单片机 51 点阵广告牌.docx
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单片机 51 点阵广告牌.docx
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单片机51点阵广告牌
16*16点阵广告屏
学院:
电子工程与自动化学院
专业:
电子信息科学与技术
姓名:
王定发
学号:
0900840230
指导老师:
黄新老师
目录:
1、背景--------------------------------------------------3
2、方案设计与分析------------------------------------3
背景:
LED显示屏是利用发光二级管点阵模块或像素单元组成的平面式显示屏幕。
它具有发光效率高、使用寿命长、组态灵活、色彩丰富以及对室内外环境适应能力强等优点,并广泛应用与公交车、码头、码头、商店、学校和银行等公共场合的信息发布和广告宣传。
LED显示屏经历了从单色、双色图文显示屏到现在的全彩色显示屏的发展过程,自20世纪80年代开始,LED显示屏的应用里与已经遍布交通、通信、教育、证券、广告宣传的各方面。
目前国内的LED点阵显示屏大部分是单显示屏,其显示内容相对较少,显示花样比较单一,一般在产品出厂时,显示内容就已经写入了显示屏控制系统的ERROM芯片中,当需要更新显示内容时就非常困难,这样使该类型的显示屏适用范围受到了限制。
国内的另一种LED显示屏---可编程型LED显示屏,虽然增加了显示系统的编程能力,显示内容和现实花样都有所增加,但也存在着更换显示内容不变的缺点。
随着设经济的迅速发展,如今的广告牌都存在着显示内容丰富、信息量大、信息更换速度快等特点。
因此传统的LED显示屏控制系统已经越来越不能满足现代广告宣传业的需要。
而利用PC机通信技术控制LED显示屏,则具有显示内容丰富、信息更换灵活等优点。
方案设计与分析:
硬件模块分析:
1、74HC154
管脚图:
真值表:
INPUTS输入
SELECTEDOUTPUT选定输出(L)
G1
G2
D
C
B
A
L
L
L
L
L
L
Y0
L
L
L
L
L
H
Y1
L
L
L
L
H
L
Y2
L
L
L
L
H
H
Y3
L
L
L
H
L
L
Y4
L
L
L
H
L
H
Y5
L
L
L
H
H
L
Y6
L
L
L
H
H
H
Y7
L
L
H
L
L
L
Y8
L
L
H
L
L
H
Y9
L
L
H
L
H
L
Y10
L
L
H
L
H
H
Y11
L
L
H
H
L
L
Y12
L
L
H
H
L
H
Y13
L
L
H
H
H
L
Y14
L
L
H
H
H
H
Y15
X
H
X
X
X
X
NONE
H
X
X
X
X
X
NONE
2、原理图
3、软件:
4、#include
5、#defineucharunsignedchar
6、#defineuintunsignedint
7、#defineBitP3
8、#defineData1P2
9、#defineData2P1
10、#defineTimes3
11、
12、ucharcodetable1[]={
13、//上半屏
14、0x00,0x00,0x3F,0x20,0x20,0x20,0x20,0xA0,//广
15、0x60,0x20,0x20,0x20,0x20,0x60,0x20,0x00,
16、0x00,
17、
18、0x01,0x01,0x05,0x79,0x11,0x11,0x11,0xFF,//¸告
19、0x11,0x11,0x11,0x31,0x11,0x03,0x01,0x00,
20、0x00,
21、
22、0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
23、0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
24、
25、0x02,0x04,0x1F,0xE0,0x02,0x04,0x18,0xF0,//你
26、0x10,0x13,0x10,0x10,0x14,0x18,0x00,0x00,
27、0x00,
28、
29、0x00,0x40,0x50,0x57,0x55,0x55,0x55,0xF5,//喜
30、0x55,0x55,0x55,0x57,0xD0,0x40,0x00,0x00,
31、0x00,
32、
33、0x20,0x2C,0x23,0x20,0x23,0x3C,0x04,0x08,//欢
34、0xF0,0x17,0x10,0x10,0x14,0x18,0x00,0x00,
35、0x00,
36、
37、0x00,0x1F,0x12,0x12,0x12,0x12,0xFF,0x12,//电
38、0x12,0x12,0x12,0x3F,0x10,0x00,0x00,0x00,
39、0x00,
40、
41、0x01,0x01,0x41,0x41,0x41,0x41,0x41,0x47,//子
42、0x45,0x49,0x51,0x61,0x01,0x03,0x01,0x00,
43、0x00,
44、
45、0x00,0x3F,0x20,0x20,0x7F,0x20,0x40,0x5F,//吗
46、0x40,0x40,0x40,0xFF,0x40,0x01,0x00,0x00,
47、0x00,
48、
49、0x00,0x7e,0x42,0x5a,0x5a,0x42,0x7e,0x00,
