DRESULT disk_write (
BYTE pdrv, /* Physical drive nmuber (0..) */
const BYTE *buff, /* Data to be written */
DWORD sector, /* Sector address (LBA) */
UINT count /* Number of sectors to write (1..128) */
)
{
u8 res;
// uint32_t result;
if (!count)return RES_PARERR;//count????0,????????
// int i;
switch (pdrv) {
case SDCARD :
res=SD_WriteDisk((u8*)buff,sector,count);
while(res)//???
{
SD_Init(); //?????SD?
ForDelay_nms(1);
res=SD_WriteDisk((u8*)buff,sector,count);
// printf("sd wr error:%d\r\n",res);
}
return RES_OK;
}
return RES_PARERR;
}
DRESULT disk_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 */
)
{
DRESULT res;
uint8_t result;
if(!count){
return RES_PARERR;
}
switch (pdrv) {
case SD_CARD:
result = SD_WriteDisk((u8*)buff,sector,count);
while(result){
SD_Init();
result = SD_WriteDisk((u8*)buff, sector, count);
}
break;
default:
result = 1;
}
if (result == 0x00){
return RES_OK;
}
else{
return RES_ERROR;
}
}
/*******************************************************************************
* Function Name : Write_Memory
* Description : Handle the Write operation to the STORAGE card.
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
int8_t STORAGE_Write (uint8_t lun,
uint8_t *buf,
uint32_t blk_addr,
uint16_t blk_len)
{
uint32_t res=0;// int i;
USB_STATUS_REG|=0X01;//标记正在写数据
res=SD_WriteDisk (buf,blk_addr,blk_len);
if(res)USB_STATUS_REG|=0X04;//SD卡写错误!
return res;
}
DRESULT disk_write (
BYTE pdrv, /* Physical drive nmuber (0..) */
const BYTE *buff, /* Data to be written */
DWORD sector, /* Sector address (LBA) */
UINT count /* Number of sectors to write (1..128) */
)
{
u8 res=0;
if (!count)return RES_PARERR;
switch(pdrv)
{
#ifdef USE_SD_CARD
case SD_CARD:
res=SD_WriteDisk((u8*)buff,sector,count);
while(res)
{
SD_Init();
res=SD_WriteDisk((u8*)buff,sector,count);
//printf("sd wr error:%d\r\n",res);
}
break;
#endif
case EX_FLASH:
for(;count>0;count--)
{
W25QXX_Write((u8*)buff,sector*FLASH_SECTOR_SIZE,FLASH_SECTOR_SIZE);
sector++;
buff+=FLASH_SECTOR_SIZE;
}
res=0;
break;
case USB_DISK:
res=USBH_UDISK_Write((u8*)buff,sector,count);
break;
default:
res=1;
}
if(res == 0x00)return RES_OK;
else return RES_ERROR;
}
DRESULT disk_write (
BYTE pdrv, /* Physical drive nmuber (0..) */
const BYTE *buff, /* Data to be written */
DWORD sector, /* Sector address (LBA) */
UINT count /* Number of sectors to write (1..128) */
)
{
u8 res=0;
if (!count)return RES_PARERR;//count不能等于0，否则返回参数错误
switch(pdrv)
{
case SD_CARD://SD卡
res=SD_WriteDisk((u8*)buff,sector,count);
while(res)//写出错
{
SD_Init(); //重新初始化SD卡
res=SD_WriteDisk((u8*)buff,sector,count);
//printf("sd wr error:%d\r\n",res);
}
break;
#if SPIFlash
case EX_FLASH://外部flash
for(;count>0;count--)
{
W25QXX_Write((u8*)buff,sector*FLASH_SECTOR_SIZE,FLASH_SECTOR_SIZE);
sector++;
buff+=FLASH_SECTOR_SIZE;
}
res=0;
break;
#endif
default:
res=1;
}
//处理返回值，将SPI_SD_driver.c的返回值转成ff.c的返回值
if(res == 0x00)return RES_OK;
else return RES_ERROR;
}
DRESULT disk_write (
BYTE pdrv, /* Physical drive nmuber (0..) */
const BYTE *buff, /* Data to be written */
DWORD sector, /* Sector address (LBA) */
BYTE count /* Number of sectors to write (1..128) */
)
{
DRESULT res;
int result;
u8 retry = 0X1F; //写入失败的时候,重试次数
if (!count)return RES_PARERR;//count不能等于0，否则返回参数错误
switch (pdrv)
{
case SD_CARD :
// translate the arguments here
while (retry--)
{
result = SD_WriteDisk((u8 *)buff, sector, count);
if (result == SD_OK)
{
res = RES_OK;
break;
}
}
// translate the reslut code here
return res;
// case MMC :
// // translate the arguments here
// result = MMC_disk_write(buff, sector, count);
// // translate the reslut code here
// return res;
// case USB :
// // translate the arguments here
// result = USB_disk_write(buff, sector, count);
// // translate the reslut code here
// return res;
}
return RES_PARERR;
}
/*******************************************************************************
* 函数名：主函数
* 功 能：
* 参 数：
* 返 回：
*******************************************************************************/
int main(void)
{
SystemInit();
Delay_init(72);
NVIC_Configuration();
USART1_Init(9600);
Delayms(5000);
while( SD_Initialize() != 0 )
{
USART1_PrintString("SD Initialize Fail \r\n");
}
USART1_PrintString("SD Initialize OK \r\n");
sector_num = SD_GetSectorNum();
USART1_PrintString("The SD sector num is: ");
USART1_PrintChar(sector_num>>24);
USART1_PrintChar(sector_num>>16);
USART1_PrintChar(sector_num>>8);
USART1_PrintChar(sector_num>>0);
USART1_PrintString("\r\n");
USART1_PrintString("The SD size is: ");
sector_num >>= 12;
USART1_PrintChar(sector_num>>24);
USART1_PrintChar(sector_num>>16);
USART1_PrintChar(sector_num>>8);
USART1_PrintChar(sector_num>>0);
if( 0 == SD_WriteDisk(buf1, 1, 1) )
{
USART1_PrintString("Write OK \r\n");
}
while(1)
{
Delayms(4000);
if(0 == SD_ReadDisk(buf,0,2))
{
for(n=0; n<1024; n++)
{
USART1_PrintChar(buf[n]);
}
}
}
}
DRESULT disk_write (
BYTE pdrv, /* Physical drive nmuber (0..) */
const BYTE *buff, /* Data to be written */
DWORD sector, /* Sector address (LBA) */
UINT count /* Number of sectors to write (1..128) */
)
{
u8 res=0;
if (!count)return RES_PARERR;//count不能等于0，否则返回参数错误
switch(pdrv)
{
case SD_CARD://SD卡
res=SD_WriteDisk((u8*)buff,sector,count);
break;
default:
res=1;
}
//处理返回值，将SPI_SD_driver.c的返回值转成ff.c的返回值
if(res == 0x00)return RES_OK;
else return RES_ERROR;
}
