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标题: stm32上移植fatfs文件系统同时管理spi_falsh和sd卡，已经实现... [打印本页]

作者: 曾经最美 时间: 2016-4-15 19:30
标题: stm32上移植fatfs文件系统同时管理spi_falsh和sd卡，已经实现...
stm32上移植fatfs文件系统同时管理spi_falsh和sd卡，已经实现...
最近项目需要在spi_falsh里放一mp3文件和字库，但是往flash里面放这些文件比较麻烦，所以就想用sd卡把这些文件自动下载到falsh里面，我这里使用的flash型号是w25q128，16Mb空间。sd卡接口采用sdio来驱动。文件系统使用的是最新的fatfs 0.10版本。spi_falsh驱动使用的是野火的代码，自己又改良和添加了部分函数，以适合移植fatfs。注意：本工程硬件平台是野火的stm32开发板。完成了从sd卡复制文件到spi_flash.

下面贴上代码。
diskio.c

#include "diskio.h" /* FatFs lower layer API */
//#include "usbdisk.h" /* Example: USB drive control */
//#include "atadrive.h" /* Example: ATA drive control */
//#include "sdcard.h" /* Example: MMC/SDC contorl */
#include "spi_flash.h"
#include "sdio_sdcard.h"
/* Definitions of physical drive number for each media */
#define NORFLASH 0
#define MMC 1
#define USB 2
#define BLOCK_SIZE 512 /* Block Size in Bytes */
/*-----------------------------------------------------------------------*/
/* Inidialize a Drive */
/*-----------------------------------------------------------------------*/
DSTATUS disk_initialize (
BYTE pdrv /* Physical drive nmuber (0..) */
)
{
DSTATUS res;
SD_Error Stat;
switch (pdrv)
{
case NORFLASH :
SPI_FLASH_Init();
res=RES_OK;
break;
case MMC:
Stat = SD_Init();
if (Stat!=SD_OK )
{
res=STA_NOINIT;
}
else
{
res = RES_OK;
}
// break;
}
return res;
}
/*-----------------------------------------------------------------------*/
/* Get Disk Status */
/*-----------------------------------------------------------------------*/
DSTATUS disk_status (
BYTE pdrv /* Physical drive nmuber (0..) *///???í??????
)
{
return RES_OK;
}
/*-----------------------------------------------------------------------*/
/* Read Sector(s) */
/*-----------------------------------------------------------------------*/
DRESULT disk_read (
BYTE pdrv, /* Physical drive nmuber (0..) *///???í??????
BYTE *buff, /* Data buffer to store read data *///??????????????????????
DWORD sector, /* Sector address (LBA) *///???????·
UINT count /* Number of sectors to read (1..128) *///????????????????
)
{
switch (pdrv)
{
case NORFLASH :
// translate the arguments here
SPI_FLASH_SectorRead(buff, sector, count);
// translate the reslut code here
return RES_OK;
case MMC:
if (count > 1)
{
SD_ReadMultiBlocks(buff, sector*BLOCK_SIZE, BLOCK_SIZE, count);
/* Check if the Transfer is finished */
SD_WaitReadOperation(); //???·?é??dma??????·??á??
/* Wait until end of DMA transfer */
while(SD_GetStatus() != SD_TRANSFER_OK);
}
else
{
SD_ReadBlock(buff, sector*BLOCK_SIZE, BLOCK_SIZE);
/* Check if the Transfer is finished */
SD_WaitReadOperation(); //???·?é??dma??????·??á??
/* Wait until end of DMA transfer */
while(SD_GetStatus() != SD_TRANSFER_OK);
}
return RES_OK;
}
return RES_PARERR;
}
/*-----------------------------------------------------------------------*/
/* Write Sector(s) */
/*-----------------------------------------------------------------------*/
#if _USE_WRITE
DRESULT disk_write (
BYTE pdrv, /* Physical drive nmuber (0..) *///???í??????
const BYTE *buff, /* Data to be written *///??????????????????
DWORD sector, /* Sector address (LBA) *///???????????????·
UINT count /* Number of sectors to write (1..128) */
)
{
switch (pdrv)
{
case NORFLASH:
SPI_FLASH_SectorWrite(buff, sector, count);
return RES_OK;
case MMC:
if (count > 1)
{
SD_WriteMultiBlocks((uint8_t *)buff, sector*BLOCK_SIZE, BLOCK_SIZE, count);
/* Check if the Transfer is finished */
SD_WaitWriteOperation(); //????dma?????á??
while(SD_GetStatus() != SD_TRANSFER_OK); //????sdio??sd?¨?????á??
