stm32f301使用tim15产生PWM输出无反应，求解

轩宝提问时间：2017-9-6 14:50 /

源代码如下：
/**
  * @brief  ÅäÖÃTIM15¸´ÓÃÊä³öPWMÊ±ÓÃµ½µÄI/O
  * @param  ÎÞ
  * @retval ÎÞ
  */
static void TIM15_GPIO_Config(void)
{
/*¶¨ÒåÒ»¸öGPIO_InitTypeDefÀàÐÍµÄ½á¹¹Ìå*/
GPIO_InitTypeDef GPIO_InitStructure;

/*¿ªÆôµç»úÏà¹ØµÄGPIOÍâÉèÊ±ÖÓ*/
RCC_AHBPeriphClockCmd(MOTOR_TIM_GPIOA_CLK, ENABLE);

GPIO_PinAFConfig(MOTOR_P_GPIO_PORT,MOTOR_P_PINSOURCE,MOTOR_P_AF);
GPIO_PinAFConfig(MOTOR_N_GPIO_PORT,MOTOR_N_PINSOURCE,MOTOR_N_AF);

/*µç»úÕý¼«*/
GPIO_InitStructure.GPIO_Pin = MOTOR_P_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(MOTOR_P_GPIO_PORT, &GPIO_InitStructure);

/*µç»ú¸º¼«*/
GPIO_InitStructure.GPIO_Pin = MOTOR_N_PIN;
GPIO_Init(MOTOR_N_GPIO_PORT, &GPIO_InitStructure);
// GPIO_InitStructure.GPIO_Pin = MOTOR_N_PIN;
// GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
// GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
// GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
// GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
// GPIO_Init(MOTOR_N_GPIO_PORT, &GPIO_InitStructure);
GPIO_SetBits(MOTOR_P_GPIO_PORT,MOTOR_P_PIN);
GPIO_ResetBits(MOTOR_N_GPIO_PORT,MOTOR_N_PIN);

}

/**
  * @brief  ÅäÖÃMOTOR_TIMxÊä³öµÄPWMÐÅºÅµÄÄ£Ê½£¬ÈçÖÜÆÚ¡¢¼«ÐÔ
  * @param  ÎÞ
  * @retval ÎÞ
  */
static void TIM15_Mode_Config(void)
{
TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
TIM_OCInitTypeDef  TIM_OCInitStructure;

// ¿ªÆôTIMx_CLK,x[2,3,4,5]
  MOTOR_TIM_APBxClock_FUN(MOTOR_TIM_CLK, ENABLE);

  /* ÀÛ¼Æ TIM_Period¸öºó²úÉúÒ»¸ö¸üÐÂ»òÕßÖÐ¶Ï*/
  TIM_TimeBaseStructure.TIM_Period = 256-1;    //µ±¶¨Ê±Æ÷´Ó0¼ÆÊýµ½255£¬¼´Îª256´Î£¬ÎªÒ»¸ö¶¨Ê±ÖÜÆÚ

//¶¨Ê±Æ÷Ê±ÖÓÔ´TIMxCLK = 2 * PCLK1
  // PCLK1 = HCLK / 4
  // => TIMxCLK = HCLK / 2 = SystemCoreClock /2
// ¶¨Ê±Æ÷ÆµÂÊÎª = TIMxCLK/(TIM_Prescaler+1) = (SystemCoreClock /2)/((SystemCoreClock/2)/1000000)*30 = 1000000/30 = 1/30MHz

/*»ù±¾¶¨Ê±Æ÷ÅäÖÃTIM_Prescaler¸ù¾ÝÐ§¹ûÀ´ÉèÖÃ¼´¿É£¬ÖÐ¶ÏÖÜÆÚÐ¡ µÆÉÁË¸¿ì£¬´óÔòÉÁË¸»ºÂý*/
TIM_TimeBaseStructure.TIM_Prescaler = 1000;//((SystemCoreClock/2)/1000000)*30-1;
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV2 ;    //ÉèÖÃÊ±ÖÓ·ÖÆµÏµÊý£º²»·ÖÆµ(ÕâÀïÓÃ²»µ½)
  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;  //ÏòÉÏ¼ÆÊýÄ£Ê½

// ³õÊ¼»¯¶¨Ê±Æ÷TIMx, x[2,3,4,5]
TIM_TimeBaseInit(MOTOR_TIM, &TIM_TimeBaseStructure);

