STM32 CubeMX

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前言

STM32 CubeMX 配置USB将STM32设置可以作为存储设备或者IAP升级功能

《使用内部Flash》——U盘

一、STM32 CubeMX 设置

USB时钟设置

USB使能

UBS功能选择

要注意：stm32f103c8t6内部Flash的1页为1024（1kb）

FATFS功能

二、代码部分

需要修改两个部分：usbd_storage_if.c文件和user_diskio.c文件

修改代码"usbd_storage_if.c"

/* USER CODE BEGIN Header */
/********************************************************************************* @file           : usbd_storage_if.c* @version        : v2.0_Cube* @brief          : Memory management layer.******************************************************************************* @attention** Copyright (c) 2023 STMicroelectronics.* All rights reserved.** This software is licensed under terms that can be found in the LICENSE file* in the root directory of this software component.* If no LICENSE file comes with this software, it is provided AS-IS.********************************************************************************/
/* USER CODE END Header *//* Includes ------------------------------------------------------------------*/
#include "usbd_storage_if.h"/* USER CODE BEGIN INCLUDE *//* 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     FLASH_SIZE                  128
#define     FMC_SECTOR_SIZE             1024
#define     FLASH_PAGE_NBR              64
#define     FLASH_START_ADDR        	(0x08000000+((FLASH_SIZE-FLASH_PAGE_NBR)*1024))#define STORAGE_LUN_NBR                  1
#define STORAGE_BLK_NBR                  0x10000
#define STORAGE_BLK_SIZ                  0x200/* USER CODE BEGIN PRIVATE_DEFINES *//* 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 */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 */
//}
//修改1
int8_t STORAGE_GetCapacity_FS(uint8_t lun, uint32_t *block_num, uint16_t *block_size)
{/* USER CODE BEGIN 3 */*block_num  = FLASH_PAGE_NBR;*block_size = FLASH_PAGE_SIZE;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 */
//  return (USBD_OK);
//  /* USER CODE END 6 */
//}
//修改2
int8_t STORAGE_Read_FS(uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_t blk_len)
{/* USER CODE BEGIN 6 */if(lun == 0){memcpy(buf,(uint8_t *)(FLASH_START_ADDR + blk_addr*FLASH_PAGE_SIZE),blk_len*FLASH_PAGE_SIZE);return USBD_OK;}return USBD_FAIL;/* 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 */
//  return (USBD_OK);
//  /* USER CODE END 7 */
//}
//修改3
int8_t STORAGE_Write_FS(uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_t blk_len)
{/* USER CODE BEGIN 7 */uint16_t i;uint32_t PageError = 0;FLASH_EraseInitTypeDef Flash;if(lun == 0){HAL_FLASH_Unlock();Flash.TypeErase = FLASH_TYPEERASE_PAGES;Flash.PageAddress = FLASH_START_ADDR + blk_addr*FLASH_PAGE_SIZE ;Flash.NbPages = blk_len;HAL_FLASHEx_Erase(&Flash, &PageError);for(i=0;i<blk_len*FLASH_PAGE_SIZE;i+=4){HAL_FLASH_Program(FLASH_TYPEPROGRAM_WORD,FLASH_START_ADDR + blk_addr*FLASH_PAGE_SIZE + i , *(uint32_t *)(&buf[i]));}HAL_FLASH_Lock();return USBD_OK;}return USBD_FAIL;/* 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 *//*** @}*//*** @}*/

修改代码"user_diskio.c"

