1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
| #include<reg52.H>
#include<INTRINS.H>
#define TIME (0X10000-50000)
#define FLAG 0XEF //闹钟标志
//引脚连接图
sbit rst=P3^5;
sbit clk=P3^4;
sbit dat=P3^3;
sbit rs=P1^5;
sbit rw=P1^6;
sbit e=P1^7;
sbit DQ=P1^4;
sbit P3_2=P3^2;
sbit ACC_7=ACC^7;
//全局变量及常量定义
unsigned char i=20,j,time1[16];
unsigned char alarm[2],time2[15],time[3];
unsigned char code Day[]={31,28,31,30,31,30,31,31,30,31,30,31};//12个月的最大日期(非闰年)
//音律表
unsigned int code table1[]={64260,64400,64524,64580,64684,64777,
64820,64898,64968,65030,65058,65110,65157,65178,65217};
//发声部分的延时时间
unsigned char code table2[]={0x82,1,0x81,0xf4,0xd4,0xb4,0xa4,
0x94,0xe2,1,0xe1,0xd4,0xb4,0xc4,0xb4,4,0};
//LCD自建字
unsigned char code tab[]={0x10,0x11,0x12,0x1c,0x1c,0x12,0x11,0x11,
0x08,0x0f,0x12,0x0f,0x0a,0x1f,0x02,0x02,//年
0x0f,0x09,0x0f,0x09,0x0f,0x09,0x11,0x00,//月
0x0f,0x09,0x09,0x0f,0x09,0x09,0x0f,0x00};//日
unsigned char code ditab[16]={0x00,0x01,0x01,0x02,0x03,0x03,0x04,0x04,0x05,0x06,0x06,0x07,0x08,0x08,0x09,0x09};
//闹钟中用的全局变量
unsigned char th1,tl1;
unsigned char temp_data[2]={0x00,0x00}; // 读出温度暂放
bit flag; //18b20存在标志位
/\*\*\*\*\*\*\*\*\*\*\*11微秒延时函数\*\*\*\*\*\*\*\*\*\*/
void delay(unsigned int t)
{
for(;t>0;t--);
}
/\*\*\*\*\*\*\*\*\*\*\*18B20复位函数\*\*\*\*\*\*\*\*\*\*/
void RST18B20(void)
{
unsigned char i;
DQ=1;\_nop\_();\_nop\_();
DQ=0; //
delay(50); // 550us
DQ=1; //
delay(6); // 66us
for(i=0;i<0x30;i++)
{
if(!DQ)
goto d1;
}
flag=0; //清标志位,表示ds1820不存在
DQ=1;
return;
d1: delay(45); //延时500us
flag=1;
DQ=1; //置标志位,表示ds1820存在
}
/\*\*\*\*\*\*\*\*\*\*18B20写命令函数\*\*\*\*\*\*\*\*\*/
//向 1-WIRE 总线上写一个字节
void Write1Byte18B20(unsigned char val)
{
unsigned char i;
for (i=8; i>0; i--) //
{
DQ=1;\_nop\_();\_nop\_();
DQ=0;\_nop\_();\_nop\_();\_nop\_();\_nop\_();\_nop\_();//5us
DQ=val&0x01; //最低位移出
delay(6); //66us
val=val/2; //右移一位
}
DQ=1;
delay(1);
}
/\*\*\*\*\*\*\*\*\*18B20读1个字节函数\*\*\*\*\*\*\*\*/
//从总线上读取一个字节
unsigned char Read1Byte18B20(void)
{
unsigned char i;
unsigned char value=0;
for (i=8;i>0;i--)
{
DQ=1;\_nop\_();\_nop\_();
value>>=1;
DQ=0; //
\_nop\_();\_nop\_();\_nop\_();\_nop\_(); //4us
DQ=1;\_nop\_();\_nop\_();\_nop\_();\_nop\_(); //4us
if(DQ)
value|=0x80;
delay(6); //66us
}
DQ=1;
return(value);
}
/\*\*\*\*\*\*\*\*\*\*\*读出温度函数\*\*\*\*\*\*\*\*\*\*/
void Read18B20()
{
RST18B20(); //总线复位
if(!flag) //判断ds1820是否存在?若ds18b20不存在则返回
return;
//Write1Byte18B20(0xCC); // Skip ROM
//Write1Byte18B20(0x44); // 发转换命令
//delay(70);
Write1Byte18B20(0xCC); //发Skip ROM命令
Write1Byte18B20(0xBE); //发读命令
temp_data[0]=Read1Byte18B20(); //温度低8位
