#include#define uint unsigned int #define uchar unsigned char sbit dula=P2^6;//定义锁存器锁存端sbit wela=P2^7;sbit rs=P3^5; //定义 1602 液晶 RS 端sbit lcden=P3^4; //定义 1602 液晶 LCDEN 端sbit s1=P3^0; //按键功能键sbit s2=P3^1; //增大键sbit s3=P3^2; //减小键sbit rd=P3^7;sbit beep=P2^3;sbit sda=P2^0;sbit scl=P2^1;uchar a;void delay21(){ ;; }void start() //{sda=1;delay21();scl=1;delay21();sda=0;delay21();}void stop() //{sda=0;delay21();scl=1;delay21();sda=1;delay21();}void respons() //{uchar i;scl=1;delay21();while((sda==1)&&(i<250))i++;scl=0;delay21();}void init_24c02(){sda=1;delay21();scl=1;delay21();}void write_byte(uchar date){uchar i,temp;temp=date;for(i=0;i<8;i++){temp=temp<<1;scl=0; delay21();sda=CY;delay21();scl=1;delay21();//scl=0; // delay21();}scl=0;delay21();sda=1;delay21();}uchar read_byte(){uchar i,k;scl=0;delay21();sda=1;delay21();for(i=0;i<8;i++){scl=1;delay21();k=(k<<1)|sda;scl=0;delay21();}return k;}void write_add(uchar address,uchar date){start();write_byte(0xa0);respons();write_byte(address);respons();write_byte(date);respons();stop();}uchar read_add(uchar address){uchar date;start();write_byte(0xa0);respons();write_byte(address);respons();start();write_byte(0xa1);respons();date=read_byte();stop();return date;}uchar count,s1sum;char miao,shi,fen;uchar code table[]="2025-11-10 xiao";//定义初始上电时液晶默认显示状态void delay(uint z){ uint x,y; for(x=z;x>0;x--) for(y=110;y>0;y--);}void di(){ beep=0; delay(100); beep=1;}void write_com(uchar com)//写指令{ rs=0; lcden=0; P0=com; delay(5); lcden=1; delay(5); lcden=0;}void write_date(uchar date)//写数据{ rs=1; lcden=0; P0=date; delay(5); lcden=1; delay(5); lcden=0;}void write_sfm(uchar add,uchar date){ uchar shi,ge; shi=date/10; ge=date%10; write_com(0x80+0x40+add); //设置显示位置 write_date(0x30+shi); write_date(0x30+ge);}void init()//初始化函数{ uchar num; rd=0; //软件将矩阵按键第四列...
