标题: 51单片机控制st7920显示图片 源程序PCB文件 [打印本页]

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作者: 底层用户    时间: 2022-3-26 10:59
标题: 51单片机控制st7920显示图片 源程序PCB文件

1. #ifndef _LCD12864BU_H_
   
2. #define _LCD12864BU_H_
   
3. /*****液晶显示器的端口定义*****/
   
4. #define LCD_data  P0             //数据口
   
5. sbit LCD_RS  =  P2^0;            //寄存器选择输入
   
6. sbit LCD_RW  =  P2^1;            //液晶读/写控制
   
7. sbit LCD_EN  =  P2^2;            //液晶使能控制
   
8. sbit LCD_PSB =  P3^6;            //串/并方式控制
   
9. sbit RST_12864 = P2^5;
   
10. #define uchar unsigned char
    
11. #define uint  unsigned int
    
12. 
    
13.         unsigned char code pictrue1[1024]={
    
14.                 /*--  调入了一幅图像：E:\Desktop\冰.bmp  --*/
    
15. /*--  宽度x高度=128x64  --*/
    
16. 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
    
17. 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
    
18. 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
    
19. 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
    
20. 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
    
21. 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
    
22. 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
    
23. 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x87,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
    
24. 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0x7B,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
    
25. 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0xFD,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
    
26. 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x57,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
    
27. 0xFF,0xFF,0xFF,0xFF,0xF3,0xFF,0xFF,0xFF,0xF8,0x03,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
    
28. 0xFF,0xFF,0x3F,0xFF,0xCC,0xFF,0xFF,0xFF,0x00,0x03,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
    
29. 0xFF,0xFC,0xDF,0xFF,0xE1,0xFF,0xFF,0xF8,0x00,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
    
30. 0xFF,0xFD,0x7C,0x00,0x1E,0xFF,0xFF,0xF0,0x00,0x00,0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,
    
31. 0xFF,0xFF,0xF0,0x00,0x0E,0xFF,0xFF,0xF0,0x00,0x00,0x1F,0xFF,0xFF,0xFF,0xFF,0xFF,
    
32. 0xFF,0xFF,0xE0,0x00,0x05,0xFF,0xFF,0xC2,0x00,0x00,0x0F,0xFF,0xFF,0xFF,0xFF,0xFF,
    
33. 0xFF,0xFF,0xC0,0x01,0x81,0xFF,0xFF,0x80,0x00,0x00,0x02,0x20,0xFF,0xFF,0xFF,0xFF,
    
34. 0xFF,0xFF,0x80,0x28,0x09,0xDE,0x01,0xC0,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,
    
35. 0x00,0x04,0x00,0x9F,0xFA,0xE0,0x01,0xC0,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,
    
36. 0x00,0x06,0x02,0x70,0x06,0x4F,0x03,0xC0,0x00,0x00,0x09,0x00,0xFF,0xFF,0xFF,0xFF,
    
37. 0x00,0x0C,0x07,0x88,0x09,0xFF,0x83,0xC2,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,
    
38. 0x00,0x0C,0x0F,0x20,0x00,0xFF,0x83,0xB8,0x00,0x00,0x00,0x80,0xFF,0xFF,0xFF,0xFF,
    
39. 0x00,0x18,0x1E,0x00,0x01,0x7F,0x07,0x80,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,
    
40. 0x00,0x18,0x3F,0x00,0x04,0x3F,0x87,0x00,0x00,0x80,0x00,0x00,0xFF,0xFF,0xFF,0xFF,
    
41. 0x00,0x18,0x38,0x7C,0x0F,0x3E,0x07,0x00,0x00,0x00,0x00,0x40,0xFF,0xFF,0xFF,0xFF,
    
42. 0x00,0x18,0x78,0xE4,0x01,0x7F,0x07,0x00,0x00,0x00,0x00,0x40,0xFF,0xFF,0xFF,0xFF,
    
43. 0x00,0x18,0x75,0xE6,0x05,0xDC,0x06,0x0C,0x00,0x30,0x04,0x40,0xFF,0xFF,0xFF,0xFF,
    
44. 0x00,0x10,0x3B,0xFE,0x05,0x98,0x06,0x0C,0x00,0x00,0x3F,0xC0,0xFF,0xFF,0xFF,0xFF,
    
45. 0x00,0x10,0x63,0xE4,0x7D,0x9C,0x02,0x00,0x00,0x00,0x7F,0xC0,0xFF,0xFF,0xFF,0xFF,
    
46. 0x00,0x10,0xE3,0xE4,0x67,0x98,0x02,0x00,0x00,0xC0,0x3F,0xC0,0xFF,0xFF,0xFF,0xFF,
    
