t.h

单片机访问大容量存储器包括主程序头文件等

sbit P3_0 = 0xB0; 
sbit P3_1 = 0xB1; 
sbit P3_2 = 0xB2; 
sbit P3_3 = 0xB3; 
sbit P3_4 = 0xB4; 
sbit P3_5 = 0xB5; 
sbit P3_6 = 0xB6; 
sbit P3_7 = 0xB7; 
 
#define KEY1 P3_0 
#define KEY2 P3_1 
#define KEY3 P3_2 
 
#define LEDOUT P1 
#define WE P3_6 
#define OE P3_7 
#define LE P3_3