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1、【精品文档】如有侵权，请联系网站删除，仅供学习与交流智能电子钟（LCD）应用电子专业综合课程设计.精品文档.专业综合课程设计报告题目：智能电子钟（LCD）题目智能电子钟（LCD）一、 设计要求：制作一个LCD显示的智能电子钟：(1) 计时：秒、分、时、日、月、年、星期。(2) 闰年自动判别。(3) 时间、年、月、日、星期交替显示。(5) 自定任意时刻自动开/关屏。(6) 计时精度：误差1秒/月（具有微调设置）。二、 方案论证：本实验可采用并行时钟芯片（DS12C887）和串行时钟芯片(DS1302)，DS1302要用户自己安装后备电池和串口通讯，要32.768KHz的晶振，而DS12C887自
2、带后备电池，并口通讯，无需外围元件，并且DS12C887多了一个字节来记录世纪使用的，处在RAM的32H单元，但是其他的寄存器定义都相同。由于本实验用到了STC12C5A60S2直插40P封装的单片机、nokia5110液晶屏、独立式按键、四路2输入与门并且都是直插的，而且在实验室做PCB只能是单层板，为了节约空间和简化电路于是就选用了串行时钟芯片DS1302。三、 理论设计：用CAD软件绘制的硬件原理图电源和程序下载端口，此部分的USB可提供电源和下载端口适用于USB下载端口，DOWN端口适用于四角插针式下载、BAT为备用电源端口。CPU主控部分，此部分采用的是高速51系列的STC12C5A
3、60S2的单片机，该芯片不仅运行速度快稳定驱动能力更大，还为用户提供了内部集成8位/10位可调分辨率ADC模块(在此设计中有用到)，1KB可擦写EEPROM本设计中用其设计成可调闹钟功能存放闹钟值。此图为串行数据nokia5110的LCD显示器模块，采用可控背光和可控电源有很好的节能效果。该显示器能显示汉字，字符，图片、并且处理显示数据速度快。此模块为串行数据实时时钟模块，此模块采用的是达拉斯公司生产的DS1302具有闰年补偿。此图为按键中断模块，在此模块中每个独立式按键都能申请外部中断及时处理按键按下的值来执行用户的操作。此图为蜂鸣器模块此模块用于闹钟铃声设计，和开机提示。此图为PCB版图此
4、图为PCB打印预览软件流程图开始按键检测，判断按键是否按下yes其他键yes按下目录键NO时间处理初始化时钟功能1（时间）内部子程序，包括键值处理，加减上下，确认，背光控制，闹钟，时间日期的设置温度处理读数据功能2（温度）电压处理数据处理功能3（电压）显示闹钟处理功能4（闹钟）返回程序清单完整C程序源代码* 主程序：顶层程序 * * 显示默认功能：时间日期显示； * 调用子程序； *# include # include zimo.h /字模程序；# include nokia5110.h/5110驱动程序；# include ds1302.h /ds1302驱动程序；# include ke
5、y.h /按键扫描程序；# include printf.h /显示函数；# include power.h /电源模块；# include main.h /引脚定义；# include delay.h /延时函数；# include macroandconst.h/数据类型宏定义；# include ADC.H /ADC电压测量# include ds18b20.h /温度模块；void main()system_inint();/系统初始化；/Set_RTC();while(1)checkclock();caidan(); /菜单显示；if(menue=0)if(ok=1) LCD_cle
6、ar(); /清屏幕while(menue=0) /由此进入时钟功能ok=0;logo();Read_RTC();/读取时钟；data_change();/时钟数据处理tiaozheng_flag();date_time(); /显示年月日时分秒；week();/星期处理;set_date_time();/设置改变时间和日期；powervcc();checkclock();LCD_clear(); /清屏幕else if(menue=1)/由此进入温度检测功能if(ok=1) LCD_clear(); /清屏幕while(menue=1)temperatuercheck();ok=0;LCD_
7、clear(); /清屏幕elseif(menue=2) /由此进入电压测量功能if(ok=1) LCD_clear(); /清屏幕while(menue=2)power();/电量检测 ok=0;LCD_clear(); /清屏幕else if(menue=3)/由此进入闹钟功能if(ok=1) LCD_clear(); /清屏幕while(menue=3)clock();ok=0;checkclock();LCD_clear(); /清屏幕else LCD_clear(); caidan();void extern0() interrupt 0 /*外部中断0中断函数定义；*/key();
8、 * 子程序：底层程序 * * 功能：时间日期数据处理； *# include # include macroandconst.h# include stc12c5a60s2.h# include nokia5110.hsbit SCK = P02;/DS1302时钟;sbit SDA = P01;/DS1302数据;sbit RST = P00;/ DS1302复位;uchar l_tmpDate=0,0,0,1,1,1,13;/秒分时日月周年08-05-15 12:00:00uchar l_tmpdisplay13;code uchar Write_rtc_address7=0x80,0x
