sd.h

介绍AVR单片机与SD卡及MP3芯片的通信接口代码。

/************************************************************/
/*		         HEAD FILE  for   sd					    */
/*				   By   pasyong								*/
/*				   2006-4									*/
/*				   Base ICC6.31A					        */
/************************************************************/
#define uchar unsigned char
#define uint unsigned int
void spi_init(void);
uchar SD_Write_Command(uchar cmd,unsigned long arg);
void sd_port_init(void);
uchar SD_Init(void);
uchar SD_Read_Block(unsigned long address);
void delay_nus(uint n);