}
else
{
SD_WriteBlock((uint8_t *)buff,sector*BLOCK_SIZE, BLOCK_SIZE);
/* Check if the Transfer is finished */
SD_WaitWriteOperation(); //????dma?????á??
while(SD_GetStatus() != SD_TRANSFER_OK); //????sdio??sd?¨?????á??
}
return RES_OK;
}
return RES_PARERR;
}
#endif
/*-----------------------------------------------------------------------*/
/* Miscellaneous Functions */
/*-----------------------------------------------------------------------*/
#if _USE_IOCTL
DRESULT disk_ioctl (
BYTE pdrv, /* Physical drive nmuber (0..) *///???í??????
BYTE cmd, /* Control code */
void *buff /* Buffer to send/receive control data */
)
{
DRESULT sta=RES_ERROR;
DWORD nFrom,nTo;
int i;
switch (pdrv)
{
case NORFLASH :
switch(cmd)
{
case CTRL_SYNC:
sta=RES_OK;
break;
case GET_SECTOR_COUNT:
*(DWORD*)buff = 4096;
sta=RES_OK;
break;
case GET_SECTOR_SIZE:
*(WORD*)buff = 4096;
sta=RES_OK;
break;
case GET_BLOCK_SIZE:
*(DWORD*)buff = 65536;
sta=RES_OK;
break;
case CTRL_ERASE_SECTOR:
nFrom = *((DWORD*)buff);
nTo = *(((DWORD*)buff)+1);
for(i = nFrom;i <= nTo;i ++)
SPI_FLASH_SectorErase(i);
sta=RES_OK;
break;
}
case MMC:
switch(cmd)
{
case CTRL_SYNC:
sta=RES_OK;
break;
case GET_SECTOR_COUNT:
// *(DWORD*)buff = 4096;
sta=RES_OK;
break;
case GET_SECTOR_SIZE:
*(WORD*)buff = 512;
sta=RES_OK;
break;
case GET_BLOCK_SIZE:
sta=RES_OK;
break;
case CTRL_ERASE_SECTOR:
sta=RES_OK;
break;
}
}return sta;
}
#endif
DWORD get_fattime(void)
{
return 0;
}

复制代码
文件系统配置ffconf.h

/*---------------------------------------------------------------------------/
/ FatFs - FAT file system module configuration file R0.10a (C)ChaN, 2014
/---------------------------------------------------------------------------*/
#ifndef _FFCONF
#define _FFCONF 29000 /* Revision ID */
/*---------------------------------------------------------------------------/
/ Functions and Buffer Configurations
/---------------------------------------------------------------------------*/
#define _FS_TINY 0 /* 0:Normal or 1:Tiny */
/* When _FS_TINY is set to 1, it reduces memory consumption _MAX_SS bytes each
/ file object. For file data transfer, FatFs uses the common sector buffer in
/ the file system object (FATFS) instead of private sector buffer eliminated
/ from the file object (FIL). */
#define _FS_READONLY 0 /* 0:Read/Write or 1:Read only */
/* Setting _FS_READONLY to 1 defines read only configuration. This removes
/ writing functions, f_write(), f_sync(), f_unlink(), f_mkdir(), f_chmod(),
/ f_rename(), f_truncate() and useless f_getfree(). */
#define _FS_MINIMIZE 0 /* 0 to 3 */
/* The _FS_MINIMIZE option defines minimization level to remove API functions.
/
/ 0: All basic functions are enabled.
/ 1: f_stat(), f_getfree(), f_unlink(), f_mkdir(), f_chmod(), f_utime(),
/ f_truncate() and f_rename() function are removed.
/ 2: f_opendir(), f_readdir() and f_closedir() are removed in addition to 1.
