sd.c

SD卡上的FAT32文件系统源代码,能够在任何单片机上使用

#include <reg51.h>
#include <string.h>
#include <math.h>
#include <uart.h>
#include <sd.h>

unsigned char code set[512]=
{
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
};

unsigned char get[48];

void main()
{
 unsigned char i;
 delay(10000);
 UART_Init();
 send_s("yahoo!!!");
 P1=~MMC_Init();
 delay(10000);
 MMC_get_volume_info();
 //MMC_write_sector(1,set);
 MMC_get_data_LBA(1,48,get);
 for(i=0;i<48;i++)
 {
  P1=~get[i];
  delay(50000);
 }
 while(1);
}