基于51单片机的万年历，用到了单片机独立键盘、数码管、LED灯模块实现。
想要简单还是DS1302好用。
1 /**************************************************
2
3 作者：纟彖氵戋 博客：http://www.cnblogs.com/yllinux/
4
5 时间：2017年6月7日
6
7 目标：利用单片机独立键盘、数码管、LED灯模块实现万年历（算法实现）
8
9 ***************************************************/
10 #include <reg52.h>
11 #define uchar unsigned char
12 #define uint unsigned int
13
14 uchar a[] = { 0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x80 }; //字形码表0~9和.
15 uchar b[] = { 0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f,0xff }; //数码管位码表1~8和0
16 uchar c[] = { 0x3f,0xf3,0xcf };
17 uint year = 2100;
18 uchar month = 2, day = 14;
19 uchar hour = 8, minute = 40, second = 0;
20 uchar count; //时钟计数
21 uchar n = 1; //年月日调位指示
22 uchar j = 1; //时分秒调位指示
23
24 sbit Key1 = P3 ^ 0; //计时停止
25 sbit Key2 = P3 ^ 1; //调位
26 sbit Key3 = P3 ^ 2; //加一
27 sbit Key4 = P3 ^ 3; //切换
28 sbit LED1 = P1 ^ 0; //可删此灯，有冲突
29 sbit we = P2 ^ 7;
30 sbit du = P2 ^ 6;
31
32 void Delayms(uint z)
33 {
34 uint x, y;
35 for (x = 0; x < z; x++)
36 for (y = 0; y < 114; y++);
37 }
38
39 //时分秒显示函数
40 void Dispaly1(uchar hour, uchar minute, uchar second)
41 {
42 //数码管1
43 P0 = b[8];
44 we = 1;
45 we = 0;
46 P0 = a[hour / 10];
47 du = 1;
48 du = 0;
49 P0 = b[0];
50 we = 1;
51 we = 0;
52 Delayms(1);
53 //数码管2
54 P0 = b[8];
55 we = 1;
56 we = 0;
57 P0 = a[hour % 10];
58 du = 1;
59 du = 0;
60 P0 = b[1];
61 we = 1;
62 we = 0;
63 Delayms(1);
64 //数码管2小数点
65 P0 = b[8];
66 we = 1;
67 we = 0;
68 P0 = a[10];
69 du = 1;
70 du = 0;
71 P0 = b[1];
72 we = 1;
73 we = 0;
74 Delayms(1);
75 //数码管3
76 P0 = b[8];
77 we = 1;
78 we = 0;
79 P0 = a[minute / 10];
80 du = 1;
81 du = 0;
82 P0 = b[2];
83 we = 1;
84 we = 0;
85 Delayms(1);
86 //数码管4
87 P0 = b[8];
88 we = 1;
89 we = 0;
90 P0 = a[minute % 10];
91 du = 1;
92 du = 0;
93 P0 = b[3];
94 we = 1;
95 we = 0;
96 Delayms(1);
97 //数码管4小数点
98 P0 = b[8];
99 we = 1;
100 we = 0;
101 P0 = a[10];
102 du = 1;
103 du = 0;
104 P0 = b[3];
105 we = 1;
106 we = 0;
107 Delayms(1);
108 //数码管5
109 P0 = b[8];
110 we = 1;
111 we = 0;
112 P0 = a[second / 10];
113 du = 1;
114 du = 0;
115 P0 = b[4];
116 we = 1;
117 we = 0;
118 Delayms(1);
119 //数码管6
120 P0 = b[8];
121 we = 1;
122 we = 0;
123 P0 = a[second % 10];
124 du = 1;
125 du = 0;
126 P0 = b[5];
127 we = 1;
128 we = 0;
129 Delayms(1);
130 }
131
132
133 //年月日显示函数
134 void Dispaly2(uint year, uchar month, uchar day)
135 {
136 //数码管1
137 P0 = b[8];
138 we = 1;
139 we = 0;
140 P0 = a[year / 1000];
141 du = 1;
142 du = 0;
143 P0 = b[0];
144 we = 1;
145 we = 0;
146 Delayms(1);
147
148 //数码管2
149 P0 = b[8];
150 we = 1;
151 we = 0;
152 P0 = a[(year % 1000) / 100];
153 du = 1;
154 du = 0;
155 P0 = b[1];
156 we = 1;
157 we = 0;
158 Delayms(1);
159
160 //数码管3
161 P0 = b[8];
162 we = 1;
163 we = 0;
164 P0 = a[(year % 100) / 10];
165 du = 1;
166 du = 0;
167 P0 = b[2];
168 we = 1;
169 we = 0;
170 Delayms(1);
171
172 //数码管4
173 P0 = b[8];
174 we = 1;
175 we = 0;
176 P0 = a[year % 10];
177 du = 1;
178 du = 0;
179 P0 = b[3];
