HK32F030MF4P6 PC3-TIM1_CH3 PWM 没输出

只看该作者 · 2021-3-25 15:54

void TIM1_WindPwm_Config(void)                      //16K TIM1_CH3
{
   GPIO_InitTypeDef GPIO_InitStructure;
      TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
      TIM_OCInitTypeDef  TIM_OCInitStructure;

      RCC_AHBPeriphClockCmd( RCC_AHBPeriph_GPIOC, ENABLE );
   RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1 , ENABLE);
      // 使能IOMUX时钟
      RCC_APB1PeriphClockCmd(RCC_APB1Periph_IOMUX,ENABLE);

   GPIO_IOMUX_PinAFConfig(GPIOC,GPIO_PinSource3,IOMUX_PC3_TIM1CH3);
      GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
      GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
      GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;
      GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;//GPIO_PuPd_DOWN;
      GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
      GPIO_Init(GPIOC, &GPIO_InitStructure);

GPIO_PinAFConfig(GPIOC,GPIO_PinSource3,GPIO_AF_3);

      /* Time Base configuration */
      TIM_TimeBaseStructure.TIM_Prescaler = 0;
      TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
      TIM_TimeBaseStructure.TIM_Period = TIM1_PERIOD-1;
      TIM_TimeBaseStructure.TIM_ClockDivision = 0;
      TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;

      TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);

      /* Channel 1, 2,3 and 4 Configuration in PWM mode */
      TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;
      TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
      TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Disable;//TIM_OutputNState_Enable;
      TIM_OCInitStructure.TIM_Pulse = 1000;
      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_OCIdleState_Reset;

      TIM_OC3Init(TIM1, &TIM_OCInitStructure);

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

      /* TIM1 Main Output Enable */
      TIM_CtrlPWMOutputs(TIM1, ENABLE);
} @annko2005