fatfs文件系统格式化代码SPI flash

safasad21

1楼-- · 2019-07-15 00:08

精彩回答 2 元偷偷看……

wanglq2011

2楼-- · 2019-07-15 03:28

只是文件页大小的问题，改下宏就好了

60user199

3楼-- · 2019-07-15 07:36

大师，我移植了FATFS到flash，发现格式化未成功（未移植操作系统时多扇区（512B）读写没问题，已经测试过），如何配置格式化函数呀：
#define _MAX_SS 512 /* 512, 1024, 2048 or 4096 */
/* Maximum sector size to be handled.
/ Always set 512 for memory card and hard disk but a larger value may be
/ required for floppy disk (512/1024) and optical disk (512/2048).
/ When _MAX_SS is larger than 512, GET_SECTOR_SIZE command must be implememted
/ to the disk_ioctl function. */

/*-----------------------------------------------------------------------*/
/* Miscellaneous Functions */

DRESULT disk_ioctl(
BYTE drv, /* Physical drive nmuber (0..) */
BYTE ctrl, /* Control code */
void *buff /* Buffer to send/receive control data */
)
{
DRESULT res = RES_OK;
//DWORD result;
if (drv)
{
return RES_ERROR;
}

switch (ctrl)
{
case CTRL_SYNC:
break;
case GET_SECTOR_COUNT:

*(DWORD*)buff = (DWORD) 4096;
break; //2M byte

case GET_SECTOR_SIZE:

//*(DWORD*)buff = (DWORD) 2048; //>512时从这里获得扇区大小
break;
//单扇区字节数
case GET_BLOCK_SIZE:

*(DWORD*)buff = (DWORD) 4096;
break; //族大小

case CTRL_POWER :
     break;
     case CTRL_LOCK :
     break;
     case CTRL_EJECT :
     break;
default:
res = RES_ERROR;
break;
}
return res;
}

int main(void)
{
UARTInit (); /* UARTInit */
PINSEL0 = PINSEL0 & (~0x0F); /* UART0,设置I/O连接到UART*/
PINSEL0 = PINSEL0 | 0x05; /* P0.0 = TXD0,P0.1 = RXD0*/

UART0SendStr("x0c");
UART0SendStr("x0c"); //超级终端清屏
UART0SendStr("33[1;40;32m"); //设置超级终端背景为黑 {MOD}，字符为绿 {MOD}
UART0SendStr(" *******************************************************************************");
UART0SendStr(" *********************** Copyright 2012-10-10, liujiehan ***********************");
UART0SendStr(" ************************** http://www.upcomputer.com **************************");
UART0SendStr(" ***************************** All Rights Reserved *****************************");
UART0SendStr(" *******************************************************************************");
UART0SendStr(" ");

/*初始化文件系统，检查芯片是否插入以及是否型号正确*/
res = disk_initialize(NORFLASH);
if(res == RES_OK)
{
     UART0SendStr("initialize filesystem successed! ");
}
else
{
     UART0SendStr("initialize filesystem failed! ");
}
/*挂载文件系统*/
res = f_mount(NORFLASH,&fs);
if(res == RES_OK)
{
     UART0SendStr("mount filesystem successed! ");
}
else
{
     UART0SendStr("mount filesystem failed! ");
}
/*格式化磁盘*/
UART0SendStr("正在格式化磁盘,请稍候... ");
//res = f_mkfs(NORFLASH,1,4096);//4096:每簇占用字节数
res = f_mkfs(NORFLASH,0,4096);//4096:每簇占用字节数
if(res == RES_OK)
{
UART0SendStr("format filesystem successed! ");

}
else
{
     UART0SendStr("format filesystem failed! ");
}
res = f_mount(NORFLASH,NULL);
/////////////////////////////////////////////////////////////////////////////////////////////////
res = f_mount(NORFLASH,&fs);

/*写文件测试*/
UART0SendStr("write file test...... ");
res = f_open(&FileObject, "test.txt", FA_CREATE_ALWAYS | FA_WRITE);
。。。
}