/*PWMÄ£Ê½ÅäÖÃ*/
/* PWM1 Mode configuration: Channel1 */
  TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;         //ÅäÖÃÎªPWMÄ£Ê½1
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //Ê¹ÄÜÊä³ö
  TIM_OCInitStructure.TIM_Pulse = 100;       //ÉèÖÃ³õÊ¼PWMÂö³å¿í¶ÈÎª0
  TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;       //µ±¶¨Ê±Æ÷¼ÆÊýÖµÐ¡ÓÚCCR_ValÊ±ÎªµÍµçÆ½
  //Ê¹ÄÜÍ¨µÀ
  MOTOR_P_TIM_OCxInit(MOTOR_TIM, &TIM_OCInitStructure);
/*Ê¹ÄÜÍ¨µÀÖØÔØ*/
MOTOR_P_TIM_OCxPreloadConfig(MOTOR_TIM, TIM_OCPreload_Enable);

/* PWM1 Mode configuration: Channel2 */
  TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;         //ÅäÖÃÎªPWMÄ£Ê½1
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //Ê¹ÄÜÊä³ö
  TIM_OCInitStructure.TIM_Pulse = 100;       //ÉèÖÃ³õÊ¼PWMÂö³å¿í¶ÈÎª0
  TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;       //µ±¶¨Ê±Æ÷¼ÆÊýÖµÐ¡ÓÚCCR_ValÊ±ÎªµÍµçÆ½
  //Ê¹ÄÜÍ¨µÀ
  MOTOR_N_TIM_OCxInit(MOTOR_TIM, &TIM_OCInitStructure);
/*Ê¹ÄÜÍ¨µÀÖØÔØ*/
MOTOR_N_TIM_OCxPreloadConfig(MOTOR_TIM, TIM_OCPreload_Enable);

TIM_ARRPreloadConfig(MOTOR_TIM, ENABLE); //Ê¹ÄÜTIMÖØÔØ¼Ä´æÆ÷ARR

// Ê¹ÄÜ¼ÆÊýÆ÷
TIM_Cmd(MOTOR_TIM, ENABLE);
}

/********************¶¨Ê±Æ÷Í¨µÀ**************************/

#define MOTOR_TIM            TIM15
#define MOTOR_TIM_CLK    RCC_APB2Periph_TIM15
#define MOTOR_TIM_APBxClock_FUN       RCC_APB2PeriphResetCmd

#define MOTOR_TIM_GPIOA_CLK          RCC_AHBPeriph_GPIOA

/************Õý¼«***************/

#define MOTOR_P_PIN                   GPIO_Pin_2
#define MOTOR_P_GPIO_PORT       GPIOA
#define MOTOR_P_PINSOURCE GPIO_PinSource2
#define MOTOR_P_AF GPIO_AF_9

#define  MOTOR_P_TIM_OCxInit                      TIM_OC1Init          //Í¨µÀ³õÊ¼»¯º¯Êý
#define  MOTOR_P_TIM_OCxPreloadConfig    TIM_OC1PreloadConfig //Í¨µÀÖØÔØÅäÖÃº¯Êý

//Í¨µÀ±È½Ï¼Ä´æÆ÷£¬ÒÔTIMx->CCRx·½Ê½¿É·ÃÎÊ¸Ã¼Ä´æÆ÷£¬ÉèÖÃÐÂµÄ±È½ÏÖµ£¬¿ØÖÆÕ¼¿Õ±È
//ÒÔºê·â×°ºó£¬Ê¹ÓÃÕâÖÖÐÎÊ½£ºMOTOR_TIMx->MOTOR_RED_CCRx £¬¿É·ÃÎÊ¸ÃÍ¨µÀµÄ±È½Ï¼Ä´æÆ÷
#define  MOTOR_P_CCRx                        CCR1

/************¸º¼«***************/
#define MOTOR_N_PIN                      GPIO_Pin_3
#define MOTOR_N_GPIO_PORT          GPIOA
#define MOTOR_N_PINSOURCE       GPIO_PinSource3
#define MOTOR_N_AF       GPIO_AF_9

#define  MOTOR_N_TIM_OCxInit                   TIM_OC2Init          //Í¨µÀ³õÊ¼»¯º¯Êý
#define  MOTOR_N_TIM_OCxPreloadConfig    TIM_OC2PreloadConfig //Í¨µÀÖØÔØÅäÖÃº¯Êý

//Í¨µÀ±È½Ï¼Ä´æÆ÷£¬ÒÔTIMx->CCRx·½Ê½¿É·ÃÎÊ¸Ã¼Ä´æÆ÷£¬ÉèÖÃÐÂµÄ±È½ÏÖµ£¬¿ØÖÆÕ¼¿Õ±È
//ÒÔºê·â×°ºó£¬Ê¹ÓÃÕâÖÖÐÎÊ½£ºMOTOR_TIMx->MOTOR_GREEN_CCRx £¬¿É·ÃÎÊ¸ÃÍ¨µÀµÄ±È½Ï¼Ä´æÆ÷
#define  MOTOR_N_CCRx                      CCR2

配置参数检查多次，没有发现有问题，求大哥大姐们看看问题出在哪里，谢谢了