f103zet6高级定时器和通用定时器 PWM输出问题

牧马人人 · 发表于 2019-4-10 11:06:44

本帖最后由牧马人人于 2019-4-11 08:08 编辑

本人参照定时器3的配置方法，将定时器2,4,5配置，定时器3，4能够正常输出4路PWM控制舵机，但是定时器5无PWM输出，其中定时器2为了避免与定时器5引脚冲突，定时器2采用完全重映射将引脚映射到其他空闲引脚，映射后的四个引脚只有PB10,PB11正常输出PWM；另外两个引脚不输出。两个高级定时器time1和time8配置后也无PWM输出。求大佬指点

定时器1，2,3,4,5，8配置程序如下：

void TIM1_PWM_Init(u16 arr,u16 psc)
{
      GPIO_InitTypeDef GPIO_InitStructure;
      TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
      TIM_OCInitTypeDef  TIM_OCInitStructure;
      RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);//
      RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOE|RCC_APB2Periph_GPIOA , ENABLE);  //??GPIO??????
//????????????,??TIM1 CH1 CH2 CH3 CH4?PWM????

      GPIO_PinRemapConfig(GPIO_FullRemap_TIM1, ENABLE); //Timer1ÍêÈ«ÖØÓ³Éä

      GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9|GPIO_Pin_11|GPIO_Pin_13|GPIO_Pin_14; //TIM1 CH1 CH2 CH3
      GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;  //??????
      GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
      GPIO_Init(GPIOE, &GPIO_InitStructure);

//       GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_10|GPIO_Pin_11; //TIM1 CH1 CH2 CH3
//       GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;  //??????
//       GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
//       GPIO_Init(GPIOA, &GPIO_InitStructure);

      TIM_TimeBaseStructure.TIM_Period = arr; //???????????????????????????
      TIM_TimeBaseStructure.TIM_Prescaler =psc; //??????TIMx???????????  ???
      TIM_TimeBaseStructure.TIM_ClockDivision = 0; //??????:TDTS = Tck_tim
      TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;  //TIM??????
      TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure); //??TIM_TimeBaseInitStruct?????????TIMx???????

      TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; //???????:TIM????????1
      TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //??????
   // TIM_OCInitStructure.TIM_Pulse = 0;                         //????????????????
      TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;    //????:TIM???????
      TIM_OC1Init(TIM1, &TIM_OCInitStructure);  //??TIM_OCInitStruct???????????TIMx
      TIM_OC2Init(TIM1, &TIM_OCInitStructure);  //??TIM_OCInitStruct???????????TIMx
      TIM_OC3Init(TIM1, &TIM_OCInitStructure);  //??TIM_OCInitStruct???????????TIMx
      TIM_OC4Init(TIM1, &TIM_OCInitStructure);  //??TIM_OCInitStruct???????????TIMx

      TIM_CtrlPWMOutputs(TIM1,ENABLE);       //MOE ?????

      TIM_OC1PreloadConfig(TIM1, TIM_OCPreload_Enable);  //CH1?????
      TIM_OC2PreloadConfig(TIM1, TIM_OCPreload_Enable);  //CH2?????
      TIM_OC3PreloadConfig(TIM1, TIM_OCPreload_Enable);  //CH3?????
      TIM_OC4PreloadConfig(TIM1, TIM_OCPreload_Enable);  //CH3?????


      TIM_ARRPreloadConfig(TIM1, ENABLE); //??TIMx?ARR????????
      TIM_Cmd(TIM1, ENABLE);  //??TIM1

// ËÄ¸öÍ¨µÀÈ«²¿Ê¹ÄÜ  CH1--PA8  CH2--PA9  CH3--PA10 CH4--PA11
//  ÍêÈ«ÖØÓ³Éäºó    CH1--PE9  CH2--PE11  CH3--PE13 CH4--PE14
}

void TIM2_PWM_Init(u16 arr,u16 psc)
{

   GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
TIM_OCInitTypeDef  TIM_OCInitStructure;

RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE); //Ê¹ÄÜ¶¨Ê±Æ÷2Ê±ÖÓ
   RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA |RCC_APB2Periph_GPIOB| RCC_APB2Periph_AFIO, ENABLE);  //Ê¹ÄÜGPIOÍâÉèºÍAFIO¸´ÓÃ¹¦ÄÜÄ£¿éÊ±ÖÓ

GPIO_PinRemapConfig(GPIO_FullRemap_TIM2, ENABLE); //Timer3²¿·ÖÖØÓ³Éä  TIM3_CH2->

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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_15; //TIM_CH2
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;  //¸´ÓÃÍÆÍìÊä³ö
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);//³õÊ¼»¯GPIO

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3|GPIO_Pin_10|GPIO_Pin_11; //TIM_CH2
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;  //¸´ÓÃÍÆÍìÊä³ö
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);//³õÊ¼»¯GPIO

//³õÊ¼»¯TIM2
TIM_TimeBaseStructure.TIM_Period = arr; //ÉèÖÃÔÚÏÂÒ»¸ö¸üÐÂÊÂ¼þ×°Èë»î¶¯µÄ×Ô¶¯ÖØ×°ÔØ¼Ä´æÆ÷ÖÜÆÚµÄÖµ
TIM_TimeBaseStructure.TIM_Prescaler =psc; //ÉèÖÃÓÃÀ´×÷ÎªTIMxÊ±ÖÓÆµÂÊ³ýÊýµÄÔ¤·ÖÆµÖµ
TIM_TimeBaseStructure.TIM_ClockDivision = 0; //ÉèÖÃÊ±ÖÓ·Ö¸î:TDTS = Tck_tim
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;  //TIMÏòÉÏ¼ÆÊýÄ£Ê½
TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure); //¸ù¾ÝTIM_TimeBaseInitStructÖÐÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯TIMxµÄÊ±¼ä»ùÊýµ¥Î»

TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2; //Ñ¡Ôñ¶¨Ê±Æ÷Ä£Ê½:TIMÂö³å¿í¶Èµ÷ÖÆÄ£Ê½2
   TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //±È½ÏÊä³öÊ¹ÄÜ
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; //Êä³ö¼«ÐÔ:TIMÊä³ö±È½Ï¼«ÐÔµÍ ###//¸Ä¶¯¼«ÐÔ //###

TIM_OC1Init(TIM2, &TIM_OCInitStructure);  //¸ù¾ÝTÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯ÍâÉèTIM3 OC1
TIM_OC2Init(TIM2, &TIM_OCInitStructure);  //¸ù¾ÝTÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯ÍâÉèTIM3 OC2
TIM_OC3Init(TIM2, &TIM_OCInitStructure);  //¸ù¾ÝTÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯ÍâÉèTIM3 OC3
TIM_OC4Init(TIM2, &TIM_OCInitStructure);  //¸ù¾ÝTÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯ÍâÉèTIM3 OC4

TIM_OC1PreloadConfig(TIM2, TIM_OCPreload_Enable);  //Ê¹ÄÜTIM3ÔÚCCR1ÉÏµÄÔ¤×°ÔØ¼Ä´æÆ÷
   TIM_OC2PreloadConfig(TIM2, TIM_OCPreload_Enable);  //Ê¹ÄÜTIM3ÔÚCCR2ÉÏµÄÔ¤×°ÔØ¼Ä´æÆ÷
   TIM_OC3PreloadConfig(TIM2, TIM_OCPreload_Enable);  //Ê¹ÄÜTIM3ÔÚCCR3ÉÏµÄÔ¤×°ÔØ¼Ä´æÆ÷
   TIM_OC4PreloadConfig(TIM2, TIM_OCPreload_Enable);  //Ê¹ÄÜTIM3ÔÚCCR4ÉÏµÄÔ¤×°ÔØ¼Ä´æÆ÷

