小弟去下載USB的3.3.0的資料庫，裡面有EVAL的Virtual COM Port程式，想要一直到我的板子上，對照了電路圖，小弟的板子不是市面上的開發板，用的IC是STM32F102R8，USB的PULL UP控制是在PB9，照原本的是設定在platform_config.h裡設定是PD9，把它修改成PB9後變成一直在卡在USB中斷那邊，後來追到stm3210b_eval.h裡的PB9有重複定義把它改成PD9，platform_config.h裡設定是PB9，但是還是卡住在USB中斷，修改的部分程式如下： stm3210b_eval.h #define BUTTONn                          8 /**
 * @brief Wakeup push-button
 */
#define WAKEUP_BUTTON_PIN                GPIO_Pin_0
#define WAKEUP_BUTTON_GPIO_PORT          GPIOA
#define WAKEUP_BUTTON_GPIO_CLK           RCC_APB2Periph_GPIOA
#define WAKEUP_BUTTON_EXTI_LINE          EXTI_Line0
#define WAKEUP_BUTTON_EXTI_PORT_SOURCE   GPIO_PortSourceGPIOA
#define WAKEUP_BUTTON_EXTI_PIN_SOURCE    GPIO_PinSource0
#define WAKEUP_BUTTON_EXTI_IRQn          EXTI0_IRQn
/**
 * @brief Tamper push-button
 */
#define TAMPER_BUTTON_PIN                GPIO_Pin_13
#define TAMPER_BUTTON_GPIO_PORT          GPIOC
#define TAMPER_BUTTON_GPIO_CLK           RCC_APB2Periph_GPIOC
#define TAMPER_BUTTON_EXTI_LINE          EXTI_Line13
#define TAMPER_BUTTON_EXTI_PORT_SOURCE   GPIO_PortSourceGPIOC
#define TAMPER_BUTTON_EXTI_PIN_SOURCE    GPIO_PinSource13
#define TAMPER_BUTTON_EXTI_IRQn          EXTI15_10_IRQn
/**
 * @brief Key push-button
 */
#define KEY_BUTTON_PIN                   GPIO_Pin_9
#define KEY_BUTTON_GPIO_PORT             GPIOD------>B改D
#define KEY_BUTTON_GPIO_CLK              RCC_APB2Periph_GPIOD------>B改D
#define KEY_BUTTON_EXTI_LINE             EXTI_Line9
#define KEY_BUTTON_EXTI_PORT_SOURCE      GPIO_PortSourceGPIOD-->B改D
#define KEY_BUTTON_EXTI_PIN_SOURCE       GPIO_PinSource9
#define KEY_BUTTON_EXTI_IRQn             EXTI9_5_IRQn
/**
 * @brief Joystick Right push-button
 */
#define RIGHT_BUTTON_PIN                 GPIO_Pin_0
#define RIGHT_BUTTON_GPIO_PORT           GPIOE
#define RIGHT_BUTTON_GPIO_CLK            RCC_APB2Periph_GPIOE
#define RIGHT_BUTTON_EXTI_LINE           EXTI_Line0
#define RIGHT_BUTTON_EXTI_PORT_SOURCE    GPIO_PortSourceGPIOE
#define RIGHT_BUTTON_EXTI_PIN_SOURCE     GPIO_PinSource0
#define RIGHT_BUTTON_EXTI_IRQn           EXTI0_IRQn
/**
 * @brief Joystick Left push-button
 */
#define LEFT_BUTTON_PIN                  GPIO_Pin_1
#define LEFT_BUTTON_GPIO_PORT            GPIOE
#define LEFT_BUTTON_GPIO_CLK             RCC_APB2Periph_GPIOE
#define LEFT_BUTTON_EXTI_LINE            EXTI_Line1
#define LEFT_BUTTON_EXTI_PORT_SOURCE     GPIO_PortSourceGPIOE
#define LEFT_BUTTON_EXTI_PIN_SOURCE      GPIO_PinSource1
#define LEFT_BUTTON_EXTI_IRQn            EXTI1_IRQn 
/**
 * @brief Joystick Up push-button
 */
#define UP_BUTTON_PIN                    GPIO_Pin_8
#define UP_BUTTON_GPIO_PORT              GPIOD
#define UP_BUTTON_GPIO_CLK               RCC_APB2Periph_GPIOD
#define UP_BUTTON_EXTI_LINE              EXTI_Line8
#define UP_BUTTON_EXTI_PORT_SOURCE       GPIO_PortSourceGPIOD
#define UP_BUTTON_EXTI_PIN_SOURCE        GPIO_PinSource8
#define UP_BUTTON_EXTI_IRQn              EXTI9_5_IRQn 
/**
 * @brief Joystick Down push-button
 */ 
#define DOWN_BUTTON_PIN                  GPIO_Pin_14
#define DOWN_BUTTON_GPIO_PORT            GPIOD
#define DOWN_BUTTON_GPIO_CLK             RCC_APB2Periph_GPIOD
#define DOWN_BUTTON_EXTI_LINE            EXTI_Line14
#define DOWN_BUTTON_EXTI_PORT_SOURCE     GPIO_PortSourceGPIOD
#define DOWN_BUTTON_EXTI_PIN_SOURCE      GPIO_PinSource14
#define DOWN_BUTTON_EXTI_IRQn            EXTI15_10_IRQn 
/**
 * @brief Joystick Sel push-button
 */
#define SEL_BUTTON_PIN                   GPIO_Pin_12
#define SEL_BUTTON_GPIO_PORT             GPIOD
#define SEL_BUTTON_GPIO_CLK              RCC_APB2Periph_GPIOD
#define SEL_BUTTON_EXTI_LINE             EXTI_Line12
#define SEL_BUTTON_EXTI_PORT_SOURCE      GPIO_PortSourceGPIOD
#define SEL_BUTTON_EXTI_PIN_SOURCE       GPIO_PinSource12
