STM32CubeMX学习--(6)USB大容量存储设备

CUBE配置

USB_OTG_FS配置

记得勾选NVIC中断使能。

USB_DEVICE配置

clock配置

修改代码

主要修改usbd_storage_if.c文件

/* USER CODE BEGIN Header */

/**

  ******************************************************************************

  * @file           : usbd_storage_if.c

  * @version        : v1.0_Cube

  * @brief          : Memory management layer.

  ******************************************************************************

  * @attention

  *

  *

© Copyright (c) 2020 STMicroelectronics.

  * All rights reserved.

  *

  * This software component is licensed by ST under Ultimate Liberty license

  * SLA0044, the 'License'; You may not use this file except in compliance with

  * the License. You may obtain a copy of the License at:

  *                             www.st.com/SLA0044

  *

  ******************************************************************************

  */

/* USER CODE END Header */

/* Includes ------------------------------------------------------------------*/

#include 'usbd_storage_if.h'

/* USER CODE BEGIN INCLUDE */

#include 'W25QXX.h'

/* USER CODE END INCLUDE */

/* Private typedef -----------------------------------------------------------*/

/* Private define ------------------------------------------------------------*/

/* Private macro -------------------------------------------------------------*/

/* USER CODE BEGIN PV */

/* Private variables ---------------------------------------------------------*/

/* USER CODE END PV */

/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY

  * @brief Usb device.

  * @{

  */

/** @defgroup USBD_STORAGE

  * @brief Usb mass storage device module

  * @{

  */

/** @defgroup USBD_STORAGE_Private_TypesDefinitions

  * @brief Private types.

  * @{

  */

/* USER CODE BEGIN PRIVATE_TYPES */

/* USER CODE END PRIVATE_TYPES */

/**

  * @}

  */

/** @defgroup USBD_STORAGE_Private_Defines

  * @brief Private defines.

  * @{

  */

#define STORAGE_LUN_NBR                  1

#define STORAGE_BLK_NBR                  W25Q128FV_SUBSECTOR_SIZE-224

#define STORAGE_BLK_SIZ                  W25Q128FV_SUBSECTOR_SIZE

/* USER CODE BEGIN PRIVATE_DEFINES */

//#define STORAGE_BLK_NBR                  (W25Q128FV_SUBSECTOR_SIZE)

//#define STORAGE_BLK_SIZ                  W25Q128FV_SUBSECTOR_SIZE

/* USER CODE END PRIVATE_DEFINES */

/**

  * @}

  */

/** @defgroup USBD_STORAGE_Private_Macros

  * @brief Private macros.

  * @{

  */

/* USER CODE BEGIN PRIVATE_MACRO */

/* USER CODE END PRIVATE_MACRO */

/**

  * @}

  */

/** @defgroup USBD_STORAGE_Private_Variables

  * @brief Private variables.

  * @{

  */

/* USER CODE BEGIN INQUIRY_DATA_FS */

/** USB Mass storage Standard Inquiry Data. */

const int8_t STORAGE_Inquirydata_FS[] = {/* 36 */

  /* LUN 0 */

  0x00,

  0x80,

  0x02,

  0x02,

  (STANDARD_INQUIRY_DATA_LEN - 5),

  0x00,

  0x00,

  0x00,

  'S', 'T', 'M', ' ', ' ', ' ', ' ', ' ', /* Manufacturer : 8 bytes */

  'P', 'r', 'o', 'd', 'u', 'c', 't', ' ', /* Product      : 16 Bytes */

  ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ',

  '0', '.', '0' ,'1'                      /* Version      : 4 Bytes */

}; 

/* USER CODE END INQUIRY_DATA_FS */

/* USER CODE BEGIN PRIVATE_VARIABLES */

/* USER CODE END PRIVATE_VARIABLES */

/**

  * @}

  */

/** @defgroup USBD_STORAGE_Exported_Variables

  * @brief Public variables.

  * @{

  */

extern USBD_HandleTypeDef hUsbDeviceFS;

/* USER CODE BEGIN EXPORTED_VARIABLES */

/* USER CODE END EXPORTED_VARIABLES */

/**

  * @}

  */

/** @defgroup USBD_STORAGE_Private_FunctionPrototypes

  * @brief Private functions declaration.

