NUC131 PWM0 CH2 CH3双通道输出，为啥只有CH2输出呢？

只看该作者 · 2021-11-17 11:07

本帖最后由 sky_42959069 于 2021-11-17 11:12 编辑

SYS->GPA_MFP&=~(SYS_GPA_MFP_PA14_Msk|SYS_GPA_MFP_PA15_Msk);
SYS->GPA_MFP|=(SYS_GPA_MFP_PA14_PWM0_CH2|SYS_GPA_MFP_PA15_PWM0_CH3);//PA14 PA15  用于PW0-CH2 CH3                                                                                                       //引脚设置
void PWM_Init(void)
{
      PWM_ConfigOutputChannel(PWM0,2,20000,0);
      PWM_ConfigOutputChannel(PWM0,3,20000,0);
      PWM_EnableOutput(PWM0,PWM_CH_2_MASK);
      PWM_EnableOutput(PWM0,PWM_CH_3_MASK);
      PWM_EnablePeriodInt(PWM0,2,0);
      PWM_EnablePeriodInt(PWM0,3,0);
      NVIC_EnableIRQ(PWM0_IRQn);
}

         //初始化

请大神们帮忙看下，初次玩新唐请多关照！