/ 3: f_lseek() function is removed in addition to 2. */
#define _USE_STRFUNC 1 /* 0isable or 1-2:Enable */
/* To enable string functions, set _USE_STRFUNC to 1 or 2. */
#define _USE_MKFS 1 /* 0isable or 1:Enable */
/* To enable f_mkfs() function, set _USE_MKFS to 1 and set _FS_READONLY to 0 */
#define _USE_FASTSEEK 1 /* 0isable or 1:Enable */
/* To enable fast seek feature, set _USE_FASTSEEK to 1. */
#define _USE_LABEL 1 /* 0isable or 1:Enable */
/* To enable volume label functions, set _USE_LAVEL to 1 */
#define _USE_FORWARD 0 /* 0isable or 1:Enable */
/* To enable f_forward() function, set _USE_FORWARD to 1 and set _FS_TINY to 1. */
/*---------------------------------------------------------------------------/
/ Locale and Namespace Configurations
/---------------------------------------------------------------------------*/
#define _CODE_PAGE 936
/* The _CODE_PAGE specifies the OEM code page to be used on the target system.
/ Incorrect setting of the code page can cause a file open failure.
/
/ 932 - Japanese Shift-JIS (DBCS, OEM, Windows)
/ 936 - Simplified Chinese GBK (DBCS, OEM, Windows)
/ 949 - Korean (DBCS, OEM, Windows)
/ 950 - Traditional Chinese Big5 (DBCS, OEM, Windows)
/ 1250 - Central Europe (Windows)
/ 1251 - Cyrillic (Windows)
/ 1252 - Latin 1 (Windows)
/ 1253 - Greek (Windows)
/ 1254 - Turkish (Windows)
/ 1255 - Hebrew (Windows)
/ 1256 - Arabic (Windows)
/ 1257 - Baltic (Windows)
/ 1258 - Vietnam (OEM, Windows)
/ 437 - U.S. (OEM)
/ 720 - Arabic (OEM)
/ 737 - Greek (OEM)
/ 775 - Baltic (OEM)
/ 850 - Multilingual Latin 1 (OEM)
/ 858 - Multilingual Latin 1 + Euro (OEM)
/ 852 - Latin 2 (OEM)
/ 855 - Cyrillic (OEM)
/ 866 - Russian (OEM)
/ 857 - Turkish (OEM)
/ 862 - Hebrew (OEM)
/ 874 - Thai (OEM, Windows)
/ 1 - ASCII (Valid for only non-LFN cfg.) */
#define _USE_LFN 0 /* 0 to 3 */
#define _MAX_LFN 255 /* Maximum LFN length to handle (12 to 255) */
/* The _USE_LFN option switches the LFN feature.
/
/ 0: Disable LFN feature. _MAX_LFN and _LFN_UNICODE have no effect.
/ 1: Enable LFN with static working buffer on the BSS. Always NOT thread-safe.
/ 2: Enable LFN with dynamic working buffer on the STACK.
/ 3: Enable LFN with dynamic working buffer on the HEAP.
/
/ When enable LFN feature, Unicode handling functions ff_convert() and ff_wtoupper()
/ function must be added to the project.
/ The LFN working buffer occupies (_MAX_LFN + 1) * 2 bytes. When use stack for the
/ working buffer, take care on stack overflow. When use heap memory for the working
/ buffer, memory management functions, ff_memalloc() and ff_memfree(), must be added
/ to the project. */
#define _LFN_UNICODE 0 /* 0:ANSI/OEM or 1:Unicode */
/* To switch the character encoding on the FatFs API (TCHAR) to Unicode, enable LFN
/ feature and set _LFN_UNICODE to 1. This option affects behavior of string I/O
/ functions. */
#define _STRF_ENCODE 0 /* 0:ANSI/OEM, 1:UTF-16LE, 2:UTF-16BE, 3:UTF-8 */
/* When Unicode API is enabled by _LFN_UNICODE option, this option selects the character
/ encoding on the file to be read/written via string I/O functions, f_gets(), f_putc(),
/ f_puts and f_printf(). This option has no effect when Unicode API is not enabled. */
#define _FS_RPATH 2 /* 0 to 2 */
/* The _FS_RPATH option configures relative path feature.
/
/ 0: Disable relative path feature and remove related functions.
/ 1: Enable relative path. f_chdrive() and f_chdir() function are available.
/ 2: f_getcwd() function is available in addition to 1.
