- //************1602液晶顯示程序************
- #include<reg52.h>
- #include <intrins.h>
- #define uchar unsigned char
- #define uint unsigned int
- uchara,miao,shi,fen,ri,yue,nian,week,flag1,key1n,temp;
- #define yh 0x80
- #define er 0x80+0x40
- //DS1302時鐘芯片與C51之間的引腳連接定義
- sbit IO=P1^1;
- sbit SCLK=P1^0;
- sbit RST=P1^2;
- sbit ACC0=ACC^0;
- sbit ACC7=ACC^7;
- //校時按鍵與C51的引腳連接定義
- sbit key1=P1^5; //設置鍵
- sbit key2=P1^6; //加鍵
- sbit key3=P1^7; //減鍵
- //sbit buzzer=P1^3; //蜂鳴器,通過三極管9012驅動,端口低電平響
- typedef unsigned char BYTE;
- typedef unsigned int WORD;
- typedef bit BOOL ;
- extern GetTemp(void);
- extern unsigned int idata Temperature;
- extern Init18b20 ();
- //unsigned char a,b,c;
- sbit lcden=P2^7; //液晶使能位
- sbit lcdrw=P2^5; //液晶讀寫位
- sbit lcdrs=P2^6; //數據命令選擇位
- uchar code tab1[]={"2011-07-12 "}; //年顯示的固定字符
- uchar code tab2[]={"19:50:00"}; //時間顯示的固定字符
-
- void w_cmd(uint date);
- void w_data(uint date);
- /************定時器1子函數***********/
- void system_Ini()
- {
- TMOD|= 0x11;
- TH1=0x8e; //11.0592M
- TL1=0x33;
- IE= 0x8A;
- TR1 = 1;
- }
- /************延時子函數***********/
- void delay(uchar x)
- {
- uchar y,z;
- for(y=x;y>0;y--)
- for(z=110;z>0;z--);
- }
- /*************** 液晶初始化和寫命令及數據命令********************/
- void lcd_init()
- {
- lcden=0; //初始使能端
- lcdrw=0; // 寫數據選擇
- w_cmd(0x38); //設置液晶工作模式,意思:16*2行顯示,5*7點陣,8位數據
- w_cmd(0x01); //清顯示
- w_cmd(0x0c); //開顯示不顯示光標
- w_cmd(0x06); //整屏不移動,光標自動右移
- w_cmd(yh+1); //日歷顯示固定符號從第一行第1個位置之后開始顯示
- for(a=0;a<14;a++)
- {
- w_data(tab1[a]); //向液晶屏寫日歷顯示的固定符號部分
- delay(3);
- }
- w_cmd(er+2); //時間顯示固定符號寫入位置,從第2個位置后開始顯示
- for(a=0;a<8;a++)
- {
- w_data(tab2[a]); //寫顯示時間固定符號,兩個冒號
- delay(3);
- }
- }
- void w_cmd(uint date) //“寫”命令子程序
- {
- lcdrs=0;
- P0=date;
- delay(5);
- lcden=1;
- delay(5);
- lcden=0;
- }
- void w_data(uint date) //”寫“數據子程序
- {
- lcdrs=1;
- P0=date;
- delay(3);
- lcden=1;
- delay(5);
- lcden=0;
- }
- /***************DS1302有關子函數********************/
- void write_byte(uchar dat)//寫一個字節
- {
- ACC=dat;
- RST=1;
- for(a=8;a>0;a--)
- {
- IO=ACC0;
- SCLK=0;
- SCLK=1;
- ACC=ACC>>1;
- }
- }
- uchar read_byte() //讀一個字節
- {
- RST=1;
- for(a=8;a>0;a--)
- {
- ACC7=IO;
- SCLK=1;
- SCLK=0;
- ACC=ACC>>1;
- }
- return(ACC);
- }
- //----------------------------------------
