TIM1重映像到PE引脚不出波形，使用默认引脚时有波形

2022-12-4 12:36

GPIO_InitTypeDef GPIO_InitStructure;
      GPIO_PinRemapConfig(GPIO_FullRemap_TIM1,ENABLE);
      RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO|RCC_APB2Periph_GPIOE|RCC_APB2Periph_TIM1,ENABLE);
      GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP;
      GPIO_InitStructure.GPIO_Pin=GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_10|GPIO_Pin_11|GPIO_Pin_12|GPIO_Pin_13;
      GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
      GPIO_Init(GPIOE,&GPIO_InitStructure);

2022-12-4 12:38

如果不做REMAP是否能正常输出呢？

2022-12-4 12:42

注意stm32f1系列的TIM1 的 Full remap 仅限于100脚和144脚封装;

2022-12-4 12:45

另外请注意TIM1的时钟是APB2 以及需使能其MOE.

2022-12-4 12:47

不做REMP能输出我用的是STMF103VET6 100引脚的

2022-12-4 12:49

void TIM1_GPIO_Configuration(void)
{
      GPIO_InitTypeDef GPIO_InitStructure;
      GPIO_PinRemapConfig(GPIO_FullRemap_TIM1,ENABLE);
      RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO|RCC_APB2Periph_GPIOE|RCC_APB2Periph_TIM1,ENABLE);
      GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP;
      GPIO_InitStructure.GPIO_Pin=GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_10|GPIO_Pin_11|GPIO_Pin_12|GPIO_Pin_13;
      GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
      GPIO_Init(GPIOE,&GPIO_InitStructure);

//       RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_TIM1,ENABLE);
//       GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP;
//       GPIO_InitStructure.GPIO_Pin=GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_10|GPIO_Pin_11|GPIO_Pin_12|GPIO_Pin_13;
//       GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
//       GPIO_Init(GPIOA,&GPIO_InitStructure);
}

void TIM1_MODE_Configuration(void)
{
      TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
      TIM_OCInitTypeDef TIM_OCInitStructure;
      NVIC_InitTypeDef NVIC_InitStructure;
      TIM_BDTRInitTypeDef TIM_BDTRInitStructure;

      TIM_TimeBaseInitStructure.TIM_Period=14399;
      TIM_TimeBaseInitStructure.TIM_Prescaler=0;
      TIM_TimeBaseInitStructure.TIM_ClockDivision=TIM_CKD_DIV1;
      TIM_TimeBaseInitStructure.TIM_CounterMode=TIM_CounterMode_CenterAligned1;
      TIM_TimeBaseInitStructure.TIM_RepetitionCounter=0;
      TIM_TimeBaseInit(TIM1,&TIM_TimeBaseInitStructure);

      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=0;
      TIM_OCInitStructure.TIM_OCPolarity=TIM_OCPolarity_Low;
      TIM_OCInitStructure.TIM_OCNPolarity=TIM_OCNPolarity_Low;
      TIM_OCInitStructure.TIM_OCIdleState=TIM_OCIdleState_Set;
      TIM_OCInitStructure.TIM_OCNIdleState=TIM_OCNIdleState_Reset;
      TIM_OC1Init(TIM1,&TIM_OCInitStructure);
      TIM_OC1PreloadConfig(TIM1,TIM_OCPreload_Enable);

      TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;
      TIM_OCInitStructure.TIM_Pulse=0;
      TIM_OC2Init(TIM1,&TIM_OCInitStructure);
      TIM_OC2PreloadConfig(TIM1,TIM_OCPreload_Enable);

      TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;
      TIM_OCInitStructure.TIM_Pulse=0;
      TIM_OC3Init(TIM1,&TIM_OCInitStructure);
      TIM_OC3PreloadConfig(TIM1,TIM_OCPreload_Enable);

//       TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;
//       TIM_OCInitStructure.TIM_Pulse=125;
//       TIM_OC4Init(TIM1,&TIM_OCInitStructure);
//       TIM_OC4PreloadConfig(TIM1,TIM_OCPreload_Enable);

  NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
  NVIC_InitStructure.NVIC_IRQChannel=TIM1_UP_IRQn;
      NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0;
      NVIC_InitStructure.NVIC_IRQChannelSubPriority=0;
      NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
      NVIC_Init(&NVIC_InitStructure);
      TIM_ITConfig(TIM1,TIM_IT_Update,ENABLE);

      TIM_BDTRInitStructure.TIM_OSSRState=TIM_OSSRState_Disable;
      TIM_BDTRInitStructure.TIM_OSSIState=TIM_OSSIState_Disable;
      TIM_BDTRInitStructure.TIM_LOCKLevel=TIM_LOCKLevel_OFF;
      TIM_BDTRInitStructure.TIM_DeadTime=0;
      TIM_BDTRInitStructure.TIM_Break=TIM_Break_Disable;
      TIM_BDTRInitStructure.TIM_BreakPolarity=TIM_BreakPolarity_High;
      TIM_BDTRInitStructure.TIM_AutomaticOutput=TIM_AutomaticOutput_Enable;
      TIM_BDTRConfig(TIM1,&TIM_BDTRInitStructure);

      TIM_ARRPreloadConfig(TIM1,ENABLE);
      TIM_Cmd(TIM1,ENABLE);
      TIM_CtrlPWMOutputs(TIM1,ENABLE);
}

2022-12-4 12:53

记得开启AFIO时钟， RCC_APB2ENR_AFIOEN

2022-12-4 12:57

问题解决了，是REMAP函数位置放错了。

2022-12-4 12:59

放到哪里了

2022-12-6 14:30

是不是时钟没开

2022-12-6 14:46

不做REMAP是否能正常输出

2022-12-6 16:19

REMAP函数放哪了？

2022-12-6 18:11

是不是时钟没配置好啊

2022-12-6 19:35

TIM1的时钟是APB2

2022-12-6 19:59

时钟没打开吗？

2022-12-7 18:52

不做REMAP是否能正常输出

2023-1-4 11:13

重映像之后还需要对相关的引脚进行配置才可以使用

2023-1-4 11:23

这个引脚的时钟源好像不是楼主配置的这个时钟啊

2023-1-4 11:44

REMAP函数应该放在哪个函数的后边比较合适呢

2023-1-4 11:56

这个函数的作用是什么在初始化过程中它的位置有什么影响呢

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