/* USER CODE BEGIN Header */
/********************************************************************************* @file    user_diskio.c* @brief   This file includes a diskio driver skeleton to be completed by the user.******************************************************************************* @attention** Copyright (c) 2023 STMicroelectronics.* All rights reserved.** This software is licensed under terms that can be found in the LICENSE file* in the root directory of this software component.* If no LICENSE file comes with this software, it is provided AS-IS.********************************************************************************//* USER CODE END Header */#ifdef USE_OBSOLETE_USER_CODE_SECTION_0
/** Warning: the user section 0 is no more in use (starting from CubeMx version 4.16.0)* To be suppressed in the future.* Kept to ensure backward compatibility with previous CubeMx versions when* migrating projects.* User code previously added there should be copied in the new user sections before* the section contents can be deleted.*/
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
#endif/* USER CODE BEGIN DECL *//* Includes ------------------------------------------------------------------*/
#include <string.h>
#include "ff_gen_drv.h"/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*//* Private variables ---------------------------------------------------------*/
/* Disk status */
static volatile DSTATUS Stat = STA_NOINIT;
#define     FLASH_SIZE                  128
#define     FMC_SECTOR_SIZE             1024
#define     FLASH_PAGE_NBR              64
#define     FLASH_START_ADDR        	(0x08000000+((FLASH_SIZE-FLASH_PAGE_NBR)*1024))
/* USER CODE END DECL *//* Private function prototypes -----------------------------------------------*/
DSTATUS USER_initialize (BYTE pdrv);
DSTATUS USER_status (BYTE pdrv);
DRESULT USER_read (BYTE pdrv, BYTE *buff, DWORD sector, UINT count);
#if _USE_WRITE == 1DRESULT USER_write (BYTE pdrv, const BYTE *buff, DWORD sector, UINT count);
#endif /* _USE_WRITE == 1 */
#if _USE_IOCTL == 1DRESULT USER_ioctl (BYTE pdrv, BYTE cmd, void *buff);
#endif /* _USE_IOCTL == 1 */Diskio_drvTypeDef  USER_Driver =
{USER_initialize,USER_status,USER_read,
#if  _USE_WRITEUSER_write,
#endif  /* _USE_WRITE == 1 */
#if  _USE_IOCTL == 1USER_ioctl,
#endif /* _USE_IOCTL == 1 */
};/* Private functions ---------------------------------------------------------*//*** @brief  Initializes a Drive* @param  pdrv: Physical drive number (0..)* @retval DSTATUS: Operation status*/
DSTATUS USER_initialize (BYTE pdrv           /* Physical drive nmuber to identify the drive */
)
{/* USER CODE BEGIN INIT */Stat = STA_NOINIT;return Stat;/* USER CODE END INIT */
}/*** @brief  Gets Disk Status* @param  pdrv: Physical drive number (0..)* @retval DSTATUS: Operation status*/
//DSTATUS USER_status (
//	BYTE pdrv       /* Physical drive number to identify the drive */
//)
//{
//  /* USER CODE BEGIN STATUS */
//    Stat = STA_NOINIT;
//    return Stat;
//  /* USER CODE END STATUS */
//}
// 修改1
DSTATUS USER_status (BYTE pdrv       /* Physical drive number to identify the drive */
)
{/* USER CODE BEGIN STATUS */Stat = STA_NOINIT;Stat &= ~STA_NOINIT;return Stat;/* USER CODE END STATUS */
}
/*** @brief  Reads Sector(s)* @param  pdrv: Physical drive number (0..)* @param  *buff: Data buffer to store read data* @param  sector: Sector address (LBA)* @param  count: Number of sectors to read (1..128)* @retval DRESULT: Operation result*/
//DRESULT USER_read (
//	BYTE pdrv,      /* Physical drive nmuber to identify the drive */
//	BYTE *buff,     /* Data buffer to store read data */
//	DWORD sector,   /* Sector address in LBA */
//	UINT count      /* Number of sectors to read */
//)
//{
//  /* USER CODE BEGIN READ */