47. 0x00,0x10,0xEB,0xF8,0x07,0x98,0x03,0x00,0x00,0xC0,0x7F,0xC0,0xFF,0xFF,0xFF,0xFF,
    
48. 0x00,0x10,0xE3,0xF1,0x13,0x98,0x01,0x80,0x00,0x00,0x7F,0x80,0xFF,0xFF,0xFF,0xFF,
    
49. 0x00,0x10,0xE3,0xE0,0x01,0x90,0x01,0xF0,0x00,0x00,0x7F,0x80,0xFF,0xFF,0xFF,0xFF,
    
50. 0x00,0x38,0x61,0xC0,0x00,0x10,0x00,0xFC,0x00,0x00,0x3F,0x80,0xFF,0xFF,0xFF,0xFF,
    
51. 0x00,0x3C,0x78,0x00,0x00,0x50,0x00,0x7F,0x00,0x00,0x3F,0x00,0xFF,0xFF,0xFF,0xFF,
    
52. 0x00,0x7C,0x70,0x00,0x00,0xB0,0x00,0x3F,0xFF,0x7C,0x7E,0x00,0xFF,0xFF,0xFF,0xFF,
    
53. 0x00,0x3E,0x38,0x00,0x01,0x60,0x00,0x3F,0xFF,0xFF,0xFC,0x00,0xFF,0xFF,0xFF,0xFF,
    
54. 0x00,0x7E,0x1F,0x20,0x3D,0xC0,0x00,0x7F,0xFF,0xFF,0xF8,0x00,0xFF,0xFF,0xFF,0xFF,
    
55. 0x00,0xFE,0x1F,0xE0,0x07,0xC0,0x00,0x7F,0xFF,0xFF,0xE0,0x00,0xFF,0xFF,0xFF,0xFF,
    
56. 0x00,0xFF,0x07,0xFF,0xFF,0x80,0x00,0x7F,0xFF,0xFF,0x80,0x00,0xFF,0xFF,0xFF,0xFF,
    
57. 0x00,0xFF,0x83,0xFF,0xFF,0x00,0x00,0x7F,0xFF,0xFF,0x00,0x00,0xFF,0xFF,0xFF,0xFF,
    
58. 0x01,0xFF,0x80,0x7F,0xF8,0x00,0x00,0x3F,0xFF,0xFF,0x80,0x00,0xFF,0xFF,0xFF,0xFF,
    
59. 0x01,0xF8,0x00,0x00,0x81,0x80,0x00,0x1F,0xFF,0xFF,0xC0,0x00,0xFF,0xFF,0xFF,0xFF,
    
60. 0x01,0xF8,0x00,0x01,0xE1,0x00,0x00,0x07,0xC0,0x3F,0xC0,0x00,0xFF,0xFF,0xFF,0xFF,
    
61. 0x03,0xF8,0x00,0x01,0xFF,0x00,0x00,0x03,0xD8,0x3F,0xC0,0x00,0xFF,0xFF,0xFF,0xFF,
    
62. 0x00,0xE8,0xFE,0x3F,0xFE,0x00,0x00,0x03,0xC8,0x3F,0xC0,0x00,0xFF,0xFF,0xFF,0xFF,
    
63. 0x00,0xF0,0xFF,0xFF,0xFE,0x00,0x00,0x03,0x90,0x1F,0xC0,0x00,0xFF,0xFF,0xFF,0xFF,
    
64. 0x00,0x00,0xFF,0xFF,0xFC,0x00,0x00,0x03,0xA0,0x3E,0x00,0x00,0xFF,0xFF,0xFF,0xFF,
    
65. 0x00,0x01,0x7F,0xFF,0xFC,0x00,0x00,0x01,0x80,0x3C,0x00,0x00,0xFF,0xFF,0xFF,0xFF,
    
66. 0x00,0x00,0x7F,0xFF,0xFC,0x00,0x00,0x01,0xC0,0x3C,0x00,0x00,0xFF,0xFF,0xFF,0xFF,
    
67. 0x00,0x00,0xFF,0xFF,0xFC,0x00,0x00,0x01,0xFC,0xFC,0x00,0x00,0xFF,0xFF,0xFF,0xFF,
    
68. 0x00,0x00,0xBF,0xFF,0xFC,0x00,0x00,0x00,0xFF,0xF8,0x00,0x00,0xFF,0xFF,0xFF,0xFF,
    
69. 0x00,0x00,0x3F,0xF7,0xF8,0x00,0x00,0x00,0xFF,0xC0,0x00,0x00,0xFF,0xFF,0xFF,0xFF,
    
70. 0x00,0x00,0x3F,0xC1,0xF8,0x00,0x00,0x00,0xFF,0x10,0x00,0x00,0xFF,0xFF,0xFF,0xFF,
    
71. 0x00,0x00,0x3F,0x81,0xF8,0x00,0x00,0x00,0x79,0xF8,0x00,0x00,0xFF,0xFF,0xFF,0xFF,
    
72. 0x00,0x00,0x3F,0x80,0x74,0x00,0x00,0x00,0x01,0xF0,0x00,0x00,0xFF,0xFF,0xFF,0xFF,
    
73. 0x00,0x00,0x5F,0x41,0x98,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,
    
74. 0x00,0x00,0x3F,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,
    
75. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,
    
76. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,
    
77. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,
    
78. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,
    
79. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF};//\Desktop\冰.bmp0
    
80. 
    