9、82,0x84,0x86,0x88,0x8a,0x8c; /秒分时日月周年 最低位读写位code uchar Read_RTC_address7=0x81,0x83,0x85,0x87,0x89,0x8b,0x8d; /* 写一个字节 */void Write_Ds1302_Byte(unsigned char temp) unsigned char i; for (i=0;i=1; /右移一位 SCK=1;/* 写入DS1302 */void Write_Ds1302( unsigned char address,unsigned char dat ) RST=0;_nop_(); SCK=
10、0;_nop_(); RST=1; _nop_(); /启动 Write_Ds1302_Byte(address);/发送地址 Write_Ds1302_Byte(dat);/发送数据 RST=0; /恢复/* 读出DS1302数据 */unsigned char Read_Ds1302 ( uchar address ) unsigned char i,temp=0x00; RST=0;_nop_();_nop_(); SCK=0;_nop_();_nop_(); RST=1;_nop_();_nop_(); Write_Ds1302_Byte(address); for (i=0;i=1;
11、/右移一位SCK=1; _nop_(); _nop_(); SCK=0; RST=0;_nop_(); /以下为DS1302复位的稳定时间 _nop_();RST=0;SCK=0;_nop_();_nop_();_nop_();_nop_();SCK=1;_nop_();_nop_();SDA=0;_nop_();_nop_();SDA=1;_nop_();_nop_();return (temp);/返回/* 读时钟数据 */void Read_RTC(void) /读取 日历 unsigned char i,*p; p=Read_RTC_address; /地址传递 for(i=0;i7;
12、i+) /分7次读取 秒分时日月周年 l_tmpDatei=Read_Ds1302(*p); p+;/* 设定时钟数据 */void Set_RTC(void) /设定 日历uchar i,*p,tmp;for(i=0;i7;i+) /BCD处理 tmp=l_tmpDatei/10;l_tmpDatei=l_tmpDatei%10;l_tmpDatei=l_tmpDatei+tmp*16; Write_Ds1302(0x8E,0X00); /关闭写保护； p=Write_rtc_address;/传地址 for(i=0;i8)set=0;set+; /*up和down按键的检测；加减标志位*/
13、if(keyup=0)Delay10ms();if(keyup=0)LCD_BLA=1;Delay10ms();while(keyup=0); key_flag+;if(keydown=0)Delay10ms();if(keydown=0)LCD_BLA=1;Delay10ms();while(keydown=0);key_flag-; if(keymenue=0)Delay10ms();if(keymenue=0) /菜单选择标志位； Delay10ms();while(keymenue=0); LCD_BLA=1; menue+; if(menue3)menue=0; if(keyok=0
14、) Delay10ms(); if(keyok=0) /确认标志位； Delay10ms(); while(keyok=0); ok+; if(ok1)ok=0; set=0;LCD_BLA=0;TR0 = 0; if(set=2)TR0 = 0; EA=1;void set_date_time()if(set=2)/while(keyup=0|keydown=0);miao=l_tmpdisplay10*10+l_tmpdisplay11;miao=miao+key_flag;if(key_flag59)miao=0;miao=miao%10+(miao/10)*16;Write_Ds130
15、2(0x8E,0x00);Write_Ds1302(0x80,miao);Write_Ds1302(0x8E,0x80);if(set=3)/ while(keyup=0|keydown=0);fen=l_tmpdisplay8*10+l_tmpdisplay9;fen=fen+key_flag;if(fen59)fen=0;if(key_flag0)&(fen23)shi=0;if(key_flag0)&(shi31)ri=1;if(key_flag0)&(ri12)yue=1;if(key_flag0)&(yue7)zhou=1;if(key_flag0)&(zhou79)nian=0;i