TIM_Cmd(TIM2, ENABLE);  //Ê¹ÄÜTIM2

// ËÄ¸öÍ¨µÀÈ«²¿Ê¹ÄÜ  CH1--PA0  CH2--PA1  CH3--PA2 CH4--PA3

}

void TIM3_PWM_Init(u16 arr,u16 psc)
{
GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
TIM_OCInitTypeDef  TIM_OCInitStructure;

RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE); //Ê¹ÄÜ¶¨Ê±Æ÷3Ê±ÖÓ
   RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB|RCC_APB2Periph_GPIOA| RCC_APB2Periph_AFIO, ENABLE);  //Ê¹ÄÜGPIOÍâÉèºÍAFIO¸´ÓÃ¹¦ÄÜÄ£¿éÊ±ÖÓ

//GPIO_PinRemapConfig(GPIO_PartialRemap_TIM3, ENABLE); //Timer3²¿·ÖÖØÓ³Éä  TIM3_CH2->

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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6|GPIO_Pin_7; //TIM_CH2
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;  //¸´ÓÃÍÆÍìÊä³ö
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);//³õÊ¼»¯GPIO

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1; //TIM_CH2
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;  //¸´ÓÃÍÆÍìÊä³ö
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);//³õÊ¼»¯GPIO

//³õÊ¼»¯TIM3
TIM_TimeBaseStructure.TIM_Period = arr; //ÉèÖÃÔÚÏÂÒ»¸ö¸üÐÂÊÂ¼þ×°Èë»î¶¯µÄ×Ô¶¯ÖØ×°ÔØ¼Ä´æÆ÷ÖÜÆÚµÄÖµ
TIM_TimeBaseStructure.TIM_Prescaler =psc; //ÉèÖÃÓÃÀ´×÷ÎªTIMxÊ±ÖÓÆµÂÊ³ýÊýµÄÔ¤·ÖÆµÖµ
TIM_TimeBaseStructure.TIM_ClockDivision = 0; //ÉèÖÃÊ±ÖÓ·Ö¸î:TDTS = Tck_tim
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;  //TIMÏòÉÏ¼ÆÊýÄ£Ê½
TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); //¸ù¾ÝTIM_TimeBaseInitStructÖÐÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯TIMxµÄÊ±¼ä»ùÊýµ¥Î»

//³õÊ¼»¯TIM3 Channel2 PWMÄ£Ê½
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2; //Ñ¡Ôñ¶¨Ê±Æ÷Ä£Ê½:TIMÂö³å¿í¶Èµ÷ÖÆÄ£Ê½2
   TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //±È½ÏÊä³öÊ¹ÄÜ
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; //Êä³ö¼«ÐÔ:TIMÊä³ö±È½Ï¼«ÐÔµÍ ###//¸Ä¶¯¼«ÐÔ //###

TIM_OC1Init(TIM3, &TIM_OCInitStructure);  //¸ù¾ÝTÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯ÍâÉèTIM3 OC1
TIM_OC2Init(TIM3, &TIM_OCInitStructure);  //¸ù¾ÝTÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯ÍâÉèTIM3 OC2
TIM_OC3Init(TIM3, &TIM_OCInitStructure);  //¸ù¾ÝTÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯ÍâÉèTIM3 OC3
TIM_OC4Init(TIM3, &TIM_OCInitStructure);  //¸ù¾ÝTÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯ÍâÉèTIM3 OC4

TIM_OC1PreloadConfig(TIM3, TIM_OCPreload_Enable);  //Ê¹ÄÜTIM3ÔÚCCR1ÉÏµÄÔ¤×°ÔØ¼Ä´æÆ÷
   TIM_OC2PreloadConfig(TIM3, TIM_OCPreload_Enable);  //Ê¹ÄÜTIM3ÔÚCCR2ÉÏµÄÔ¤×°ÔØ¼Ä´æÆ÷
   TIM_OC3PreloadConfig(TIM3, TIM_OCPreload_Enable);  //Ê¹ÄÜTIM3ÔÚCCR3ÉÏµÄÔ¤×°ÔØ¼Ä´æÆ÷
   TIM_OC4PreloadConfig(TIM3, TIM_OCPreload_Enable);  //Ê¹ÄÜTIM3ÔÚCCR4ÉÏµÄÔ¤×°ÔØ¼Ä´æÆ÷