81. 
    
82. /****************************************************************************
    
83. 函数功能:LCD延时程序
    
84. 入口参数:del
    
85. 出口参数:
    
86. ****************************************************************************/
    
87. //忙检测，若忙则等待，最长等待时间为60ms
    
88. //延时子程序
    
89. void delay_12864(unsigned int del){
    
90. unsigned int i;
    
91. for(i = 0; i < del; i++){; }
    
92. }
    
93. /****************************************************************************
    
94. 状态检查，LCD是否忙
    
95. *****************************************************************************/
    
96. //void busychk_12864(void){
    
97. //unsigned int timeout = 0;
    
98. //  LCD_EN  = 0;
    
99. //  LCD_RS = 0;
    
100. //  LCD_RW  = 1;
     
101. //  LCD_EN  = 1;
     
102. //while(( LCD_data & 0x80)&& ++timeout != 0);  //忙状态检测，等待超时时间为60ms
     
103. //  LCD_EN  = 0;
     
104. //}
     
105. /*****************************************************************************
     
106. 函数功能:写命令到LCD程序，RS(DI)=L,RW=L,EN=H，即来一个脉冲写一次
     
107. 入口参数:cmd
     
108. 出口参数:
     
109. *****************************************************************************/
     
110. //写命令子程序
     
111. void wrtcom_12864(unsigned char com){
     
112. //busychk_12864();
     
113.   LCD_EN  = 0;
     
114.   LCD_RS = 0;
     
115.   LCD_RW  = 0;
     
116. LCD_data = com;
     
117.   LCD_EN  = 1;
     
118. delay_12864(50);    //使能延时!!!注意这里，如果是较快的CPU应该延时久一些
     
119.   LCD_EN  = 0;  
     
120. }
     
121. ////读数据子程序
     
122. //unsigned char reddat_12864(void){
     
123. //unsigned char temp;
     
124. //busychk_12864();
     
125. //  LCD_EN  = 0;
     
126. // LCD_data = 0xff;  //IO口置高电平，读引脚
     
127. //  LCD_RS = 1;
     
128. //  LCD_RW  = 1;
     
129. //  LCD_EN  = 1;
     
130. //delay_12864(50);    //使能延时!!!注意这里，如果是较快的CPU应该延时久一些
     
131. //temp =  LCD_data;
     
132. //return temp;
     
133. //}
     
134. //写数据子程序
     
135. void wrtdat_12864(unsigned char dat){
     
136. //busychk_12864();
     
137.   LCD_EN  = 0;
     
138.   LCD_RS = 1;
     
139.   LCD_RW  = 0;
     
140.   LCD_EN  = 1;
     
141. LCD_data = dat;
     
142. delay_12864(50);    //使能延时!!!注意这里，如果是较快的CPU应该延时久一些
     
143.   LCD_EN  = 0;  
     
144. }
     
145. 
     
146. /*****************************************************************************
     
147. 函数功能:LCD初始化程序
     
148. 入口参数:
     
149. 出口参数:
     
150. *****************************************************************************/
     
151. //初始化12864子函数
     
152. void initial_12864(void){
     
153. delay_12864(40000);
     
154. RST_12864 = 1;
     
155. RST_12864 = 0;    //复位
     
156. delay_12864(500);
     
157. RST_12864 = 1;
     
158. wrtcom_12864(0x30);   //设置为基本指令集动作
     
159. delay_12864(100);
     
160. wrtcom_12864(0x30);   //设置为基本指令集动作
     
161. delay_12864(37);
     
162. wrtcom_12864(0x08);   //设置显示、光标、闪烁全关。
     
163. delay_12864(100);
     
164. wrtcom_12864(0x01);   //清屏，并且DDRAM数据指针清零
     
165. delay_12864(100000);
     
166. wrtcom_12864(0x06);   //进入模式设置
     
167. wrtcom_12864(0x0c);   //开显示
     
168. }
     
169. 
     
170. 
     
171. void Clear12864Screen()
     
172. 
     
173. {
     
174. 
     