temp_data[1]=Read1Byte18B20(); //温度高8位
RST18B20();
Write1Byte18B20(0xCC); // Skip ROM
Write1Byte18B20(0x44); // 发转换命令
}
/\*\*\*\*\*\*\*\*\*\*\*温度数据处理函数\*\*\*\*\*\*\*\*\*\*/
void DealTempData()
{
unsigned char n=0,m;
if(temp_data[1]>127)//负温度求补码
{
temp_data[1]=(256-temp_data[1]);
temp_data[0]=(256-temp_data[0]);
n=1;
}
time2[13]=ditab[temp_data[0]&0x0f]+'0';
time2[12]='.';
m=((temp_data[0]&0xf0)>>4)|((temp_data[1]&0x0f)<<4);//
if(n)
{
m-=16;
}
time2[9]=m/100+'0';
time2[11]=m%100;
time2[10]=time2[11]/10+'0';
time2[11]=time2[11]%10+'0';
if(time2[9]=='0')//最高位为0时都不显示
{
time2[9]=0x20;
if(n)//负温度时最高位显示"-"
{
time2[9]='-';
}
if(time2[10]=='0')
{
if(n)
{
time2[10]='-';
time2[9]=0x20;
}
else
time2[10]=0x20;
if(time2[11]=='0'&&time2[13]=='0')
time2[11]=time2[12]=0x20;
}
}
}
void delay1ms(unsigned char time) //延时1ms
{
unsigned char i,j;
for(i=0;i<time;i++)
{
for(j=0;j<110;j++);
}
}
//使能1602
void EnableLCD()
{
rs=0;
rw=0;
e=0;
delay1ms(3);
e=1;
}
//写LCD函数
void WriteLCD(unsigned char i)
{
P0=i;
rs=1;
rw=0;
e=0;
delay1ms(2);
e=1;
}
//写LCD内部地址函数
void WriteLCDRAM(unsigned char data \*address,m)
{
unsigned char i,j;
for(i=0;i<m;i++,address++)
{
j=\*address;
WriteLCD(j);
}
}
//LCD显示
void LCDSHOW()
{
P0=0XC; //显示器开、光标关
EnableLCD();
P0=0x80; //写入显示起始地址
EnableLCD();
WriteLCDRAM(time1,16);
P0=0xc1; //写入显示起始地址
EnableLCD();
WriteLCDRAM(time2,15);
}
//自建字函数库
void DesignHZ()
{
unsigned char i;
P0=0x40;
EnableLCD();
for(i=0;i<32;i++)
{
WriteLCD(tab[i]);
delay1ms(2);
}
}
//写DS1302子程序
void WriteDS1302(unsigned char address)
{
unsigned char i;
clk=0;
\_nop\_();
rst=1;
\_nop\_();
for(i=0;i<8;i++)
{
dat=address&1;
\_nop\_();
clk=1;
address>>=1;
clk=0;
}
}
//读DS1302子程序
unsigned char ReadDS1302()
{
unsigned char i,j=0;
for(i=0;i<8;i++)
{
j>>=1;
\_nop\_();
clk=0;
\_nop\_();
if(dat)
j|=0x80;
\_nop\_();
clk=1;
}
return(j);
}
//部分显示数据初始化
void TimeInit()
{
time1[1]=time1[13]=time2[8]=time2[9]=time2[10]=0x20,time2[14]=0;
time1[6]=1,time1[9]=2,time1[12]=3,time1[2]='2',time1[3]='0';
time1[14]='W',time2[2]=time2[5]=':';
WriteDS1302(0xc1);
alarm[0]=ReadDS1302();
rst=0;
WriteDS1302(0xc3);
alarm[1]=ReadDS1302();
rst=0;
WriteDS1302(0xc5);
time1[0]=ReadDS1302();
rst=0;
}
//读取时间
void ReadTime()
{
unsigned char i,m,n;
WriteDS1302(0x8d); //读取年份
m=ReadDS1302();
rst=0;
time1[4]=m/16+0x30;
time1[5]=m%16+0x30;
WriteDS1302(0x8b); //读取星期
m=ReadDS1302();
rst=0;
time1[15]=m+0x30;
for(i=7,n=0x89;i<11;i+=3,n-=2) //读取月份和日期
{
WriteDS1302(n);
m=ReadDS1302();
rst=0;
time1[i]=m/16+0x30;
time1[i+1]=m%16+0x30;
}
for(m=0,i=0,n=0x85;i<7;i+=3,n-=2,m++) //读取时,分,秒