50、0x00,0x30,0x48,0x44,0x22,0x44,0x48,0x30,
51、0x00,0x00,0x00,
52、
53、0x08,0x44,0x26,0x30,0x01,0x22,0x22,0x26,//流
54、0xAA,0x72,0x22,0x2A,0x66,0x23,0x00,0x00,
55、0x00,
56、
57、0x00,0x04,0x04,0x04,0x04,0x07,0x00,0xFF,//水
58、0x03,0x02,0x04,0x08,0x18,0x00,0x00,0x00,
59、0x00,
60、
61、0x01,0x0E,0x00,0xFF,0x04,0x28,0x20,0x20,//灯
62、0x20,0x20,0x3F,0x20,0x20,0x60,0x20,0x00,
63、0x00,
64、
65、0x00,0xfe,0x00,0x80,0x80,0xfe,0x00,0x14,
66、0x14,0x00,0xfe,0x00,0xf2,0x92,0x9e,0x00,
67、0x00,
68、
69、0x00,0x00,0x7D,0x54,0x54,0x54,0x54,0x57,//星
70、0x54,0x54,0x54,0x54,0xFD,0x40,0x00,0x00,
71、0x00,
72、
73、0x00,0x10,0xFF,0x15,0x15,0x15,0xFF,0x10,//期
74、0x00,0x7F,0x44,0x44,0x44,0xFF,0x40,0x00,
75、0x00,
76、
77、0x04,0x04,0x04,0x04,0x04,0x44,0x34,0x1C,//六
78、0x04,0x04,0x04,0x04,0x04,0x0C,0x04,0x00,
79、0x00,
80、
81、0x20,0x20,0x20,0x20,0x20,0x20,0x3F,0x22,//万
82、0x22,0x22,0x22,0x27,0x22,0x60,0x20,0x00,
83、0x00,
84、
85、0x00,0x04,0x08,0x33,0xE2,0x22,0x22,0x3F,//年
86、0x22,0x22,0x22,0x26,0x62,0x20,0x00,0x00,
87、0x00,
88、
89、0x00,0x00,0x7F,0x42,0x42,0x42,0x42,0x7F,//历
90、0x42,0x42,0x42,0x42,0xC2,0x47,0x02,0x00,
91、0x00,
92、
93、0x4f,0x49,0x79,0x00,0x79,0x49,0x4f,0x00,
94、0xc0,0xc0,0x00,0x7e,0x42,0x42,0x42,0x00,
95、0x00,
96、
97、0x08,0x44,0x26,0x30,0x01,0x00,0x7F,0x49,//温
98、0x49,0x49,0x49,0x49,0xFF,0x40,0x00,0x00,
99、0x00,
100、
101、0x00,0x00,0x3F,0x24,0x24,0x24,0x3F,0xA5,//度
102、0x65,0x25,0x3F,0x24,0x2C,0x64,0x20,0x00,
103、0x00,
104、
105、0x02,0x02,0x42,0x33,0x00,0x02,0x02,0x02,//计
106、0x02,0xFF,0x02,0x02,0x02,0x06,0x02,0x00,
107、0x00,
108、
109、0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
110、0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
111、
112、0x02,0x04,0x1F,0xE0,0x02,0x04,0x18,0xF0,//你
113、0x10,0x13,0x10,0x10,0x14,0x18,0x00,0x00,
114、0x00,
115、
116、0x04,0x44,0x37,0x00,0x20,0x20,0x20,0x21,//还
117、0x27,0x38,0x21,0x20,0x20,0x60,0x20,0x00,
118、0x00,
119、
120、0x10,0x10,0x10,0x10,0x13,0x1C,0xF0,0x10,//在
121、0x10,0x17,0x10,0x11,0x10,0x30,0x10,0x00,
122、0x00,
123、
124、0x02,0x44,0x28,0x10,0x2F,0x64,0x04,0x07,//犹
125、0xFC,0x07,0x44,0x34,0x04,0x0C,0x04,0x00,
126、0x00,
127、
128、0x02,0x42,0x4A,0x47,0x5A,0x63,0x0A,0x1F,//豫
129、0x29,0xCB,0x5D,0x69,0x49,0x1F,0x08,0x00,
130、0x00,
131、
132、0x01,0x02,0x04,0x1F,0xE2,0x02,0x02,0x02,//什
133、0x02,0xFF,0x02,0x02,0x02,0x06,0x02,0x00,
134、0x00,
135、
136、0x00,0x00,0x01,0x02,0x04,0x08,0x30,0xC1,//么
