sam2chen 发表于 2017-11-23 15:10:48

TIM1slaveTIM3，TIM3使用pwm比较模式，却无法进入中断忘大佬解答

#include "timer.h"
#include "stm32f10x.h"

extern u16 ccr1;


void TIM3_IRQHandler(void)   //TIM3ÖжÏ
{
        if (TIM_GetITStatus(TIM3, TIM_IT_CC1) != RESET) //¼ì²éÖ¸¶¨µÄTIMÖжϷ¢ÉúÓë·ñ:TIM ÖжÏÔ´
                {
                TIM_ClearITPendingBit(TIM3, TIM_IT_CC1);//Çå³ýTIMxµÄÖжϴý´¦Àíλ:TIM ÖжÏÔ´
                        if(ccr1<5000)
                        {
                                ccr1=ccr1+500;
                               
                        }
                        else ccr1=999;
                               
                        TIM_SetCompare1(TIM3,ccr1);
                       
        }
}

void TIM13_Configuration(void)
{
        TIM_TimeBaseInitTypeDefTIM_TimeBaseStructure;
        TIM_OCInitTypeDefTIM_OCInitStructure;
       
       
        RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1 , ENABLE);

/* TIM3 and TIM4 clock enable */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
       
        TIM_TimeBaseStructure.TIM_Period = 5559;
TIM_TimeBaseStructure.TIM_Prescaler =0;
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;

TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);
       
        GPIO_PinRemapConfig(GPIO_FullRemap_TIM3, ENABLE);
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Toggle;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
        TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OCInitStructure.TIM_Pulse = 499;
       
       
       
        TIM_ClearFlag(TIM3, TIM_FLAG_CC1);
TIM_ITConfig(TIM3,TIM_IT_CC1,ENABLE);//ÖжÏʹÄÜ
       

TIM_OC1Init(TIM3, &TIM_OCInitStructure);
        TIM_OC1PreloadConfig(TIM3, TIM_OCPreload_Disable);
       
       
       

/* Slave Mode selection: TIM3 */
TIM_SelectSlaveMode(TIM3, TIM_SlaveMode_Trigger);
TIM_SelectInputTrigger(TIM3, TIM_TS_ITR0);
       
       
        TIM_TimeBaseStructure.TIM_Prescaler = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseStructure.TIM_Period = 255;
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_RepetitionCounter = 4;

TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);

/* Channel 1 Configuration in PWM mode */
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
TIM_OCInitStructure.TIM_Pulse = 127;
       
        TIM_OC1Init(TIM1, &TIM_OCInitStructure);
       
       
        GPIO_PinRemapConfig(GPIO_FullRemap_TIM1, ENABLE);
       
       
        TIM_SelectOutputTrigger(TIM1, TIM_TRGOSource_Update);

/* Select the Master Slave Mode */
TIM_SelectMasterSlaveMode(TIM1, TIM_MasterSlaveMode_Enable);

/* TIM1 counter enable */
TIM_Cmd(TIM1, ENABLE);

/* TIM enable counter */
TIM_Cmd(TIM3, ENABLE);


/* Main Output Enable */
TIM_CtrlPWMOutputs(TIM1, ENABLE);




}

void GPIO_Configuration(void)
{
       
        GPIO_InitTypeDef GPIO_InitStructure;
       
        RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOE |RCC_APB2Periph_GPIOC | RCC_APB2Periph_AFIO, ENABLE);
       
        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9|GPIO_Pin_8;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOE, &GPIO_InitStructure);
       
        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOC, &GPIO_InitStructure);
}

void NVIC_Configuration(void)
{
        NVIC_InitTypeDef NVIC_InitStructure;
        NVIC_InitStructure.NVIC_IRQChannel=TIM3_IRQn;//ʹÄÜÖжÏ
       
        NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0;
        NVIC_InitStructure.NVIC_IRQChannelSubPriority=1;
        NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
        NVIC_Init(&NVIC_InitStructure);

}

       
       



ts2000 发表于 2017-11-23 15:10:49

你不打开比较中断有什么可能会中断？
TIM_ITConfig(TIM1, TIM_IT_CC1,ENABLE);//使能或者失能指定的TIM中断
这个没打开吧？

sam2chen 发表于 2017-11-23 15:13:28

试过其它pwm模式，都是无法进入中断，无法更改比较值和溢出值，即arr和ccr值，在slave模式下是不是还要做一些其它命令设定或是修改，忘大佬解答

wudianjun2001 发表于 2017-12-12 10:44:59

单步运行下看寄存器的值是否正常，计数器到后状态位是否有变化

ts2000 发表于 2017-12-12 11:33:20

你不打开比较中断有什么可能会中断？
TIM_ITConfig(TIM1, TIM_IT_CC1,ENABLE);//使能或者失能指定的TIM中断
这个没打开吧？

wolfgang2015 发表于 2017-12-12 11:41:04

的确，不能中断，就要看中断是否打开，如果被mark掉，是不会进入中断的。

wenyangzeng 发表于 2017-12-12 13:18:48

RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1 , ENABLE);
好像只打开TIM1，TIM3未启动。

无薪税绵 发表于 2017-12-12 14:18:13

给个链接你参考一下：
http://www.cnblogs.com/wangh0802PositiveANDupward/archive/2013/01/01/2841620.html
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