/
/ Note that output of the f_readdir() fnction is affected by this option. */
/*---------------------------------------------------------------------------/
/ Drive/Volume Configurations
/---------------------------------------------------------------------------*/
#define _VOLUMES 8
/* Number of volumes (logical drives) to be used. */
#define _STR_VOLUME_ID 0 /* 0:Use only 0-9 for drive ID, 1:Use strings for drive ID */
#define _VOLUME_STRS "RAM","NAND","CF","SD1","SD2","USB1","USB2","USB3"
/* When _STR_VOLUME_ID is set to 1, also pre-defined string can be used as drive number
/ in the path name. _VOLUME_STRS defines the drive ID strings for each logical drives.
/ Number of items must be equal to _VOLUMES. Valid characters for the drive ID strings
/ are: 0-9 and A-Z. */
#define _MULTI_PARTITION 0 /* 0:Single partition, 1:Enable multiple partition */
/* By default(0), each logical drive number is bound to the same physical drive number
/ and only a FAT volume found on the physical drive is mounted. When it is set to 1,
/ each logical drive number is bound to arbitrary drive/partition listed in VolToPart[].
*/
#define _MIN_SS 512
#define _MAX_SS 4096
/* These options configure the sector size to be supported. (512, 1024, 2048 or 4096)
/ Always set both 512 for most systems, all memory card and hard disk. But a larger
/ value may be required for on-board flash memory and some type of optical media.
/ When _MIN_SS != _MAX_SS, FatFs is configured to multiple sector size and
/ GET_SECTOR_SIZE command must be implemented to the disk_ioctl() function. */
#define _USE_ERASE 0/* 0isable or 1:Enable */
/* To enable sector erase feature, set _USE_ERASE to 1. Also CTRL_ERASE_SECTOR command
/ should be added to the disk_ioctl() function. */
#define _FS_NOFSINFO 0 /* 0 to 3 */
/* If you need to know correct free space on the FAT32 volume, set bit 0 of this
/ option and f_getfree() function at first time after volume mount will force
/ a full FAT scan. Bit 1 controls the last allocated cluster number as bit 0.
/
/ bit0=0: Use free cluster count in the FSINFO if available.
/ bit0=1: Do not trust free cluster count in the FSINFO.
/ bit1=0: Use last allocated cluster number in the FSINFO if available.
/ bit1=1: Do not trust last allocated cluster number in the FSINFO.
*/
/*---------------------------------------------------------------------------/
/ System Configurations
/---------------------------------------------------------------------------*/
#define _WORD_ACCESS 0 /* 0 or 1 */
/* The _WORD_ACCESS option is an only platform dependent option. It defines
/ which access method is used to the word data on the FAT volume.
/
/ 0: Byte-by-byte access. Always compatible with all platforms.
/ 1: Word access. Do not choose this unless under both the following conditions.
/
/ * Address misaligned memory access is always allowed for all instructions.
/ * Byte order on the memory is little-endian.
/
/ If it is the case, _WORD_ACCESS can also be set to 1 to improve performance
/ and reduce code size.
*/
#define _FS_LOCK 0 /* 0isable or >=1:Enable */
/* To enable file lock control feature, set _FS_LOCK to 1 or greater.
/ The value defines how many files/sub-directories can be opened simultaneously.
/ This feature consumes _FS_LOCK * 12 bytes of bss area. */
#define _FS_REENTRANT 0 /* 0isable or 1:Enable */
#define _FS_TIMEOUT 1000 /* Timeout period in unit of time ticks */
#define _SYNC_t HANDLE /* O/S dependent sync object type. e.g. HANDLE, OS_EVENT*, ID and etc.. */
/*#include <windows.h>*/
/* A header file that defines sync object types on the O/S, such as windows.h,
/ ucos_ii.h and semphr.h, should be included here when enable this option.
/ The _FS_REENTRANT option switches the re-entrancy (thread safe) of the FatFs module.
/
/ 0: Disable re-entrancy. _FS_TIMEOUT and _SYNC_t have no effect.
/ 1: Enable re-entrancy. Also user provided synchronization handlers,
/ ff_req_grant(), ff_rel_grant(), ff_del_syncobj() and ff_cre_syncobj()
/ function must be added to the project.
