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..) *///ÎïÀíÇý¶¯ºÅ
- )
- {
- return RES_OK;
- }
- /*-----------------------------------------------------------------------*/
- /* Read Sector(s) */
- /*-----------------------------------------------------------------------*/
- DRESULT disk_read (
- BYTE pdrv, /* Physical drive nmuber (0..) *///ÎïÀíÇý¶¯ºÅ
- BYTE *buff, /* Data buffer to store read data *///½«Òª¶ÁÈ¡µÄÊý¾ÝµÄ»º³åÇø
- DWORD sector, /* Sector address (LBA) *///ÉÈÇøµØÖ·
- UINT count /* Number of sectors to read (1..128) *///½«Òª¶ÁÈ¡µÄÉÈÇøÊý
- )
- {
- 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(); //Ñ»·²éѯdma´«ÊäÊÇ·ñ½áÊø
-
- /* 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(); //Ñ»·²éѯdma´«ÊäÊÇ·ñ½áÊø
-
- /* 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..) *///ÎïÀíÇý¶¯ºÅ
- const BYTE *buff, /* Data to be written *///ҪдÈëµÄÊý¾ÝµÄÖ¸Õë
- DWORD sector, /* Sector address (LBA) *///ҪдÈëµÄÉÈÇøµØÖ·
- 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(); //µÈ´ýdma´«Êä½áÊø
- while(SD_GetStatus() != SD_TRANSFER_OK); //µÈ´ýsdioµ½sd¿¨´«Êä½áÊø
- }
- else
- {
- SD_WriteBlock((uint8_t *)buff,sector*BLOCK_SIZE, BLOCK_SIZE);
-
- /* Check if the Transfer is finished */
- SD_WaitWriteOperation(); //µÈ´ýdma´«Êä½áÊø
- while(SD_GetStatus() != SD_TRANSFER_OK); //µÈ´ýsdioµ½sd¿¨´«Êä½áÊø
- }
- return RES_OK;
-
- }
- return RES_PARERR;
- }
- #endif
- /*-----------------------------------------------------------------------*/
- /* Miscellaneous Functions */
- /*-----------------------------------------------------------------------*/
- #if _USE_IOCTL
- DRESULT disk_ioctl (
- BYTE pdrv, /* Physical drive nmuber (0..) *///ÎïÀíÇý¶¯ºÅ
- 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 /* 0:Disable or 1-2:Enable */
- /* To enable string functions, set _USE_STRFUNC to 1 or 2. */
- #define _USE_MKFS 1 /* 0:Disable or 1:Enable */
- /* To enable f_mkfs() function, set _USE_MKFS to 1 and set _FS_READONLY to 0 */
- #define _USE_FASTSEEK 1 /* 0:Disable or 1:Enable */
- /* To enable fast seek feature, set _USE_FASTSEEK to 1. */
- #define _USE_LABEL 1 /* 0:Disable or 1:Enable */
- /* To enable volume label functions, set _USE_LAVEL to 1 */
- #define _USE_FORWARD 0 /* 0:Disable 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/* 0:Disable 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 /* 0:Disable 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 /* 0:Disable 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("
¹ÒÔØÎļþϵͳʧ°Ü,´íÎó´úÂë: %u",res);
- return 0;
- }
-
- ///////¸ñʽ»¯spi_flash////////////
- printf("
ÕýÔÚ¸ñʽ»¯´ÅÅÌ,ÇëÉÔºò...");
- res=f_mkfs("0:",1,0);
- if (res == FR_OK)
- {
- printf("
¸ñʽ»¯³É¹¦...");
- }
- else
- {
- printf("
¸ñʽ»¯Ê§°Ü...");
- printf("
´íÎó´úÂë: %u
",res);
- return 0;
- }
- //////////////////////////////////////////
-
- res = f_getfree("0:", &fre_clust, &fs);
- if (res) printf("»ñÈ¡´ÅÅÌ¿Õ¼äʧ°Ü£¬Ê§°Ü´úÂë:%u
",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.
%10lu KiB available.
",
- tot_sect*4, fre_sect*4);
-
- //////////´ò¿ªºÍ´´½¨Îļþ
- res = f_open (&fsrc, "1:1.mp3", FA_OPEN_EXISTING | FA_READ );
- if (res == FR_OK)
- {
- printf("
³É¹¦´ò¿ªÎļþ1.mp3");
- }
- else
- {
- printf("
´ò¿ªÎļþʧ°Ü...");
- printf("
´íÎó´úÂë: %u
",res);
- return 0;
- }
-
- res = f_open (&fdst, "0:1.mp3", FA_CREATE_ALWAYS | FA_WRITE );
- if (res == FR_OK)
- {
- printf("
³É¹¦´´½¨Îļþ1.mp3");
- }
- else
- {
- printf("
´´½¨Îļþʧ°Ü...");
- printf("
´íÎó´úÂë: %u
",res);
- return 0;
- }
- ///////////////////////////////////
-
-
-
- /////////////////////////////////¸´ÖÆÎļþ
- printf("
ÕýÔÚ¸´ÖÆÎļþ...");
- 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("
Îļþ¸´ÖƳɹ¦...");
- ///////////////////////////////////////
- res = f_close(&fsrc);
- res = f_close(&fdst);
-
- res = f_getfree("0:", &fre_clust, &fs);
- if (res) printf("»ñÈ¡´ÅÅÌ¿Õ¼äʧ°Ü£¬Ê§°Ü´úÂë:%u
",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.
%10lu KiB available.
",
- 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[i], "/%s", fn);
- res = scan_files(path);
- if (res != FR_OK) break;
- path[i] = 0;
- } else { /* It is a file. */
- printf("%s/%s
", path, fn);
- }
- }
- f_closedir(&dir);
- }
- return res;
- }
复制代码
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