{
WriteDS1302(n);
time[m]=ReadDS1302();
rst=0;
time2[i]=time[m]/16+0x30;
time2[i+1]=time[m]%16+0x30;
}
}
void time0() interrupt 1 using 1
{
i--;
if(i==0)
{
if(j!=0)
j--;
i=20;
}
TH0=TIME/256,TL0=TIME%256;
}
//闹钟部分
void intime1() interrupt 3
{
TH1=th1,TL1=tl1;
P3_2=!P3_2;
}
//显示闹钟设置数据
void showalarm()
{
unsigned char i,j,a,b,n;
ET1=1;
for(j=0;j<6;j++)
{
i=0;
while(1)
{
a=table2[i];
if(a==0)
break;
b=a&0xf;
a>>=4;
if(a==0)
{
TR1=0;
goto D1;
}
a=((--a)<<1)/2;
TH1=th1=table1[a]/256,TL1=tl1=table1[a]%256;
TR1=1;
D1: do
{
b--;
for(n=0;n<3;n++)
{
ReadTime();
LCDSHOW();
P2=0xf7;
if(P2==0xe7)
{
P3_2=0;
delay1ms(100);
P3_2=1;
if(P2==0xe7)
{
TR1=0;
ET1=0;
return;
}
}
}
}while(b!=0);
i++;
}
TR1=0;
}
ET1=0;
}
//根据日期的变动自动调整星期
unsigned char setweek()
{
unsigned char i=5,j,n;
j=(time1[4]&0xf)\*10+(time1[5]&0xf);
n=j/4;
i=i+5\*n;
n=j%4;
if(n==1)
i+=2;
else if(n==2)
i+=3;
else if(n==3)
i+=4;
j=(time1[7]&0xf)\*10+(time1[8]&0xf);
if(j==2)
i+=3;
else if(j==3)
i+=3;
else if(j==4)
i+=6;
else if(j==5)
i+=1;
else if(j==6)
i+=4;
else if(j==7)
i+=6;
else if(j==8)
i+=2;
else if(j==9)
i+=5;
else if(j==11)
i+=3;
else if(j==12)
i+=5;
if(n==0)
if(j>2)
i++;
j=(time1[10]&0xf)\*10+(time1[11]&0xf);
i+=j;
i%=7;
if(i==0)
i=7;
return(i);
}
//设置时间
void settime()
{
unsigned char i=0x85,year,month,day,n;
time2[6]=time2[7]=0x30,time1[14]=time1[15]=0x20;
LCDSHOW();
while(1)
{
P0=0xe; //显示器开、光标开
EnableLCD();
P0=i; //定光标
EnableLCD();
P2=0xf7;
if(P2!=0XF7)
{
delay1ms(10);//延时0.1s去抖动
P3_2=0;
delay1ms(90);
P3_2=1;
if(P2!=0XF7)
{
j=7;
if(P2==0X77)
{ delay1ms(10);//延时0.1s去抖动
P3_2=0;
delay1ms(90);
P3_2=1;
i+=3;
if(i==0x8e)
i=0xc2;
else if(i>0xc5)
i=0x85;
}
else if(P2==0xb7)
{
delay1ms(10);//延时0.1s去抖动
P3_2=0;
delay1ms(90);
P3_2=1;
year=(time1[4]&0xf)\*10+(time1[5]&0xf);
month=(time1[7]&0xf)\*10+(time1[8]&0xf);
day=(time1[10]&0xf)\*10+(time1[11]&0xf);
if(i==0x85)
{
year++;
if(year>99)
year=0;
if((year%4)!=0)
if(month==2&&day==29)
day=28;
while(P2==0XF7);
}
else if(i==0x88)
{
month++;
if(month>12)
month=1;
if(day>Day[month-1])
{
day=Day[month-1];
if(month==2&&(year%4)==0)
day=29;
}
}
else if(i==0x8b)
{
day++;
if(day>Day[month-1])
{
if(month==2&&(year%4)==0)
{
if(day>29)
day=1;
}
if(month!=2)
day=1;
}
}
else if(i==0xc2)
{
n=(time2[0]&0xf)\*10+(time2[1]&0xf);
n++;
if(n>23)
n=0;
time2[0]=n/10+0x30;
time2[1]=n%10+0x30;
}
else
{
n=(time2[3]&0xf)\*10+(time2[4]&0xf);
n++;
if(n>59)
n=0;
time2[3]=n/10+0x30;
time2[4]=n%10+0x30;
}
time1[4]=year/10+0x30;
time1[5]=year%10+0x30;
time1[7]=month/10+0x30;
time1[8]=month%10+0x30;
time1[10]=day/10+0x30;