*/
#endif /* _FFCONFIG */

复制代码
主函数里面是从sd卡里面复制确定名字的文件，你可以根据自己的需求改写。main.c

#include "main.h"
FRESULT scan_files (char* path) ; /* Start node to be scanned (also used as work area) */
u8 buffer[4096]={0};
int main(void)
{
FRESULT res;
FIL fsrc,fdst;
FATFS fs_spi,fs_sd,*fs=&fs_spi;
DWORD fre_clust, fre_sect, tot_sect;
UINT br, bw; // File R/W count
// u8 buffer1[2048];
USART1_Config();
// for(a=0;a<4096;a++)
// buffer[a]='6';
// SPI_FLASH_Init();
res=f_mount(&fs_spi,"0:",0);
res=f_mount(&fs_sd,"1:",0);
if (res != FR_OK)
{
printf("\r\n?????????????§°?,?í?ó?ú??: %u",res);
return 0;
}
///////??????spi_flash////////////
printf("\r\n??????????????,?????ò...");
res=f_mkfs("0:",1,0);
if (res == FR_OK)
{
printf("\r\n??????????...");
}
else
{
printf("\r\n???????§°?...");
printf("\r\n?í?ó?ú??: %u\r\n",res);
return 0;
}
//////////////////////////////////////////
res = f_getfree("0:", &fre_clust, &fs);
if (res) printf("?????????????§°????§°??ú??:%u\r\n",res);
/* Get total sectors and free sectors */
tot_sect = (fs->n_fatent - 2) * fs->csize;
fre_sect = fre_clust * fs->csize;
/* Print the free space (assuming 512 bytes/sector) */
printf("%10lu KiB total drive space.\n%10lu KiB available.\n",
tot_sect*4, fre_sect*4);
//////////?ò???????¨????
res = f_open (&fsrc, "1:1.mp3", FA_OPEN_EXISTING | FA_READ );
if (res == FR_OK)
{
printf("\r\n?????ò??????1.mp3");
}
else
{
printf("\r\n?ò???????§°?...");
printf("\r\n?í?ó?ú??: %u\r\n",res);
return 0;
}
res = f_open (&fdst, "0:1.mp3", FA_CREATE_ALWAYS | FA_WRITE );
if (res == FR_OK)
{
printf("\r\n???????¨????1.mp3");
}
else
{
printf("\r\n???¨?????§°?...");
printf("\r\n?í?ó?ú??: %u\r\n",res);
return 0;
}
///////////////////////////////////
/////////////////////////////////????????
printf("\r\n????????????...");
for(;;)
{
res = f_read(&fsrc, buffer, 4096, &br);
if(res||br==0)break;
res = f_write(&fdst,buffer,br,&bw);
if(res||bw<br)break;
printf("*");
}
printf("\r\n????????????...");
///////////////////////////////////////
res = f_close(&fsrc);
res = f_close(&fdst);
res = f_getfree("0:", &fre_clust, &fs);
if (res) printf("?????????????§°????§°??ú??:%u\r\n",res);
/* Get total sectors and free sectors */
tot_sect = (fs->n_fatent - 2) * fs->csize;
fre_sect = fre_clust * fs->csize;
/* Print the free space (assuming 512 bytes/sector) */
printf("%10lu KiB total drive space.\n%10lu KiB available.\n",
tot_sect*4, fre_sect*4);
while(1);
}
FRESULT scan_files (
char* path /* Start node to be scanned (also used as work area) */
)
{
FRESULT res;
FILINFO fno;
DIR dir;
int i;
char *fn; /* This function is assuming non-Unicode cfg. */
#if _USE_LFN
static char lfn[_MAX_LFN + 1]; /* Buffer to store the LFN */
fno.lfname = lfn;
fno.lfsize = sizeof lfn;
#endif
res = f_opendir(&dir, path); /* Open the directory */
if (res == FR_OK) {
i = strlen(path);
for (;;) {
res = f_readdir(&dir, &fno); /* Read a directory item */
if (res != FR_OK || fno.fname[0] == 0) break; /* Break on error or end of dir */
if (fno.fname[0] == '.') continue; /* Ignore dot entry */
#if _USE_LFN
fn = *fno.lfname ? fno.lfname : fno.fname;
#else
fn = fno.fname;
#endif
if (fno.fattrib & AM_DIR) { /* It is a directory */
sprintf(&path, "/%s", fn);
res = scan_files(path);
if (res != FR_OK) break;
path = 0;
} else { /* It is a file. */
printf("%s/%s\n", path, fn);
}
}
f_closedir(&dir);
}
return res;
}

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