60user199

4楼-- · 2019-07-15 13:32

大师，我移植了FATFS到flash，发现格式化未成功（未移植操作系统时多扇区（512B）读写没问题，已经测试过），如何配置格式化函数呀：

#define _MAX_SS 512 /* 512, 1024, 2048 or 4096 */
/* Maximum sector size to be handled.
/ Always set 512 for memory card and hard disk but a larger value may be
/ required for floppy disk (512/1024) and optical disk (512/2048).
/ When _MAX_SS is larger than 512, GET_SECTOR_SIZE command must be implememted
/ to the disk_ioctl function. */

/*-----------------------------------------------------------------------*/
/* Miscellaneous Functions */

DRESULT disk_ioctl(
BYTE drv, /* Physical drive nmuber (0..) */
BYTE ctrl, /* Control code */
void *buff /* Buffer to send/receive control data */
)
{
DRESULT res = RES_OK;
//DWORD result;
if (drv)
{
return RES_ERROR;
}

switch (ctrl)
{
case CTRL_SYNC:
break;
case GET_SECTOR_COUNT:

*(DWORD*)buff = (DWORD) 4096;
break; //2M byte

case GET_SECTOR_SIZE:

//*(DWORD*)buff = (DWORD) 2048; //>512时从这里获得扇区大小
break;
//单扇区字节数
case GET_BLOCK_SIZE:

*(DWORD*)buff = (DWORD) 4096;
break; //族大小

case CTRL_POWER :
     break;
     case CTRL_LOCK :
     break;
     case CTRL_EJECT :
     break;
default:
res = RES_ERROR;
break;
}
return res;
}

int main(void)
{
UARTInit (); /* UARTInit */
PINSEL0 = PINSEL0 & (~0x0F); /* UART0,设置I/O连接到UART*/
PINSEL0 = PINSEL0 | 0x05; /* P0.0 = TXD0,P0.1 = RXD0*/

UART0SendStr("x0c");
UART0SendStr("x0c"); //超级终端清屏
UART0SendStr("33[1;40;32m"); //设置超级终端背景为黑 {MOD}，字符为绿 {MOD}
UART0SendStr(" *******************************************************************************");
UART0SendStr(" *********************** Copyright 2012-10-10, liujiehan ***********************");
UART0SendStr(" ************************** http://www.upcomputer.com **************************");
UART0SendStr(" ***************************** All Rights Reserved *****************************");
UART0SendStr(" *******************************************************************************");
UART0SendStr(" ");

/*初始化文件系统，检查芯片是否插入以及是否型号正确*/
res = disk_initialize(NORFLASH);
if(res == RES_OK)
{
     UART0SendStr("initialize filesystem successed! ");
}
else
{
     UART0SendStr("initialize filesystem failed! ");
}
/*挂载文件系统*/
res = f_mount(NORFLASH,&fs);
if(res == RES_OK)
{
     UART0SendStr("mount filesystem successed! ");
}
else
{
     UART0SendStr("mount filesystem failed! ");
}
/*格式化磁盘*/
UART0SendStr("正在格式化磁盘,请稍候... ");
//res = f_mkfs(NORFLASH,1,4096);//4096:每簇占用字节数
res = f_mkfs(NORFLASH,0,4096);//4096:每簇占用字节数
if(res == RES_OK)
{
UART0SendStr("format filesystem successed! ");

}
else
{
     UART0SendStr("format filesystem failed! ");
}
res = f_mount(NORFLASH,NULL);
/////////////////////////////////////////////////////////////////////////////////////////////////
res = f_mount(NORFLASH,&fs);

/*写文件测试*/
UART0SendStr("write file test...... ");
res = f_open(&FileObject, "test.txt", FA_CREATE_ALWAYS | FA_WRITE);
。。。
}

hfjydz2013

5楼-- · 2019-07-15 15:47

有谁知道文件名是保存在什么地方的系统上电后直接打开文件读数据失败是怎么回事

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