void PWMA_Init(void) //PWMA的初始化 { //1.时钟源选择 这里不改,默认22.1184mhz //2.时基单元选择 PWMA_PSCRH = 0; //1分频 PWMA_PSCRL = 0; PWMA_ARRH = (u8)(PWM_ARR>>8); PWMA_ARRL = (u8)(PWM_ARR); PWMA_CCR1H = (u8)(PWM_CCR>>8); PWMA_CCR1L = (u8)(PWM_CCR); //3.输入输出的引脚配置 PWMA_ENO = 0X00; //使能PWM1n通道输出 PWMA_ENO |= 0X02; PWMA_PS =0x00; //选择PWM1从P60引脚输出 PWMA_PS |= (2<<0); //4.输入输出模式设置 PWMA_CCER1 = 0X00; PWMA_CCMR1 = 0X68; //pwm模式1 配置置位输出 PWMA_CCER1 = 0x04; //开启输出比较通道 PWMA_BKR = 0X80; //使能主输出 PWMA_CR1 |= 0X01; //启动计数器 } PWMA_ENO = 0X00; PWMA_ENO |= 0X02; 直接写成PWMA_ENO = 0X02; 行不行呢? 下面一句PWMA_CCER1 = 0X00;直接删除行不行? (STC32G的芯片还没到货,暂时不能实验)
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