#define SEL_BUTTON_EXTI_IRQn             EXTI15_10_IRQn       platform_config.h #ifdef USE_STM3210B_EVAL
  #define USB_DISCONNECT                      GPIOB  ----->D改B
  #define USB_DISCONNECT_PIN                  GPIO_Pin_9
  #define RCC_APB2Periph_GPIO_DISCONNECT      RCC_APB2Periph_GPIOB
----->D改B
  #define EVAL_COM1_IRQHandler                USART1_IRQHandler #elif defined (USE_STM3210E_EVAL)
  #define USB_DISCONNECT                      GPIOB 
  #define USB_DISCONNECT_PIN                  GPIO_Pin_14
  #define RCC_APB2Periph_GPIO_DISCONNECT      RCC_APB2Periph_GPIOB
  #define EVAL_COM1_IRQHandler                USART1_IRQHandler #elif defined (USE_STM3210C_EVAL)
  #define USB_DISCONNECT                      0 
  #define USB_DISCONNECT_PIN                  0
  #define RCC_APB2Periph_GPIO_DISCONNECT      0
  #define EVAL_COM1_IRQHandler                USART2_IRQHandler     main.c int main(void)
{
  Set_System();
  USB_Interrupts_Config();----------->程式卡死在這邊
  Set_USBClock();
  USB_Init();
  
  while (1)
  {
  }
}   我進去跑他是一直重複執行USB_Istr(); 單步執行看他跑的情況是 void USB_Istr(void)
{   wIstr = _GetISTR(); #if (IMR_MSK & ISTR_SOF)
  if (wIstr & ISTR_SOF & wInterrupt_Mask)
  {   
    _SetISTR((uint16_t)CLR_SOF);
    bIntPackSOF++; #ifdef SOF_CALLBACK
    SOF_Callback();
#endif
  }
#endif
  /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/ 
 
#if (IMR_MSK & ISTR_CTR)
  if (wIstr & ISTR_CTR & wInterrupt_Mask)
  {
    /* servicing of the endpoint correct transfer interrupt */
    /* clear of the CTR flag into the sub */
    CTR_LP();---------------------------------------------------------------------------------------->第一步
#ifdef CTR_CALLBACK
    CTR_Callback();
#endif
  }
#endif
  /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/ 
#if (IMR_MSK & ISTR_RESET)
  if (wIstr & ISTR_RESET & wInterrupt_Mask)-------------------------------------------------->第二步
  {
    _SetISTR((uint16_t)CLR_RESET);
    Device_Property.Reset();
#ifdef RESET_CALLBACK
    RESET_Callback();
#endif
  }
#endif
  /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_DOVR)
  if (wIstr & ISTR_DOVR & wInterrupt_Mask)
  {
    _SetISTR((uint16_t)CLR_DOVR);
#ifdef DOVR_CALLBACK
    DOVR_Callback();
#endif
  }
#endif
  /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_ERR)
  if (wIstr & ISTR_ERR & wInterrupt_Mask)
  {
    _SetISTR((uint16_t)CLR_ERR);
#ifdef ERR_CALLBACK
    ERR_Callback();
#endif
  }
#endif
  /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_WKUP)
  if (wIstr & ISTR_WKUP & wInterrupt_Mask)
  {
    _SetISTR((uint16_t)CLR_WKUP);
    Resume(RESUME_EXTERNAL);
#ifdef WKUP_CALLBACK
    WKUP_Callback();
#endif
  }
#endif
  /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_SUSP)
  if (wIstr & ISTR_SUSP & wInterrupt_Mask)
  {     /* check if SUSPEND is possible */
    if (fSuspendEnabled)
    {
      Suspend();
    }
    else
    {
      /* if not possible then resume after xx ms */
      Resume(RESUME_LATER);
    }
    /* clear of the ISTR bit must be done after setting of CNTR_FSUSP */
    _SetISTR((uint16_t)CLR_SUSP);
#ifdef SUSP_CALLBACK
    SUSP_Callback();
#endif
  }
#endif
  /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/ #if (IMR_MSK & ISTR_ESOF)
  if (wIstr & ISTR_ESOF & wInterrupt_Mask)
  {
    _SetISTR((uint16_t)CLR_ESOF);
    /* resume handling timing is made with ESOFs */
    Resume(RESUME_ESOF); /* request without change of the machine state */ #ifdef ESOF_CALLBACK
    ESOF_Callback();
#endif
  }
#endif
}------------------------------------------------------------------------------------------------------------------->第三步 第二步到第三步之間都沒有進去就結束了，下一次再從第一步來，就這樣卡死在這 拜託大大幫我看看是什麼問題 此帖出自小平头技术问答