20X7微型点阵屏，可切换字体。

oufuqiang

20X7微型点阵屏，可切换字体。 595控制的。

http://v.youku.com/v_show/id_XMzc5NDMyNDI0.html

1. 
   
2. #include <reg52.h>
   
3. 
   
4. sbit scl = P1^0;
   
5. sbit sda = P1^1;
   
6. sbit upd = P1^2;
   
7. sbit dpy = P1^7;
   
8. 
   
9. sbit key1 = P2^0;
   
10. sbit key2 = P2^1;
    
11. sbit key3 = P2^2;
    
12. sbit key4 = P2^4;
    
13. sbit key5 = P2^5;
    
14. 
    
15. unsigned char line,c1,c2,c3,c4;
    
16. unsigned char code scantab[5]={0x02,0x04,0x08,0x10,0x20};
    
17. bit charface,dot;
    
18. unsigned char code numdot1[]={
    
19. 0x00,0x60,0xFA,0x60,0x00,0x08,0x70,0x08,0x70,0x00,0x28,0x7C,0x28,0x7C,0x28,0x20,
    
20. 0x54,0xFE,0x54,0x08,0x64,0x68,0x10,0x2C,0x4C,0x1C,0x62,0xBA,0x64,0x3A,0x00,0x02,
    
21. 0x0C,0x00,0x00,0x00,0x38,0x44,0x82,0x00,0x82,0x44,0x38,0x00,0x00,0x48,0x30,0xFC,
    
22. 0x30,0x48,0x00,0x10,0x7C,0x10,0x00,0x00,0x02,0x0C,0x00,0x00,0x00,0x08,0x08,0x08,
    
23. 0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x02,0x1C,0x60,0x80,0x00,0x7C,0x92,0xA2,0x7C,
    
24. 0x00,0x42,0xFE,0x02,0x00,0x00,0x66,0x8A,0x92,0x62,0x00,0x44,0x92,0x92,0x6C,0x00,
    
25. 0x38,0x4A,0xFE,0x0A,0x00,0xE4,0x92,0x92,0x8C,0x00,0x7C,0x92,0x92,0x0C,0x00,0xC0,
    
26. 0x9E,0xA0,0xC0,0x00,0x6C,0x92,0x92,0x6C,0x00,0x60,0x92,0x92,0x7C,0x00,0x00,0x44,
    
27. 0x00,0x00,0x00,0x02,0x4C,0x00,0x00,0x10,0x28,0x44,0x82,0x00,0x00,0x24,0x24,0x24,
    
28. 0x24,0x00,0x82,0x44,0x28,0x10,0x00,0x60,0x8A,0x90,0x60,0x7C,0x82,0x9A,0xAA,0x7A,
    
29. 0x00,0x3E,0xC8,0x78,0x0E,0x00,0x82,0xFE,0x92,0x6C,0x00,0x7C,0x82,0x82,0x44,0x00,
    
30. 0x82,0xFE,0x82,0x7C,0x00,0xFE,0x92,0x92,0x82,0x00,0xFE,0x90,0x90,0x80,0x00,0x7C,
    
31. 0x82,0x8A,0x4C,0x00,0xFE,0x10,0x10,0xFE,0x00,0x82,0xFE,0x82,0x00,0x00,0x06,0x82,
    
32. 0xFC,0x80,0x00,0xFE,0x10,0x28,0x44,0x00,0xFE,0x02,0x02,0x02,0xFE,0xF0,0x0E,0xF0,
    
33. 0xFE,0xFE,0x20,0x10,0x08,0xFE,0x00,0x7C,0x82,0x82,0x7C,0x00,0xFE,0x88,0x88,0x70,
    
34. 0x00,0x7C,0x82,0x84,0x7A,0x00,0xFE,0x90,0x98,0x66,0x00,0x64,0x92,0x92,0x4C,0x80,
    
35. 0x80,0xFE,0x80,0x80,0x00,0xFC,0x02,0x02,0xFC,0x00,0xF8,0x06,0x1C,0xE0,0xE0,0x1E,
    
