#ifndef __SD_H__
#define __SD_H__ 
#include <mega16.h>
#define SD_CS PORTB.4   
void SPI_Init();
unsigned char SD_Write_Command(unsigned char *cmd);
unsigned char SD_Init(void);
unsigned char SD_Read_Block(unsigned long address,unsigned char *pbuf);
unsigned char SD_Write_Block(unsigned long address,unsigned char *pbuf);

#endif