STM32 CubeMX
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
文章来源：https://www.toymoban.com/news/detail-719382.html
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 == 1
DRESULT USER_write (BYTE pdrv, const BYTE *buff, DWORD sector, UINT count);
#endif /* _USE_WRITE == 1 */
#if _USE_IOCTL == 1
DRESULT USER_ioctl (BYTE pdrv, BYTE cmd, void *buff);
#endif /* _USE_IOCTL == 1 */
Diskio_drvTypeDef USER_Driver =
{
USER_initialize,
USER_status,
USER_read,
#if _USE_WRITE
USER_write,
#endif /* _USE_WRITE == 1 */
#if _USE_IOCTL == 1
USER_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：
文章来源地址https://www.toymoban.com/news/detail-719382.html
《SPI_SD卡》——U盘
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