TIM_Cmd(TIM3, ENABLE);  //Ê¹ÄÜTIM3

// ËÄ¸öÍ¨µÀÈ«²¿Ê¹ÄÜ  CH1--PA6  CH2--PA7  CH3--PB0 CH4--PB1

}

void TIM4_PWM_Init(u16 arr,u16 psc)
{
   GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
TIM_OCInitTypeDef  TIM_OCInitStructure;



RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE); //Ê¹ÄÜ¶¨Ê±Æ÷4Ê±ÖÓ
   RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_AFIO, ENABLE);  //Ê¹ÄÜGPIOÍâÉèºÍAFIO¸´ÓÃ¹¦ÄÜÄ£¿éÊ±ÖÓ

GPIO_PinRemapConfig(GPIO_Remap_TIM4, ENABLE); //Timer1ÍêÈ«ÖØÓ³Éä  TIM3_CH2->

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//GPIO_PinRemapConfig(GPIO_PartialRemap_TIM3, ENABLE); //Timer3²¿·ÖÖØÓ³Éä TIM3_CH2->

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//ÉèÖÃ¸ÃÒý½ÅÎª¸´ÓÃÊä³ö¹¦ÄÜ,Êä³öTIM4 CH2µ&#196

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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12|GPIO_Pin_13|GPIO_Pin_14|GPIO_Pin_15; //TIM_CH2
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;  //¸´ÓÃÍÆÍìÊä³ö
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOD, &GPIO_InitStructure);//³õÊ¼»¯GPIO

//³õÊ¼»¯TIM3
TIM_TimeBaseStructure.TIM_Period = arr; //ÉèÖÃÔÚÏÂÒ»¸ö¸üÐÂÊÂ¼þ×°Èë»î¶¯µÄ×Ô¶¯ÖØ×°ÔØ¼Ä´æÆ÷ÖÜÆÚµÄÖµ
TIM_TimeBaseStructure.TIM_Prescaler =psc; //ÉèÖÃÓÃÀ´×÷ÎªTIMxÊ±ÖÓÆµÂÊ³ýÊýµÄÔ¤·ÖÆµÖµ
TIM_TimeBaseStructure.TIM_ClockDivision = 0; //ÉèÖÃÊ±ÖÓ·Ö¸î:TDTS = Tck_tim
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;  //TIMÏòÉÏ¼ÆÊýÄ£Ê½
TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure); //¸ù¾ÝTIM_TimeBaseInitStructÖÐÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯TIMxµÄÊ±¼ä»ùÊýµ¥Î»

//³õÊ¼»¯TIM4 Channel2 PWMÄ£Ê½
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2; //Ñ¡Ôñ¶¨Ê±Æ÷Ä£Ê½:TIMÂö³å¿í¶Èµ÷ÖÆÄ£Ê½2
   TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //±È½ÏÊä³öÊ¹ÄÜ
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; //Êä³ö¼«ÐÔ:TIMÊä³ö±È½Ï¼«ÐÔµÍ ###//¸Ä¶¯¼«ÐÔ //###

TIM_OC1Init(TIM4, &TIM_OCInitStructure);  //¸ù¾ÝTÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯ÍâÉèTIM3 OC1
TIM_OC2Init(TIM4, &TIM_OCInitStructure);  //¸ù¾ÝTÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯ÍâÉèTIM3 OC2
TIM_OC3Init(TIM4, &TIM_OCInitStructure);  //¸ù¾ÝTÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯ÍâÉèTIM3 OC3
TIM_OC4Init(TIM4, &TIM_OCInitStructure);  //¸ù¾ÝTÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯ÍâÉèTIM3 OC4