175.    unsigned char i,j;
     
176. 
     
177.   wrtcom_12864(0x34);//功能设定：8位控制方式，使用扩充指令
     
178. 
     
179.   wrtcom_12864(0x36);//使用扩充指令，绘图显示控制
     
180. 
     
181.    for(i=0;i<32;i++)
     
182. 
     
183. //ST7920可控制256*32点阵（32行256列），而12864液晶实际的行地址只有0-31行,
     
184. 
     
185. //12864液晶的32-63行的行是0-31行地址从第128列划分一半出来的,所以分为上下两半屏，
     
186. 
     
187. //也就是说第0行和第32行同属一行，行地址相同;第1行和第33行同属一行，以此类推
     
188. 
     
189.    {                           
     
190. 
     
191.          wrtcom_12864(0x80|i);//写行地址（垂直地址）
     
192. 
     
193.          wrtcom_12864(0x80);//写列地址（水平地址）
     
194. 
     
195.           for(j=0;j<32;j++)
     
196. 
     
197.                     wrtdat_12864(0x00);//清屏
     
198. 
     
199.    }
     
200. 
     
201. }
     
202. 
     
203. void LCD12864DisplayPictrue(unsigned char y,unsigned char x,
     
204. 
     
205.                               unsigned char px,unsigned char py, unsigned char *pp)
     
206. 
     
207. //y-起始行（数值0-63），x-起始列（16位宽，数值0-7），
     
208. 
     
209. //px-图片宽度，py-图片高度，pp-指针指向图片数组
     
210. 
     
211. //因为上下屏的地址不连续，要在任意位置显示完整的图像，处理起来比较繁琐
     
212. 
     
213. {
     
214. 
     
215.    unsigned char i,j,k;
     
216. 
     
217.    Clear12864Screen();//清屏
     
218. 
     
219.    if(y<32)//如果起始行在上半屏
     
220. 
     
221.    {
     
222. 
     
223.           k=32-y;//算出上半屏的行数
     
224. 
     
225.           for(i=0;i<k;i++,y++)//上半屏行数
     
226. 
     
227.           {
     
228. 
     
229.                      wrtcom_12864(0x80|y);//写行地址（垂直地址）
     
230. 
     
231.                      wrtcom_12864(0x80|x);//写列地址（水平地址）
     
232. 
     
233.                      for(j=0;j<px/8;j++)
     
234. 
     
235.                               wrtdat_12864(pp[i*px/8+j]);//写图片数据
     
236. 
     
237.           }
     
238. 
     
239.           y=0;//下半屏起始行，接上半屏继续写数据
     
240. 
     
241.           for(;i<py;i++,y++)//下半屏剩下的行数
     
242. 
     
243.           {
     
244. 
     
245.                      wrtcom_12864(0x80|y);//写行地址（垂直地址）
     
246. 
     
247.                      wrtcom_12864(0x80|(8+x));//写列地址（水平地址）
     
248. 
     
249.                      for(j=0;j<px/8;j++)
     
250. 
     
251.                               wrtdat_12864(pp[i*px/8+j]);//写图片数据
     
252. 
     
253.           }
     
254. 
     
255.    }
     
256. 
     
257.    else //如果起始行在下半屏
     
258. 
     
259.    {
     
260. 
     
261.           for(i=0;i<py;i++,y++)//行数
     
262. 
     
263.           {
     
264. 
     
265.                      wrtcom_12864(0x80|(y-32));//写行地址（垂直地址）
     
266. 
     
267.                      wrtcom_12864(0x80|(8+x));//写列地址（水平地址）
     
268. 
     
269.                      for(j=0;j<px/8;j++)
     
270. 
     
271.                                wrtdat_12864(pp[i*px/8+j]);//写图片数据
     
272. 
     
273.           }
     
274. 
     
275.    }
     
276. 
     
277. }   
     
278. 
     
279. 
     
280. #endif

复制代码

1. #include < reg52.h>
   
2. #include < lcd12864bu.h>
   
3. 
   
4. void main()
   
5. {
   
6.             initial_12864();       //初始化12864
   
7.                                  LCD12864DisplayPictrue(0,0,128,64,pictrue1);//显示
   
8. 
   
9.         while(1);
   
10. }
    

复制代码

Keil代码下载: 冰.7z (17.44 KB, 下载次数: 22)

2022-3-26 21:37 上传

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作者: byf51hei    时间: 2023-3-28 23:32
问一下，这个屏（ST7920）显示图片的时候，当图片比较小，不满128X64像素，显示完图片后其它区域就会乱码，怎么回事？显示前清屏了也不行

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作者: 大漠孤烟001    时间: 2023-3-29 08:21
用下面的完全正确验证过的实战程序测试下
第36个实战程序

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