可调闹钟lcd时钟

2019-11-10 20:01:03

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#include<reg52.h> //包含头文件，一般情况不需要改动，头文件包含特殊功能寄存器的定义#include<intrins.h>#include "i2c.h"//sbit LATCH1=P2^2; //定义锁存使能端口段锁存//sbit LATCH2=P2^3; //位锁存sbit RS = P2^4; //定义端口 sbit RW = P2^5;sbit EN = P2^6;sbit SPK = P2^7;#define RS_CLR RS=0 #define RS_SET RS=1#define RW_CLR RW=0 #define RW_SET RW=1 #define EN_CLR EN=0#define EN_SET EN=1#define DataPort P0 //定义数据端口程序中遇到DataPort 则用P0 替换#define KeyPort P1bit KeyPRessFlag;//定义按键标志位unsigned char sec;unsigned char min;unsigned char hour;unsigned char second;unsigned char minute;unsigned char hours;unsigned char dat[3] = 0;/*------------------------------------------------ uS延时函数------------------------------------------------*/void DelayUs2x(unsigned char t){ while(--t);}/*------------------------------------------------ mS延时函数------------------------------------------------*/void DelayMs(unsigned char t){ while(t--) { //大致延时1mS DelayUs2x(245); DelayUs2x(245); }}/*------------------------------------------------ 外部中断0初始化------------------------------------------------*/void Init_INT0(void){ EA=1; //全局中断开 EX0=1; //外部中断0开 IT0=1; //边沿触发}/*------------------------------------------------ 外部中断0程序------------------------------------------------*/void ISR_INT0(void) interrupt 0 { KeyPressFlag=1; //表明按键有动作，可以进行按键扫描}/*------------------------------------------------ 按键扫描函数，返回扫描键值------------------------------------------------*/unsigned char KeyScan(void) //键盘扫描函数，使用行列逐级扫描法{ unsigned char Val; KeyPort=0xf0;//高四位置高，低四位拉低 if(KeyPort!=0xf0)//表示有按键按下 { DelayMs(10); //去抖 if(KeyPort!=0xf0) { //表示有按键按下 KeyPort=0xfe; //检测第一行 if(KeyPort!=0xfe) { Val=KeyPort&0xf0; Val+=0x0e; while(KeyPort!=0xfe); DelayMs(10); //去抖 while(KeyPort!=0xfe); return Val; } KeyPort=0xfd; //检测第二行 if(KeyPort!=0xfd) { Val=KeyPort&0xf0; Val+=0x0d; while(KeyPort!=0xfd); DelayMs(10); //去抖 while(KeyPort!=0xfd); return Val; } KeyPort=0xfb; //检测第三行 if(KeyPort!=0xfb) { Val=KeyPort&0xf0; Val+=0x0b; while(KeyPort!=0xfb); DelayMs(10); //去抖 while(KeyPort!=0xfb); return Val; } KeyPort=0xf7; //检测第四行 if(KeyPort!=0xf7) { Val=KeyPort&0xf0; Val+=0x07; while(KeyPort!=0xf7); DelayMs(10); //去抖 while(KeyPort!=0xf7); return Val; } } } return 0xff;}/*------------------------------------------------ 按键值处理函数，返回扫键值------------------------------------------------*/unsigned char KeyPro(void){ switch(KeyScan()) { case 0x7e: { sec++; if(sec == 60) { sec = 0; } break; } case 0x7d: { min++; if(min == 60) { min = 0; } break; } case 0x7b: { hour++; if(hour == 24) { hour =0 ; } break; } case 0x77: { second++; if(second == 60) { second = 0; } break; } case 0xbe: { minute++; if(minute == 60) { minute = 0; } break; } case 0xbd: { hours++; if(hours == 24) { hours = 0; } break; } /* case 0xbb:;break;//6 case 0xb7:return 7;break;//7 case 0xde:return 8;break;//8 case 0xdd:return 9;break;//9 case 0xdb:return 10;break;//a case 0xd7:return 11;break;//b case 0xee:return 12;break;//c case 0xed:return 13;break;//d case 0xeb:return 14;break;//e case 0xe7:return 15;break;//f*/ default:return 0xff;break; }}/*------------------------------------------------ 判忙函数------------------------------------------------*/ bit LCD_Check_Busy(void) { DataPort= 0xFF; RS_CLR; RW_SET; EN_CLR; _nop_(); EN_SET; return (bit)(DataPort & 0x80); }/*------------------------------------------------ 写入命令函数------------------------------------------------*/ void LCD_Write_Com(unsigned char com) { // while(LCD_Check_Busy()); //忙则等待 DelayMs(5); RS_CLR; RW_CLR; EN_SET; DataPort= com; _nop_(); EN_CLR; }/*------------------------------------------------ 写入数据函数------------------------------------------------*/ void LCD_Write_Data(unsigned char Data) { //while(LCD_Check_Busy()); //忙则等待 DelayMs(5); RS_SET; RW_CLR; EN_SET; DataPort= Data; _nop_(); EN_CLR; }/*------------------------------------------------ 清屏函数------------------------------------------------*/ void LCD_Clear(void) { LCD_Write_Com(0x01); DelayMs(5); }/*------------------------------------------------ 写入字符串函数------------------------------------------------*/ void LCD_Write_String(unsigned char x,unsigned char y,unsigned char *s) { if (y == 0) { LCD_Write_Com(0x80 + x); //表示第一行 } else { LCD_Write_Com(0xC0 + x); //表示第二行 } while (*s) { LCD_Write_Data( *s); s ++; } }/*------------------------------------------------ 写入字符函数------------------------------------------------*/ void LCD_Write_Char(unsigned char x,unsigned char y,unsigned char Data) { if (y == 0) { LCD_Write_Com(0x80 + x); } else { LCD_Write_Com(0xC0 + x); } LCD_Write_Data( Data); }/*------------------------------------------------ 初始化函数------------------------------------------------*/ void LCD_Init(void) { LCD_Write_Com(0x38); /*显示模式设置*/ DelayMs(5); LCD_Write_Com(0x38); DelayMs(5); LCD_Write_Com(0x38); DelayMs(5); LCD_Write_Com(0x38); LCD_Write_Com(0x08); /*显示关闭*/ LCD_Write_Com(0x01); /*显示清屏*/ LCD_Write_Com(0x06); /*显示光标移动设置*/ DelayMs(5); LCD_Write_Com(0x0C); /*显示开及光标设置*/ }void ISR_time0() interrupt 1{ unsigned char i; EA = 0; TMOD = 0x01; TH0 = 0x3c; TL0 = 0xb0; i++; if(i == 20) { i = 0; sec++; } EA = 1; }void time_add(){ if(sec == 60) { sec = 0; min++; } if(min == 60) { min = 0; hour++; } if(hour == 24) { hour = 0; } if(sec == second && min == minute && hour == hours) { SPK = !SPK; DelayMs(5); }}/*------------------------------------------------ 主函数------------------------------------------------*/ void main(void) { IRcvStr(0xae,80,dat,16); sec = dat[0]; min = dat[1]; hour = dat[2]; TMOD = 0x01; TH0 = 0x3c; TL0 = 0xb0; TR0 = 1; EA = 1; ET0 = 1; Init_INT0(); LCD_Init(); LCD_Clear();//清屏 DelayMs(5); while (1) { time_add(); KeyPort=0xf0; // 赋值用于中断检测 if(KeyPressFlag==1) { KeyPressFlag=0; //按键标志清零，以便下次检测 KeyPro(); } LCD_Write_Char(7,0,'0' + sec%10); LCD_Write_Char(6,0,'0' + sec/10); dat[0] = sec; LCD_Write_Char(5,0,0x3a); LCD_Write_Char(4,0,'0' + min%10); LCD_Write_Char(3,0,'0' + min/10); dat[1] = min; LCD_Write_Char(2,0,0x3a); LCD_Write_Char(1,0,'0' + hour%10); LCD_Write_Char(0,0,'0' + hour/10); dat[2] = hour; LCD_Write_Char(0,1,'a'); LCD_Write_Char(1,1,'l'); LCD_Write_Char(2,1,'a'); LCD_Write_Char(3,1,'r'); LCD_Write_Char(4,1,'m'); LCD_Write_Char(5,1,0x3a); LCD_Write_Char(6,1,'0' + second%10); LCD_Write_Char(7,1,'0' + second/10); LCD_Write_Char(8,1,0x3a); LCD_Write_Char(9,1,'0' + minute%10); LCD_Write_Char(10,1,'0' + minute/10); LCD_Write_Char(11,1,0x3a); LCD_Write_Char(12,1,'0' + hours%10); LCD_Write_Char(13,1,'0' + hours/10); ISendStr(0xae,80,dat,16); }}

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