标题: 基于单片机的16路抢答器仿真+代码 [打印本页]

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作者: 日了狗    时间: 2017-9-8 21:08
标题: 基于单片机的16路抢答器仿真+代码
仿真原理图如下（proteus仿真工程文件可到本帖附件中下载）



单片机源程序如下:

1. #include <reg52.h>
   
2. #define uchar unsigned char
   
3. #define uint unsigned int
   
4. uchar code table[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x84};
   
5. uchar code table0[]={0xf7,0xfe,0xfd,0xfb};
   
6. unsigned char code table2[]={0xef,0xdf,0xbf,0x7f};
   
7. uchar display[]={0,0,0,0};
   
8. void sw1();
   
9. void sw2();
   
10. void sw3();
    
11. void sw4();
    
12. void xianshi();
    
13. void init();
    
14. uchar temp,num2,x,x1,x2,a,count;
    
15. int num,num1;
    
16. uchar key;
    
17. uchar i,j;
    
18. sbit k1=P1^0;
    
19. sbit k2=P1^1;
    
20. sbit k3=P1^2;
    
21. sbit k4=P1^3;
    
22. sbit sp=P1^4;
    
23. sbit l1=P1^5;
    
24. sbit l2=P1^6;
    
25. sbit P3_4=P3^4;
    
26. sbit P3_5=P3^5;
    
27. sbit P3_6=P3^6;
    
28. sbit P3_7=P3^7;
    
29. void delay(uchar z)
    
30. {
    
31. uchar x,y;
    
32. for(x=z;x>0;x--)
    
33. for(y=110;y>0;y--);
    
34. }
    
35. void init()
    
36. {
    
37. a=0;
    
38. TMOD=0x01;
    
39. TH0=(65536-10000)/256;
    
40. TL0=(65536-10000)%256;
    
41. EA=1;
    
42. ET0=1;
    
43. if(k1==0)
    
44. {
    
45. delay(5);
    
46. if(k1==0)
    
47. {
    
48. num++;
    
49. if(num==99)
    
50. {
    
51. num=0;
    
52. }
    
53. num2=num;
    
54. while(k1==0);
    
55. }
    
56. }
    
57. if(k2==0)
    
58. {
    
59. delay(5);
    
60. if(k2==0)
    
61. {
    
62. num--;
    
63. if(num==-1)
    
64. {
    
65. num=99;
    
66. }
    
67. num2=num;
    
68. while(k2==0);
    
69. }
    
70. }
    
71. if(k3==0)
    
72. {
    
73. delay(5);
    
74. if(k3==0)
    
75. {
    
76. x++;
    
77. if(x==2)
    
78. {
    
79. x=0;
    
80. }
    
81. while(k3==0);
    
82. }
    
83. }
    
84. }
    
85. void keyboad()
    
86. {
    
87. while(1)
    
88. {
    
89. P3=0xff;
    
90. P3_4=0;
    
91. temp=P3;
    
92. temp=temp & 0x0f;
    
93. if (temp!=0x0f)
    
94. {
    
95. delay(5);
    
96. temp=P3;
    
97. temp=temp & 0x0f;
    
98. if (temp!=0x0f)
    
99. {
    
100. temp=P3;
     
101. temp=temp & 0x0f;
     
102. switch(temp)
     
103. {
     
104. case 0x0e:
     
105. {delay(5);num1=4;l2=0;xianshi();} break;
     
106. case 0x0d:
     
107. {delay(5);num1=3;l2=0;xianshi();}break;
     
108. case 0x0b:
     
109. {delay(5);num1=2;l2=0;xianshi();}break;
     
110. case 0x07:
     
111. {delay(5);num1=1;l2=0;xianshi();} break;
     
112. }
     
113. }
     
114. }
     
115. P3=0xff;
     
116. P3_5=0;
     
117. temp=P3;
     
118. temp=temp & 0x0f;
     
119. if (temp!=0x0f)
     
120. {
     
121. delay(5);
     
122. temp=P3;
     
123. temp=temp & 0x0f;
     
124. if (temp!=0x0f)
     
125. {
     
126. temp=P3;
     
127. temp=temp & 0x0f;
     
128. switch(temp)
     
129. {
     
130. case 0x0e:
     
131. {delay(5);num1=8;l2=0;xianshi();} break;
     
132. case 0x0d:
     
133. {delay(5);num1=7;l2=0;xianshi();} break;
     
134. case 0x0b:
     
135. {delay(5);num1=6;l2=0;xianshi();} break;
     
136. case 0x07:
     
137. {delay(5);num1=5;l2=0;xianshi();} break;
     
