11. 在文件系统接口函数user_diskio.c中，修改为如下内容，我直接贴文件全部内容，以防因未粘贴部分设置问题导致的无法使用：
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
*
* <h2><center>© Copyright (c) 2021 STMicroelectronics.
* All rights reserved.</center></h2>
*
* 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 */
#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"
#include "spi.h"
#include "SPIFLASH.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Disk status */
static volatile DSTATUS Stat = STA_NOINIT;
#define PAGE_SIZE 256
#define SECTOR_SIZE 4096
#define SECTOR_COUNT 200
#define BLOCK_SIZE 65536
#define FLASH_PAGES_PER_SECTOR SECTOR_SIZE/PAGE_SIZE
FATFS fs;
FIL file; /* 文件对象 */
FRESULT f_res; /* 文件操作结果 */
UINT fnum; /* 文件成功读写数量 */
BYTE ReadBuffer[1024]={0}; /* 读缓冲区 */
BYTE WriteBuffer[]= "WWB is the high hand\n";
BYTE work[4096];
char USER_Path[4];
void mount_disk(void)
{
f_res = f_mount(&fs, USER_Path, 0);
return;
}
void format_disk(void)
{
uint8_t res = 0;
//这里根据版本不同函数输入参数不一样
f_res = f_mkfs(USER_Path, 1, 4096, work, sizeof(work));
}
UINT bw;
void create_file(void)
{
FIL file;
FIL *pf = &file;
uint8_t res;
f_res = f_open(pf, "0:/test.txt", FA_OPEN_ALWAYS | FA_WRITE);
f_res = f_write(&file, WriteBuffer, sizeof(WriteBuffer), &bw);
f_res = f_close(pf);
}
void read_file(void)
{
FIL file;
FRESULT res;
uint8_t rbuf[100] = {0};
f_res = f_open(&file, "0:/test.txt", FA_READ);
f_res = f_read(&file, ReadBuffer, sizeof(WriteBuffer), &bw);
f_res = f_close(&file);
}
void FileTest(void)
{
mount_disk(); //文件系统注册
format_disk(); //格式化文件系统
create_file(); //建立文件并写入"WWB is the high hand\n"
read_file(); //读取文件放到ReadBuffer中
}
/* 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 == 1
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;
if(sFLASH_ReadID() != 0)
{
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 */
}
/**
* @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 */
DRESULT res = RES_ERROR;
UINT i;
for(i = 0;i < count;i++)
{
sFLASH_ReadBuffer(buff + i * 4096,sector * 4096 + i * 4096,4096 );
}
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 */
DRESULT res = RES_ERROR;
UINT i;
for(i = 0;i < count;i++)
{
sFLASH_WriteBuffer((void *)(buff + i * 4096),sector * 4096 + i * 4096,4096 );
}
res = RES_OK;
/* USER CODE HERE */
return res;
/* 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_OK;
switch(cmd)
{
case CTRL_SYNC :
break;
case CTRL_TRIM:
break;
case GET_BLOCK_SIZE:
*(DWORD*)buff = BLOCK_SIZE;
break;
case GET_SECTOR_SIZE:
*(DWORD*)buff = SECTOR_SIZE;
break;
case GET_SECTOR_COUNT:
*(DWORD*)buff = SECTOR_COUNT;
break;
default:
res = RES_PARERR;
break;
}
return res;
/* USER CODE END IOCTL */
}
#endif /* _USE_IOCTL == 1 */
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