使用STM32CubeMX生成USB_HOST_HID工程

使用开发板为STM32F105开发板。

原本想将具体步骤给写出来。时间有限。直接将STM32F105_USBH_HID.IOC上传files.cnblogs.com/files/libra13179/STM32F105_USBH_HID.zip

[需要注意开发板使用的外部晶振为25mhz]

下面给出主要修改地方

usbh_conf.c中修改

/**
  * @brief  USBH_LL_DriverVBUS
  *         Drive VBUS.
  * @param  phost: Host handle
  * @param  state : VBUS state
  *          This parameter can be one of the these values:
  *           0 : VBUS Active
  *           1 : VBUS Inactive
  * @retval Status
  */
USBH_StatusTypeDef  USBH_LL_DriverVBUS (USBH_HandleTypeDef *phost, uint8_t state)
{ 

  /* USER CODE BEGIN 0 */
  /* USER CODE END 0*/
  if (phost->id == HOST_FS)
  {
    if (state == )
    {
      /* Drive high Charge pump */
      /* ToDo: Add IOE driver control */
      /* USER CODE BEGIN DRIVE_HIGH_CHARGE_FOR_FS */
      HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9, GPIO_PIN_SET);
      /* USER CODE END DRIVE_HIGH_CHARGE_FOR_FS */
    }
    else
    {
      /* Drive low Charge pump */
      /* ToDo: Add IOE driver control */
      /* USER CODE BEGIN DRIVE_LOW_CHARGE_FOR_FS */
      HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9, GPIO_PIN_RESET);
      /* USER CODE END DRIVE_LOW_CHARGE_FOR_FS */
    }
  }
  HAL_Delay();
  return USBH_OK;
}

在 usbh_conf.H修改使用rtt来打印信息

 /* DEBUG macros */  

#ifdef RTT_LOG_ENABLED

#include "rtt_log.h"

    #if (USBH_DEBUG_LEVEL > 0)
    #define  USBH_UsrLog   logi
    #else
    #define USBH_UsrLog(...)
    #endif 

    #if (USBH_DEBUG_LEVEL > 1)

    #define  USBH_ErrLog    logw
    #else
    #define USBH_ErrLog(...)
    #endif 

    #if (USBH_DEBUG_LEVEL > 2)
    #define  USBH_DbgLog    loge
    #else
    #define USBH_DbgLog(...)
    #endif

#else

    #if (USBH_DEBUG_LEVEL > 0)
    #define  USBH_UsrLog(...)   printf(__VA_ARGS__);\
                                printf("\n");
    #else
    #define USBH_UsrLog(...)
    #endif 

    #if (USBH_DEBUG_LEVEL > 1)

    #define  USBH_ErrLog(...)   printf("ERROR: ") ;\
                                printf(__VA_ARGS__);\
                                printf("\n");
    #else
    #define USBH_ErrLog(...)
    #endif 

    #if (USBH_DEBUG_LEVEL > 2)
    #define  USBH_DbgLog(...)   printf("DEBUG : ") ;\
                                printf(__VA_ARGS__);\
                                printf("\n");
    #else
    #define USBH_DbgLog(...)
    #endif

#endif //RTT_LOG_ENABLED

好了现在下载测试

使用otg线将键盘和开发板连接

好了现在开始我们添加一下怎么识别键盘的按键信息。

在usb_host.c中添加下面代码

/* USER CODE BEGIN 1 */
void USBH_HID_EventCallback(USBH_HandleTypeDef *phost)
{
   HID_TypeTypeDef   type = HID_UNKNOWN;

   USBH_ErrLog("USBH_HID_EventCallback");

   type = USBH_HID_GetDeviceType(phost);

   switch(type)
   {
       case HID_KEYBOARD:
       {
            HID_KEYBD_Info_TypeDef *keyboard_info;

            char ascii;
            keyboard_info = USBH_HID_GetKeybdInfo(phost);

            if( keyboard_info != NULL )
            {
                ascii = USBH_HID_GetASCIICode(keyboard_info);
                if( ascii !=  )
                {
                    USBH_UsrLog("%c",ascii);
                }
            }
       }

       break;

       case HID_MOUSE:
       {
           //HID_MOUSE_Info_TypeDef *USBH_HID_GetMouseInfo(USBH_HandleTypeDef *phost)
       }
       break;

       default:
       break;
   }
}
/* USER CODE END 1 */

测试一下

现在测试鼠标

先在usb_host.c中添加下面代码

/* USER CODE BEGIN 1 */
void USBH_HID_EventCallback(USBH_HandleTypeDef *phost)
{
   HID_TypeTypeDef   type = HID_UNKNOWN;

   USBH_ErrLog("USBH_HID_EventCallback");

   type = USBH_HID_GetDeviceType(phost);

   switch(type)
   {
       case HID_KEYBOARD:
       {
            HID_KEYBD_Info_TypeDef *keyboard_info;

            char ascii;
            keyboard_info = USBH_HID_GetKeybdInfo(phost);

            if( keyboard_info != NULL )
            {
                ascii = USBH_HID_GetASCIICode(keyboard_info);
                if( ascii !=  )
                {
                    USBH_UsrLog("%c",ascii);
                }
            }
       }

       break;

       case HID_MOUSE:
        {

           HID_MOUSE_Info_TypeDef *mouse_info;
           mouse_info = USBH_HID_GetMouseInfo(phost);
           USBH_UsrLog("mouse_info X%d, Y%d ,button %d %d %d",mouse_info->x,mouse_info->y,mouse_info->buttons[2],mouse_info->buttons[1],mouse_info->buttons[0]);

       }
       break;

       default:
       break;
   }
}
/* USER CODE END 1 */