- void write_1302(uchar add,uchar dat) //向1302芯片寫函數,指定寫入地址,數據
- {
- RST=0;
- SCLK=0;
- RST=1;
- write_byte(add);
- write_byte(dat);
- SCLK=1;
- RST=0;
- }
- uchar read_1302(uchar add) //從1302讀數據函數,指定讀取數據來源地址
- {
- uchartemp;
- RST=0;
- SCLK=0;
- RST=1;
- write_byte(add);
- temp=read_byte();
- SCLK=1;
- RST=0;
- return(temp);
- }
- uchar BCD_Decimal(uchar bcd) //BCD碼轉十進制函數,輸入BCD,返回十進制
- {
- uchar Decimal;
- Decimal=bcd>>4;
- return(Decimal=Decimal*10+(bcd&=0x0F));
- }
- //--------------------------------------
- void ds1302_init() //1302芯片初始化子函數(2010-01-07,12:00:00,week4)
- {
- RST=0;
- SCLK=0;
- write_1302(0x8e,0x00); //允許寫,禁止寫保護
- write_1302(0x80,0x00); //向DS1302內寫秒寄存器80H寫入初始秒數據00
- write_1302(0x82,0x53); //向DS1302內寫分寄存器82H寫入初始分數據00
- write_1302(0x84,0x19); //向DS1302內寫小時寄存器84H寫入初始小時數據12
- write_1302(0x8a,0x02); //向DS1302內寫周寄存器8aH寫入初始周數據4
- write_1302(0x86,0x12); //向DS1302內寫日期寄存器86H寫入初始日期數據07
- write_1302(0x88,0x07); //向DS1302內寫月份寄存器88H寫入初始月份數據01
- write_1302(0x8c,0x11); //向DS1302內寫年份寄存器8cH寫入初始年份數據10
- write_1302(0x8e,0x80); //打開寫保護
- }
- /********溫度顯示子函數*********/
- void write_temp(uchar add,uchar dat) //向LCD寫溫度數據,并指定顯示位置
- {
- uchargw,sw;
- gw=dat%10; //取得個位數字
- sw=dat/10; //取得十位數字
- w_cmd(er+add); //er是頭文件規定的值0x80+0x40
- w_data(0x30+sw); //數字+30得到該數字的LCD1602顯示碼
- w_data(0x30+gw); //數字+30得到該數字的LCD1602顯示碼
- w_data(0xdf); //顯示溫度的小圓圈符號,0xdf是液晶屏字符庫的該符號地址碼
- w_data(0x43); //顯示"C"符號,0x43是液晶屏字符庫里大寫C的地址碼
- }
- /******** 時間顯示子函數*********/
- void write_sfm(uchar add,uchar dat) //向LCD寫時分秒,有顯示位置加、現示數據,兩個參數
- {
- uchargw,sw;
- gw=dat%10; //取得個位數字
- sw=dat/10; //取得十位數字
- w_cmd(er+add); //er是頭文件規定的值0x80+0x40
- w_data(0x30+sw); //數字+30得到該數字的LCD1602顯示碼
- w_data(0x30+gw); //數字+30得到該數字的LCD1602顯示碼
-
- }
- /********年、月、日顯示子函數*********/
- void write_nyr(uchar add,uchar dat) //向LCD寫年月日,有顯示位置加數、顯示數據,兩個參數
- {
- uchargw,sw;
- gw=dat%10; //取得個位數字
- sw=dat/10; //取得十位數字
- w_cmd(yh+add); //設定顯示位置為第一個位置+add
- w_data(0x30+sw); //數字+30得到該數字的LCD1602顯示碼
- w_data(0x30+gw); //數字+30得到該數字的LCD1602顯示碼
-
- }
- /*******寫星期子函數*********/
- void write_week(uchar week) //寫星期函數
- {
- w_cmd(yh+0x0c); //星期字符的顯示位置
- switch(week)
- {
- case 1:w_data('M'); //星期數為1時,顯示
- w_data('O');
- w_data('N');
- break;
-
- case 2:w_data('T'); //星期數據為2時顯示
- w_data('U');
- w_data('E');
- break;
