board.h

AVR系列单片机与PS2口通讯子程序

#define uint unsigned int
#define uchar unsigned char
#define ulong unsigned int long
#define WDR() 	asm("wdr")
#define SEI()	asm("sei")
#define CLI()	asm("cli")
#define NOP()	asm("nop")
#define _WDR() 	asm("wdr")
#define _SEI()	asm("sei")
#define _CLI()	asm("cli")
#define _NOP()	asm("nop")


#define ddr_sda_0    DDRD&=~(1<<5)
#define ddr_sda_1    DDRD|=(1<<5)
#define ddr_scl_1    DDRD|=(1<<6)
#define sda_1   PORTD|=(1<<5)
#define sda_0   PORTD&=~(1<<5)
#define scl_1   PORTD|=(1<<6)
#define scl_0   PORTD&=~(1<<6)
#define sda   PIND&=(1<<5)