数码管时钟显示C程序.doc
Arduino驱动MAX7219四位数码管显示时间
Arduino驱动MAX7219四位数码管显示时间Arduino驱动MAX7219四位数码管显示时间默认使用Pin 2为MOSI（数据发送）引脚，Pin 3为CS（片选）引脚，Pin 4为SCLK（时钟）引脚，如有需要请修改代码前三行的define。
#define MO 2#define CS 3#define CLK 4static int time_h = 21, time_m =25, time_s = 30; //此刻时间：时，分，秒int alarm_clock_h = 8, alarm_clock_m = 00; //闹钟时间unsigned long time = 0;unsigned char buffer_led[5] = { 0x00,};//缓存void SPI_init(void) //初始化SPI引脚{pinMode(CLK, OUTPUT);pinMode(MO, OUTPUT);pinMode(CS, OUTPUT);digitalWrite(CS, HIGH);digitalWrite(CLK, LOW);digitalWrite(MO, HIGH);}void SPI_send(unsigned char reg, unsigned char data) //spi 单向16位数据发送{int x;/*Serial.print("reg = ");Serial.print(reg, HEX);Serial.print(" data = ");Serial.println(data, HEX);*/digitalWrite(CS, LOW);for (x = 0; x < 8; x++){digitalWrite(MO, 0x80 & (reg << x)); //高位在前digitalWrite(CLK, HIGH);digitalWrite(CLK, LOW);}for (x = 0; x < 8; x++){digitalWrite(MO, 0x80 & (data << x)); //高位在前digitalWrite(CLK, HIGH);digitalWrite(CLK, LOW);}digitalWrite(CS, HIGH);}void lcd_init(void)//初始化Max7219配置{SPI_send(0x0b, 0x07); //scan-limitSPI_send(0x09, 0xff); //decode mode allSPI_send(0x0c, 0x01); //shutdown offSPI_send(0x0f, 0x00); //off display testSPI_send(0x0a, 0x04); //intensitydelay(100);}void clear(void)//清除显示{for (int i = 1; i <= 8; i++){SPI_send(i, 0x0F);}}void led_display(void)//显示时间{char cache = 0x00;if ((time_h / 10) == 0)buffer_led[0] = 0x00;else buffer_led[0] = time_h / 10;buffer_led[1] = time_h % 10 | 0x01;buffer_led[2] = time_m / 10;buffer_led[3] = time_m % 10;SPI_send(8, buffer_led[0]);SPI_send(7, buffer_led[1]);SPI_send(6, 0x0a);SPI_send(5, buffer_led[2]);SPI_send(4, buffer_led[3]);SPI_send(3, 0x0a);SPI_send(2, time_s / 10);SPI_send(1, time_s % 10);}void get_time()//获取时间并更新显示{static char ss = 1;static unsigned long time_cc = 0;if ((millis() - time_cc) > 1000 | millis() < 150)//秒{if (millis() <= 200) //若系统计时器溢出时时间，time_cc重计{time_cc = millis();time_s ++;delay(150);}else if (millis() > 200)//秒{time_s += (millis() - time_cc) / 1000;// time_cc = millis()-990; //时间快进time_cc = millis();buffer_led[4] = (0x01 & ss) << 5;ss = ~ss;}if (time_s > 59) //分{if (time_s - 60 > 1)//如果有延时间隔导致秒钟大于60秒，进行分钟缺失补偿 {time_m += time_s / 60;if (time_s % 60 == 0)time_m--;time_s = time_s - (time_s / 60) * 60;}else time_s = 0;time_m++;buffer_led[4] = 0x80;if (time_m > 59)//时{time_h++;time_m = (time_m - 60);buffer_led[4] = 0xf0;}if (time_h > 23){time_h = 0;time_s += 5; //时间误差补偿}}// Serial.print("millis="); // Serial.print(time_cc);// Serial.print(" time="); // Serial.print(time_h);// Serial.print(":");// Serial.print(time_m);// Serial.print(":");// Serial.println(time_s); led_display();//刷新数码管显示}}void setup(){Serial.begin(9600);SPI_init();lcd_init();clear();}void loop(){get_time();}。
8位数码管显示电子时钟c51单片机程序
8位数码管显示电子时钟c51单片机程序时间：2012-09-10 13:52:26 来源：作者：/*8位数码管显示时间格式 05—50—00 标示05点50分00秒S1 用于小时加1操作S2 用于小时减1操作S3 用于分钟加1操作S4 用于分钟减1操作*/#include<reg52.h>sbit KEY1=P3^0; //定义端口参数sbit KEY2=P3^1;sbit KEY3=P3^2;sbit KEY4=P3^3;sbit LED=P1^2; //定义指示灯参数code unsigned char tab[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f}; //共阴极数码管0—9unsigned char StrTab[8]; //定义缓冲区unsigned char minute=19,hour=23,second; //定义并初始化为 12:30:00void delay(unsigned int cnt){while(--cnt);}/******************************************************************//* 显示处理函数*//******************************************************************/void Displaypro(void){StrTab[0]=tab[hour/10]; //显示小时StrTab[1]=tab[hour%10];StrTab[2]=0x40; //显示"-"StrTab[3]=tab[minute/10]; //显示分钟StrTab[4]=tab[minute%10];StrTab[5]=0x40; //显示"-"StrTab[6]=tab[second/10]; //显示秒StrTab[7]=tab[second%10];}main(){TMOD |=0x01; //定时器0 10ms inM crystal 用于计时TH0=0xd8; //初值TL0=0xf0;ET0=1;TR0=1;TMOD |=0x10; //定时器1用于动态扫描TH1=0xF8; //初值TL1=0xf0;ET1=1;TR1=1;EA =1;Displaypro(); //调用显示处理函数while(1){if(!KEY1) //按键1去抖以及动作{delay(10000);if(!KEY1){hour++;if(hour==24)hour=0; //正常时间小时加1 Displaypro();}}if(!KEY2) //按键2去抖以及动作{delay(10000);if(!KEY2){hour--;if(hour==255)hour=23; //正常时间小时减1 Displaypro();}}if(!KEY3) //按键去抖以及动作{delay(10000);if(!KEY3){minute++;if(minute==60)minute=0; //分加1Displaypro();}}if(!KEY4) //按键去抖以及动作{delay(10000);if(!KEY4){minute--;if(minute==255)minute=59; //分减1Displaypro();}}}}/******************************************************************//* 定时器1中断 */ /******************************************************************/void time1_isr(void) interrupt 3 using 0 //定时器1用来动态扫描{static unsigned char num;TH1=0xF8; //重入初值TL1=0xf0;switch (num){case 0:P2=0;P0=StrTab[num];break; //分别调用缓冲区的值进行扫描 case 1:P2=1;P0=StrTab[num];break;case 2:P2=2;P0=StrTab[num];break;case 3:P2=3;P0=StrTab[num];break;case 4:P2=4;P0=StrTab[num];break;case 5:P2=5;P0=StrTab[num];break;case 6:P2=6;P0=StrTab[num];break;case 7:P2=7;P0=StrTab[num];break;default:break;}num++; //扫描8次，使用8个数码管if(num==8)num=0;}/******************************************************************//* 定时器0中断 */ /******************************************************************/void tim(void) interrupt 1 using 1{static unsigned char count; //定义内部局部变量TH0=0xd8; //重新赋值TL0=0xf0;count++;switch (count){case 0:case 20:case 40:case 60:case 80:Displaypro();break; //隔一定时间调用显示处理case 50:P1=~P1;break; //半秒 LED 闪烁default:break;}if (count==100){count=0;second++; //秒加1if(second==60){second=0;minute++; //分加1if(minute==60){minute=0;hour++; //时加1if(hour==24)hour=0;}}}}基于单片机的LCD1602控制总线模式时间：2012-09-10 13:50:39 来源：作者：第一行显示"Welcome";第二行显示="Happy day";若要显示其他字符，请直接往数组LCMLineOne[16]和LCMLineTwo[16]填充相应的代码。
c语言数码管显示多位数字的程序
标题：C语言实现数码管显示多位数字的程序一、引言在嵌入式系统中，数码管是一种常见的数字显示设备，常用于显示温度、湿度、时间等信息。
本文将介绍如何使用C语言编写程序，实现数码管显示多位数字的功能。
二、基本原理数码管是由许多LED灯组成的，每一个LED代表一个数字或者一个字母。
常见的数码管有共阴极数码管和共阳极数码管两种。
在本文中，我们以共阴极数码管为例进行讲解。
1. 共阴极数码管共阴极数码管的基本构造是共阴极和若干个LED管组成的显示器。
共阴极数码管的特点是：所有LED管的阴极是公用的，阳极分别接到每一位数字的引脚上。
通过控制每个数字管的阳极输入信号，可以实现控制数码管显示不同的数字和字符。
