stm32高级定时器1互补输出 验证代码

GPIO_InitTypeDef GPIO_InitStructure;
    TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
    TIM_OCInitTypeDef  TIM_OCInitStructure;
    TIM_BDTRInitTypeDef      TIM1_BDTRInitStruct;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);// 
     RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB|RCC_APB2Periph_GPIOA , ENABLE);  //使能GPIO外设时钟使能
    //RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO , ENABLE);  //复用引脚                                                                   

   //设置该引脚为复用输出功能,输出TIM1 CH1的PWM脉冲波形
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_15; //TIM_CH1
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;  //复用推挽输出
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOB, &GPIO_InitStructure);
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10; //TIM_CH1
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;  //复用推挽输出
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOA, &GPIO_InitStructure);    
    //GPIO_PinRemapConfig(GPIO_PartialRemap_TIM1,ENABLE);
    
    TIM_TimeBaseStructure.TIM_Period = arr; //设置在下一个更新事件装入活动的自动重装载寄存器周期的值     80K
    TIM_TimeBaseStructure.TIM_Prescaler =psc; //设置用来作为TIMx时钟频率除数的预分频值  不分频
    TIM_TimeBaseStructure.TIM_ClockDivision = 0; //设置时钟分割:TDTS = Tck_tim
    TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;  //TIM向上计数模式
    TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure); //根据TIM_TimeBaseInitStruct中指定的参数初始化TIMx的时间基数单位
///****** 配置BDTR寄存器，配置死区时间****************/     
///*
//20        定时器时钟 72M   TIM_ClockDivision = TIM_CKD_DIV1时,  Tdts = 13.89ns
//21        0 - 1.764us  用算法一
//22        1.778us - 3.505us  用算法二
//23        3.556us - 7.000us  用算法三 
//24        7.1117us - 14us    用算法四
//25        需要更长时间,使用TIM_ClockDivision分频
//26     */
//    TIM1_BDTRInitStruct.TIM_OSSRState = TIM_OSSRState_Disable;
//    TIM1_BDTRInitStruct.TIM_OSSIState = TIM_OSSIState_Disable;
//    TIM1_BDTRInitStruct.TIM_LOCKLevel = TIM_LOCKLevel_OFF;
//    TIM1_BDTRInitStruct.TIM_DeadTime = 205; //死区时间  72:1us 172:3us 205:5us
//    TIM_BDTRConfig(TIM1,&TIM1_BDTRInitStruct);
 
    TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2; //选择定时器模式:TIM脉冲宽度调制模式2
    TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable; //比较输出使能  N
    TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
    TIM_OCInitStructure.TIM_Pulse = 400; //设置待装入捕获比较寄存器的脉冲值
    TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_Low; //输出极性:TIM输出比较极性高
    TIM_OCInitStructure.TIM_OCPolarity = TIM_OCNPolarity_Low;
    TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Reset ;
    TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset ;
    TIM_OC3Init(TIM1, &TIM_OCInitStructure);  //根据TIM_OCInitStruct中指定的参数初始化外设TIMx

  TIM_CtrlPWMOutputs(TIM1,ENABLE);    //MOE 主输出使能    
    //TIM_SetCompare4(TIM8,700);
    TIM_OC3PreloadConfig(TIM1, TIM_OCPreload_Enable);  //CH1预装载使能     
    
    TIM_ARRPreloadConfig(TIM1, ENABLE); //使能TIMx在ARR上的预装载寄存器
    
    TIM_Cmd(TIM1, ENABLE);  //使能TIM1

标红对的要注意