TIM1 互补输出 频率设置16k,示波器看下只有8k仿真也是 ，上代码谁帮忙看下吧!

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TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;   //时间基准配置基本结构体变量定义

   TIM_OCInitTypeDef  TIM_OCInitStructure;                     //输出结构体变量定义

   TIM_BDTRInitTypeDef  TIM_BDTRInitStructure;   //死区刹车结构体变量定义

   TIM_DeInit(TIM1);

   TIM_TimeBaseStructure.TIM_Prescaler = 2;   //TIM基本初始化预分频

   TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_CenterAligned2;//中央对齐模式2计数模式

   TIM_TimeBaseStructure.TIM_Period = 1499;   //PWM 16K  计数周期

   TIM_TimeBaseStructure.TIM_ClockDivision = 0; //72mhz 运与计算死区时间

   TIM_TimeBaseStructure.TIM_RepetitionCounter = 0; //不重复计数

   TIM_TimeBaseInit(TIM1,&TIM_TimeBaseStructure);

   TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;   //TIM输出通道初始化脉冲宽度调制模式2

   TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Disable;   ////0C1输出失能

   TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Disable;  //                

   TIM_OCInitStructure.TIM_Pulse =1200;                          //待装入捕获比较寄存器的值 占空比的值

   TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; //输出比较记性高

   TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High;     //两路互补输出   

   TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set;  //死区后 输出状态 1

   TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCIdleState_Reset;   //   0    

  

   TIM_OC1Init(TIM1,&TIM_OCInitStructure); 

   TIM_OCInitStructure.TIM_Pulse =1200;  //占空比的值 CCR2

   TIM_OC2Init(TIM1,&TIM_OCInitStructure);

   TIM_OCInitStructure.TIM_Pulse =1200;

   TIM_OC3Init(TIM1,&TIM_OCInitStructure);

   TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;   //TIM输出通道4初始化，用来触发AD注入采样

   TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Disable;   // 不输出               

   TIM_OCInitStructure.TIM_Pulse =1495;  //满值 占空比

   TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;     //输出极性高      

  

   TIM_OC4Init(TIM1,&TIM_OCInitStructure); 

 

   TIM_BDTRInitStructure.TIM_OSSRState = TIM_OSSRState_Enable; //死区刹车初始化 0x0800

   TIM_BDTRInitStructure.TIM_OSSIState = TIM_OSSIState_Enable;

   TIM_BDTRInitStructure.TIM_LOCKLevel = TIM_LOCKLevel_OFF; 

   TIM_BDTRInitStructure.TIM_DeadTime = 100; //死区时间设置

   TIM_BDTRInitStructure.TIM_Break = TIM_Break_Disable; //不使能刹车输入  如打开，开机无输出且状态紊乱？？？？

   TIM_BDTRInitStructure.TIM_BreakPolarity = TIM_BreakPolarity_Low;   //刹车输入极性   1：刹车输入高电平有效  不使能刹车 就没做用了

   TIM_BDTRInitStructure.TIM_AutomaticOutput = TIM_AutomaticOutput_Disable;  //自动输出

   TIM_BDTRConfig(TIM1,&TIM_BDTRInitStructure);

   TIM_OC1PreloadConfig(TIM1,TIM_OCPreload_Enable);  //使能捕获比较寄存器预装载（通道1）

   TIM_OC2PreloadConfig(TIM1,TIM_OCPreload_Enable); //使能捕获比较寄存器预装载（通道2）

   TIM_OC3PreloadConfig(TIM1,TIM_OCPreload_Enable); //使能捕获比较寄存器预装载（通道3）

   

   TIM_SelectInputTrigger(TIM1, TIM_TS_ITR2);        //  输入触发源选择TIM3 0x0020  TIMx->SMCR  010：内部触发2(ITR2)

  

   //TIM_SelectSlaveMode(TIM1, TIM_SlaveMode_Trigger);//从模式选择 触发  

   TIM_CtrlPWMOutputs(TIM1,ENABLE);   //定时器1 输出使能  moe位

   TIM_Cmd(TIM1,ENABLE); //打开定时器1