main.c

SD卡驱动

//#include "sd.h"
#include "sdhal.h"
#include "fileio.h"

void delay()
{	
	int i,j;
	for(i = 0;i <1000;i++)
	for(j = 0;j <500;j++)
	Nop();
}
int main()
{	
	const char *name = "data.txt";
	const char *bffr = "123zhouyi";
	MYFILE *myFile;
	char buffer[10],i;
		
	while(1)
	{
	  	if (FAT16Init() != 0 )
		{
			LATA = 0xC0;
			while(1);
		}
		else
		{
			myFile  = my_fopen (name, WRITE);
			if (myFile == NULL )
			{
				// Code was unsuccessful- infinate loop
				LATA = 0xE0;
				while(1);
			}
			else
			{
				if (my_fwrite ((void *)bffr 	,1	,10	,myFile	) != 10)
				{
					// Code was unsuccessful- infinate loop
					LATA = 0xF0;
					while (1);
				}
			}
			my_fclose(myFile);
			myFile  = my_fopen (name, READ);
			i = my_fread((void *)buffer,1,10,myFile);
			my_fclose(myFile);
		}
	}
	
		return 1;
}