cddxcdx 发表于 2013-3-31 15:19:26

stm32控制无刷直流电机的程序

最近下的一个关于stm32控制无刷直流电机的程序，通过以下2个定时器分别产生PWM和接受霍尔信号，但是本人刚接触stm32,下面的程序看不懂，希望高手能详细解释下，万分感谢。
void BLDC_TIM1Config(void)
{
   TIM_TimeBaseInitTypeDefTIM_TimeBaseStructure;                     //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);
   /*PWM f = 72MHZ/(3*3000) = 8kHZ */
   TIM_TimeBaseStructure.TIM_Prescaler = 3 - 1;                   //TIM基本初始化
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_CenterAligned2;//中央对齐计数模式 向上计数时被设置
TIM_TimeBaseStructure.TIM_Period = 750-1;                         //PWM 16K
   TIM_TimeBaseStructure.TIM_ClockDivision = 0;
   TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;

   TIM_TimeBaseInit(TIM1,&TIM_TimeBaseStructure);
   TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;                  //TIM输出通道初始化
TIM_OCInitStructure.TIM_OutputState= TIM_OutputState_Disable;
   TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Disable;                  
   TIM_OCInitStructure.TIM_Pulse = (unsigned int)AD_value;
   TIM_OCInitStructure.TIM_OCPolarity   = TIM_OCPolarity_High;
   TIM_OCInitStructure.TIM_OCNPolarity= TIM_OCNPolarity_High;         
   TIM_OCInitStructure.TIM_OCIdleState= TIM_OCIdleState_Set;
   TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCIdleState_Reset;         
   TIM_OC1Init(TIM1,&TIM_OCInitStructure);

   TIM_OCInitStructure.TIM_Pulse = (unsigned int)AD_value;
   TIM_OC2Init(TIM1,&TIM_OCInitStructure);

   TIM_OCInitStructure.TIM_Pulse = (unsigned int)AD_value;
   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;                  
   TIM_OCInitStructure.TIM_Pulse =745;
   TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;         
   TIM_OC4Init(TIM1,&TIM_OCInitStructure);

   TIM_BDTRInitStructure.TIM_OSSRState = TIM_OSSRState_Enable;      //死区刹车初始化
TIM_BDTRInitStructure.TIM_OSSIState = TIM_OSSIState_Enable;
   TIM_BDTRInitStructure.TIM_LOCKLevel = TIM_LOCKLevel_OFF;
   TIM_BDTRInitStructure.TIM_DeadTime = 100;
   TIM_BDTRInitStructure.TIM_Break = TIM_Break_Disable;         //如打开，开机无输出且状态紊乱
TIM_BDTRInitStructure.TIM_BreakPolarity = TIM_BreakPolarity_Low;
   TIM_BDTRInitStructure.TIM_AutomaticOutput = TIM_AutomaticOutput_Disable;
   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_ITR1);      //输入触发源选择TIM2   
    TIM_CtrlPWMOutputs(TIM1,ENABLE);
void BLDC_TIM2Config(void)
{
   TIM_TimeBaseInitTypeDefTIM_TimeBaseStructure;                   //基本结构体变量定义
   TIM_ICInitTypeDef               TIM_ICInitStructure;               //定义结构体变量
   TIM_OCInitTypeDef                  TIM_OCInitStructure;               //输出结构体变量定义
      
   TIM_DeInit(TIM2);

   TIM_TimeBaseStructure.TIM_Prescaler = 72-1;                   //TIM基本初始化
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
   TIM_TimeBaseStructure.TIM_Period =65535;
   TIM_TimeBaseStructure.TIMClockDivision = 0;
   TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;

   TIM_TimeBaseInit(TIM2,&TIM_TimeBaseStructure);   
      
   TIM_ICInitStructure.TIM_Channel = TIM_Channel_1;            //选择通道1
   TIM_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Rising; //输入上升沿捕获
   TIM_ICInitStructure.TIM_ICSelection = TIM_ICSelection_TRC;//配置通道为输入，并映射到哪里
   TIM_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1;       //输入捕获预分频值
   TIM_ICInitStructure.TIM_ICFilter = 10;                      //输入滤波器带宽设置
   TIM_ICInit(TIM2, &TIM_ICInitStructure);                     //输入通道配置

   TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;             //TIM输出通道初化
   TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;            
   TIM_OCInitStructure.TIM_Pulse =1023;
   TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;      
   TIM_OC2Init(TIM2,&TIM_OCInitStructure);

   TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Timing;                     //TIM输出通道初始化
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Disable;            
   TIM_OCInitStructure.TIM_Pulse =65535;
   TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;      
   TIM_OC4Init(TIM2,&TIM_OCInitStructure);

   TIM_SelectHallSensor(TIM2,ENABLE);                        //使能TIMx的霍尔传感器接口
TIM_SelectInputTrigger(TIM2, TIM_TS_TI1F_ED);               //输入触发源选择   
TIM_SelectSlaveMode(TIM2, TIM_SlaveMode_Reset);             //从模式选择
TIM_SelectMasterSlaveMode(TIM2, TIM_MasterSlaveMode_Enable);//主从模式选择   

pklj2020 发表于 2013-4-11 13:02:12

这样看不出来，可以看看全部的程序么，QQ381508046

robin林 发表于 2013-5-2 21:23:55

有没有个工程啊

chushichongyu 发表于 2014-3-10 10:48:25

这样设置下tim1可以产生3组反相且带有死去的pwm，同时tim2处于输入捕获状态，可以接受霍尔传感器的信号用于换相，在tim2的中断中应该有相关换相的函数，这个文件只是开始的init

点雨落山岚 发表于 2014-5-3 22:57:08

学习一下
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