extio.h

一种51单片机嵌入式系统SMALL RTOS 51的应用

sbit	LCDLEDC =	P1^4 ;
sbit	VCON	= 	P1^5 ;
sbit	SCLK	= 	P1^6 ;
sbit 	PDEN 	= 	P1^7 ;
sbit	LCDEN	=	P2^7 ;
sbit	RW	= 	P2^6 ;
sbit	RS	= 	P2^5 ;
sbit 	IO	=	P3^0 ;
sbit	MUSIC	= 	P3^1 ;
sbit    KEY1	=	P3^2 ;
sbit    KEY2	=	P3^3 ;
sbit	DQ	=	P3^4 ;
sbit	RST	= 	P3^5 ;
sbit 	test1	= P1^0 ;