16、f(key_flag0)&(nian0)nian=79;nian=nian%10+(nian/10)*16;Write_Ds1302(0x8E,0x00);Write_Ds1302(0x8C,nian);Write_Ds1302(0x8E,0x80);key_flag=0;void caidan() uchar counter; uchar function;/*光标显示位置控制*/if(menue=0)LCD_write_hanzi(0,4,10);Delay1ms(120);LCD_write_hanzi(0,0,3);Delay1ms(120);LCD_write_hanzi(0,2,1
17、0);LCD_write_hanzi(4,0,10);else if(menue=1)LCD_write_hanzi(0,0,10);Delay1ms(120);LCD_write_hanzi(0,2,3);Delay1ms(120);LCD_write_hanzi(0,4,10);LCD_write_hanzi(4,0,10);else if(menue=2)LCD_write_hanzi(0,2,10);Delay1ms(120);LCD_write_hanzi(0,4,3);Delay1ms(120);LCD_write_hanzi(0,0,10);LCD_write_hanzi(4,0
18、,10);else if(menue=3) LCD_write_hanzi(0,4,10);Delay1ms(120);LCD_write_hanzi(0,0,10);Delay1ms(120);LCD_write_hanzi(0,2,10);LCD_write_hanzi(4,0,28);elseLCD_write_hanzi(0,4,10);Delay1ms(120);LCD_write_hanzi(0,0,3);Delay1ms(120);LCD_write_hanzi(0,2,10);LCD_write_hanzi(4,0,10);for(function=0;function2;fu
19、nction+)LCD_write_hanzi(function+1,0,function+4);LCD_write_hanzi(function+1,2,function+6);LCD_write_hanzi(function+1,4,function+8); if(set2)TR0 = 1;if(TF0=1)counter+;TF0=0;if(counter=100) counter=0;LCD_BLA=0;TR0 = 0;if(menue=0)ok=1;/*闹钟程序*/void clock()Read_RTC();/读取时钟；data_change();/时钟数据处理if(set=2)/
20、while(keyup=0|keydown=0);minute+=key_flag;if(key_flag59)minute=0;EA=0;/使用iap功能时关闭中断；hour=R_EROM(1,2);/读闹钟小时数据；week2=R_EROM(1,3);/读闹钟分数据； C_EROM(1);W_EROM(1,1,minute);/写闹钟分数据；W_EROM(1,2,hour); /写闹钟小时数据；W_EROM(1,3,week2);/写闹钟星期数据；EA=1;/不使用iap功能时打开中断； key_flag=0;if(set=3)/ while(keyup=0|keydown=0);hour
21、=hour+key_flag;if(hour23)hour=0;if(key_flag0)&(hour7)week2=1;if(key_flag0)&(week21)week2=7;EA=0;/使用iap功能时关闭中断minute=R_EROM(1,1);hour=R_EROM(1,2);C_EROM(1);W_EROM(1,1,minute);W_EROM(1,2,hour);W_EROM(1,3,week2);EA=1;/不使用iap功能时打开中断；key_flag=0;EA=0;/使用iap功能时关闭中断 minute=R_EROM(1,1);hour=R_EROM(1,2);week2
22、=R_EROM(1,3);EA=1;/不使用iap功能时打开中断； clocktable0=minute/10;/分十位； clocktable1=minute%10;/分个位 clocktable2=hour/10; /时十位 clocktable3=hour%10; /时个位 clocktable4=week2; /星期；LCD_write_hanzi(2,0,28);LCD_write_shu(1,2,clocktable2);LCD_write_shu(2,2,clocktable3);/时LCD_write_shu(3,2,64);LCD_write_shu(4,2,clocktab
23、le0);LCD_write_shu(5,2,clocktable1);/分；if(clocktable4=1)LCD_write_6x8shu(10,3,23);LCD_write_6x8shu(11,3,25);LCD_write_6x8shu(12,3,24);if(clocktable4=2)LCD_write_6x8shu(10,3,30);LCD_write_6x8shu(11,3,31);LCD_write_6x8shu(12,3,15);if(clocktable4=3)LCD_write_6x8shu(10,3,33);LCD_write_6x8shu(11,3,15);LC
