#include<reg52.h> #include<absacc.h> /*******************************************宏定义***************************************************/ #define uint unsigned int #define uchar unsigned char /*******************************************定义8155地址***********************************************/ #define COM8155 XBYTE[0X7FF8] //8155的命令口 #define PA8155 XBYTE[0X7FF9] //8155的PA #define PB8155 XBYTE[0X7FFA] //8155的PB #define PC8155 XBYTE[0X7FFB] //8155的PC #define DAC XBYTE[0XDFFF] //D/A端口地址 uchar code InitialCode[]={0xfe,0xfd,0xfb,0xf7}; sbit RS=P3^0; sbit RW=P3^1; sbit EN=P3^2; //键盘码值 /*******************************************键盘引脚定义**********************************************/ sbit key1=P1^4; //key1 sbit key2=P1^5; //key2
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