137、0x02,0x0C,0x00,0x00,0x00,0x00,0x00,0x00,
138、0x00,
139、
140、0x00,0x00,
141、0x00,
142、
143、0x02,0x12,0x12,0x12,0xFF,0x12,0x12,0x21,//赶
144、0x21,0x21,0x3F,0x21,0x61,0x23,0x01,0x00,
145、0x00,
146、
147、0x00,0x00,0x7C,0x00,0x00,0xFF,0x02,0x62,//紧
148、0x54,0x48,0x55,0x64,0x42,0x03,0x02,0x00,
149、0x00,
150、
151、0x08,0x08,0x08,0xFF,0x09,0x0A,0x00,0x7F,//报
152、0x41,0x41,0x49,0x45,0xF9,0x40,0x00,0x00,
153、0x00,
154、
155、0x00,0x00,0x00,0x04,0x08,0x39,0xE5,0x22,//名
156、0x22,0x24,0x28,0x30,0x00,0x00,0x00,0x00,
157、0x00,
158、
159、0x04,0x04,0x04,0x14,0x15,0x36,0xDC,0x14,//参
160、0x15,0x56,0x35,0x14,0x04,0x0C,0x04,0x00,
161、0x00,
162、
163、0x08,0x08,0x08,0xFF,0x08,0x08,0x1F,0x08,//加
164、0x00,0x1F,0x10,0x10,0x10,0x3F,0x10,0x00,
165、0x00,
166、
167、0x00,0x7F,0x44,0x44,0x7F,0x04,0x55,0x36,//腾
168、0x1C,0xF4,0x14,0x36,0x55,0x15,0x05,0x00,
169、0x00,
170、
171、0x02,0x42,0x33,0x00,0x04,0x04,0x04,0x05,//达
172、0xFE,0x04,0x04,0x04,0x0C,0x04,0x00,0x00,
173、0x00,
174、
175、0x08,0x08,0x0B,0xFF,0x09,0x28,0x20,0x20,//杯
176、0x21,0x27,0x38,0x21,0x20,0x60,0x20,0x00,
177、0x00,
178、
179、0x00,0x3F,0x20,0x20,0x7F,0x20,0x3F,0x20,//吧
180、0x20,0x3F,0x20,0x20,0x7F,0x20,0x00,0x00,
181、0x00,
182、
183、0x00,0x00,0x3f,0x00,0x00,0x00,0x3f,0x00,0x00,0x00,0x3f,0x00,
184、0x00,
185、
186、0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
187、0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
188、
189、};
190、
191、ucharcodetable2[]={
192、//下半屏
193、0x02,0x0C,0xF0,0x00,0x00,0x00,0x00,0x00,
194、0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
195、0x00,
196、
197、0x00,0x00,0x00,0x7F,0x42,0x42,0x42,0x42,
198、0x42,0x42,0x42,0xFF,0x40,0x00,0x00,0x00,
199、0x00,
200、
201、0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,
202、0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x00,
203、
204、0x00,0x00,0xFF,0x00,0x00,0x10,0x20,0xC2,
205、0x01,0xFE,0x00,0x80,0x60,0x30,0x00,0x00,
206、0x00,
207、
208、0x40,0x40,0x40,0x5F,0x52,0xD2,0x52,0x52,
209、0x52,0xD2,0x52,0x7F,0x50,0xC0,0x40,0x00,
210、0x00,
211、
212、0x08,0x10,0x60,0x80,0x41,0x31,0x02,0x0C,
213、0x30,0xC0,0x30,0x08,0x06,0x03,0x02,0x00,
214、0x00,
215、
216、0x00,0xE0,0x40,0x40,0x40,0x40,0xFC,0x42,
217、0x42,0x42,0x42,0xE2,0x02,0x0E,0x00,0x00,
218、0x00,
219、
220、0x00,0x00,0x00,0x00,0x00,0x02,0x01,0xFE,
221、0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
222、0x00,
223、
224、0x00,0xF8,0x10,0x10,0xF8,0x10,0x10,0x90,
