使用定时器比较输出翻转模式输出PWm脉冲时如何关闭某一通道

manhuazhiwu

 /* Output Compare Toggle Mode configuration: Channel1 */
  TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Toggle;
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
  TIM_OCInitStructure.TIM_Pulse = CCR1_Val;
  TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;
  TIM_OC1Init(TIM1, &TIM_OCInitStructure);

  TIM_OC1PreloadConfig(TIM1, TIM_OCPreload_Disable);

  /* Output Compare Toggle Mode configuration: Channel2 */
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
  TIM_OCInitStructure.TIM_Pulse = CCR2_Val;

  TIM_OC2Init(TIM1, &TIM_OCInitStructure);

  TIM_OC2PreloadConfig(TIM1, TIM_OCPreload_Disable);

  /* Output Compare Toggle Mode configuration: Channel3 */
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
  TIM_OCInitStructure.TIM_Pulse = CCR3_Val;

  TIM_OC3Init(TIM1, &TIM_OCInitStructure);

  TIM_OC3PreloadConfig(TIM1, TIM_OCPreload_Disable);

  /* Output Compare Toggle Mode configuration: Channel4 */
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
  TIM_OCInitStructure.TIM_Pulse = CCR4_Val;

  TIM_OC4Init(TIM1, &TIM_OCInitStructure);

  TIM_OC4PreloadConfig(TIM1, TIM_OCPreload_Disable);
 
   TIM_Cmd(TIM1, ENABLE);//定时器1用于产生脉冲
  TIM_CtrlPWMOutputs(TIM1, ENABLE);
    TIM_ITConfig(TIM1, TIM_IT_CC1 | TIM_IT_CC2 | TIM_IT_CC3| TIM_IT_CC4, ENABLE);
像这样把四个通道都打开 用于产生四路不同频率的PWM脉冲，之后想关闭比如说通道一的脉冲输出而且是在不影响其他几路输出的情况下
执行TIM_ITConfig(TIM1, TIM_IT_CC1 , DISABLE);这样貌似不行a

正点原子

关闭CCER对应位即可。