2. 显示多位数字要实现显示多位数字，首先需要确定每一个数码管的数据输入引脚，根据接线原理将对应的引脚连接到单片机的IO口。
然后通过C语言编写程序，控制每个数码管显示对应的数字。
三、C语言实现多位数字显示程序示例下面以8051单片机为例，展示一个简单的C语言程序，实现数码管显示多位数字的功能。
```c#include <reg52.h>// 定义控制数码管的引脚sbit DIG1 = P1^0;sbit DIG2 = P1^1;sbit DIG3 = P1^2;sbit DIG4 = P1^3;// 定义数码管显示的数字unsigned char code smgduan[16]={0x3f, //00x06, //10x5b, //20x4f, //30x66, //40x6d, //50x7d, //60x07, //70x7f, //80x6f, //90x77, //A0x7c, //B0x39, //C0x5e, //D0x79, //E0x71 //F};// 数码管扫描函数void display(unsigned char *dat) {DIG1 = 0;P0 = dat[0];DIG1 = 1;DIG2 = 0;P0 = dat[1];DIG2 = 1;DIG3 = 0;P0 = dat[2];DIG3 = 1;DIG4 = 0;P0 = dat[3];DIG4 = 1;}void main(){while(1){unsigned char num[4] = {0, 1, 2, 3}; // 要显示的数字数组 display(smgduan[num[3]]);delay(1);display(smgduan[num[2]]);delay(1);display(smgduan[num[1]]);delay(1);display(smgduan[num[0]]);delay(1);}}```在上述示例中，我们先定义了数码管的引脚和显示的数字所对应的编码。
51单片机+ds1302+DS18b20温度时钟(电路图+C语言程序)
时钟电路图:*■11PCB板:酱时井務ft是用诵m-pdfMerisi 口叵因Fjr 齐舱 C ：s ® 工细理沖缶皿ndm - * TfS ' 4' 包田U i > 'ir ft ZS:MZ fH钟些fl是用说町-Pdf Wirrcf闻礒雜sbit dis_ bitlsbit dis_ bit2sbit dis_ bit3sbit dis_ bit4sbit dis_ bit5sbit dis_ bit6sbit ledl _bitsbit led2 ! bit=P2A7; II定义数码管控制口=P2A6; II定义数码管控制口=卩2八4; II定义数码管控制口=卩2八3; II定义数码管控制口=P2A1; II定义数码管控制口=P2A0; II定义数码管控制口=P2A2; II定时LED勺控制口=P2A5; II定时LED勺控制口单片机程序:/*===================================================================调试要求：1. MCU:AT89S52 芯片或AT89C522. 晶振:12MHz功能：多功能时钟+温度计/#inelude <reg52. h>#inelude vintrins . h>訂开始 LJ-雲匕®务如1痒3月计ttVl. •呈T』d"吐拠席射■ w耳pg文宇■［豹…SS时軽件思冃说#define uehar #define uint unsigned char unsigned intsbit s1_bit =P1A 0; // 定义S1 控制口 sbit s2_bit =P01； // 定义 S2控制口 sbit s3_bit =P02; // 定义 S3控制口 sbit dq_ds18b20 =P3A3;// 定义控制 DS18B20 sbit speak =P3A7; //定义蜂鸣器控制口sbit clk_ds1302 =P3A6; // 定义控制 DS1302勺时钟线 sbit io_ds1302 =P3A5;//定义控制DS1302勺串行数据 sbit rest_ds1302 =P3A4;#define smg_data P0 //定义数码管数据口void delay_3us(); //3US 的延时程序 void delay_8us(ui nt t);//8US 延时基准程序void delay_50us(ui nt t); //void display1(uchar dis_data); void display2(uchar dis_data); void display3(uchar dis_data); void display4(uchar dis_data); void display5(uchar dis_data); void display6(uchar dis_data);void init_t0(); //定时器0初始化函数 void dis_led(); //LED 处理函数 void judge_s1(); //S1 按键处理函数void judge_s2(); //S2 按键处理函数 void judge_s3(); //S3 按键处理函数void dis(uchar s6,uchar s5,uchar s4,uchar s3,uchar s2,uchar s1); 示子程序 void dis_sa n( uchar s6,uchar s5,uchar s4,uchar s3,uchar s1,uchar san); 〃闪烁显示子程序 void judge_dis(); //显示处理函数 void judge_clock(); // 显示处理函数 void set_ds1302(); // 设置时间void get_ds1302();// 读取当前时间void w_1byte_ds1302(uchar t); // 向 DS130写一个字节的数据 uchar r_1byte_ds1302(); // 从DS130读一个字节的数据//DS18B20测温函数定义延时50*T 微妙函数的声明//数码管1显示子程序 //数码管2显示子程序 //数码管3显示子程序 //数码管4显示子程序 //数码管5显示子程序 //数码管6显示子程序//显 s2,ucharvoid w_1byte_ds18b20(uchar value); // 向DS18B2写一个字节ucharr_1byte_ds18b20( void ); // 从DS18B2读取一个字节的数据voidrest_ds18b20( void ); //DS18B20复位程序void readtemp_ds18b20( void ); // 读取温度void dis_temp(); //温度显示函数//共阳数码管断码表const uchar tabl1[16] ={ 0xc0,0xf9,0xa4,0xb0,0x99,0x92,// 0 1 2 3 4 50x82,0xf8,0x80,0x90,0x86,0x87,0xFF,//6 7 8 9 E T B0xc6,0xbf,0xff };// C -const uchar tabl3[] ={ 0x00,0x01,0x01,0x02,0x03,0x03,0x04,0x04,0x05,0x06,0x06,0x07,0x08,0x08,0x09,0x09 };uchar t0_crycle;uchar hour_co un t, minu te_c oun t,sec on d_co un t,msec ond_count;uchar clock_hour,clock_m inu te;uchar coun tdow n_sec ond;uchar coun tdow n_hour,co un tdow n_min ute;uchar clock_en; //闹钟关闭和开启的标志，1开启，0关闭uchar flag1,sec on d_flag,za ncun 1,za ncun 2,za ncun3;uchar zancun4 ,za ncun 5,za ncun 6,za ncun7;uchar clock_flag,co un tdow n_flag;uchar msec on d_mi nute,msec on d_sec on d,mseco nd_mseco nd,mseco nd_flag; // 秒表相关参数uint speak_c ount;uchar templ,temph,temp_flag;uchar t_b,t_s,t_g,t_x,temp_flag2; //从左到右分别存储温度百位，十位，个位，小数位uchar tab23[3]; 〃二{0x40,0x59,0x23,0x28,0x11,0x06,0x09};// 上电时默认的时间//主程序void main(){P3 =0x00;flag1 =0;zancun3 =0;msecond_minute =0; //置秒表相关参数为0msecond_second =0;msec on d_msec ond =0;speak =1;//关闭蜂鸣器speak_co unt =0;clock_hour =0;clock_m inute =0;clock_flag =0;countdown_flag =0; //倒计时标志位为0clock_en =0;//开机时默认关闭闹钟ini t_t0();TRO =1;//// set_ds1302();〃设置DS1302勺初始时间//接下来开始编写让数码管显示的程序while (1){get_ds1302();judge_dis(); // 显示处理judge_s1();judge_s2();judge_s3();judge_clock(); //闹钟处理程序} _}void timerO() interrupt 1{TH0=(65536-50000)/256;TL0=(65536 - 50000)%256; t0_crycle ++;if (t0_crycle ==2) // 0.1 秒{t0_crycle =0;msec on d_flag =1;msec ond_count ++;if (msecond_count==10)//1 秒{ _msec on d_co unt =0;sec on d_flag =1;}}}//**************************************************//显示处理函数void judge_dis(){if (flag1 ==0){if (second_flag ==1){ _zancun7 ++;sec on d_flag =0;} _if (zancun7 <1){if (temp_flag2 ==1){ 一readtemp_ds18b20(); // 读取温度temp_flag2 =0;厂dis_temp(); //温度显示函数}if (zancun7 >=1){temp_flag2 =1;zancun4 =hour_count &0xf0;zancun4 >>=4;zancun5 =minute_count&0xf0;zancun5 >>=4;zancun6 =sec on d_co unt&0xf0;zancun6 >>=4;dis(za ncun4 ,hour_co unt &0x0f,za ncun5,minu te_co unt &0x0f,za ncun 6,sec ond_ cou nt &0x0f);dis_led();if (zancun7 ==5)zancun7 =0;}}if (flag1 !