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代码写的不咋的  传上来供大家乐乐。140319.zip

http://elm-chan.org/fsw/ff/00index_p.html  整个传送门。嘿嘿。

#include <stc12c5a60s2.h>
#include <intrins.h>

#include "delay.h"
#include "uart.h"
#include "spi_msd.h"
#include "spi.h"

#include "pff.h" 

FATFS fatfs;   ///定义一个文件系统对象 

void main(void)
{

//	unsigned char flag = 0;
	unsigned int  read_size = 0;
	unsigned char buf[512] = {0};
	unsigned char times = 0;	

	FRESULT res;
	char s[] = "  ";
    unsigned int i;
	WORD br,rc,bw;


	P0 =0xff;
	Delay999ms();
	P0 =0xF0;
	Delay999ms();
	P0 =0xFf;	
	
	UartInit();
	SPI_LowSpeed();
	SendString("STC12C5A60S2\r\nUart Test !\r\n");
	SendString("THAT THE TRUTH YOU LEAVE !\r\n");

	 SD_Init();
 	if(SD_ReadSingleBlock(0x100,buf)== 0)
	{
		for(read_size = 1; read_size < 512 ;read_size++)
		{
			SendData(buf[read_size]);
			Delay999us();			
		}  
			//SendString(&buf);	
	}
	res = pf_mount(&fatfs);
	
    if(res == FR_OK)     
    	SendString("挂载成功!\n"); //如果返回1，则挂载失败，否则成功
	else 
		SendString("挂载失败\n");

	res = pf_open("test.txt");
		SendString("*********************\r\n");
		SendData(res + 0X30);
		SendString("\r\n*********************\r\n");
	if(res == FR_OK)              
		SendString("打开文件成功\n"); //如果返回1，则打开失败，否则成功
	else 
		SendString("打开文件失败\n");

	for (;;) //读SD卡baichi.txt里的内容
	{
		rc = pf_read(s, sizeof(s), &br);	/* Read a chunk of file */
		if (rc || !br) break;				/* Error or end of file */
		for (i = 0; i < br; i++)			/* Type the data */
		SendData(s[i]);
    }
/*
	flag = SD_Init();

	if(flag)
	{
		SendString("ERROR!\r\n"); 
	}
	else
	{
		SendString("SUCCESSFUL!\r\n");	
	}
	  */
 /*for(times = 0 ;times<200;times++)
 {
 	buf[times] = times;
 }	*/
/*	SendString("READING ......!\r\n");
	if(SD_ReadSingleBlock(0,buf)== 0)
	{
		SendString("SECTOR 0 DATA:\n");

		for(read_size = 1; read_size < 512 ;read_size++)
		{
			SendData(buf[read_size]);
			Delay999us();			
		}  
			//SendString(&buf);	
		Delay999ms();		
		SendString("\nDATA ENDED\n");
	}
	else
	{
		SendString("READING ERROR!\r\n");
	}
*/
/*	SendString("WRITING ......!\r\n");
	if(SD_WriteSingleBlock(129,buf) == 0)
	{
		for(times = 0;times<200;times++)
		{
			buf[times] = 0;
		}
		if(SD_ReadSingleBlock(129,buf)== 0)
		for(read_size = 1; read_size < 512 ;read_size++)
		{
			SendData(buf[read_size]);
			Delay999us();			
		}

	}
	else
	{
	 	SendString("WRITING ERROR!\r\n");
	}
*/
while(1)
{			
}

}