180 we = 1;
181 we = 0;
182 Delayms(1);
183
184 //数码管4小数点
185 P0 = b[8];
186 we = 1;
187 we = 0;
188 P0 = a[10];
189 du = 1;
190 du = 0;
191 P0 = b[3];
192 we = 1;
193 we = 0;
194 Delayms(1);
195
196 //数码管5
197 P0 = b[8];
198 we = 1;
199 we = 0;
200 P0 = a[month / 10];
201 du = 1;
202 du = 0;
203 P0 = b[4];
204 we = 1;
205 we = 0;
206 Delayms(1);
207
208 //数码管6
209 P0 = b[8];
210 we = 1;
211 we = 0;
212 P0 = a[month % 10];
213 du = 1;
214 du = 0;
215 P0 = b[5];
216 we = 1;
217 we = 0;
218 Delayms(1);
219 //数码管6小数点
220 P0 = b[8];
221 we = 1;
222 we = 0;
223 P0 = a[10];
224 du = 1;
225 du = 0;
226 P0 = b[5];
227 we = 1;
228 we = 0;
229 Delayms(1);
230 //数码管7
231 P0 = b[8];
232 we = 1;
233 we = 0;
234 P0 = a[day / 10];
235 du = 1;
236 du = 0;
237 P0 = b[6];
238 we = 1;
239 we = 0;
240 Delayms(1);
241 //数码管8
242 P0 = b[8];
243 we = 1;
244 we = 0;
245 P0 = a[day % 10];
246 du = 1;
247 du = 0;
248 P0 = b[7];
249 we = 1;
250 we = 0;
251 Delayms(1);
252 }
253
254 void Keyscan1()
255 {
256 static uchar i = 0;
257 if (Key1 == 0)
258 {
259 Delayms(5); //消抖
260 if (Key1 == 0)
261 while (!Key1); //等待按键弹起
262 i++;
263 }
264 if (i % 2 == 1)
265 {
266 LED1 = 0;
267 TR0 = 0;
268 }
269 if (i % 2 == 0)
270 {
271 LED1 = 1;
272 TR0 = 1;
273 }
274 if (Key2 == 0)
275 {
276 Delayms(5);
277 if (Key2 == 0)
278 while (!Key2);
279 j++;
280 if (j == 3)
281 j = 0;
282 }
283 if (j % 3 == 1)
284 {
285 if (Key3 == 0)
286 {
287 Delayms(5);
288 if (Key3 == 0)
289 while (!Key3);
290 second++;
291 if (second == 60)
292 second = 0;
293 }
294 }
295 if (j % 3 == 2)
296 {
297 if (Key3 == 0)
298 {
299 Delayms(5);
300 if (Key3 == 0)
301 while (!Key3);
302 minute++;
303 if (minute == 60)
304 minute = 0;
305 }
306 }
307 if (j % 3 == 0)
308 {
309 if (Key3 == 0)
310 {
311 Delayms(5);
312 if (Key3 == 0)
313 while (!Key3);
314 hour++;
315 if (hour == 24)
316 hour = 0;
317 }
318 }
319 }
320
321 void Keyscan2()
322 {
323 static uchar m = 0;
324 if (Key1 == 0)
325 {
326 Delayms(5);
327 if (Key1 == 0)
328 while (!Key3);
329 m++;
330 if (m == 3)
331 m = 0;
332 }
333 if (m % 2 == 1)
334 {
335 LED1 = 0;
336 TR0 = 0;
337 }
338 if (m % 2 == 0)
339 {
340 LED1 = 1;
341 TR0 = 1;
342 }
343 if (Key2 == 0)
344 {
345 Delayms(5);
346 if (Key2 == 0)
347 while (!Key2);
348 n++;
349 }
350 if (n % 3 == 1)
351 {
352 if (Key3 == 0)
353 {
354 Delayms(5);
355 if (Key3 == 0)
356 while (!Key3);
357 day++;
358 if (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)) //是闰年
359 {
360 if (month == 12 || month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10)
361 {
362 if (day == 32)
363 {
364 day = 0;
365 }
366 }
367 if ( month == 4 || month == 6 || month == 9 || month == 11 )
368 {
369 if (day == 31)
370 {
371 day = 0;
372 }
373 }
374 if (month == 2)
375 {
376 if (day == 29)
377 {
378 day = 0;
379 }
380 }
381 }
382 else //不是闰年
383 {
384 if (month == 12 || month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10)
385 {
386 if (day == 32)
387 {
388 day = 0;
389 }
390 }