=0){switch (flag1){case 1:dis(5,10,11,1,12,12); // 显示SET1led1_bit =1;led2_bit =1;break;case 2:dis(5,10,11,2,12,12); // 显示SET2break;case 3:dis(5,10,11,3,12,12); // 显示SET3break;case 4:dis(5,10,11,4,12,12); // 显示SET4break;case 5:dis(5,10,11,5,12,12); // 显示SET5break;case 6:dis_san(zancun1 / 10,zancunl %10,zancun2/ 10,zancun2 %0,12,12,1); break;case 7:dis_san(zancun1 / 10,zancunl %10,zancun2/ 10,zancun2 %0,12,12,2); break;case 8:dis_san(zancun1 / 10,zancunl %10,zancun2/ 10,zancun2 %0,12,12,3); break;case 9: //进入修改时间，时间分位个位闪烁dis_san(zancun1 / 10,zancunl %10,zancun2/ 10,zancun2 %0,12,12,4); break;case 10: //进入修改闹钟，闹钟小时十位闪烁dis_san(zancunl / 10,zancunl %10,zancun2/ 10,zancun2 %0,12,zancun3,1); break;case 11://进入修改闹钟，闹钟小时个位闪烁dis_san(zancun1 / 10,zancunl %10,zancun2/ 10,zancun2%0,12,zancun3,2); break;case 12: //进入修改闹钟，闹钟小时十位闪烁dis_sa n(zan cu n1 / 10,za ncun1 %10,za ncun 2/ 10,za ncu n2%0,12,za ncun 3,3);break;case 13: //进入修改闹钟，闹钟小时个位闪烁dis_sa n(zan cu n1 / 10,za ncun1 %10,za ncun 2/ 10,za ncu n2%0,12,za ncun 3,4);break;case 14: //进入修改闹钟的开关dis_sa n(zan cu n1 / 10,za ncun1 %10,za ncun 2/ 10,za ncu n2%0,12,za ncun 3,6);break;case 15:dis_sa n(zancun1 / 10,za ncun1 %10,za ncun 2/ 10,za ncun 2%0,za ncun3/ 10,za ncun 3%10,1);break;case 16:dis_san(zancun1 / 10,zancunl %10,zancun2/10,zancun2%0,zancun3/ 10,zancun3%10,2);break;case 17:dis_san(zancun1 / 10,zancunl %10,zancun2/ 10,zancun2%0,zancun3/ 10,zancun 3%10,3);break;case 18:dis_sa n(zancun1 / 10,za ncun1 %10,za ncun 2/ 10,za ncun 2%0,za ncun3/ 10,za ncun 3%10,4);break;case 19:dis_sa n(zancun1 / 10,za ncun1 %10,za ncun 2/ 10,za ncun 2%0,za ncun3/ 10,za ncun 3%10,5);break;case 20:dis_sa n(zancun1 / 10,za ncun1 %10,za ncun 2/ 10,za ncun 2%0,za ncun3/ 10,za ncun 3%10,6);break;case 21:if (second_flag ==1){ _sec on d_flag =0;countdown_second --;if (countdown_second ==255){ _coun tdow n_sec ond =59;countdown_minute --;if (countdown_minute ==255){ _coun tdow n_min ute =59;countdown_hour --;if (countdown_hour ==255){flag1 =22;coun tdow n_min ute =0;coun tdow n_hour =0;coun tdow n_sec ond =0;coun tdow n_flag=1;_ } } } }dis(countdown_hour / 10,countdown_hour %10,countdown_minute / 10,countdown _minute%10,countdown_second/ 10,countdown_second%10); //break; case 22:{ speak =1;}dis(countdown_hour / 10,countdown_hour %10,countdown_minute / 10,countdown _minute%10,countdown_second/ 10,countdown_second%10); //break; case 23: dis(msecond_minute / 10,msecond_minute%10,msecond_second/ 10,msecond_sec on d%10,mseco nd_msec on d%0,12);break; case 24:if (msecond_flag ==1) { _msec on d_flag =0; msec on d_msec ond ++;if (msecond_msecon (==10){msec on d_msec ond =0; msec on d_sec ond ++;if (msecond_second==60) { _msecond_second =0; msec ond_minute ++;if (countdown_flag { _speak=0;if (second_flag { _sec on d_flag coun tdow n_flag} _ } else>0 &&countdown_flag <7)==1) =0； ++；if (msecond_minute==1OO) { _msec ond_minute =99;flagl =23;}}}}dis(msecond_minute / 10,msecond_minute%10,msecond_second/ 10,msecond_sec on d%10,mseco nd_msec on d%0,12);break;case 25:dis(zancun3 / 10,zancun3 %0,zancun2 / 10,zancun2 %10,zancun1 /10,zancun1 %0 );break;default :break;}}}//**************************************************〃S1按键处理函数void judge_s1(){ _s1_bit =1;//置IO为1,准备读入收据if (s1_bit ==0)//判断是否有按键按下{delay_50us(1); //延时，去除机械抖动if (s1_bit ==0){switch (flag1){case 0:case 1:case 2:case 3:case 4:case 6:case 7:case 8:case 10:case 11:case 12:case 13:case 15:case 16:case 17:case 18:case 19: flag1++;break;case 9: flag1=6;break;case 14: flag1=10;break;case 20: flag1=15;break;case 5:case 21:case 22:case 23: //系统从秒表状态复位case 24: //系统从秒表状态复位case 25: //系统从计数器复位flag1 =0;break;default :break;}while (s1_bit ==0){ _judge_dis();}〃等待按键释放}}}〃************************************************** 〃S2按键处理函数void judge_s2(){ _s2_bit =1; //置IO为1,准备读入收据if (s2_bit ==0)//判断是否有按键按下=0;{delay_50us(1); //延时，去除机械抖动 if (s2_bit ==0) { switch (flagl) { flag1 =6; zancun4 =hour_count &0xf0;zancun4 >>=4; zancun6 =hour_count &0x0f;zancun1=zancun4*10+zancun6; //zancun 1=hour_co unt; zancun5 =minute_count &0xf0; zancun5 >>=4; zancun6 =minute_count &0x0f; zancun2 =za ncun5* 10+za ncun6; case 1: //在显示SET 状态下按S2牛，进入修改时间 // zancun2=minu te_co unt; break; case 2: //在显示SET2犬态下按S2,进入设置闹钟 zancunl =clock_hour; zancun2 =clock_m inu te; flagl =10; break; case 6: //修改时钟小时十位状态下按 case 7: //修改时钟小时个位状态下按 case 8: //修改时钟分钟十位状态下按 case 9: //修改时钟分钟个位状态下按 〃zancun4=za ncun 1/10; 测S:SM tab23[2] =zancun1/10* 16+za ncu n1%10; tab23[1] hour_c ount minu te_c ount sec ond_co unt tab23[0]set_ds1302(); flag1//zancun 5=za ncun2&0 xf0; //zancun 5>>=4; =zancun2/10* 16+za ncu n2%10; =tab23[2]; =tab23[1]; =0; //设置DS130的初始时间 =0;break; case 10: //修改闹钟小时十位状态下按S2case 11: //修改闹钟小时个位状态下按S2case 12: //修改闹钟分钟十位状态下按S2 case 13: //修改闹钟分钟个位状态下按S2 case 14: //修改闹钟使能状态下按S2clock_hour clock_m inute clock_e n flag1=zancun1; =zancun2; =zancun3;=0;break;case 3:flagl =15;zancunl =co un tdow n_hour;zancun2 =co un tdow n_minu te;zancun3 =co un tdow n_sec ond;break;case 15:case 16:case 17:case 18:case 19:case 20:coun tdow n_hour =zancun1;coun tdow n_minute =za ncun2;coun tdow n_sec ond =za ncun3;flag1 =21;coun tdow n_flag =0;break;case 22:flag1 =21;break;case 21:flag1 =22;break;case 4:flag1 =23; //秒表暂停msec ond_minute =0;msecond_second =0;msec on d_msec ond =0;break;case 23:flag1 =24;break;case 24:flag1 =23;break;case 5:flagl =25;//进入计数器模式zancunl =0;zancun2 =0;zancun3 =0;break; default :break;}while (s2_bit ==0){ _judge_dis();}//等待按键释放}}}//**************************************************//S3按键处理函数void judge_s3(){ _s3_bit =1;//置IO为1,准备读入收据if (s3_bit ==0)//判断是否有按键按下{delay_50us(1); //延时，去除机械抖动if (s3_bit ==0){ _switch (flag1){case 6: //修改时间小时的十位数zancun1 +=10;if (zancun1 >=24)zancun1 =zancun 1%10;break;case 7: //修改时间小时的个位数za ncun1 =za ncu n1/10* 10+(za ncun1 %10+1) %10;if (zancun1 >=24)zancun1 =20;break;case 8: //修改时间分钟的十位数zancun2 +=10;if (zancun2 >=60)zancun2-=60;break;case 9: //修改时间分钟的个位数za ncun2 =za ncun2/10* 10+(za ncun2 %10+1) %10;break;case 10: //修改闹钟小时的十位数zancunl +=10;if (zancunl >=24)zancunl =zancun 1%10; break;case 11: //修改闹钟小时的个位数zancunl =za ncu n1/10* 10+(za ncun1 %10+1) %10;if (zancun1 >=24)zancun1 =20;break;case 12: //修改闹钟分钟的十位数zancun2 +=10;if (zancun2 >=60)zancun2-=60; break;case 13: //修改闹钟分钟的个位数zan cu n2 =za ncun2/10* 10+(za ncun2 %10+1) %10;break;case 14:zancun3 A=1;break;case 15: //修改倒计时小时的十位数zancun1 +=10;if (zancun1 >=100)zancun 1 -=100; break;case 16: //修改倒计时小时的个位数zancun1 =za ncu n1/10* 10+(za ncun1 %10+1) %10;break;case 17: //修改倒计时分钟的十位数zancun2 +=10;if (zancun2 >=60)zancun2-=60; break;case 18: //修改倒计时分钟的个位数zan cu n2 =za ncun2/10* 10+(za ncun2 %10+1) %10;break;case 19: //修改倒计时秒的十位数zancun3 +=10;if (zancun3 >=60)zancun3-=60; break;case 20: //修改倒计时秒的个位数zan cu n3 =za ncun3/10* 10+(za ncun3 %10+1) %10;break;case 21:case 22: //coun tdow n_hour =zancun1;coun tdow n_minute =za ncun2;coun tdow n_sec ond =za ncun3;flagl =21;break;case 23:case 24: //秒表复位flag1 =24;msec ond_minute =0;msecond_second =0;msec on d_msec ond =0;break;case 25:zancun1 ++;if (zancun1 ==100){zancun1 =0;zancun2 ++;if (zancun2 ==100){zancun2 =0;zancun3 ++;}}break;default : break;}while (s3_bit ==0){ _judge_dis();}〃等待按键释放}}} //显示处理函数void judge_clock() {zancun4 =hour_count &0xf0;zancun4 >>=4;zancun6 =hour_count &0x0f;zancun4 *=10;zancun4 +=za ncun6;zancun5=minute_count &0xf0;if (san ==1){zancun5 >>=4;zancun6 =minute_count &0x0f;zancun5 *=10;zancun5 +=za ncun6;if (msecond_count<=5) {speak =0; speak_co unt ++;}else{speak =1;}}else{speak =1;}}〃****************************************////闪烁显示子程序void dis_sa n( uchar s6,uchar s5,uchar s4,uchar s3,uchars1,uchar san){if (clock_hour ==zancun4 &&clock_minute ==zancun5){ 一 一if (clock_en { _ speak_co unt clock_flag speak_co unt} _ } else{clock_flag =0;} _if{ (clock_flag ==1 ==1&&clock_flag ==0)=0; //开启蜂鸣器=1;=0;&&speak_count <400)s2,ucharif (msecond_count<5) { _ display1(s6);}}else{display1(s6);}if (san ==2){if (msecond_count<5) { _ display2(s5);}}else{display2(s5);}if (san ==3){if (msecond_count<5) { _ display3(s4);}}else{display3(s4);}if (san ==4){if (msecond_count<5) { _ display4(s3);}}else{display4(s3);}if (san ==5){if (msecond_count<5){ _ display5(s2);}}else{display5(s2);}if (san ==6){if (msecond_count<5){ _ display6(s1);}}else{ display6(s1);}}〃****************************************//时钟显示程序void dis(uchar s6,uchar s5,uchar s4,uchar s3,uchar s2,uchar s1) { display1(s6);display2(s5);display3(s4);display4(s3);display5(s2);display6(s1);}〃********************************************************************************************void init_tO(){ _TMOD0x01;〃设定定时器工作方式1,定时器定时50毫秒TH0=(65536-50000)/256;TL0=(65536- 50000)%256;EA=1; //开总中断ET0=1; //允许定时器0中断t0_crycle =0; //定时器中断次数计数单元}//LED处理函数void dis_led(){if (msecond_count<5){ _Ied1_bit =1;Ied2_bit =1;}else{led1_bit =0;led2_bit =0;}}〃***************************************************************//功能：把数据1显示在数码管1上void display6(uchar dis_data){ _smg_data =tabl1[dis_data]; // 送显示断码dis_bit6 =0; // 锁存数据delay_50us(40); dis_bit6 =1;}〃***************************************************************//功能：把数据1显示在数码管1上void display5(uchar dis_data){ _smg_data =tabl1[dis_data]; // 送显示断码dis_bit5 =0; // 锁存数据delay_50us(40);dis_bit5 =1;} _〃***************************************************************//功能：把数据1显示在数码管1上void display4(uchar dis_data){ _smg_data =tabl1[dis_data]; // 送显示断码dis_bit4 =0; // 锁存数据delay_50us(40);dis_bit4 =1;} 〃***************************************************************//功能：把数据1显示在数码管1上void display3(uchar dis_data){ _smg_data =tabl1[dis_data]; // 送显示断码dis_bit3 =0; // 锁存数据delay_50us(40);dis_bit3 =1;}〃***************************************************************//功能：把数据1显示在数码管1上void display1(uchar dis_data){ _smg_data =tabl1[dis_data]; // 送显示断码dis_bit1 =0; // 锁存数据delay_50us(40);dis_bit1 =1;}〃***************************************************************//功能：把数据1显示在数码管1上void display2(uchar dis_data){ _smg_data =tabl1[dis_data]; // 送显示断码dis_bit2 =0; // 锁存数据delay_50us(40);dis_bit2 =1;}〃******************************************************************* *******************************// 函数名称：void delay_50US(unsigned int t)//功能：延时50*t(us)void delay_50us(uint t){ _unsigned char j;for (;t >0;t --){for (j =19;j >0;j --);}}〃******************************************************************* ************〃8微秒延时基准程序void delay_8us(uint t){while (-- t);}************〃3微秒延时程序void delay_3us() {}〃******************************************************************* ************//子程序功能：向DS18B2写一字节的数据void w_1byte_ds18b20(uchar value){uchar i =0;for (i =0;i <8;i ++){dq_ds18b20 =1;delay_3us();dq_ds18b20 =0; delay_8us(2);if ( value & 0x01) dq_ds18b20 =1; 〃DQ = 1 delay_50us(1); // 延时50us 以上delay_8us(2);value >>=1;}dq_ds18b20 =1; //DQ = 1}//读一个字节uchar r_1byte_ds18b20( void){ 一一uchar i =0;uchar value = 0;for (i =0;i <8;i ++){value >>=1;dq_ds18b20 =0;// DQ_L;delay_3us();dq_ds18b20 =1; 〃DQ_H;delay_8us(2);if (dq_ds18b20==1) value |= 0x80;delay_8us(6); // 延时40us}dq_ds18b20 =1;return value ;}11 ・**************************************************〃ds18b20复位子程序void rest_ds18b20( void){rest:delay_3us(); // 稍做延时delay_3us();dq_ds18b20 =1;delay_3us();dq_ds18b20 =0;// DQ_L; delay_50us(11); 〃480us<T<960usdq_ds18b20 =1; // 拉高总线delay_8us(5);if (dq_ds18b20==1){return ;}delay_50us(2); // 延时90usif (dq_ds18b20==1){return ;}else{goto rest;}}〃****************************************************//读取温度void readtemp_ds18b20( void){ _uchar temp32;rest_ds18b20();w_1byte_ds18b20(0xcc); //跳过读序列号的操作w_1byte_ds18b20(0x44); // 启动温度转换delay_8us(2);rest_ds18b20();w_1byte_ds18b20(0xcc); //跳过读序列号的操作w_1byte_ds18b20(0xbe); //读取温度寄存器等(共可读9个寄存器)前两个就是温度templ =r_1byte_ds18b20();temph =r_1byte_ds18b20();if ((temph &0xf0)) //判断温度的正负性{temp_flag =0; //温度为负数标志temph =-temph;tempi =-templ;t_x =tabl3[templ & OxOf]; // 计算温度的小数temp32 =temph & OxOf;temp32 <<=4;tempi >>=4;temp32 =temp32 | tempi;t_b =temp32/100%10; //计算温度的百位数据t_s =temp32/10%0;〃计算温度的十位数据t_g =temp32%0;〃计算温度的个位数据5else //为正数{t_x =tabl3[templ & 0x0f]; // 计算温度的小数temp32 =temph & 0x0f;temp32 <<=4;templ >>=4;temp32 =temp32 | templ;t_b =temp32/100%10; //计算温度的百位数据t_s =temp32/10%0;〃计算温度的十位数据t_g =temp32%0;〃计算温度的个位数据temp_flag =1;} _}void dis_temp() //温度显示函数{ _if (temp_flag =1){ _if (t_b ==0){dis(12,12,t_s,t_g,13,12);}else{dis(12,t_b,t_s,t_g,13,12);}}else{dis(14,t_b,t_s,t_g,13,12);}}/ / """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" / / , ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ############ //;子程序名：w_1byte_ds1302//；功能：向DS130写一个字节的数据void