//    return RES_OK;
//  /* USER CODE END READ */
//}
//修改2
DRESULT USER_read (BYTE pdrv,      /* Physical drive nmuber to identify the drive */BYTE *buff,     /* Data buffer to store read data */DWORD sector,   /* Sector address in LBA */UINT count      /* Number of sectors to read */
)
{/* USER CODE BEGIN READ */uint8_t *s = (uint8_t *)(FLASH_START_ADDR);  s+=(sector*FMC_SECTOR_SIZE);for(int i=0; i<count*FMC_SECTOR_SIZE ;i++){*(buff++) = *(s++ );}return RES_OK;/* USER CODE END READ */
}
/*** @brief  Writes Sector(s)* @param  pdrv: Physical drive number (0..)* @param  *buff: Data to be written* @param  sector: Sector address (LBA)* @param  count: Number of sectors to write (1..128)* @retval DRESULT: Operation result*/
#if _USE_WRITE == 1
//DRESULT USER_write (
//	BYTE pdrv,          /* Physical drive nmuber to identify the drive */
//	const BYTE *buff,   /* Data to be written */
//	DWORD sector,       /* Sector address in LBA */
//	UINT count          /* Number of sectors to write */
//)
//{
//  /* USER CODE BEGIN WRITE */
//  /* USER CODE HERE */
//    return RES_OK;
//  /* USER CODE END WRITE */
//}
//修改3
DRESULT USER_write (BYTE pdrv,          /* Physical drive nmuber to identify the drive */const BYTE *buff,   /* Data to be written */DWORD sector,       /* Sector address in LBA */UINT count          /* Number of sectors to write */
)
{/* USER CODE BEGIN WRITE *//* USER CODE HERE */uint16_t i;	HAL_FLASH_Unlock();FLASH_EraseInitTypeDef f;f.TypeErase = FLASH_TYPEERASE_PAGES;f.PageAddress = FLASH_START_ADDR + sector*FLASH_PAGE_SIZE ;f.NbPages = count;uint32_t PageError = 0;HAL_FLASHEx_Erase(&f, &PageError);for(i=0;i<count*FLASH_PAGE_SIZE;i+=4)HAL_FLASH_Program(FLASH_TYPEPROGRAM_WORD,FLASH_START_ADDR + sector*FLASH_PAGE_SIZE + i , *(uint32_t *)(&buff[i]));HAL_FLASH_Lock();return RES_OK;/* USER CODE END WRITE */
}
#endif /* _USE_WRITE == 1 *//*** @brief  I/O control operation* @param  pdrv: Physical drive number (0..)* @param  cmd: Control code* @param  *buff: Buffer to send/receive control data* @retval DRESULT: Operation result*/
#if _USE_IOCTL == 1
//DRESULT USER_ioctl (
//	BYTE pdrv,      /* Physical drive nmuber (0..) */
//	BYTE cmd,       /* Control code */
//	void *buff      /* Buffer to send/receive control data */
//)
//{
//  /* USER CODE BEGIN IOCTL */
//    DRESULT res = RES_ERROR;
//    return res;
//  /* USER CODE END IOCTL */
//}
//修改4
DRESULT USER_ioctl (BYTE pdrv,      /* Physical drive nmuber (0..) */BYTE cmd,       /* Control code */void *buff      /* Buffer to send/receive control data */
)
{/* USER CODE BEGIN IOCTL */DRESULT res = RES_ERROR;switch(cmd){case CTRL_SYNC :res = RES_OK;break;	case CTRL_TRIM:res = RES_OK;break;case GET_BLOCK_SIZE:*(DWORD*)buff = 1; break;case GET_SECTOR_SIZE:*(DWORD*)buff = FMC_SECTOR_SIZE;break;case GET_SECTOR_COUNT:*(DWORD*)buff =  FLASH_PAGE_NBR;break;default:res = RES_PARERR;break;}return res;/* USER CODE END IOCTL */
}
#endif /* _USE_IOCTL == 1 */

main函数初始化

int main(void)
{/* USER CODE BEGIN 1 */char path[4]= {"0:"};FRESULT FATFS_Status;	/* USER CODE END 1 *//* MCU Configuration--------------------------------------------------------*//* Reset of all peripherals, Initializes the Flash interface and the Systick. */HAL_Init();/* USER CODE BEGIN Init *//* USER CODE END Init *//* Configure the system clock */SystemClock_Config();/* USER CODE BEGIN SysInit *//* USER CODE END SysInit *//* Initialize all configured peripherals */MX_GPIO_Init();MX_FATFS_Init();MX_USB_DEVICE_Init();/* USER CODE BEGIN 2 */FATFS_Status = f_mount(&USERFatFS, path, 1);f_mkdir("0:/FW");/* USER CODE END 2 *//* Infinite loop *//* USER CODE BEGIN WHILE */while (1){/* USER CODE END WHILE *//* USER CODE BEGIN 3 */}/* USER CODE END 3 */
}

插上USB实验效果

新建一个TXT文档：

《SPI_SD卡》——U盘