问答-
AMP32F030怎么配置TIM1的CH1,CH2,CH3输出PWM？
用ST的标准库配置PA8,PA9,PA10输出TIM1的PWM，一直没输出，代码如下：RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA,ENABLE);GPIO_InitStructure.GPIO_Pin=GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_10;GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF;GPIO_InitStructure.GPIO_OType=GPIO_OType_PP;//GPIO_InitStructure.GPIO_PuPd=GPIO_PuPd_UP;GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;GPIO_Init(GPIOA,&GPIO_InitStructure);GPIO_PinAFConfig(GPIOA,GPIO_PinSource8,GPIO_AF_2);//TIM1_CH1GPIO_PinAFConfig(GPIOA,GPIO_PinSource9,GPIO_AF_2);//TIM1_CH2GPIO_PinAFConfig(GPIOA,GPIO_PinSource10,GPIO_AF_2);//TIM1_CH3RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1,ENABLE);//使能定时器1TIM_TimeBaseStructure.TIM_Period=1000-1;//ARRTIM_TimeBaseStructure.TIM_Prescaler=48-1;//PSCTIM_TimeBaseStructure.TIM_ClockDivision=TIM_CKD_DIV1;TIM_TimeBaseStructure.TIM_CounterMode=TIM_CounterMode_Up;TIM_TimeBaseStructure.TIM_RepetitionCounter=0;TIM_TimeBaseInit(TIM1,&TIM_TimeBaseStructure);TIM_OCInitStructure.TIM_OCMode=TIM_OCMode_PWM1;TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;//通道输出使能TIM_OCInitStructure.TIM_OutputNState=TIM_OutputNState_Disable;//互补通道关闭TIM_OCInitStructure.TIM_Pulse=500;//初始占空比CCR1=0TIM_OCInitStructure.TIM_OCPolarity=TIM_OCPolarity_High;//有效电平高TIM_OC1Init(TIM1,&TIM_OCInitStructure);TIM_OC1PreloadConfig(TIM1,TIM_OCPreload_Enable);//使能CCR预装载TIM_OC2Init(TIM1,&TIM_OCInitStructure);TIM_OC2PreloadConfig(TIM1,TIM_OCPreload_Enable);//使能CCR预装载TIM_OC3Init(TIM1,&TIM_OCInitStructure);TIM_OC3PreloadConfig(TIM1,TIM_OCPreload_Enable);//使能CCR预装载TIM_BDTRInitStructure.TIM_OSSRState=TIM_OSSRState_
2026-07-13 6