  * @{

  */

static int8_t STORAGE_Init_FS(uint8_t lun);

static int8_t STORAGE_GetCapacity_FS(uint8_t lun, uint32_t *block_num, uint16_t *block_size);

static int8_t STORAGE_IsReady_FS(uint8_t lun);

static int8_t STORAGE_IsWriteProtected_FS(uint8_t lun);

static int8_t STORAGE_Read_FS(uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_t blk_len);

static int8_t STORAGE_Write_FS(uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_t blk_len);

static int8_t STORAGE_GetMaxLun_FS(void);

/* USER CODE BEGIN PRIVATE_FUNCTIONS_DECLARATION */

/* USER CODE END PRIVATE_FUNCTIONS_DECLARATION */

/**

  * @}

  */

USBD_StorageTypeDef USBD_Storage_Interface_fops_FS =

{

  STORAGE_Init_FS,

  STORAGE_GetCapacity_FS,

  STORAGE_IsReady_FS,

  STORAGE_IsWriteProtected_FS,

  STORAGE_Read_FS,

  STORAGE_Write_FS,

  STORAGE_GetMaxLun_FS,

  (int8_t *)STORAGE_Inquirydata_FS

};

/* Private functions ---------------------------------------------------------*/

/**

  * @brief  Initializes over USB FS IP

  * @param  lun:

  * @retval USBD_OK if all operations are OK else USBD_FAIL

  */

int8_t STORAGE_Init_FS(uint8_t lun)

{

  /* USER CODE BEGIN 2 */

BSP_W25Qx_Init();

  return (USBD_OK);

  /* USER CODE END 2 */

}

/**

  * @brief  .

  * @param  lun: .

  * @param  block_num: .

  * @param  block_size: .

  * @retval USBD_OK if all operations are OK else USBD_FAIL

  */

int8_t STORAGE_GetCapacity_FS(uint8_t lun, uint32_t *block_num, uint16_t *block_size)

{

  /* USER CODE BEGIN 3 */

  *block_num  = STORAGE_BLK_NBR;

  *block_size = STORAGE_BLK_SIZ;

  return (USBD_OK);

  /* USER CODE END 3 */

}

/**

  * @brief  .

  * @param  lun: .

  * @retval USBD_OK if all operations are OK else USBD_FAIL

  */

int8_t STORAGE_IsReady_FS(uint8_t lun)

{

  /* USER CODE BEGIN 4 */

  return (USBD_OK);

  /* USER CODE END 4 */

}

/**

  * @brief  .

  * @param  lun: .

  * @retval USBD_OK if all operations are OK else USBD_FAIL

  */

int8_t STORAGE_IsWriteProtected_FS(uint8_t lun)

{

  /* USER CODE BEGIN 5 */

  return (USBD_OK);

  /* USER CODE END 5 */

}

/**

  * @brief  .

  * @param  lun: .

  * @retval USBD_OK if all operations are OK else USBD_FAIL

  */

int8_t STORAGE_Read_FS(uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_t blk_len)

{

  /* USER CODE BEGIN 6 */

if(!blk_len)

return USBD_OK;

for(;blk_len>0;blk_len--)

{

BSP_W25Qx_Read(buf,blk_addr*STORAGE_BLK_SIZ,STORAGE_BLK_SIZ);

blk_addr++;

buf+=STORAGE_BLK_SIZ;

}

  return (USBD_OK);

  /* USER CODE END 6 */

}

/**

  * @brief  .

  * @param  lun: .

  * @retval USBD_OK if all operations are OK else USBD_FAIL

  */

int8_t STORAGE_Write_FS(uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_t blk_len)

{

  /* USER CODE BEGIN 7 */

if(!blk_len)

return USBD_OK;

for(;blk_len>0;blk_len--)

{

BSP_W25Qx_Erase_Block(blk_addr*STORAGE_BLK_SIZ);

BSP_W25Qx_Write(buf,blk_addr*STORAGE_BLK_SIZ,STORAGE_BLK_SIZ);

blk_addr++;

buf+=STORAGE_BLK_SIZ;

}

  return (USBD_OK);

  /* USER CODE END 7 */

}

/**

  * @brief  .

  * @param  None

  * @retval .

  */

int8_t STORAGE_GetMaxLun_FS(void)

{

  /* USER CODE BEGIN 8 */

  return (STORAGE_LUN_NBR - 1);

  /* USER CODE END 8 */

}

/* USER CODE BEGIN PRIVATE_FUNCTIONS_IMPLEMENTATION */

/* USER CODE END PRIVATE_FUNCTIONS_IMPLEMENTATION */

/**

  * @}

  */

/**

  * @}

  */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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