高级定时器与通用定时器比较类似，下面是一个TIM1 的PWM 程序,TIM1是STM32唯一的高级定时器。共有4个通道有死区有互补。

 

先是配置IO脚：

      GPIO_InitTypeDef GPIO_InitStructure;

 

      

      GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;

      GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;

      GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

      

      GPIO_Init(GPIOA, &GPIO_InitStructure);

       

      GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;

      GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;

      GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

      

      GPIO_Init(GPIOB, &GPIO_InitStructure);

 

 

      RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1,ENABLE);

      RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);

      RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);

 

      TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;

      TIM_OCInitTypeDef TIM_OCInitStructure;

void Tim1_Configuration(void)
{
   TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
   TIM_OCInitTypeDef TIM_OCInitStructure;

 
    TIM_DeInit(TIM1); //重设为缺省值

 
 TIM_TimeBaseStructure.TIM_Prescaler = 4000;      //预分频(时钟分频)72M/4000=18K
 TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;  //向上计数
 TIM_TimeBaseStructure.TIM_Period = 144;       //装载值 18k/144=125hz 就是说向上加的144便满了
 TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;   //设置了时钟分割 不懂得不管
 TIM_TimeBaseStructure.TIM_RepetitionCounter = 0x0;    //周期计数器值 不懂得不管
 TIM_TimeBaseInit(TIM1,&TIM_TimeBaseStructure);   //初始化TIMx的时间基数单位

 
 TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;     //PWM模式2
 TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;  //正向通道有效 PA8 
 TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable; //反向通道也有效 PB13
 TIM_OCInitStructure.TIM_Pulse = 40;        //占空时间 144 中有40的时间为高，互补的输出正好相反
 TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;   //输出极性
 TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_Low;    //互补端的极性 
 TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset; //空闲状态下的非工作状态不管
 TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCIdleState_Reset; //先不管

TIM_OC1Init(TIM1,&TIM_OCInitStructure);       //数初始化外设TIMx通道1这里2.0库为TIM_OCInit
 

 
 TIM_Cmd(TIM1,ENABLE);
 
     
 TIM_CtrlPWMOutputs(TIM1,ENABLE);
}

 

//设置捕获寄存器1
void SetT1Pwm1(u16 pulse)
{
 TIM1->CCR1=pulse;
}

 

 

 

 

//在MAIN 中加点键盘扫描啥的用来改变占空比

 

#include "STM32Lib\\stm32f10x.h"
      #include "hal.h"

extern void SetT1Pwm1(u16 pulse);

int main(void)
{
 u16 pulse=40;
 ChipHalInit();   //片内硬件初始化
 ChipOutHalInit();  //片外硬件初始化
 
 for(;;)
 {
  if(GET_UP())
  {
   while(GET_UP());
   if(pulse<=144)
   {
    pulse+=5;
    SetT1Pwm1(pulse);
   }
  }
  
  if(GET_DOWN())
  {
   while(GET_DOWN());
   if(pulse>30)
   {
    pulse-=5;
    SetT1Pwm1(pulse);
   }
  }
 }
 
 
}