138. }
     
139. }
     
140. }
     
141. P3=0xff;
     
142. P3_6=0;
     
143. temp=P3;
     
144. temp=temp & 0x0f;
     
145. if (temp!=0x0f)
     
146. {
     
147. delay(5);
     
148. temp=P3;
     
149. temp=temp & 0x0f;
     
150. if (temp!=0x0f)
     
151. {
     
152. temp=P3;
     
153. temp=temp & 0x0f;
     
154. switch(temp)
     
155. {
     
156. case 0x0e:
     
157. {delay(5);num1=12;l2=0;xianshi();} break;
     
158. case 0x0d:
     
159. {delay(5);num1=11;l2=0;xianshi();} break;
     
160. case 0x0b:
     
161. {delay(5);num1=10;l2=0;xianshi();} break;
     
162. case 0x07:
     
163. {delay(5);num1=9;l2=0;xianshi();} break;
     
164. }
     
165. }
     
166. }
     
167. P3=0xff;
     
168. P3_7=0;
     
169. temp=P3;
     
170. temp=temp & 0x0f;
     
171. if (temp!=0x0f)
     
172. {
     
173. delay(5);
     
174. temp=P3;
     
175. temp=temp & 0x0f;
     
176. if (temp!=0x0f)
     
177. {
     
178. temp=P3;
     
179. temp=temp & 0x0f;
     
180. switch(temp)
     
181. {
     
182. case 0x0e:
     
183. {delay(5);num1=16;l2=0;xianshi();} break;
     
184. case 0x0d:
     
185. {delay(5);num1=15;l2=0;xianshi();} break;
     
186. case 0x0b:
     
187. {delay(5);num1=14;l2=0;xianshi();} break;
     
188. case 0x07:
     
189. {delay(5);num1=13;l2=0;xianshi();} break;
     
190. }
     
191. temp=P3;
     
192. P0=table[key];
     
193. }
     
194. }
     
195. }
     
196. }
     
197. void xianshi()
     
198. {
     
199. TR0=0;
     
200. num=0;
     
201. sp=1;
     
202. delay(100);
     
203. sp=0;
     
204. while(1)
     
205. {
     
206. for(a=0;a<4;a++)
     
207. {
     
208. delay(5);
     
209. P2=table0[a];
     
210. P0=table[display[a]];
     
211. }
     
212. display[0]=num/10;
     
213. display[1]=num%10;
     
214. display[2]=num1/10;
     
215. display[3]=num1%10;
     
216. if(k4==0)
     
217. {
     
218. num=num2;
     
219. num1=0;
     
220. TR0=1;
     
221. l1=1;
     
222. l2=1;
     
223. return;
     
224. }
     
225. }
     
226. }
     
227. void main()
     
228. {
     
229. l1=1;
     
230. l2=1;
     
231. sp=0;
     
232. x=0;
     
233. num=num2=30;
     
234. while(1)
     
235. {
     
236. if(x==1)
     
237. {
     
238. delay(5);
     
239. TR0=1;
     
240. while(1)
     
241. {
     
242. keyboad();
     
243. if(k4==0)
     
244. {
     
245. l1=1;
     
246. l2=1;
     
247. delay(5);
     
248. num=num2;
     
249. TR0=1;
     
250. }
     
251. }
     
252. }
     
253. else
     
254. {
     
255. for(a=0;a<4;a++)
     
256. {
     
257. delay(5);
     
258. P2=table0[a];
     
259. P0=table[display[a]];
     
260. }
     
261. display[0]=num/10;
     
262. display[1]=num%10;
     
263. display[2]=num1/10;
     
264. display[3]=num1%10;
     
265. init();
     
266. }
     
267. }
     
268. }
     
269. void time0() interrupt 1
     
270. {
     
271. TH0=(65536-10000)/256;
     
272. TL0=(65536-10000)%256;
     
273. count++;
     
274. if(k4==0)
     
275. {
     
276. num=num2;
     
277. TR0=1;
     
278. num1=0;
     
279. return;
     
280. }
     
281. for(a=0;a<4;a++)
     
282. {
     
283. delay(10);
     
284. P2=table0[a];
     
285. P0=table[display[a]];
     
286. }
     
287. display[0]=num/10;
     
288. display[1]=num%10;
     
289. display[2]=num1/10;
     
290. display[3]=num1%10;
     
291. if(count==100)
     
292. {
     
293. count=0;
     
294. num--;
     
295. if(num<5)
     
296. {
     
297. l1=~l1;
     
298. ……………………
     
299. 
     
300. …………限于本文篇幅 余下代码请从51黑下载附件…………
     

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