w_1byte_ds1302(uchar t){uchar i;for (i =0;i <8;i ++){if (t & 0x01){io_ds1302=1;}else{io_ds1302 =0;}clk_ds1302 =1;delay_3us();delay_3us();clk_ds1302 =0;delay_3us();delay_3us();t >>=1;}}/ / , ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ######//;子程序名：r_1byte_ds1302()//;功能：从DS130读一个字节的数据uchar r_1byte_ds1302(){ 一一uchar i,temp11 =0;io_ds1302 =1;//置10为1,准备读入数据for (i =0;i <8;i ++){temp11 >>=1;if (io_ds1302) temp11 |= 0x80;clk_ds1302 =1;delay_3us();delay_3us();clk_ds1302 =0;delay_3us();}return (temp11);}/ / """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""/ / , JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ """""""""""""""ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff//;子程序名：setbds1302//;功能：设置DS130初始时间,并启动计时void set_ds1302(){uchar i,j;rest_ds1302 =0;delay_3us();clk_ds1302 =0;delay_3us();rest_ds1302 =1;delay_3us();w_1byte_ds1302(0x8e); // 写控制命令字delay_3us();w_1byte_ds1302(0x00); // 写保护关闭clk_ds1302 =1;delay_3us();for (i =0,j =0x80;i <7;i ++,j +=2){rest_ds1302 =0;delay_3us();clk_ds1302 =0;delay_3us();rest_ds1302 =1;delay_3us();w_1byte_ds1302(j);delay_3us();w_1byte_ds1302(tab23[i]);delay_3us();delay_3us();clk_ds1302 =1;delay_3us();rest_ds1302 =0;delay_3us();delay_3us();} _rest_ds1302 =0;delay_3us();clk_ds1302 =0;delay_3us();rest_ds1302 =1;delay_3us();w_1byte_ds1302(0x8e); delay_3us();w_1byte_ds1302(0x80); clk_ds1302 =1;delay_3us();rest_ds1302 =0;delay_3us();}/ / """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" / / , ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff //；子程序名：get1302void get_ds1302(){ _uchar temp11[7],i,j;for (i =0;i <7;i ++){temp11[i] =0;}for (i =0,j =0x81;i <7;i ++,j +=2){rest_ds1302 =0;delay_3us();clk_ds1302 =0;delay_3us();delay_3us();w_1byte_ds1302(j);temp11[i] =r_1byte_ds1302();delay_3us();clk_ds1302 =1;delay_3us();rest_ds1302 =0;delay_3us();} _if (temp11[0] != 0xff){second_count =temp11[0]; }if (temp11[1] != 0xff) // 数据验证{minute_count =temp11[1]; }if (temp11[2] != 0xff) // 数据验证{hour_count =temp11[2]; }// date=temp[3];//mon th=temp[4];// week=temp[5];//year=temp[6];}/*===================================================================调试要求：1. MCU:AT89S52 芯片或AT89C522. 晶振:12MHz功能：多功能时钟+温度计/#inelude <reg52. h>#inelude vintrins . h>sbit dis_bit1 =P2A 7; //定义数码管控制口sbit dis_bit2 =卩2八6;//定义数码管控制口sbit dis_bit3 =卩2八4;//定义数码管控制口sbit dis_bit4 =卩2八3;//定义数码管控制口sbit dis_bit5 =卩2八1； //定义数码管控制口sbit dis_bit6 =P2A0； //定义数码管控制口sbit led1_bit =卩2八2; // 定时 LED 勺控制口sbit led2_bit =卩2八5; // 定时 LED 勺控制口sbit s1_bit =P1A0; // 定义S1 控制口sbit s2_bit =P01； // 定义 S2空制口sbit s3_bit =P02; // 定义 S3控制口sbit dq_ds18b20 =P3A3;// 定义控制 DS18B20 sbit speak =P3A7; //定义蜂鸣器控制口sbit clk_ds1302 =P3A6; // 定义控制 DS1302勺时钟线 sbit io_ds1302 =P3A5;//定义控制DS1302勺串行数据sbit rest_ds1302 =P3A4;#define smg_data P0 //定义数码管数据口 void delay_3us(); //3US 的延时程序 void delay_8us(ui nt t); //8US 延时基准程序void delay_50us(ui nt t); // void display1(uehardis_data); voiddisplay2(uehar dis_data); void display3(uehar dis_data); void display4(uehar dis_data); void display5(uehar dis_data); void display6(uehar dis_data);void init_t0(); //定时器0初始化函数void dis_led(); //LED 处理函数void judge_s1();//S1 按键处理函数 void judge_s2(); //S2 按键处理函数void judge_s3(); //S3 按键处理函数 void dis(uehar s6,uehar s5,uehar s4,uehar s3,uehar s2,uehar s1); 示子程序 void dis_sa n( uchar s6,uehar s5,uehar s4,uehar s3,uehars1,uchar san); 〃闪烁显示子程序void judge_dis(); //显示处理函数void judge_clock(); // 显示处理函数void set_ds1302(); // 设置时间void get_ds1302(); // 读取当前时间#define uehar#define uintunsigned char unsigned int延时50*T 微妙函数的声明//数码管1显示子程序 //数码管2显示子程序 //数码管3显示子程序//数码管4显示子程序//数码管5显示子程序//数码管6显示子程序 //显s2,ueharvoid w_1byte_ds1302(uchar t); // 向DS130写一个字节的数据uchar r_1byte_ds1302(); // 从DS130读一个字节的数据〃*******************************************************************//DS18B20测温函数定义void w_1byte_ds18b20(uchar value); // 向DS18B2写一个字节ucharr_1byte_ds18b20( void ); // 从DS18B2读取一个字节的数据voidrest_ds18b20( void ); //DS18B20复位程序void readtemp_ds18b20( void ); // 读取温度void dis_temp(); //温度显示函数//共阳数码管断码表const uchar tabl1[16] ={ 0xc0,0xf9,0xa4,0xb0,0x99,0x92,// 0 1 2 3 4 50x82,0xf8,0x80,0x90,0x86,0x87,0xFF,//6 7 8 9 E T B0xc6,0xbf,0xff };// C -const uchar tabl3[] ={ 0x00,0x01,0x01,0x02,0x03,0x03,0x04,0x04,0x05,0x06,0x06,0x07,0x08,0x08,0x09,0x09 };uchar t0_crycle;uchar hour_co un t, minu te_c oun t,sec on d_co un t,msec ond_count;uchar clock_hour,clock_m inu te;uchar coun tdow n_sec ond;uchar coun tdow n_hour,co un tdow n_min ute;uchar clock_en; //闹钟关闭和开启的标志，1开启，0关闭uchar flag1,sec on d_flag,za ncun 1,za ncun 2,za ncun3;uchar zancun4 ,za ncun 5,za ncun 6,za ncun7;uchar clock_flag,co un tdow n_flag;uchar msec on d_mi nute,msec on d_sec on d,mseco nd_mseco nd,mseco nd_flag; // 秒表相关参数uint speak_c ount;uchar templ,temph,temp_flag;uchar t_b,t_s,t_g,t_x,temp_flag2; //从左到右分别存储温度百位，十位，个位，小数位上电时默认的uchar tab23[3]; 〃二{0x40,0x59,0x23,0x28,0x11,0x06,0x09};//时间//主程序void main(){P3 =0x00;flag1 =0;zancun3 =0;msecond_minute =0; //置秒表相关参数为0msecond_second =0;msec on d_msec ond =0;speak =1;//关闭蜂鸣器speak_co unt =0;clock_hour =0;clock_m inute =0;clock_flag =0;countdown_flag =0; //倒计时标志位为0clock_en =0;//开机时默认关闭闹钟ini t_t0();TR0 =1;//// set_ds1302();〃设置DS130的初始时间//接下来开始编写让数码管显示的程序while (1){get_ds1302();judge_dis(); // 显示处理judge_s1();judge_s2();judge_s3();judge_clock(); //闹钟处理程序} _}void timer0() interrupt 1{TH0=(65536-50000)/256;TL0=(65536- 50000)%256;t0_crycle ++;if (t0_crycle ==2) // 0.1 秒{t0_crycle =0;msec on d_flag =1;msec ond_count ++;if (msecond_count==10)//1 秒。
C语言51单片机时钟程序
} /*----------------------- 主函数 ------------------------- */
/*主函数*/
void main()
{
init_timer();
/*定时器 T0 初始化*/
while(1) /*无限循环*/
{
if(P2_4==0)scan_key(); /*有按键，调用按键扫描?函数*/
switch(set)
/*根据 set 键值散转*/
{
case 0:time(); break; /*走时时间程序*/
程序三
同时用两个定时器控制蜂鸣器发声， 定时器 0 控制频率，定时器 1 控制同个 频率持续的时间，间隔 2s 依次输出 1，10，50,100，200,400,800, 1k（hz）的方波
