HK32F030MF4P6改变占空比问题

只看该作者 · 2022-2-24 00:23

我原来使用stm32F103来做步进电机驱动，256细分都做好了，领导忽然说，要把CPU改成HK32F030MF4P6，做的过程占空比无法修改，问题如下：
步进电机细分需要不断改变占空比，比如这个周期内占空比是20，下一个周期的占空比是21，那么，我使用航顺的例程如下：
      /*配置TIMER*/
void TIM_Config(void)
{
      TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
  TIM_OCInitTypeDef  TIM_OCInitStructure;
      TIM_BDTRInitTypeDef TIM_BDTRInitStructure;
      NVIC_InitTypeDef NVIC_InitStructure;

  /* Time Base configuration */
  TIM_TimeBaseStructure.TIM_Prescaler = 0;//，CNTCLK=fck_PSC/(PSC[15:0]+1)
  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
  TIM_TimeBaseStructure.TIM_Period = 3200;//配置PWM频率为10KHZ
  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_Timing;
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
  TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
  TIM_OCInitStructure.TIM_Pulse = 1600;
  TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
  TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High;
  TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set;
  TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Set;

  TIM_OC1Init(TIM1, &TIM_OCInitStructure);

  TIM_OCInitStructure.TIM_Pulse = 800;
  TIM_OC2Init(TIM1, &TIM_OCInitStructure);

  TIM_OCInitStructure.TIM_Pulse = 400;
  TIM_OC3Init(TIM1, &TIM_OCInitStructure);

//  TIM_OCInitStructure.TIM_Pulse = Channel4Pulse;
//  TIM_OC4Init(TIM1, &TIM_OCInitStructure);
  /* Automatic Output enable, Break, dead time and lock configuration*/
  TIM_BDTRInitStructure.TIM_OSSRState = TIM_OSSRState_Enable;
  TIM_BDTRInitStructure.TIM_OSSIState = TIM_OSSIState_Enable;
  TIM_BDTRInitStructure.TIM_LOCKLevel = TIM_LOCKLevel_OFF;
  TIM_BDTRInitStructure.TIM_DeadTime = 1;
  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_CCPreloadControl(TIM1, ENABLE);
      TIM_ITConfig(TIM1, TIM_IT_COM, ENABLE);
  /* TIM1 counter enable */
  TIM_Cmd(TIM1, ENABLE);

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

      /* Enable the TIM1 Trigger and commutation interrupt */
  NVIC_InitStructure.NVIC_IRQChannel = TIM1_UP_TRG_COM_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);

}
产生的占空比是正确的，示波器和逻辑分析仪测试输出波形符合软件设定，
我使用中断，在下一个周期，改变上面代码中的 TIM_OCInitStructure.TIM_Pulse 值，占空比没有变化，不知道，还有没有其他的地方要改变的。

那位大神能够指点一二，谢谢