基于51单片机简易电子时钟

/******************************************************************************* * * 普中科技 -------------------------------------------------------------------------------- * 实 验 名 : 矩阵键盘控制密码锁试验 * 连接方式 : 见连接图 * 注 意 : *******************************************************************************/ #include<reg51.h> #include"lcd.h" //--定义使用的IO口--// #define GPIO_KEY P1 sbit laba=P3^0; //--定义全局变量--// unsigned char a1,a2,a3,a4,a5,a6,a7,a8;//存放显示的日期 unsigned char b1,b2,b3,b4,b5,b6;//存放显示的时间 unsigned char c1,c2,c3,c4,c5,c6,c7,c8;//存放闹钟的日期 unsigned char d1,d2,d3,d4,d5,d6;//存放闹钟的时间 unsigned char KeyValue; unsigned char biaozhi; //用来存放读取到的键值 //--声明全局函数--// void KeyScan(void); void Delay10ms(unsigned int c); //误差 0us /******************************************************************************* * 函 数 名 : main * 函数功能 : 主函数 * 输 入 : 无 * 输 出 : 无 *******************************************************************************/ void main(void) { unsigned char i; //循环计数位 unsigned char t1;//在判断闹钟时间是否到时，作为此刻时间标志位 unsigned char t2;//在判断闹钟时间是否到时，作为闹钟时间标志位 unsigned char H; //时计算位 unsigned char Y;//年计算位 unsigned char M;//月计算位 unsigned char D;//日计算位 LcdInit(); a1=2;a2=0;a3=1;a4=8;a5=0;a6=1;a7=1;a8=0; b1=0;b2=8;b3=0;b4=0;b5=0;b6=0; c1=2;c2=0;c3=1;c4=8;c5=0;c6=1;c7=1;c8=0; d1=1;d2=0;d3=0;d4=0;d5=0;d6=0; while(1) { KeyScan(); if(KeyValue==10) //显示预设的日期和时间 { LcdWriteCom(0x80);LcdWriteData('0'+a1); LcdWriteCom(0x80+0x01);LcdWriteData('0'+a2); LcdWriteCom(0x80+0x02);LcdWriteData('0'+a3); LcdWriteCom(0x80+0x03);LcdWriteData('0'+a4); LcdWriteCom(0x80+0x04);LcdWriteData(0x2f); LcdWriteCom(0x80+0x05);LcdWriteData('0'+a5); LcdWriteCom(0x80+0x06);LcdWriteData('0'+a6); LcdWriteCom(0x80+0x07);LcdWriteData(0x2f); LcdWriteCom(0x80+0x08);LcdWriteData('0'+a7); LcdWriteCom(0x80+0x09);LcdWriteData('0'+a8); LcdWriteCom(0x80+0x40);LcdWriteData('0'+b1); LcdWriteCom(0x80+0x41);LcdWriteData('0'+b2); LcdWriteCom(0x80+0x42);LcdWriteData(0x3a); LcdWriteCom(0x80+0x43);LcdWriteData('0'+b3); LcdWriteCom(0x80+0x44);LcdWriteData('0'+b4); LcdWriteCom(0x80+0x45);LcdWriteData(0x3a); LcdWriteCom(0x80+0x46);LcdWriteData('0'+b5); LcdWriteCom(0x80+0x47);LcdWriteData('0'+b6); } if(KeyValue==12) //显示预设闹钟的日期和时间 { LcdWriteCom(0x80);LcdWriteData('0'+c1); LcdWriteCom(0x80+0x01);LcdWriteData('0'+c2); LcdWriteCom(0x80+0x02);LcdWriteData('0'+c3); LcdWriteCom(0x80+0x03);LcdWriteData('0'+c4); LcdWriteCom(0x80+0x04);LcdWriteData(0x2f); LcdWriteCom(0x80+0x05);LcdWriteData('0'+c5); LcdWriteCom(0x80+0x06);LcdWriteData('0'+c6); LcdWriteCom(0x80+0x07);LcdWriteData(0x2f); LcdWriteCom(0x80+0x08);LcdWriteData('0'+c7); LcdWriteCom(0x80+0x09);LcdWriteData('0'+c8); LcdWriteCom(0x80+0x40);LcdWriteData('0'+d1); LcdWriteCom(0x80+0x41);LcdWriteData('0'+d2); LcdWriteCom(0x80+0x42);LcdWriteData(0x3a); LcdWriteCom(0x80+0x43);LcdWriteData('0'+d3); LcdWriteCom(0x80+0x44);LcdWriteData('0'+d4); LcdWriteCom(0x80+0x45);LcdWriteData(0x3a); LcdWriteCom(0x80+0x46);LcdWriteData('0'+d5); LcdWriteCom(0x80+0x47);LcdWriteData('0'+d6); } if(KeyValue==14) //修改显示时间 { LcdWriteCom(0x80);LcdWriteData(0x01); LcdWriteCom(0x80+0x01);LcdWriteData(0x01); LcdWriteCom(0x80+0x02);LcdWriteData(0x01); LcdWriteCom(0x80+0x03);LcdWriteData(0x01); LcdWriteCom(0x80+0x04);LcdWriteData(0x2f); LcdWriteCom(0x80+0x05);LcdWriteData(0x01); LcdWriteCom(0x80+0x06);LcdWriteData(0x01); LcdWriteCom(0x80+0x07);LcdWriteData(0x2f); LcdWriteCom(0x80+0x08);LcdWriteData(0x01); LcdWriteCom(0x80+0x09);LcdWriteData(0x01); LcdWriteCom(0x80+0x40);LcdWriteData(0x01); LcdWriteCom(0x80+0x41);LcdWriteData(0x01); LcdWriteCom(0x80+0x42);LcdWriteData(0x3a); LcdWriteCom(0x80+0x43);LcdWriteData(0x01); LcdWriteCom(0x80+0x44);LcdWriteData(0x01); LcdWriteCom(0x80+0x45);LcdWriteData(0x3a); LcdWriteCom(0x80+0x46);LcdWriteData(0x01); LcdWriteCom(0x80+0x47);LcdWriteData(0x01); biaozhi=0; while(biaozhi<29) {KeyScan(); if(KeyValue==11) //判断是否为退格键，若为退格键，按照biaozhi的值退格相应的位置 {switch(biaozhi){case(3):LcdWriteCom(0x80);LcdWriteData(0x01);biaozhi=0;break; case(5):LcdWriteCom(0x80+0x01);LcdWriteData(0x01);biaozhi=2;break; case(7):LcdWriteCom(0x80+0x02);LcdWriteData(0x01);biaozhi=4;break; case(9):LcdWriteCom(0x80+0x03);LcdWriteData(0x01);biaozhi=6;break;//年 case(11):LcdWriteCom(0x80+0x05);LcdWriteData(0x01);biaozhi=8;break; case(13):LcdWriteCom(0x80+0x06);LcdWriteData(0x01);biaozhi=10;break;//月 case(15):LcdWriteCom(0x80+0x08);LcdWriteData(0x01);biaozhi=12;break; case(17):LcdWriteCom(0x80+0x09);LcdWriteData(0x01);biaozhi=14;break;//日 case(19):LcdWriteCom(0x80+0x40);LcdWriteData(0x01);biaozhi=16;break; case(21):LcdWriteCom(0x80+0x41);LcdWriteData(0x01);biaozhi=18;break;//时 case(23):LcdWriteCom(0x80+0x43);LcdWriteData(0x01);biaozhi=20;break; case(25):LcdWriteCom(0x80+0x44);LcdWriteData(0x01);biaozhi=22;break;//分 case(27):LcdWriteCom(0x80+0x46);LcdWriteData(0x01);biaozhi=24;break; case(29):LcdWriteCom(0x80+0x47);LcdWriteData(0x01);biaozhi=26;break;//秒 } } while(biaozhi==1) {a1=KeyValue;LcdWriteCom(0x80);LcdWriteData('0'+a1);biaozhi++;} while(biaozhi==3) {a2=KeyValue;LcdWriteCom(0x80+0x01);LcdWriteData('0'+a2);biaozhi++;} while(biaozhi==5) {a3=KeyValue;LcdWriteCom(0x80+0x02);LcdWriteData('0'+a3);biaozhi++;} while(biaozhi==7) {a4=KeyValue;LcdWriteCom(0x80+0x03);LcdWriteData('0'+a4);biaozhi++;} //输入年 while(biaozhi==9) {a5=KeyValue;LcdWriteCom(0x80+0x05);LcdWriteData('0'+a5);biaozhi++;} while(biaozhi==11) {a6=KeyValue;LcdWriteCom(0x80+0x06);LcdWriteData('0'+a6);biaozhi++;} //输入月 while(biaozhi==13) {a7=KeyValue;LcdWriteCom(0x80+0x08);LcdWriteData('0'+a7);biaozhi++;} while(biaozhi==15) {a8=KeyValue;LcdWriteCom(0x80+0x09);LcdWriteData('0'+a8);biaozhi++;} //输入日 while(biaozhi==17) {b1=KeyValue;LcdWriteCom(0x80+0x40);LcdWriteData('0'+b1);biaozhi++;} while(biaozhi==19) {b2=KeyValue;LcdWriteCom(0x80+0x41);LcdWriteData('0'+b2);biaozhi++;} //输入时 while(biaozhi==21) {b3=KeyValue;LcdWriteCom(0x80+0x43);LcdWriteData('0'+b3);biaozhi++;} while(biaozhi==23) {b4=KeyValue;LcdWriteCom(0x80+0x44);LcdWriteData('0'+b4);biaozhi++;} //输入分 while(biaozhi==25) {b5=KeyValue;LcdWriteCom(0x80+0x46);LcdWriteData('0'+b5);biaozhi++;} while(biaozhi==27) {b6=KeyValue;LcdWriteCom(0x80+0x47);LcdWriteData('0'+b6);biaozhi++;} //输入秒 } } if(KeyValue==13) //修改闹钟时间 { LcdWriteCom(0x80);LcdWriteData(0x01); LcdWriteCom(0x80+0x01);LcdWriteData(0x01); LcdWriteCom(0x80+0x02);LcdWriteData(0x01); LcdWriteCom(0x80+0x03);LcdWriteData(0x01); LcdWriteCom(0x80+0x04);LcdWriteData(0x2f); LcdWriteCom(0x80+0x05);LcdWriteData(0x01); LcdWriteCom(0x80+0x06);LcdWriteData(0x01); LcdWriteCom(0x80+0x07);LcdWriteData(0x2f); LcdWriteCom(0x80+0x08);LcdWriteData(0x01); LcdWriteCom(0x80+0x09);LcdWriteData(0x01); LcdWriteCom(0x80+0x40);LcdWriteData(0x01); LcdWriteCom(0x80+0x41);LcdWriteData(0x01); LcdWriteCom(0x80+0x42);Lc