#include<reg52.h> //52 单片机头文件 #include <intrins.h> //包含有左右循环移位子函数的库 #define uint unsigned int //宏定义 #define uchar unsigned char //宏定义 sbit beep=P2^3;
ET0=1;//开定时器 0 中断
TR0=1;//启动定时器 0
a=0xfe;
while(1);//等待中断产生
}
void timer0() interrupt 1 { TH0=(65536-50000)/256; TL0=(65536-50000)%256; tt++; if(tt==2) {
8位数码管显示电子时钟c51单片机程序
8位数码管显示电子时钟c51单片机程序 /*8位数码管显示时间格式 055000 标示05点50分00秒S1 用于小时加1操作S2 用于小时减1操作S3 用于分钟加1操作S4 用于分钟减1操作*/#includereg52.hsbit KEY1=P3^0; //定义端口参数sbit KEY2=P3^1;sbit KEY3=P3^2;sbit KEY4=P3^3;sbit LED=P1^2; //定义指示灯参数code unsigned chartab[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f}; //共阴极数码管09unsigned char StrTab[8]; //定义缓冲区unsigned char minute=19,hour=23,second; //定义并初始化为12:30:00void delay(unsigned int cnt){while(cnt);}/********************************************************** ********//* 显示处理函数 *//********************************************************** ********/void Displaypro(void){StrTab[0]=tab[hour/10]; //显示小时StrTab[1]=tab[hour%10];StrTab[2]=0x40; //显示StrTab[3]=tab[minute/10]; //显示分钟StrTab[4]=tab[minute%10];StrTab[5]=0x40; //显示StrTab[6]=tab[second/10]; //显示秒StrTab[7]=tab[second%10];}main(){TMOD |=0x01; //定时器0 10ms inM crystal 用于计时TH0=0xd8; //初值TL0=0xf0;ET0=1;TR0=1;TMOD |=0x10; //定时器1用于动态扫描 TH1=0xF8; //初值TL1=0xf0;ET1=1;TR1=1;EA =1;Displaypro(); //调用显示处理函数while(1){if(!KEY1) //按键1去抖以及动作{delay(10000);if(!KEY1){hour++;if(hour==24)hour=0; //正常时间小时加1Displaypro();}if(!KEY2) //按键2去抖以及动作 {delay(10000);if(!KEY2){hour;if(hour==255)hour=23; //正常时间小时减1 Displaypro();}}if(!KEY3) //按键去抖以及动作{delay(10000);if(!KEY3){minute++;if(minute==60)minute=0; //分加1Displaypro();}if(!KEY4) //按键去抖以及动作{delay(10000);if(!KEY4){minute;if(minute==255)minute=59; //分减1Displaypro();}}}}/********************************************************** ********//* 定时器1中断 *//********************************************************** ********/void time1_isr(void) interrupt 3 using 0 //定时器1用来动态扫描static unsigned char num;TH1=0xF8; //重入初值TL1=0xf0;switch (num){case 0:P2=0;P0=StrTab[num];break; //分别调用缓冲区的值进行扫描case 1:P2=1;P0=StrTab[num];break;case 2:P2=2;P0=StrTab[num];break;case 3:P2=3;P0=StrTab[num];break;case 4:P2=4;P0=StrTab[num];break;case 5:P2=5;P0=StrTab[num];break;case 6:P2=6;P0=StrTab[num];break;case 7:P2=7;P0=StrTab[num];break;default:break;}num++; //扫描8次，使用8个数码管if(num==8)num=0;}/******************************************************************//* 定时器0中断 *//********************************************************** ********/void tim(void) interrupt 1 using 1{static unsigned char count; //定义内部局部变量TH0=0xd8; //重新赋值TL0=0xf0;count++;switch (count){case 0:case 20:case 40:case 60:case 80:Displaypro();break; //隔一定时间调用显示处理case 50:P1=~P1;break; //半秒 LED 闪烁default:break;}if (count==100){count=0;second++; //秒加1 if(second==60){second=0;minute++; //分加1 if(minute==60){minute=0;hour++; //时加1 if(hour==24)hour=0;}}}}。
(汇编)实现数码管显示年,月,日,时,分,秒,星期,温度,按键可调万年历
;///////////////////////////////////////////;本程序源代码由湖南工程职业技术学院提供.;专业单片机培训,让你学习单片机更容易.;程序员：蒋庆桥;QQ:xxxxxxxxx;本程序用汇编实现数码管显示年，月，日，时，分，秒，星期，温度，按键可调万年历，H_ADJ BIT P3.0 ;时/年调整M_ADJ BIT P3.1 ;分/月调整S_ADJ BIT P1.4 ;秒/日调整DT_SET BIT P1.6 ;时间/日期选择STR BIT P1.5;启动走时T_RST BIT P1.0 ;实时时钟复位线引脚T_CLK BIT P1.1 ;实时时钟时钟线引脚T_IO BIT P1.2 ;实时时钟数据线引脚HH_BIT EQU 40H ;时高位HL_BIT EQU 41H ;时低位MH_BIT EQU 42H ;分高位ML_BIT EQU 43H ;分低位SH_BIT EQU 44H ;秒高位SL_BIT EQU 45H ;秒低位TEMPER_L EQU 46HTEMPER_H EQU 47HYH_BIT EQU 48H ;年高位YL_BIT EQU 49H ;年低位MOH_BIT EQU 4aH ;月高位MOL_BIT EQU 4bH ;月低位DH_BIT EQU 4cH ;日高位DL_BIT EQU 4dH ;日低位SEC EQU 30HMIN EQU 31HHOUR EQU 32HDAY EQU 33HMONTH EQU 34HWEEK EQU 35HYEAR EQU 36HTEMPER equ 37hFLAG1 BIT 20h.0 ;DS18B20存在标志位DQ BIT P1.3A_BIT EQU 55HB_BIT EQU 56HDS1302_ADDR EQU 5EHDS1302_DATA EQU 5FHORG 00HLJMP STARTSTART:MOV SP,#60HMOV TMOD,#11HMOV TH0,#3CHMOV TL0,#0B0HMOV R0,#10SETB EASETB ET0SETB TR0MOV R1,37HMOV YEAR,#13H ;上电预置日期、时间MOV WEEK,#03H ;周1 MONMOV MONTH,#07H ;2011 04 25 12:00:00MOV DAY,#05HMOV HOUR,#23HMOV MIN,#00HMOV SEC,#00HMOV 50H,#0/////////////////////////////////////////////////////////////////////// ////MAIN:LCALL KEY//MAIN2:CALL FENLILCALL INIT_18B20LCALL GET_TEMPERcall CHANGEcall dispcall displayAJMP MAINFENLI:MOV A,YEARMOV B,#10HDIV ABMOV YL_BIT,BMOV YH_BIT,AMOV A,MONTHMOV B,#10HDIV ABMOV MOL_BIT,BMOV MOH_BIT,AMOV A,DAYMOV B,#10HDIV ABMOV DL_BIT,BMOV DH_BIT,AMOV A,HOURMOV B,#10HDIV ABMOV HL_BIT,BMOV HH_BIT,AMOV A,MINMOV B,#10HDIV ABMOV ML_BIT,BMOV MH_BIT,AMOV A,SECMOV B,#10HDIV ABMOV SL_BIT,BMOV SH_BIT,ARETKEY: ;按键子程序JB F0,MAIN10 ;F0=1,开始走时。
电子设计自动化(EDA)_数字时钟程序模块(LED数码管显示)_实验报告
电子设计自动化(EDA)—数字时钟LED数码管显示二、实验内容和实验目的1. 6个数码管动态扫描显示驱动2. 按键模式选择(时\分\秒)与闹钟(时\分)调整控制,3. 用硬件描述语言(或混合原理图)设计时、分、秒计数器模块、闹钟模块、按键控制状态机模块、动态扫描显示驱动模块、顶层模块。
要求使用实验箱左下角的6个动态数码管(DS6 A~DS1A)显示时、分、秒；要求模式按键和调整按键信号都取自经过防抖处理后的按键跳线插孔。
实验目的: 1）学会看硬件原理图, 2）掌握FPGA硬件开发的基本技能3）培养EDA综合分析、综合设计的能力三、实验步骤、实现方法(或设计思想)及实验结果主要设备: 1）PC机, 2）硬件实验箱, 3）Quartus II软件开发平台。
1．打开Quartus II , 连接实验箱上的相关硬件资源, 如下图1所示。
2．建立新文件, 选择文本类型或原理图类型。
3. 编写程序。
4．编译5. 仿真, 加载程序到芯片, 观察硬件输出结果(数码管显示)6．结果正确则完成。
若结果不正确, 则修改程序, 再编译, 直到正确。
