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SD Card 的代码
sd.h
/*
* sd.h Copyright (C) 1992 Drew Eckhardt
* SCSI disk driver header file by
* Drew Eckhardt
*
*
*
* Modified by Eric Youngdale eric@tantalus.nrl.navy.mil to
sd 注释.txt
#ifndef __SD_Card_H__
#define __SD_Card_H__
//-------------------------------------------------------------------------
// SD Card Set I/O Direction
#define SD_CMD_IN IOWR(SD_CMD_BASE, 1, 0
sd.lst
C51 COMPILER V7.50 SD 07/13/2005 10:21:50 PAGE 1
C51 COMPILER V7.50, COMPILATION OF MODULE SD
OBJECT MODULE PLACED IN sd.O
sd.c
//#define __SD
#include "sd.h"
//#undef __SD
unsigned char SDCommand( unsigned char c1,
unsigned char c2,
unsigned char c3,
sd.h
#ifdef __SD
#define EXTERN
#else
#define EXTERN extern
#endif
#include "c8051F120.h"
#define SD_NOT_SELECTED 1
#define SD_SELECTED 0
#define SPI_RESULT_BYTE SPI0DAT
#
sd.opt
### uVision2 Project, (C) Keil Software
### Do not modify !
cExt (*.c)
aExt (*.s*; *.src; *.a*)
oExt (*.obj)
lExt (*.lib)
tExt (*.txt; *.h; *.inc)
pExt (*.plm)
CppX (*.cpp)
DaveTm {
sd.plg
礦ision3 Build Log
Project:
C:\Documents and Settings\hq\桌面\SD\sd.uv2
Project File Date: 04/04/2006
Output:
sd.lis
.module sd.c
.area text(rom, con, rel)
0000 .dbfile F:\mine\mp3\MP3\sd.c
0000 .dbfunc e sd_wait_nobusy _sd_wait
sd.o
XL
H 2 areas 18 global symbols
M sd.c
S push_gset1 Ref0000
S push_gset2 Ref0000
S push_gset3 Ref0000
S push_gset4 Ref0000
S push_gset5 Ref0000
S _write_single Ref0000
S _delay Ref0000
S push
sd.c
#include
#include
#include
#define SD_INIT_TRY 50
#define SD_IDLE_WAIT_MAX 100 //等待进入IDLE次数
#define SD_CMD_TIMEOUT 100 //读CMD次数
#define TIMEOUT_WRITE 10000 // 8M