-
- case 3:w_data('W'); //星期數據為3時顯示
- w_data('E');
- w_data('D');
- break;
-
- case 4:w_data('T'); //星期數據為4是顯示
- w_data('H');
- w_data('U');
- break;
-
- case 5:w_data('F'); //星期數據為5時顯示
- w_data('R');
- w_data('I');
- break;
-
- case 6:w_data('S'); //星期數據為6時顯示
- w_data('T');
- w_data('A');
- break;
-
- case 7:w_data('S'); //星期數據為7時顯示
- w_data('U');
- w_data('N');
- break;
- }
- }
-
- /*******鍵盤掃描有關函數*********/
- void keyscan()
- {
- if(key1==0) //key1為功能鍵(設置鍵)
- {
- delay(9); //延時,用于消抖動
- if(key1==0) //延時后再次確認按鍵按下
- {
- // buzzer=0; //蜂鳴器短響一次
- // delay(20);
- // buzzer=1;
- while(!key1);
- key1n++;
- if(key1n==9)
- key1n=1; //設置按鍵共有秒、分、時、星期、日、月、年、返回,8個功能循環
- switch(key1n)
- {
-
- case1: TR0=0; //關閉定時器
- //TR1=0;
- w_cmd(er+0x09); //設置按鍵按動一次,秒位置顯示光標
- w_cmd(0x0f); //設置光標為閃爍
- temp=(miao)/10*16+(miao)%10; //秒數據寫入DS1302
- write_1302(0x8e,0x00);
- write_1302(0x80,0x80|temp);//miao
- write_1302(0x8e,0x80);
- break;
- case2: w_cmd(er+6); //按2次fen位置顯示光標
-
- //write_1602com(0x0f);
- break;
- case3: w_cmd(er+3); //按動3次,shi
- //write_1602com(0x0f);
- break;
- case4: w_cmd(yh+0x0e); //按動4次,week
- //write_1602com(0x0f);
- break;
- case5: w_cmd(yh+0x0a); //按動5次,ri
- //write_1602com(0x0f);
- break;
- case6: w_cmd(yh+0x07); //按動6次,yue
- //write_1602com(0x0f);
- break;
- case7: w_cmd(yh+0x04); //按動7次,nian
- //write_1602com(0x0f);
- break;
- case8:
- w_cmd(0x0c); //按動到第8次,設置光標不閃爍
- TR0=1;//打開定時器
- temp=(miao)/10*16+(miao)%10;
- write_1302(0x8e,0x00);
- write_1302(0x80,0x00|temp);//miao數據寫入DS1302
- write_1302(0x8e,0x80);
- break;
-
- }
- }
- }
- //------------------------------加鍵key2----------------------------
- if(key1n!=0) //當key1按下以下。再按以下鍵才有效(按鍵次數不等于零)
- {
- if(key2==0) //上調鍵
- {
- delay(10);
- if(key2==0)
- {
- // buzzer=0; //蜂鳴器短響一次
- // delay(20);
- // buzzer=1;
- while(!key2);
- switch(key1n)
- {
- case1:miao++; //設置鍵按動1次,調秒
- if(miao==60)
- miao=0;
- write_sfm(0x08,miao);
- temp=(miao)/10*16+(miao)%10;
- write_1302(0x8e,0x00);
- write_1302(0x80,temp);
- write_1302(0x8e,0x80);
- w_cmd(er+0x09);
- //write_1602com(0x0b);
- break;
- case2:fen++;
- if(fen==60)
- fen=0;
- write_sfm(0x05,fen);
- temp=(fen)/10*16+(fen)%10;
- write_1302(0x8e,0x00);
- write_1302(0x82,temp);
- write_1302(0x8e,0x80);
- w_cmd(er+6);
- break;