模24计数器模块LIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;USE IEEE.STD_LOGIC_UNSIGNED.ALL;USE IEEE.STD_LOGIC_ARITH.ALL;ENTITY count24 ISPORT(clk,en:IN STD_LOGIC;cout:OUT STD_LOGIC;hh,hl:OUT STD_LOGIC_VECTOR(3 DOWNTO 0));END count24;ARCHITECTURE arc OF count24 ISSIGNAL a,b:STD_LOGIC_VECTOR(3 DOWNTO 0);BEGINPROCESS(clk,en)BEGINhh<=a;hl<=b;IF(clk'EVENT AND clk='1') THENIF(en='1') THENIF(a="0010" AND b="0011") THENa<="0000";b<="0000";ELSE IF(b="1001") THENa<=a+'1';b<="0000";ELSE b<=b+'1';END IF;END IF;IF(a="0010" AND b="0010") THENcout<='1';ELSE cout<='0';END IF;END IF;END IF;END PROCESS;END arc;模60计数器模块LIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;USE IEEE.STD_LOGIC_UNSIGNED.ALL;USE IEEE.STD_LOGIC_ARITH.ALL;ENTITY count60 ISPORT(clk,en:IN STD_LOGIC;cout:OUT STD_LOGIC;hh,hl:OUT STD_LOGIC_VECTOR(3 DOWNTO 0));END count60;ARCHITECTURE arc OF count60 ISSIGNAL a,b:STD_LOGIC_VECTOR(3 DOWNTO 0);SIGNAL sout:STD_LOGIC;BEGINPROCESS(clk)BEGINhh<=a; hl<=b;IF(clk'EVENT AND clk='1') THENIF(en='1') THENIF(a="0101" AND b="1001") THENa<="0000";b<="0000";ELSE IF(b="1001") THENa<=a+'1';b<="0000";ELSE b<=b+'1';END IF;END IF;END IF;END IF;END PROCESS;sout<='1' WHEN a="0101" AND b="1001" ELSE '0';cout<=sout AND en;END arc;4-7显示译码模块LIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;ENTITY segment4to7 ISPORT(s:IN STD_LOGIC_VECTOR(3 DOWNTO 0);a,b,c,d,e,f,g:OUT STD_LOGIC);END segment4to7;ARCHITECTURE arc OF segment4to7 IS SIGNAL y:STD_LOGIC_VECTOR(6 DOWNTO 0); BEGINa<= y(6);b<= y(5);c<= y(4);d<= y(3);e<= y(2); f<= y(1);g<= y(0);PROCESS(s)BEGINCASE s ISWHEN "0000"=>y<="1111110"; WHEN "0001"=>y<="0110000"; WHEN "0010"=>y<="1101101"; WHEN "0011"=>y<="1111001"; WHEN "0100"=>y<="0110011"; WHEN "0101"=>y<="1011011"; WHEN "0110"=>y<="1011111"; WHEN "0111"=>y<="1110000"; WHEN "1000"=>y<="1111111"; WHEN "1001"=>y<="1111011"; WHEN OTHERS=>y<="0000000"; END CASE;END PROCESS;END arc;带闹钟控制模块LIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;ENTITY mode_adjust_with_alarm ISPORT (adjust,mode,clk1hz: IN STD_LOGIC;clkh,enh,clkm,enm,clks,enha: OUT STD_LOGIC;clkh_a,clkm_a:OUT STD_LOGIC;mode_ss: OUT STD_LOGIC_VECTOR(2 DOWNTO 0));END mode_adjust_with_alarm;ARCHITECTURE arc OF mode_adjust_with_alarm ISTYPE mystate IS (s0,s1,s2,s3,s4,s5);SIGNAL c_state,next_state: mystate;BEGINPROCESS (c_state)BEGINCASE c_state ISWHEN s0=> next_state <= s1; clkh<=clk1hz; clkm<=clk1hz; clks<=clk1hz;enh<='0'; enm<='0'; enha<='0'; clkh_a<= '0'; clkm_a<= '0'; mode_ss <="000";WHEN s1=> next_state <= s2; clkh<=adjust; clkm<= '0'; clks<='0';enh<='1'; enm<='0';enha<='0'; clkh_a<= '0';clkm_a<= '0'; mode_ss <="001";WHEN s2=> next_state <= s3; clkh<= '0'; clkm<=adjust; clks <= '0';enh<='0';enm<='1';enha<='0'; clkh_a<= '0'; clkm_a<= '0'; mode_ss <="010";WHEN s3=> next_state <= s4; clkh<= '0'; clkm<= '0'; clks<=adjust;enh<='0'; enm<='0';enha<='0'; clkh_a<= '0'; clkm_a<= '0'; mode_ss <="011";WHEN s4=> next_state <= s5; clkh<= clk1hz; clkm<= clk1hz; clks<=clk1hz;enh<='0';enm<='0';enha<='1'; clkh_a<=adjust; clkm_a<= '0'; mode_ss <="100";WHEN s5=> next_state <= s0; clkh<= clk1hz; clkm<= clk1hz; clks<=clk1hz;enh<='0'; enm<='0'; enha<='0'; clkh_a<= '0'; clkm_a<=adjust; mode_ss <="101";END CASE;END PROCESS;PROCESS (mode)BEGINIF (mode'EVENT AND mode='1') THENc_state<=next_state ;END IF;END PROCESS;END arc;扫描模块LIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;USE IEEE.STD_LOGIC_UNSIGNED.ALL;ENTITY scan ISPORT(clk256hz:IN STD_LOGIC;ss:OUT STD_LOGIC_VECTOR(2 DOWNTO 0));END scan;ARCHITECTURE arc OF scan ISTYPE mystate IS (s0, s1,s2,s3,s4,s5);SIGNAL c_state,next_state: mystate;BEGINPROCESS ( c_state )BEGINCASE c_state ISWHEN s0=> next_state <=s1; ss<="010";WHEN s1=> next_state <=s2; ss<="011";WHEN s2=> next_state <=s3; ss<="100";WHEN s3=> next_state <=s4; ss<="101";WHEN s4=> next_state <=s5; ss<="110";WHEN s5=> next_state <=s0; ss<="111";END CASE;END PROCESS;PROCESS (clk256hz)BEGINIF (clk256hz'EVENT AND clk256hz='1') THENc_state<=next_state ;END IF;END PROCESS;END arc;复用模块LIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;ENTITY mux ISPORT(hh,hl,mh,ml,sh,sl,hha,hla,mha,mla:IN STD_LOGIC_VECTOR(3 DOWNTO 0);ss,mode_ss:IN STD_LOGIC_VECTOR(2 DOWNTO 0);y:OUT STD_LOGIC_VECTOR(3 DOWNTO 0);alarm:OUT STD_LOGIC);END mux;ARCHITECTURE arc OF mux ISSIGNAL a,hhtmp,hltmp,mhtmp,mltmp,shtmp,sltmp:STD_LOGIC_VECTOR(3 DOWNTO 0);BEGINPROCESS(mode_ss)BEGINCASE mode_ss ISWHEN "000"=>hhtmp<=hh; hltmp<=hl; mhtmp<=mh; mltmp<=ml; shtmp<=sh; sltmp<=sl;WHEN "001"=>hhtmp<=hh; hltmp<=hl; mhtmp<=mh; mltmp<=ml; shtmp<=sh; sltmp<=sl;WHEN "010"=>hhtmp<=hh; hltmp<=hl; mhtmp<=mh; mltmp<=ml; shtmp<=sh; sltmp<=sl;WHEN "011"=>hhtmp<=hh; hltmp<=hl; mhtmp<=mh; mltmp<=ml; shtmp<=sh; sltmp<=sl;WHEN "100"=> hhtmp<=hha; hltmp<=hla; mhtmp<=mha; mltmp<=mla; shtmp<=sh; sltmp<=sl;WHEN "101"=> hhtmp<=hha; hltmp<=hla; mhtmp<=mha; mltmp<=mla; shtmp<=sh; sltmp<=sl;WHEN OTHERS=>hhtmp<="0000";hltmp<="0000";mhtmp<="0000";mltmp<="0000";shtmp<="0000";sltmp<="0000"; END CASE;END PROCESS;PROCESS(ss)BEGINCASE ss ISWHEN "010"=> a <=hhtmp;WHEN "011"=> a <=hltmp;WHEN "100"=> a <=mhtmp;WHEN "101"=> a <=mltmp;WHEN "110"=> a <=shtmp;WHEN "111"=> a <=sltmp;WHEN OTHERS => a <="0000";END CASE;y<=a;END PROCESS;alarm<='1' WHEN ((hh=hha)AND(hl=hla)AND(mh=mha)AND(ml=mla)) ELSE '0';END arc;闪烁模块LIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;USE IEEE.STD_LOGIC_UNSIGNED.ALL;ENTITY blink_control ISPORT(ss,mode_ss:IN STD_LOGIC_VECTOR(2 DOWNTO 0);blink_en:OUT STD_LOGIC);END blink_control;ARCHITECTURE arc OF blink_control ISBEGINPROCESS (ss,mode_ss)BEGINIF(ss="010" AND mode_ss="001") THEN blink_en<='1';ELSIF(ss="011" AND mode_ss="001") THEN blink_en<='1';ELSIF(ss="100" AND mode_ss="010") THEN blink_en<='1';ELSIF(ss="101" AND mode_ss="010") THEN blink_en<='1';ELSIF(ss="110" AND mode_ss="011") THEN blink_en<='1';ELSIF(ss="111" AND mode_ss="011") THEN blink_en<='1';ELSIF(ss="010" AND mode_ss="100") THEN blink_en<='1';ELSIF(ss="011" AND mode_ss="100") THEN blink_en<='1';ELSIF(ss="100" AND mode_ss="101") THEN blink_en<='1';ELSIF(ss="101" AND mode_ss="101") THEN blink_en<='1';ELSE blink_en<='0';END IF;END PROCESS;END arc;Top文件LIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;USE IEEE.STD_LOGIC_UNSIGNED.ALL;ENTITY design3 ISPORT (mode,adjust,clk1hz,clk2hz,clk256hz,clk1khz:IN STD_LOGIC;alarm,a,b,c,d,e,f,g:OUT STD_LOGIC;ss:OUT STD_LOGIC_VECTOR(2 DOWNTO 0));END design3;ARCHITECTURE arc OF design3 ISCOMPONENT mode_adjust_with_alarm PORT (adjust,mode,clk1hz: IN STD_LOGIC;clkh,enh,clkm,enm,clks,enha: OUT STD_LOGIC;clkh_a,clkm_a:OUT STD_LOGIC;mode_ss: OUT STD_LOGIC_VECTOR(2 DOWNTO 0));END COMPONENT;COMPONENT scan PORT (clk256hz:IN