time1[11]=day%10+0x30;
LCDSHOW();
}
else if(P2==0xd7)
{
delay1ms(10);//延时0.1s去抖动
P3_2=0;
delay1ms(90);
P3_2=1;
WriteDS1302(0x8c);
WriteDS1302((time1[4]&0xf)\*16+(time1[5]&0xf));
rst=0;
WriteDS1302(0x8a);
WriteDS1302(setweek());
rst=0;
for(i=7,n=0x88;i<11;i+=3,n-=2)
{
WriteDS1302(n);
WriteDS1302((time1[i]&0xf)\*16+(time1[i+1]&0xf));
rst=0;
}
for(i=0;i<7;i+=3,n-=2)
{
WriteDS1302(n);
WriteDS1302((time2[i]&0xf)\*16+(time2[i+1]&0xf));
rst=0;
}
TR0=0;
time1[14]='W';
return;
}
else
{
TR0=0;
time1[14]='W';
return;
}
while(P2!=0XF7);
}
}
if(j==0)
{
TR0=0;
time1[14]='W';
return;
}
}
}
//设置闹钟
void setalarm()
{
unsigned char i,n;
for(i=1;i<16;i++)
{
time1[i]=0x20;
}
time2[0]=alarm[0]/16+0x30;
time2[1]=(alarm[0]&0xf)+0x30;
time2[3]=alarm[1]/16+0x30;
time2[4]=(alarm[1]&0xf)+0x30;
time2[6]=time2[7]=0x30;
LCDSHOW();
i=0xc2;
while(1)
{
P0=0xe; //显示器开、光标开
EnableLCD();
P0=i; //定光标
EnableLCD();
P2=0xf7;
if(P2!=0XF7)
{
delay1ms(100); //延时0.1s去抖动
if(P2!=0XF7)
{
j=7;
if(P2==0X77)
{
i+=3;
if(i>0xc5)
i=0xc2;
}
else if(P2==0xb7)
{
if(i==0xc2)
{
n=(time2[0]&0xf)\*10+(time2[1]&0xf);
n++;
if(n>23)
n=0;
time2[0]=n/10+0x30;
time2[1]=n%10+0x30;
}
else
{
n=(time2[3]&0xf)\*10+(time2[4]&0xf);
n++;
if(n>59)
n=0;
time2[3]=n/10+0x30;
time2[4]=n%10+0x30;
}
LCDSHOW();
}
else if(P2==0xd7)
{
WriteDS1302(0xc0);
WriteDS1302((time2[0]&0xf)\*16+(time2[1]&0xf));
rst=0;
WriteDS1302(0xc2);
WriteDS1302((time2[3]&0xf)\*16+(time2[4]&0xf));
rst=0;
time1[0]=FLAG;
WriteDS1302(0xc4);
WriteDS1302(time1[0]);
rst=0;
TR0=0;
TimeInit();
return;
}
else
{
TR0=0;
TimeInit();
return;
}
}
}
if(j==0)
{
TR0=0;
TimeInit();
return;
}
}
}
void main()
{
IE=0X82;
TMOD=0x11;
WriteDS1302(0x8E); //禁止写保护
WriteDS1302(0);
rst=0;
P0=1; //清屏并光标复位
EnableLCD();
P0=0X38; //设置显示模式:8位2行5x7点阵
EnableLCD();
P0=6; //文字不动,光标自动右移
EnableLCD();
DesignHZ(); //自建字
TimeInit();
while(1)
{
ReadTime(); //读取时间
DealTempData(); //处理温度数据
LCDSHOW(); //显示时间
if(time1[0]!=0x20)
if(time[0]==alarm[0])
if(time[1]==alarm[1])
if(time[2]==0)
showalarm();
P2=0xf7;
if((P2&0XF0)!=0XF0)
{
delay1ms(100); //延时0.1s去抖动
if((P2&0XF0)!=0XF0)
{
j=7;
TH0=TIME/256,TL0=TIME%256;
TR0=1;
if(P2==0x77)
{
settime();
}
else if(P2==0XB7)
{
setalarm();
}
else if(P2==0XD7)
{
TR0=0;
if(time1[0]==FLAG)
{time1[0]=0x20;
delay1ms(10);//延时0.1s去抖动
P3_2=0;
delay1ms(90);
P3_2=1;}
else
{time1[0]=FLAG;
delay1ms(10);//延时0.1s去抖动
P3_2=0;
delay1ms(90);
P3_2=1;
delay1ms(10);//延时0.1s去抖动
P3_2=0;
delay1ms(90);
P3_2=1;
delay1ms(10);//延时0.1s去抖动
P3_2=0;
delay1ms(90);
P3_2=1;
}
WriteDS1302(0xc4);
WriteDS1302(time1[0]);
rst=0;
}
}
}
delay1ms(100);
}
}
|