225、0x90,0x90,0xB0,0x92,0x81,0xFE,0x80,0x00,
226、0x00,
227、
228、0x10,0x38,0x58,0x54,0x32,0x54,0x58,0x30,
229、0x30,0x58,0x54,0x32,0x54,0x58,0x38,0x28,
230、0x00,0x00,0x00,
231、
232、0x20,0x20,0x7F,0x80,0x00,0x01,0x02,0xFC,
233、0x00,0xFF,0x00,0xFC,0x02,0x02,0x0E,0x00,
234、0x00,
235、
236、0x04,0x08,0x10,0x20,0xC0,0x02,0x01,0xFE,
237、0x00,0x80,0x40,0x20,0x10,0x18,0x10,0x00,
238、0x00,
239、
240、0x02,0x04,0x18,0xE0,0x10,0x0C,0x00,0x00,
241、0x02,0x01,0xFE,0x00,0x00,0x00,0x00,0x00,
242、0x00,
243、
244、0x00,0xfe,0x00,0x00,0xfe,0x00,0x10,0x10,
245、0x00,0xfe,0x82,0xfe,0x00,0xf2,0x92,0xfe,
246、0x00,
247、
248、0x12,0x22,0xD2,0x92,0x92,0x92,0x92,0xFE,
249、0x92,0x92,0x92,0xB2,0x92,0x86,0x02,0x00,
250、0x00,
251、
252、0x21,0x22,0xEC,0x20,0x20,0x28,0xE5,0x22,
253、0x24,0xF8,0x40,0x42,0x41,0xFE,0x00,0x00,
254、0x00,
255、
256、0x00,0x02,0x04,0x18,0x60,0xC0,0x00,0x00,
257、0x00,0x80,0x40,0x30,0x1C,0x0E,0x00,0x00,
258、0x00,
259、
260、0x00,0x01,0x02,0x04,0x08,0x70,0x80,0x00,
261、0x02,0x01,0x02,0xFC,0x00,0x00,0x00,0x00,
262、0x00,
263、
264、0x20,0x20,0x20,0xE0,0x20,0x20,0x20,0xFF,
265、0x20,0x20,0x20,0x20,0x20,0x60,0x20,0x00,
266、0x00,
267、
268、0x02,0x0C,0xF0,0x01,0x02,0x04,0x18,0xE0,
269、0x00,0x04,0x02,0x01,0x02,0xFC,0x00,0x00,
270、0x00,
271、
272、0x4f,0x49,0x79,0x00,0x79,0x49,0x4f,0x00,
273、0xc0,0xc0,0x00,0x7e,0x42,0x42,0x42,0x00,
274、0x00,
275、
276、0x20,0x20,0x7F,0x80,0x02,0x7E,0x42,0x42,
277、0x7E,0x42,0x7E,0x42,0x42,0x7E,0x02,0x00,
278、0x00,
279、
280、0x02,0x04,0xF9,0x01,0x42,0x42,0x64,0x54,
281、0x48,0x54,0x64,0x42,0x02,0x03,0x02,0x00,
282、0x00,
283、
284、0x00,0x00,0x00,0xFE,0x04,0x08,0x10,0x00,
285、0x00,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,
286、0x00,
287、
288、0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,
289、0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x00,
290、
291、0x00,0x00,0xFF,0x00,0x00,0x10,0x20,0xC2,
292、0x01,0xFE,0x00,0x80,0x60,0x30,0x00,0x00,
293、0x00,
294、
295、0x02,0x04,0xF8,0x04,0x22,0x42,0x82,0x02,
296、0xFA,0x02,0x02,0x82,0xC2,0x66,0x04,0x00,
297、0x00,
298、
299、0x10,0x20,0x40,0xFF,0x00,0x02,0x82,0x82,
300、0x82,0xFE,0x82,0x82,0x82,0x06,0x02,0x00,
301、0x00,
302、
303、0x10,0x22,0x41,0x82,0xFD,0x02,0x1C,0xE0,
304、0x00,0xFC,0x02,0x02,0x02,0x02,0x0E,0x00,
305、0x00,
306、
307、0x00,0x02,0x01,0xFE,0x00,0x08,0x2A,0x52,
308、0xA4,0x49,0x3F,0x30,0x48,0x86,0x04,0x00,
309、0x00,
310、
311、0x00,0x00
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