STD_LOGIC;ss:OUT STD_LOGIC_VECTOR(2 DOWNTO 0));END COMPONENT;COMPONENT segment4to7 PORT (s: IN STD_LOGIC_VECTOR(3 DOWNTO 0);a,b,c,d,e,f,g: OUT STD_LOGIC);END COMPONENT;COMPONENT mux PORT(hh,hl,mh,ml,sh,sl,hha,hla,mha,mla:IN STD_LOGIC_VECTOR(3 DOWNTO 0);ss,mode_ss:IN STD_LOGIC_VECTOR(2 DOWNTO 0);y:OUT STD_LOGIC_VECTOR(3 DOWNTO 0);alarm:OUT STD_LOGIC);END COMPONENT;COMPONENT blink_control PORT(ss,mode_ss:IN STD_LOGIC_VECTOR(2 DOWNTO 0);blink_en:OUT STD_LOGIC);END COMPONENT;COMPONENT count24 PORT (clk,en:IN STD_LOGIC;cout:OUT STD_LOGIC;hh,hl:OUT STD_LOGIC_VECTOR(3 DOWNTO 0));END COMPONENT;COMPONENT count60 PORT (clk ,en:IN STD_LOGIC;cout:OUT STD_LOGIC;hh,hl:OUT STD_LOGIC_VECTOR(3 DOWNTO 0));END COMPONENT;SIGNALclkh,enh,clkm,enm,clks,clkh_a,clkm_a,coutm,couts,coutm_en,couts_en,cout,vcc,coutma_en,coutma,alarm1,bli nk_en,blink_tmp,enha: STD_LOGIC;SIGNAL mode_ss,ss1:STD_LOGIC_VECTOR(2 DOWNTO 0);SIGNAL hh,hl,mh,ml,sh,sl,hha,hla,mha,mla,y,i:STD_LOGIC_VECTOR(3 DOWNTO 0);BEGINvcc<='1';coutm_en <= enh OR coutm;couts_en <= enm OR couts;coutma_en<= enha OR coutma;blink_tmp<=blink_en and clk2hz;i(3)<=y(3) OR blink_tmp;i(2)<=y(2) OR blink_tmp;i(1)<=y(1) OR blink_tmp;i(0)<=y(0) OR blink_tmp;ss<=ss1;alarm<=alarm1 AND clk1khz;u1:mode_adjust_with_alarmPORT MAP( adjust,mode,clk1hz,clkh,enh,clkm,enm,clks,enha,clkh_a,clkm_a,mode_ss);u2:count24 PORT MAP(clkh,coutm_en,cout,hh,hl);u3:count60 PORT MAP(clkm,couts_en,coutm,mh,ml);u4:count60 PORT MAP(clks,vcc,couts,sh,sl);u5:count24 PORT MAP(clkh_a,coutma_en,cout,hha,hla);u6:count60 PORT MAP(clkm_a,vcc,coutma,mha,mla);u7:mux PORT MAP(hh,hl,mh,ml,sh,sl,hha,hla,mha,mla,ss1,mode_ss,y,alarm1);u8:scan PORT MAP(clk256hz,ss1);u9:blink_control PORT MAP(ss1,mode_ss,blink_en);u10:segment4to7 PORT MAP(i,a,b,c,d,e,f,g);END arc;实验结果:数字钟包括正常的时分秒计时, 实验箱左下角的6个动态数码管(DS6 A~DS1A)显示时、分、秒。
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数码管时钟显示C程序
/*数码管时钟显示led移动C程序使用共阳极数码管*/#include#include#defineuintunsignedint#defineucharunsignedchar sbitwela1=P2 ;//数码管wela管脚定义sbitwela2=P2 ;sbitwela3=P2 ;sbitwela4=P2 ;uchartime,d1,d2,d3, d4,temp,tem,aa;unsignedcharcodetable[]={0xC0,0xF9,0xA4,0xB0,0 x99,0x92,0x82,0xF8,0x80,0x90};voiddispl(chara,charb,charc,chard) ;voiddelay(uintz)//延时程序{uintx,y;for(x=z;x>0;x--)for(y=110;y>0;y--);}//主函数voidmain(){time=0;TMOD=0x01;//中断定时初始化TH0=(65536-50000)/256;TL0=(65536-50000)%256;EA=1;ET0=1; TR0=1;aa=0;temp=0xfe;tem=0xff;d1=0;d2=0;d3=0;d4=0;while(1){i f(time==12月1号********//#include“at89x52.h“#defineucharunsignedchar#defineuin tunsignedintucharcodetab[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82, 0xf8,0x80,0x90,0xbf,0xff};ucharn;ucharhh,mm,ss;ucharnhh,nmm,ns s;uintyear;ucharday,mon,week;ucharhhs,hhg,mms,mmg,sss,ssg;ucha rdays,dayg,mons,mong;ucharnhhs,nhhg,nmms,nmmg,nsss,nssg;ucha rset1=1,set2=1;sbitfm=P3 ;sbitk1=P3 ;sbitk2=P3 ;sbitk3=P3 ;s bitk4=P3 ;uchartable1[]={31,31,29,31,30,31,30,31,31,30,31,30,31} ;//闰年uchartable2[]={31,31,28,31,30,31,30,31,31,30,31,30,31};//非闰年
voidjishi();voidbaoshi();voidalarm();voidset_time();voidset_alarm(); voidset_mdw();voidkey_change();voidkey_set();voiddelay(intm)//延时程序，延时m*0.5ms{uinti;uintj;for(i=0;i=250)//半秒，五百一秒{i=0;k++;flash=~flash;dop=!dop;}if(k>=2)//大于二归零{k=0;sec++;}if(sec>=60)//秒{sec=0;min++;}if(min>=60)//分{min=0;hour++;}if(hour>=24)//小时hour=0;P0=0xff;//P0初始化为全111111111if(mode==0)//正常显示{switch(j)//控制语句{case0:P0=seven_seg[sec%10];P2=0xfe;break;//秒个位case1:P0=seven_seg[sec/10];P2=0xfd;break;//秒十位case2:P0=seven_seg[min%10];P0_7=dop;P2=0xfb;break;case3:P0= seven_seg[min/10];P2=0xf7;break;case4:P0=seven_seg[hour%10];P 0_7=dop;P2=0xef;break;//dop为小数点case5:P0=seven_seg[hour/10];P2=0xdf;break;}}////////////////////if(mo de==1)//模式一C1状态{switch(j){case0:P0=seven_seg[min%10];P2=0xfe;break;case1:P0= seven_seg[min/10];P2=0xfd;break;case2:P0=seven_seg[hour%10]|fl ash;P2=0xfb;break;//flash为闪烁case3:P0=seven_seg[hour/10]|flash;P2=0xf7;break;case4:P0=seven_ seg[1];P2=0xef;break;//1为C1状态case5:P0=0xc6;P2=0xdf;break;//0xc6为显示C}}////////////////////if(mode==2)//模式二C1状态{switch(j){case0:P0=seven_seg[min%10]|flash;P2=0xfe;break;case1
:P0=seven_seg[min/10]|flash;P2=0xfd;break;case2:P0=seven_seg[h our%10];P2=0xfb;break;case3:P0=seven_seg[hour/10];P2=0xf7;bre ak;case4:P0=seven_seg[1];P2=0xef;break;case5:P0=0xc6;P2=0xdf;b reak;}}////////////////////if(mode==3)//模式三C2状态{switch(j){case0:P0=seven_seg[min_rom%10];P2=0xfe;break;case1 :P0=seven_seg[min_rom/10];P2=0xfd;break;case2:P0=seven_seg[h our_rom%10]|flash;P2=0xfb;break;case3:P0=seven_seg[hour_rom/1 0]|flash;P2=0xf7;break;case4:P0=seven_seg[2];P2=0xef;break;case5 :P0=0xc6;P2=0xdf;break;}}////////////////////if(mode==4)//模式四C2状态{switch(j){case0:P0=seven_seg[min_rom%10]|flash;P2=0xfe;break; case1:P0=seven_seg[min_rom/10]|flash;P2=0xfd;break;case2:P0=se ven_seg[hour_rom%10];P2=0xfb;break;case3:P0=seven_seg[hour_r om/10];P2=0xf7;break;case4:P0=seven_seg[2];P2=0xef;break;case5 :P0=0xc6;P2=0xdf;break;}}j++;if(j>=6)j=0;}voidkey(void)//调用开关函数{////////////////if(key_set==0)//设置{delay(300);if(key_set==0)key_set_s=1;}if(key_set==1if(mode>=5) mode=1;key_set_s=0;}/////////if(key_up==0)//上调{delay(300);if(key_up==0)key_up_s=1;}if(key_up==1if(mode==2) min++;if(mode==3)hour_rom++;if(hour_rom>=24)hour_rom=0;if( mode==4)min_rom++;if(min_rom>=60)min_rom=0;key_up_s=0;}// ///////////////if(key_down==0)//下调
{delay(300);if(key_down==0)key_down_s=1;}if(key_down==1if(h our<0)hour=23;if(mode==2)min--;if(min<0)min=59;if(mode==3)ho ur_rom--;if(hour_rom<0)hour_rom=23;if(mode==4)min_rom--;if(m in_rom<0)min_rom=59;key_down_s=0;}/////////////////if(key_reset== 0)//复位{delay(300);if(key_reset==0)key_reset_s=1;}if(key_reset==1mode= 0;}}voidtimer0_init(void)//timero初始化函数{TMOD=0x01;//方式1TH0=0xf8;TL0=0x2f;EA=1;//中断开关ET0=1;//中断小开关TR0=1;//开始计数}voidmain(void)//主函数{timer0_init();while(1)key();{if(hour==hour_rom//buzzer为蜂鸣器}}。