel_4;
TIM_OCInitStructure.TIM_Pulse = CCR4_Val;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; 
TIM_OC4Init(TIM2,&TIM_OCInitStructure);
TIM_OC4PreloadConfig(TIM2, TIM_OCPreload_Disable);

}



///#include "stm32f10x_it.c"
void TIM2_IRQHandler(void)
{
 if(TIM_GetITStatus(TIM2, TIM_IT_CC1) != RESET)
 {
    TIM_ClearITPendingBit(TIM2, TIM_IT_CC1);
    capture1 = TIM_GetCapture1(TIM2);
    TIM_SetCompare1(TIM2,  capture1+CCR1_Val);
 }

  if(TIM_GetITStatus(TIM2, TIM_IT_CC2) != RESET)
 {
    TIM_ClearITPendingBit(TIM2, TIM_IT_CC2);
    capture2 = TIM_GetCapture2(TIM2);
    TIM_SetCompare2(TIM2,  capture1+CCR2_Val);
 }

        if(TIM_GetITStatus(TIM2, TIM_IT_CC3)!= RESET)
 {
    TIM_ClearITPendingBit(TIM2, TIM_IT_CC3);
    capture3 = TIM_GetCapture1(TIM2);
    TIM_SetCompare3(TIM2,  capture3+CCR3_Val);
 }

  if(TIM_GetITStatus(TIM2, TIM_IT_CC4) != RESET)
 {
    TIM_ClearITPendingBit(TIM2, TIM_IT_CC4);
    capture4 = TIM_GetCapture4(TIM2);
    TIM_SetCompare4(TIM2,  capture1+CCR4_Val);
 }

}

1501697860

顶啊