1602液晶时钟

单片机开发学习#include<reg52.h> //#include<intrins.h> #define uchar unsigned char #define uint unsigned int sbit en=P2^7; sbit rs=P2^6; sbit rw=P2^5; sbit d1=P2^3; sbit d2=P2^2; sbit d3=P2^1; sbit d4=P2^0; uchar code table1[]=" 2014-03-01 SAT"; uchar code table2[]=" 23:59:52"; uchar hou,min,sec,count,week,year,month,day,i,num; uchar k1; void write_week(); uchar month_day(); void delay(uint z) { uint x,y; for(x=z;x>0;x--) for(y=110;y>0;y--); } void write_com(uchar com) { rw=0; rs=0; P0=com; delay(5); en=1; delay(5); en=0; } void write_dat(uchar dat) { rw=0; rs=1; P0=dat; delay(5); en=1; delay(5); en=0; } void init()