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- 注册时间
- 2020-2-21
- 在线时间
- 18 小时
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1金钱
如题所示,同时使用了TIM3-3 和TIM3-4 ,这两个都正常输出PWM波形,但是PE9脚怎么都没有,求各位大神帮忙看下哪里不对,刚注册只有一个金
TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStruct;
GPIO_InitTypeDef GPIO_InitStruct;
TIM_OCInitTypeDef TIM_OCInitStruct;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOE | RCC_APB2Periph_GPIOF | RCC_APB2Periph_AFIO, ENABLE);
GPIO_PinRemapConfig(GPIO_FullRemap_TIM1,ENABLE);
GPIO_AFIODeInit();
TIM_DeInit(TIM3);
TIM_TimeBaseInitStruct.TIM_Prescaler = 0;
TIM_TimeBaseInitStruct.TIM_Period = 900-1;
TIM_TimeBaseInitStruct.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInitStruct.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseInitStruct.TIM_RepetitionCounter = 0;
TIM_TimeBaseInit(TIM3, &TIM_TimeBaseInitStruct);
TIM_ARRPreloadConfig(TIM3, ENABLE);
TIM_DeInit(TIM1);
TIM_TimeBaseInitStruct.TIM_Prescaler = 0;
TIM_TimeBaseInitStruct.TIM_Period = 900-1;
TIM_TimeBaseInitStruct.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInitStruct.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseInitStruct.TIM_RepetitionCounter = 0;
TIM_TimeBaseInit(TIM1, &TIM_TimeBaseInitStruct);
TIM_ARRPreloadConfig(TIM1, ENABLE);
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_5;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOC, &GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_7| GPIO_Pin_8;
GPIO_Init(GPIOE, &GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_11 | GPIO_Pin_12;
GPIO_Init(GPIOF, &GPIO_InitStruct);
GPIO_ResetBits(GPIOE, GPIO_Pin_7 | GPIO_Pin_8);
GPIO_ResetBits(GPIOC, GPIO_Pin_4 | GPIO_Pin_5);
GPIO_ResetBits(GPIOF, GPIO_Pin_11| GPIO_Pin_12);
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 ;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_9;
GPIO_Init(GPIOE, &GPIO_InitStruct);
TIM_OCStructInit(&TIM_OCInitStruct);
TIM_OCInitStruct.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStruct.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OCInitStruct.TIM_Pulse = 0;
TIM_OCInitStruct.TIM_OutputState = TIM_OutputState_Enable;
TIM_OC3Init(TIM3, &TIM_OCInitStruct);
TIM_OC3PreloadConfig(TIM3, TIM_OCPreload_Enable);
TIM_OC4Init(TIM3, &TIM_OCInitStruct);
TIM_OC4PreloadConfig(TIM3, TIM_OCPreload_Enable);
TIM_OC1Init(TIM1, &TIM_OCInitStruct);
TIM_OC1PreloadConfig(TIM1, TIM_OCPreload_Enable);
TIM_Cmd(TIM1, ENABLE);
TIM_Cmd(TIM3, ENABLE);
TIM_CtrlPWMOutputs(TIM1,ENABLE);
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