sd_driver.h

SD卡在SD模式下的控制程序

/*SD卡驱动程序*/
#ifndef _SD_DRIVER_H_
#define _SD_DRIVER_H_

#include "REG54.H"
#include <intrins.h>

sbit SD_CLK = P1^5;
sbit SD_CMD = P1^4;
sbit SD_DAT0= P1^0;
sbit SD_DAT1= P1^1;
sbit SD_DAT2= P1^2;
sbit SD_DAT3= P1^3;

void clock(unsigned char i);
void SdCmdWrite(unsigned char n);
unsigned char SdRespRead(void);
unsigned char SdDataRead(void);

unsigned char SdInit(void);
void SdCommand(unsigned char command, unsigned long argument);
unsigned char SdReadMultiBlock(unsigned char *Block, unsigned long address,unsigned char Len);
unsigned char SdResponse(void);
unsigned char SdReadBlock(unsigned char *Block, unsigned long address);
unsigned int LSwapINT16(unsigned short dData1,unsigned short dData2);
unsigned long LSwapINT32(unsigned char dData1,unsigned char dData2,unsigned char dData3,unsigned char dData4);
unsigned char SdReadSector(unsigned long sector,unsigned char len,unsigned char *pBuffer);
unsigned char SD_GetCmdCRC7(unsigned char cmd, unsigned long argument);
void UARTSend(unsigned char i);
void delay(unsigned int i);
#endif