24、D_write_6x8shu(12,3,14);if(clocktable4=4)LCD_write_6x8shu(10,3,30);LCD_write_6x8shu(11,3,18);LCD_write_6x8shu(12,3,31);if(clocktable4=5)LCD_write_6x8shu(10,3,16);LCD_write_6x8shu(11,3,28);LCD_write_6x8shu(12,3,19);if(clocktable4=6)LCD_write_6x8shu(10,3,29);LCD_write_6x8shu(11,3,11);LCD_write_6x8shu(
25、12,3,30);if(week2=7)LCD_write_6x8shu(10,3,29);LCD_write_6x8shu(11,3,31);LCD_write_6x8shu(12,3,24);switch(set)case 0: LCD_write_6x8shu(10,4,96);LCD_write_6x8shu(11,4,96);LCD_write_6x8shu(12,4,96);LCD_write_6x8shu(13,4,96);break;case 1: LCD_write_6x8shu(10,4,96);LCD_write_6x8shu(11,4,96);LCD_write_6x8
26、shu(12,4,96);LCD_write_6x8shu(13,4,96);break;case 2:Delay100ms();LCD_write_shu(4,2,76);LCD_write_shu(5,2,76);Delay100ms(); LCD_write_6x8shu(10,4,96);LCD_write_6x8shu(11,4,23);LCD_write_6x8shu(12,4,45);LCD_write_6x8shu(13,4,50);break;case 3: Delay100ms();LCD_write_shu(1,2,76);LCD_write_shu(2,2,76);De
27、lay100ms();LCD_write_6x8shu(10,4,18);LCD_write_6x8shu(11,4,51);LCD_write_6x8shu(12,4,57);LCD_write_6x8shu(13,4,54);break;case 4:Delay100ms();LCD_write_6x8shu(10,3,98);LCD_write_6x8shu(11,3,98);LCD_write_6x8shu(12,3,98);Delay100ms();LCD_write_6x8shu(10,4,33);LCD_write_6x8shu(11,4,41);LCD_write_6x8shu
28、(12,4,41);LCD_write_6x8shu(13,4,47);break;default:LCD_write_6x8shu(10,4,96);LCD_write_6x8shu(11,4,96);LCD_write_6x8shu(12,4,96);LCD_write_6x8shu(13,4,96);set=0;break;void checkclock()key();if(hour=(l_tmpdisplay6*10+l_tmpdisplay7)&(minute=(l_tmpdisplay8*10+l_tmpdisplay9)&(week2=l_tmpdisplay12)&(set=0
29、) beep=0;else beep=1;* 子程序：底层程序 * * 功能：内部EEPROM IAP功能，存放闹钟值； * 调用子程序； *#include # include stc12c5a60s2.h #define uchar unsigned char #define uint unsigned int /以下是ISP/IAP操作时间宏定义选项 #define EN_IAP 0x83 /系统时钟 12MHz/*【IAP功能使用时调用的3个函数】*/ uchar R_EROM(uchar n,uint x); /读第n扇区，第x字节的数据 void W_EROM(uchar n,ui
30、nt x,uchar dat); /向第n扇区，第x字节写入数据dat void C_EROM(uchar n); /擦除第n扇区/*函数：禁止IAP操作，清IAP相关寄存器*/ void Q0()IAP_CONTR = 0; IAP_CMD = 0; IAP_TRIG = 0; IAP_ADDRH = 0x80; IAP_ADDRL = 0; /*函数：读一字节入口：第n扇区，第x字节 出口：dat*/uchar R_EROM(uchar n,uint x)uchar dat; uint addr; addr =(n-1)*0x0200 + x-1; IAP_CONTR = EN_IAP;
31、IAP_CMD = 1; /允许读取EEPROM IAP_ADDRL = addr; IAP_ADDRH = addr 8; IAP_TRIG = 0x5a; IAP_TRIG = 0xa5; _nop_(); dat = IAP_DATA; Q0(); return dat; /*函数：写一字节入口：第n扇区，第x字节，待写入数据dat*/void W_EROM(uchar n,uint x,uchar dat)uint addr; addr = (n-1)*0x0200 + x-1; IAP_CONTR = EN_IAP; IAP_CMD = 2; /允许编写EEPROM IAP_ADDRL = addr; IAP_ADDRH = addr 8;