STM32F429 函数增加形参后，TIM2寄存器配置出错

a1063750690

原来函数能正常输出PWM波


void TIM_PWM_Config(uint16_t Frequency, double DutyCycle)
{
        TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
        TIM_OCInitTypeDef  TIM_OCInitStructure;

  /* Compute the prescaler value */
        uint16_t PrescalerValue = (uint16_t) (SystemCoreClock / 10000000) - 1;
        uint16_t pulse = (uint16_t)((10000000/Frequency)*DutyCycle);

        RCC_TIMCLKPresConfig(RCC_TIMPrescActivated);

  /* Time base configuration */
  TIM_TimeBaseStructure.TIM_Period = 10000000/Frequency-1;
  TIM_TimeBaseStructure.TIM_Prescaler = PrescalerValue;
  TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
  TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);

        /* PWM1 Mode configuration: Channel1 */
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
  TIM_OCInitStructure.TIM_Pulse = pulse;
//        TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
  TIM_OC1Init(TIM2, &TIM_OCInitStructure);

}

主函数中对应程序
        TIM_PWM_Config(4000, 0.5);

但加入形参uint8_t Num后
void TIM_PWM_Config(uint8_t Num, uint16_t Frequency, double DutyCycle)

主函数中对应程序
        TIM_PWM_Config(1，4000, 0.5);
其他部分无变化则只输出低电平
两种情况函数调用后TIM2各寄存器如图

正点原子

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