- case3:shi++;
- if(shi==24)
- shi=0;
- write_sfm(2,shi);
- temp=(shi)/10*16+(shi)%10;
- write_1302(0x8e,0x00);
- write_1302(0x84,temp);
- write_1302(0x8e,0x80);
- w_cmd(er+3);
- break;
- case4:week++;
- if(week==8)
- week=1;
- w_cmd(yh+0x0C) ;
- write_week(week);
- temp=(week)/10*16+(week)%10;
- write_1302(0x8e,0x00);
- write_1302(0x8a,temp);
- write_1302(0x8e,0x80);
- w_cmd(yh+0x0e);
- break;
- case5:ri++;
- if(ri==32)
- ri=1;
- write_nyr(9,ri);
- temp=(ri)/10*16+(ri)%10;
- write_1302(0x8e,0x00);
- write_1302(0x86,temp);
- write_1302(0x8e,0x80);
- w_cmd(yh+10);
- break;
- case6:yue++;
- if(yue==13)
- yue=1;
- write_nyr(6,yue);
- temp=(yue)/10*16+(yue)%10;
- write_1302(0x8e,0x00);
- write_1302(0x88,temp);
- write_1302(0x8e,0x80);
- w_cmd(yh+7);
- break;
- case7:nian++;
- if(nian==100)
- nian=0;
- write_nyr(3,nian);
- temp=(nian)/10*16+(nian)%10;
- write_1302(0x8e,0x00);
- write_1302(0x8c,temp);
- write_1302(0x8e,0x80);
- w_cmd(yh+4);
- break;
-
- }
- }
- }
- //------------------減鍵key3,各句功能參照'加鍵'注釋---------------
- if(key3==0)
- {
- delay(10); //調延時,消抖動
- if(key3==0)
- {
- // buzzer=0; //蜂鳴器短響一次
- // delay(20);
- // buzzer=1;
- while(!key3);
- switch(key1n)
- {
- case 1:miao--;
- if(miao==-1)
- miao=59;
- write_sfm(0x08,miao);
- temp=(miao)/10*16+(miao)%10;
- write_1302(0x8e,0x00);
- write_1302(0x80,temp);
- write_1302(0x8e,0x80);
- w_cmd(er+0x09);
- //write_1602com(0x0b);
- break;
- case 2:fen--;
- if(fen==-1)
- fen=59;
- write_sfm(5,fen);
- temp=(fen)/10*16+(fen)%10;
- write_1302(0x8e,0x00);
- write_1302(0x82,temp);
- write_1302(0x8e,0x80);
- w_cmd(er+6);
- break;
- case 3:shi--;
- if(shi==-1)
- shi=23;
- write_sfm(2,shi);
- temp=(shi)/10*16+(shi)%10;
- write_1302(0x8e,0x00);
- write_1302(0x84,temp);
- write_1302(0x8e,0x80);
- w_cmd(er+3);
- break;
- case 4:week--;
- if(week==0)
- week=7;
- w_cmd(yh+0x0C);
- write_week(week);
- temp=(week)/10*16+(week)%10;
- write_1302(0x8e,0x00);
- write_1302(0x8a,temp);
- write_1302(0x8e,0x80);
- w_cmd(yh+0x0e);
- break;
- case 5:ri--;
- if(ri==0)
- ri=31;
- write_nyr(9,ri);
- temp=(ri)/10*16+(ri)%10;//十進制轉換成DS1302要求的DCB碼
- write_1302(0x8e,0x00);//允許寫,禁止寫保護
- write_1302(0x86,temp);//向DS1302內寫日期寄存器86H寫入調整后的日期數據BCD碼
- write_1302(0x8e,0x80);//打開寫保護
- w_cmd(yh+10);//因為設置液晶的模式是寫入數據后,指針自動加一,所以需要光標回位