391 if ( month == 4 || month == 6 || month == 9 || month == 11 )
392 {
393 if (day == 31)
394 {
395 day = 0;
396 }
397 }
398 if (month == 2)
399 {
400 if (day == 30)
401 {
402 day = 0;
403 }
404 }
405 }
406
407 }
408 }
409 if (n % 3 == 2)
410 {
411 if (Key3 == 0)
412 {
413 Delayms(5);
414 if (Key3 == 0)
415 while (!Key3);
416 month++;
417 if (month == 12)
418 month = 0;
419 }
420 }
421 if (n % 3 == 0)
422 {
423 if (Key3 == 0)
424 {
425 Delayms(5);
426 if (Key3 == 0)
427 while (!Key3);
428 year++;
429 if (year == 99)
430 year = 0;
431 }
432 }
433
434 }
435
436 void main()
437 {
438 TMOD = 0x01;
439 TH0 = 0x4c;
440 //TH0 = (65536 - 10000) / 256;
441 TL0 = 0x00;
442 //TL0 = (65536 - 10000) % 256;
443 EA = 1;
444 ET0 = 1;
445 TR0 = 1;
446 while (1)
447 {
448 static uchar h = 0;
449 if (Key4 == 0)
450 {
451 Delayms(5);
452 if (Key4 == 0)
453 while (!Key4);
454 h++;
455 }
456 if (h % 2 == 1) //按Key4奇次数显示年月日
457 {
458 P1 = c[n % 3]; //年月日调位判断灯
459 Dispaly2(year, month, day);
460 Keyscan2();
461 }
462 if (h % 2 == 0) //按Key4偶次数显示时分秒
463 {
464 P1 = c[j % 3]; //时分秒调位判断灯
465 Dispaly1(hour, minute, second);
466 Keyscan1();
467 }
468 }
469 }
470
471 void time0_int(void) interrupt 1
472 {
473 //TH0 = (65536 - 10000) / 256;
474 //TL0 = (65536 - 10000) % 256;
475 TH0 = 0x4c; //公式：定时时间t = (2^16 - T0初值) * 振荡周期 * 12 （振荡周期 * 12 即机器周期）
476 TL0 = 0x00; //T0 = 2^16 - t * 11059200 / 12 （此定时时间为 50ms， T1 = 19456 = 0x4c00）
477 count++;
478 if (count == 20)
479 {
480 count = 0;
481 second++;
482 if (second == 60)
483 {
484 second = 0;
485 minute++;
486 if (minute == 60)
487 {
488 minute = 0;
489 hour++;
490 if (hour == 24)
491 {
492 hour = 0;
493 day++;
494 if (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)) //是闰年
495 {
496 if (month == 12 || month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10)
497 {
498 if (day == 31)
499 {
500 day = 0;
501 month++;
502 if (month == 12)
503 {
504 month = 1;
505 year++;
506 if (year == 99)
507 {
508 year = 0;
509 }
510 }
511 }
512 }
513 if ( month == 4 || month == 6 || month == 9 || month == 11 )
514 {
515 if (day == 30)
516 {
517 day = 0;
518 month++;
519 }
520 }
521 if (month == 2)
522 {
523 if (day == 28)
524 {
525 day = 0;
526 month++;
527 }
528 }
529 }
530 else //不是闰年
531 {
532 if (month == 12 || month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10)
533 {
534 if (day == 31)
535 {
536 day = 0;
537 month++;
538 if (month == 12)
539 {
540 month = 1;
541 year++;
542 if (year == 99)
543 {
544 year = 0;
545 }
546 }
547 }
548 }
549 if ( month == 4 || month == 6 || month == 9 || month == 11 )
550 {
551 if (day == 30)
552 {
553 day = 0;
554 month++;
555 }
556 }
557 if (month == 2)
558 {
559 if (day == 29)
560 {
561 day = 0;
562 month++;
563 }
564 }
565
566 }
567 }
568 }
569 }
570 }
571 }
--
--
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参考：
http://www.cnblogs.com/LXSYD-C/p/6364888.html
如有错误还请指出，如有侵权还请告知，如需转载请注明出处！
本人博客：http://www.cnblogs.com/yllinux/
时间： 2024-08-02 15:14:31