TIM_OC1PreloadConfig(TIM4, TIM_OCPreload_Enable);  //Ê¹ÄÜTIM3ÔÚCCR1ÉÏµÄÔ¤×°ÔØ¼Ä´æÆ÷
   TIM_OC2PreloadConfig(TIM4, TIM_OCPreload_Enable);  //Ê¹ÄÜTIM3ÔÚCCR2ÉÏµÄÔ¤×°ÔØ¼Ä´æÆ÷
   TIM_OC3PreloadConfig(TIM4, TIM_OCPreload_Enable);  //Ê¹ÄÜTIM3ÔÚCCR3ÉÏµÄÔ¤×°ÔØ¼Ä´æÆ÷
   TIM_OC4PreloadConfig(TIM4, TIM_OCPreload_Enable);  //Ê¹ÄÜTIM3ÔÚCCR4ÉÏµÄÔ¤×°ÔØ¼Ä´æÆ÷

TIM_Cmd(TIM4, ENABLE);  //Ê¹ÄÜTIM4

// ËÄ¸öÍ¨µÀÈ«²¿Ê¹ÄÜ  CH1--PB6  CH2--PB7  CH3--PB8 CH4--PB9

}

void TIM5_PWM_Init(u16 arr,u16 psc)
{
      GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
TIM_OCInitTypeDef  TIM_OCInitStructure;

RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM5, ENABLE); //Ê¹ÄÜ¶¨Ê±Æ÷2Ê±ÖÓ
   RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_AFIO, ENABLE);  //Ê¹ÄÜGPIOÍâÉèºÍAFIO¸´ÓÃ¹¦ÄÜÄ£¿éÊ±ÖÓ

//GPIO_PinRemapConfig(GPIO_FullRemap_TIM2, ENABLE); //Timer3²¿·ÖÖØÓ³Éä  TIM3_CH2->

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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3; //TIM_CH2
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;  //¸´ÓÃÍÆÍìÊä³ö
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);//³õÊ¼»¯GPIO

//³õÊ¼»¯TIM2
TIM_TimeBaseStructure.TIM_Period = arr; //ÉèÖÃÔÚÏÂÒ»¸ö¸üÐÂÊÂ¼þ×°Èë»î¶¯µÄ×Ô¶¯ÖØ×°ÔØ¼Ä´æÆ÷ÖÜÆÚµÄÖµ
TIM_TimeBaseStructure.TIM_Prescaler =psc; //ÉèÖÃÓÃÀ´×÷ÎªTIMxÊ±ÖÓÆµÂÊ³ýÊýµÄÔ¤·ÖÆµÖµ
TIM_TimeBaseStructure.TIM_ClockDivision = 0; //ÉèÖÃÊ±ÖÓ·Ö¸î:TDTS = Tck_tim
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;  //TIMÏòÉÏ¼ÆÊýÄ£Ê½
TIM_TimeBaseInit(TIM5, &TIM_TimeBaseStructure); //¸ù¾ÝTIM_TimeBaseInitStructÖÐÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯TIMxµÄÊ±¼ä»ùÊýµ¥Î»

//³õÊ¼»¯TIM2 Channel2 PWMÄ£Ê½
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2; //Ñ¡Ôñ¶¨Ê±Æ÷Ä£Ê½:TIMÂö³å¿í¶Èµ÷ÖÆÄ£Ê½2
   TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //±È½ÏÊä³öÊ¹ÄÜ
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; //Êä³ö¼«ÐÔ:TIMÊä³ö±È½Ï¼«ÐÔµÍ ###//¸Ä¶¯¼«ÐÔ //###

TIM_OC1Init(TIM5, &TIM_OCInitStructure);  //¸ù¾ÝTÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯ÍâÉèTIM3 OC1
TIM_OC2Init(TIM5, &TIM_OCInitStructure);  //¸ù¾ÝTÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯ÍâÉèTIM3 OC2
TIM_OC3Init(TIM5, &TIM_OCInitStructure);  //¸ù¾ÝTÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯ÍâÉèTIM3 OC3
TIM_OC4Init(TIM5, &TIM_OCInitStructure);  //¸ù¾ÝTÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯ÍâÉèTIM3 OC4

