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STM32-Player-Doc/STM32H743VI 开发版/STM32H750驱动例程(HAL库)/例30 FATFS实验/FATFS/source/diskio.c

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新增开发版例程
2021-07-28 13:15:22 +08:00
/*-----------------------------------------------------------------------*/
/* Low level disk I/O module skeleton for FatFs (C)ChaN, 2016 */
/*-----------------------------------------------------------------------*/
/* If a working storage control module is available, it should be */
/* attached to the FatFs via a glue function rather than modifying it. */
/* This is an example of glue functions to attach various exsisting */
/* storage control modules to the FatFs module with a defined API. */
/*-----------------------------------------------------------------------*/
#include "diskio.h" /* FatFs lower layer API */
#include "sdmmc_sdcard.h"
#include "w25qxx.h"
#include "malloc.h"
//////////////////////////////////////////////////////////////////////////////////
/****************************************************************/
//FATFS<46>ײ<EFBFBD>(diskio) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com
/****************************************************************/
//////////////////////////////////////////////////////////////////////////////////
#define SD_CARD 0 //SD<53><44>,<2C><><EFBFBD><EFBFBD>Ϊ0
#define EX_FLASH 1 //<2F>ⲿspi flash,<2C><><EFBFBD><EFBFBD>Ϊ1
//<2F><><EFBFBD><EFBFBD>W25Q256
//ǰ25M<35>ֽڸ<D6BD>fatfs<66><73>,25M<35>ֽں<D6BD>,<2C><><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD>ֿ<EFBFBD>,<2C>ֿ<EFBFBD>ռ<EFBFBD><D5BC>6.01M. ʣ<>ಿ<EFBFBD><E0B2BF>,<2C><><EFBFBD>ͻ<EFBFBD><CDBB>Լ<EFBFBD><D4BC><EFBFBD>
#define SPI_FLASH_SECTOR_SIZE 512
#define SPI_FLASH_SECTOR_COUNT 1024*25*2 //W25Q256,ǰ25M<35>ֽڸ<D6BD>FATFSռ<53><D5BC>
#define SPI_FLASH_BLOCK_SIZE 8 //ÿ<><C3BF>BLOCK<43><4B>8<EFBFBD><38><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//<2F><><EFBFBD>ô<EFBFBD><C3B4><EFBFBD>״̬
DSTATUS disk_status (
BYTE pdrv /* Physical drive nmuber to identify the drive */
)
{
return RES_OK;
}
//<2F><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
DSTATUS disk_initialize (
BYTE pdrv /* Physical drive nmuber to identify the drive */
)
{
u8 res=0;
switch(pdrv)
{
case SD_CARD: //SD<53><44>
res=SD_Init(); //SD<53><44><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>
break;
default:
res=1;
}
if(res)return STA_NOINIT;
else return 0; //<2F><>ʼ<EFBFBD><CABC><EFBFBD>ɹ<EFBFBD>
}
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//pdrv:<3A><><EFBFBD>̱<EFBFBD><CCB1><EFBFBD>0~9
//*buff:<3A><><EFBFBD>ݽ<EFBFBD><DDBD>ջ<EFBFBD><D5BB><EFBFBD><EFBFBD>׵<EFBFBD>ַ
//sector:<3A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ
//count:<3A><>Ҫ<EFBFBD><D2AA>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
DRESULT disk_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 */
)
{
u8 res=0;
if (!count)return RES_PARERR;//count<6E><74><EFBFBD>ܵ<EFBFBD><DCB5><EFBFBD>0<EFBFBD><30><EFBFBD><EFBFBD><EFBFBD>򷵻ز<F2B7B5BB><D8B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
switch(pdrv)
{
case SD_CARD://SD<53><44>
res=SD_ReadDisk(buff,sector,count);
while(res)//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
SD_Init(); //<2F><><EFBFBD>³<EFBFBD>ʼ<EFBFBD><CABC>SD<53><44>
res=SD_ReadDisk(buff,sector,count);
//printf("sd rd error:%d\r\n",res);
}
break;
default:
res=1;
}
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD>SPI_SD_driver.c<>ķ<EFBFBD><C4B7><EFBFBD>ֵת<D6B5><D7AA>ff.c<>ķ<EFBFBD><C4B7><EFBFBD>ֵ
if(res==0x00)return RES_OK;
else return RES_ERROR;
}
//д<><D0B4><EFBFBD><EFBFBD>
//pdrv:<3A><><EFBFBD>̱<EFBFBD><CCB1><EFBFBD>0~9
//*buff:<3A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׵<EFBFBD>ַ
//sector:<3A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ
//count:<3A><>Ҫд<D2AA><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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 */
)
{
u8 res=0;
if (!count)return RES_PARERR;//count<6E><74><EFBFBD>ܵ<EFBFBD><DCB5><EFBFBD>0<EFBFBD><30><EFBFBD><EFBFBD><EFBFBD>򷵻ز<F2B7B5BB><D8B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
switch(pdrv)
{
case SD_CARD://SD<53><44>
res=SD_WriteDisk((u8*)buff,sector,count);
while(res)//д<><D0B4><EFBFBD><EFBFBD>
{
SD_Init(); //<2F><><EFBFBD>³<EFBFBD>ʼ<EFBFBD><CABC>SD<53><44>
res=SD_WriteDisk((u8*)buff,sector,count);
//printf("sd wr error:%d\r\n",res);
}
break;
default:
res=1;
}
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD>SPI_SD_driver.c<>ķ<EFBFBD><C4B7><EFBFBD>ֵת<D6B5><D7AA>ff.c<>ķ<EFBFBD><C4B7><EFBFBD>ֵ
if(res == 0x00)return RES_OK;
else return RES_ERROR;
}
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD>
//pdrv:<3A><><EFBFBD>̱<EFBFBD><CCB1><EFBFBD>0~9
//ctrl:<3A><><EFBFBD>ƴ<EFBFBD><C6B4><EFBFBD>
//*buff:<3A><><EFBFBD><EFBFBD>/<2F><><EFBFBD>ջ<EFBFBD><D5BB><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>
DRESULT disk_ioctl (
BYTE pdrv, /* Physical drive nmuber (0..) */
BYTE cmd, /* Control code */
void *buff /* Buffer to send/receive control data */
)
{
DRESULT res;
if(pdrv==SD_CARD)//SD<53><44>
{
switch(cmd)
{
case CTRL_SYNC:
res = RES_OK;
break;
case GET_SECTOR_SIZE:
*(DWORD*)buff = 512;
res = RES_OK;
break;
case GET_BLOCK_SIZE:
*(WORD*)buff = SDCardInfo.CardBlockSize;
res = RES_OK;
break;
case GET_SECTOR_COUNT:
*(DWORD*)buff = SDCardInfo.CardCapacity/512;
res = RES_OK;
break;
default:
res = RES_PARERR;
break;
}
}
else res=RES_ERROR;//<2F><><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD>֧<EFBFBD><D6A7>
return res;
}
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