- break;
- case 6:yue--;
- if(yue==0)
- yue=12;
- write_nyr(6,yue);
- temp=(yue)/10*16+(yue)%10;//十進制轉換成DS1302要求的DCB碼
- write_1302(0x8e,0x00);//允許寫,禁止寫保護
- write_1302(0x88,temp);//向DS1302內寫月份寄存器88H寫入調整后的月份數據BCD碼
- write_1302(0x8e,0x80);//打開寫保護
- w_cmd(yh+7);//因為設置液晶的模式是寫入數據后,指針自動加一,所以需要光標回位
- break;
- case 7:nian--;
- if(nian==-1)
- nian=99;
- write_nyr(3,nian);
- temp=(nian)/10*16+(nian)%10;//十進制轉換成DS1302要求的DCB碼
- write_1302(0x8e,0x00);//允許寫,禁止寫保護
- write_1302(0x8c,temp);//向DS1302內寫年份寄存器8cH寫入調整后的年份數據BCD碼
- write_1302(0x8e,0x80);//打開寫保護
- w_cmd(yh+4);//因為設置液晶的模式是寫入數據后,指針自動加一,所以需要光標回位
- break;
-
-
- }
- }
- }
- }
- }
- /***************"TO中斷"初始********************/
- void intrupt() //"TO中斷"初始
- {
- TMOD=0x01; //選擇16位定時器0x01
- EA=1; //開總中斷
- ET0=1; //開“T0”中斷允許位
- TH0=(65536-50000)/256;
- TL0=(65536-50000)%256; //定時器裝初值
- TR0=1;
- }
- /*void init() //定時器、計數器設置函數
- {
- TMOD=0x11; //指定定時/計數器的工作方式為3
- TH0=0; //定時器T0的高四位=0
- TL0=0; //定時器T0的低四位=0
- EA=1; //系統允許有開放的中斷
- ET0=1; //允許T0中斷
- TR0=1; //開啟中斷,啟動定時器
- }*/
- /***************主函數********************/
- void main()
- {
- lcd_init(); //調用液晶屏初始化子函數
- ds1302_init(); //調用DS1302時鐘的初始化子函數
- intrupt();
- // system_Ini();
- // led=0; //打開LCD的背光電源
- // buzzer=0; //蜂鳴器長響一次
- // delay(80);
- // buzzer=1;
- while(1) //無限循環下面的語句:
- {
-
- keyscan(); //調用鍵盤掃描子函數
-
- }
- }
- void timer0() interrupt 1 //取得并顯示日歷和時間
- {
-
- Init18b20();
- system_Ini();
- GetTemp(); //溫度傳感器DS18b2初始化子函數,在頭文件中
- flag1=Temperature;
- // flag=ReadTemperature(); //將18b2頭文件運行返回的函數結果送到變量flag中,用于顯示
- //讀取秒時分周日月年七個數據(DS1302的讀寄存器與寫寄存器不一樣):
- miao = BCD_Decimal(read_1302(0x81));
- fen= BCD_Decimal(read_1302(0x83));
- shi = BCD_Decimal(read_1302(0x85));
- ri = BCD_Decimal(read_1302(0x87));
- yue= BCD_Decimal(read_1302(0x89));
- nian=BCD_Decimal(read_1302(0x8d));
- week=BCD_Decimal(read_1302(0x8b));
- //顯示溫度、秒、時、分數據:
-
- write_temp(12,flag1);//顯示溫度,從第二行第12個字符后開始顯示
- write_sfm(8,miao);//秒,從第二行第8個字后開始顯示(調用時分秒顯示子函數)
- write_sfm(5,fen);//分,從第二行第5個字符后開始顯示
- write_sfm(2,shi);//小時,從第二行第2個字符后開始顯示
-
- //顯示日、月、年數據:
- write_nyr(9,ri);//日期,從第二行第9個字符后開始顯示
- write_nyr(6,yue);//月份,從第二行第6個字符后開始顯示
- write_nyr(3,nian);//年,從第二行第3個字符后開始顯示
- write_week(week);
- }
復制代碼
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