36. 0xF0,0x1E,0xE0,0x82,0x6C,0x10,0x6C,0x82,0x80,0xE2,0x1E,0xE2,0x80,0x00,0x00,0x8E,
    
37. 0x92,0xE2};
    
38. unsigned char code numdot2[]={
    
39. 0x00,0x60,0xFA,0x60,0x00,0x08,0x70,0x08,0x70,0x00,0x28,0x7C,0x28,0x7C,0x28,0x20,
    
40. 0x54,0xFE,0x54,0x08,0x64,0x68,0x10,0x2C,0x4C,0x1C,0x62,0xBA,0x64,0x3A,0x00,0x02,
    
41. 0x0C,0x00,0x00,0x00,0x38,0x44,0x82,0x00,0x82,0x44,0x38,0x00,0x00,0x48,0x30,0xFC,
    
42. 0x30,0x48,0x00,0x10,0x7C,0x10,0x00,0x00,0x02,0x0C,0x00,0x00,0x00,0x08,0x08,0x08,
    
43. 0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x02,0x1C,0x60,0x80,0x00,0xFE,0x82,0x82,0xFE,
    
44. 0x00,0x00,0x00,0x00,0xFE,0x00,0x9E,0x92,0x92,0xF2,0x00,0x92,0x92,0x92,0xFE,0x00,
    
45. 0xF0,0x10,0x10,0xFE,0x00,0xF2,0x92,0x92,0x9E,0x00,0xFE,0x92,0x92,0x9E,0x00,0xE0,
    
46. 0x80,0x80,0xFE,0x00,0xFE,0x92,0x92,0xFE,0x00,0xF2,0x92,0x92,0xFE,0x00,0x00,0x44,
    
47. 0x00,0x00,0x00,0x02,0x4C,0x00,0x00,0x10,0x28,0x44,0x82,0x00,0x00,0x24,0x24,0x24,
    
48. 0x24,0x00,0x82,0x44,0x28,0x10,0x00,0x60,0x8A,0x90,0x60,0x7C,0x82,0x9A,0xAA,0x7A,
    
49. 0x00,0x3E,0xC8,0x78,0x0E,0x00,0x82,0xFE,0x92,0x6C,0x00,0x7C,0x82,0x82,0x44,0x00,
    
50. 0x82,0xFE,0x82,0x7C,0x00,0xFE,0x92,0x92,0x82,0x00,0xFE,0x90,0x90,0x80,0x00,0x7C,
    
51. 0x82,0x8A,0x4C,0x00,0xFE,0x10,0x10,0xFE,0x00,0x82,0xFE,0x82,0x00,0x00,0x06,0x82,
    
52. 0xFC,0x80,0x00,0xFE,0x10,0x28,0x44,0x00,0xFE,0x02,0x02,0x02,0xFE,0xF0,0x0E,0xF0,
    
53. 0xFE,0xFE,0x20,0x10,0x08,0xFE,0x00,0x7C,0x82,0x82,0x7C,0x00,0xFE,0x88,0x88,0x70,
    
54. 0x00,0x7C,0x82,0x84,0x7A,0x00,0xFE,0x90,0x98,0x66,0x00,0x64,0x92,0x92,0x4C,0x80,
    
55. 0x80,0xFE,0x80,0x80,0x00,0xFC,0x02,0x02,0xFC,0x00,0xF8,0x06,0x1C,0xE0,0xE0,0x1E,
    
56. 0xF0,0x1E,0xE0,0x82,0x6C,0x10,0x6C,0x82,0x80,0xE2,0x1E,0xE2,0x80,0x00,0x00,0x8E,
    
57. 0x92,0xE2};
    
58. 
    
