新手求助，STM32F207使用官方例程移植后能进入中断，但是仍然无法枚举成功

只看该作者 · 2014-11-25 16:47

main中的初始化：
USBD_Init(&USB_OTG_dev,
#ifdef USE_USB_OTG_HS
         USB_OTG_HS_CORE_ID,
#else
         USB_OTG_FS_CORE_ID,
#endif
         &USR_desc,
         &USBD_HID_cb,
         &USR_cb);

USBD_Init函数：

void USBD_Init(USB_OTG_CORE_HANDLE *pdev,
            USB_OTG_CORE_ID_TypeDef coreID,
            USBD_DEVICE *pDevice,
            USBD_Class_cb_TypeDef *class_cb,
            USBD_Usr_cb_TypeDef *usr_cb)
{
  /* Hardware Init */
printf("\r\nUSBD_Init\r\n");
  USB_OTG_BSP_Init(pdev);  //º¯ÊýÊ¹ÄÜUSBµÄÊ±ÖÓ

  USBD_DeInit(pdev); //º¯ÊýÃ»×÷ÓÃ

  /*Register class and user callbacks */
  //USBµÄ¼Ä´æÆ÷½øÐÐÅäÖÃ£¬ÒÔ¼°Ê¹ÄÜUSBµÄÖÐ¶Ï
  pdev->dev.class_cb = class_cb;
  pdev->dev.usr_cb = usr_cb;
  pdev->dev.usr_device = pDevice;

  /* set USB OTG core params */
  DCD_Init(pdev , coreID);

  /* Upon Init call usr callback */
  pdev->dev.usr_cb->Init();

  /* Enable Interrupts */
  USB_OTG_BSP_EnableInterrupt(pdev);
}

USB_OTG_BSP_Init时钟函数：

void USB_OTG_BSP_Init(USB_OTG_CORE_HANDLE *pdev)
{GPIO_InitTypeDef GPIO_InitStructure;
EXTI_InitTypeDef EXTI_InitStructure;
  NVIC_InitTypeDef NVIC_InitStructure;
RCC_AHB1PeriphClockCmd( RCC_AHB1Periph_GPIOA , ENABLE);

  /* Configure SOF VBUS ID DM DP Pins */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8  |
   GPIO_Pin_9  |
   GPIO_Pin_11 |
      GPIO_Pin_12;

  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
  GPIO_Init(GPIOA, &GPIO_InitStructure);

  GPIO_PinAFConfig(GPIOA,GPIO_PinSource8,GPIO_AF_OTG1_FS) ;
  //GPIO_PinAFConfig(GPIOA,GPIO_PinSource9,GPIO_AF_OTG1_FS) ; //不知道为什么不注销这句程序就无法继续运行？？？？
  GPIO_PinAFConfig(GPIOA,GPIO_PinSource11,GPIO_AF_OTG1_FS) ;
  GPIO_PinAFConfig(GPIOA,GPIO_PinSource12,GPIO_AF_OTG1_FS) ;

  /* this for ID line debug */

  #if 1
  GPIO_InitStructure.GPIO_Pin =  GPIO_Pin_10;
  GPIO_InitStructure.GPIO_OType = GPIO_OType_OD;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP ;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
  GPIO_Init(GPIOA, &GPIO_InitStructure);
  GPIO_PinAFConfig(GPIOA,GPIO_PinSource10,GPIO_AF_OTG1_FS) ;
#endif

  RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
  RCC_AHB2PeriphClockCmd(RCC_AHB2Periph_OTG_FS, ENABLE) ;

RCC_APB1PeriphResetCmd(RCC_APB1Periph_PWR, ENABLE);

  /* Configure the Key button in EXTI mode */
//STM_EVAL_PBInit(Button_KEY, Mode_EXTI);//xwq
#ifdef USB_OTG_FS_LOW_PWR_MGMT_SUPPORT
  EXTI_ClearITPendingBit(EXTI_Line18);

  EXTI_InitStructure.EXTI_Line = EXTI_Line18;
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;
  EXTI_Init(&EXTI_InitStructure);

  EXTI_ClearITPendingBit(EXTI_Line18);

  NVIC_InitStructure.NVIC_IRQChannel = OTG_FS_WKUP_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);

  EXTI_ClearITPendingBit(EXTI_Line18);
#endif

#ifdef USB_OTG_HS_LOW_PWR_MGMT_SUPPORT
  EXTI_ClearITPendingBit(EXTI_Line20);

  EXTI_InitStructure.EXTI_Line = EXTI_Line20;
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;
  EXTI_Init(&EXTI_InitStructure);

  EXTI_ClearITPendingBit(EXTI_Line20);

  NVIC_InitStructure.NVIC_IRQChannel = OTG_HS_WKUP_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);

  EXTI_ClearITPendingBit(EXTI_Line20);
#endif
}

只看该作者 · 2014-11-25 16:49

USB电路图：