TIM_OC1PreloadConfig(TIM5, TIM_OCPreload_Enable);  //Ê¹ÄÜTIM3ÔÚCCR1ÉÏµÄÔ¤×°ÔØ¼Ä´æÆ÷
   TIM_OC2PreloadConfig(TIM5, TIM_OCPreload_Enable);  //Ê¹ÄÜTIM3ÔÚCCR2ÉÏµÄÔ¤×°ÔØ¼Ä´æÆ÷
   TIM_OC3PreloadConfig(TIM5, TIM_OCPreload_Enable);  //Ê¹ÄÜTIM3ÔÚCCR3ÉÏµÄÔ¤×°ÔØ¼Ä´æÆ÷
   TIM_OC4PreloadConfig(TIM5, TIM_OCPreload_Enable);  //Ê¹ÄÜTIM3ÔÚCCR4ÉÏµÄÔ¤×°ÔØ¼Ä´æÆ÷

TIM_Cmd(TIM5, ENABLE);  //Ê¹ÄÜTIM2

// ËÄ¸öÍ¨µÀÈ«²¿Ê¹ÄÜ  CH1--PA0  CH2--PA1  CH3--PA2 CH4--PA3


}
void TIM8_PWM_Init(u16 arr,u16 psc)
{

   GPIO_InitTypeDef GPIO_InitStructure;
      TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
      TIM_OCInitTypeDef  TIM_OCInitStructure;
      RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM8, ENABLE);//
      RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);  //??GPIO??????

//GPIO_PinRemapConfig(GPIO_FullRemap_TIM1, ENABLE); //Timer1ÍêÈ«ÖØÓ³Éä  TIM3_CH2->

B5

      GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9; //TIM1 CH1 CH2 CH3
      GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;  //??????
      GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
      GPIO_Init(GPIOC, &GPIO_InitStructure);

      TIM_TimeBaseStructure.TIM_Period = arr; //???????????????????????????
      TIM_TimeBaseStructure.TIM_Prescaler =psc; //??????TIMx???????????  ???
      TIM_TimeBaseStructure.TIM_ClockDivision = 0; //??????:TDTS = Tck_tim
      TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;  //TIM??????
      TIM_TimeBaseInit(TIM8, &TIM_TimeBaseStructure); //??TIM_TimeBaseInitStruct?????????TIMx???????

      TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; //???????:TIM????????1
      TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //??????
      TIM_OCInitStructure.TIM_Pulse = 0;                         //????????????????
      TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;    //????:TIM???????
      TIM_OC1Init(TIM8, &TIM_OCInitStructure);  //??TIM_OCInitStruct???????????TIMx
      TIM_OC2Init(TIM8, &TIM_OCInitStructure);  //??TIM_OCInitStruct???????????TIMx
      TIM_OC3Init(TIM8, &TIM_OCInitStructure);  //??TIM_OCInitStruct???????????TIMx
      TIM_OC4Init(TIM8, &TIM_OCInitStructure);  //??TIM_OCInitStruct???????????TIMx

      TIM_CtrlPWMOutputs(TIM8,ENABLE);       //MOE ?????

      TIM_OC1PreloadConfig(TIM8, TIM_OCPreload_Enable);  //CH1?????
      TIM_OC2PreloadConfig(TIM8, TIM_OCPreload_Enable);  //CH2?????
      TIM_OC3PreloadConfig(TIM8, TIM_OCPreload_Enable);  //CH3?????
      TIM_OC4PreloadConfig(TIM8, TIM_OCPreload_Enable);  //CH3?????


      TIM_ARRPreloadConfig(TIM8, ENABLE); //??TIMx?ARR????????
      TIM_Cmd(TIM8, ENABLE);  //??TIM1

// ËÄ¸öÍ¨µÀÈ«²¿Ê¹ÄÜ  CH1--PA8  CH2--PA9  CH3--PA10 CH4--PA11
//  ÍêÈ«ÖØÓ³Éäºó    CH1--PE9  CH2--PE11  CH3--PE13 CH4--PE14

}