59. //void yanshi(unsigned int time)
    
60. // {
    
61. // while(--time);
    
62. // }
    
63. void send595(unsigned char dat)
    
64.   {
    
65.   unsigned char i;
    
66.   i=8;
    
67.   do{
    
68.         sda=dat&0x01;
    
69.         scl=1;
    
70.         scl=0;
    
71.         dat=dat>>1;
    
72.         }while(--i);
    
73.   }
    
74. void scandot(void)
    
75.   {
    
76.   if(charface)
    
77.     {
    
78.         send595(numdot1[c1*5+line]);
    
79.         send595(numdot1[c2*5+line]);
    
80.         send595(numdot1[c3*5+line]|dot);
    
81.         send595(numdot1[c4*5+line]);
    
82.         }
    
83.   else
    
84.     {
    
85.         send595(numdot2[c1*5+line]);
    
86.         send595(numdot2[c2*5+line]);
    
87.         send595(numdot2[c3*5+line]|dot);
    
88.         send595(numdot2[c4*5+line]);
    
89.         }
    
90.   send595(scantab[line]);
    
91.   upd=1;
    
92.   upd=0;
    
93.   line++;
    
94.   if(line>=5)
    
95.     {
    
96.     line=0;
    
97.     }
    
98.   }
    
99. void main(void)
    
100. {
     
101.   TMOD=0X01;
     
102.   TR0=1;
     
103.   EA=1;
     
104.   ET0=1;
     
105.   scl=sda=upd=0;
     
106.   c1=c2=c3=c4=15;
     
107.   send595(0xFF);
     
108.   send595(0xFF);
     
109.   send595(0xFF);
     
110.   send595(0xFF);
     
111.   send595(0xFF);
     
112.   upd=1;
     
113.   upd=0;
     
114.   while(key5);
     
115. while(1)
     
116.   {
     
117.   scandot();
     
118.   if(key1==0)
     
119.     {
     
120.         c4++;
     
121.         if(c4>=25){c4=15;}
     
122.         while(key1==0)
     
123.           {
     
124.           scandot();
     
125.           }
     
126.     }
     
127.   if(key2==0)
     
128.     {
     
129.         c3++;
     
130.         if(c3>=25){c3=15;}
     
131.         while(key2==0)
     
132.           {
     
133.           scandot();
     
134.           }
     
135.     }
     
136.   if(key3==0)
     
137.     {
     
138.         c2++;
     
139.         if(c2>=25){c2=15;}
     
140.         while(key3==0)
     
141.           {
     
142.           scandot();
     
143.           }
     
144.     }
     
145.   if(key4==0)
     
146.     {
     
147.         c1++;
     
148.         if(c1>=25){c1=15;}
     
149.         while(key4==0)
     
150.           {
     
151.           scandot();
     
152.           }
     
153.     }
     
154.   if(key5==0)
     
155.     {
     
156.         charface=!charface;
     
157.         while(key5==0)
     
158.           {
     
159.           scandot();
     
160.           }
     
161.         }
     
162.   }
     
163. }
     
164. 
     
165. void timer0(void) interrupt 1
     
166. {
     
167. static count,sec;
     
168. TH0=(65536-49990)/256;
     
169. TL0=(65536-49990)%256;
     
170. count++;
     
171. if(count>=40)
     
172.   {
     
173.   count=0;
     
174.   dot=!dot;
     
175.   sec++;
     
176.   if(sec>=60)
     
177.     {
     
178.         sec=0;
     
179.         c1++;
     
180.         if(c1>=25)
     
181.           {
     
182.           c1=15;
     
183.           c2++;
     
184.           if(c2>=21)
     
185.             {
     
186.                 c2=15;
     
187.                 c3++;
     
188.                 if(c3>=25)
     
189.                   {
     
190.                   c3=15;
     
191.                   c4++;
     
192.                   if(c4>=21)
     
193.                     {
     
194.                         c1=c2=c3=c4=15;
     
195.                         }
     
196.                   }
     
197.                 }
     
198.           }
     
199.         }
     
200.   }
     
201. }
     

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xfdr

不错，谢谢楼主分享，能不能把SER全部接在一起，再用上片选

cu_ice

不错不错，这种小点阵貌似我公司有，有空做来玩玩