?? lcd.lst
字號:
C51 COMPILER V7.50 LCD 07/22/2007 16:13:48 PAGE 1
C51 COMPILER V7.50, COMPILATION OF MODULE LCD
OBJECT MODULE PLACED IN LCD.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE LCD.c BROWSE DEBUG OBJECTEXTEND
line level source
1 #include"REG51F.h"
2 #include"intrins.h"
3 #include"USEH1.h"
4 #include"lcd.h"
5 #include"HZcode.h"
6
7 bit busy_bit=1;
8 //函數(shù)聲明==============================
9 void nop(void);
10 bit CheckBusy(void); //狀態(tài)檢查
11 //寫顯示數(shù)據(jù)
12 //dat:顯示數(shù)據(jù)
13 void WriteByte(uchar dat);
14 //向LCD發(fā)送命令
15 //command :命令
16 SendCommandToLCD(uchar command);
17
18 //函數(shù)定義==============================
19 void nop(void)
20 {
21 1 _nop_();
22 1 _nop_();
23 1 _nop_();
24 1 _nop_();
25 1 _nop_();
26 1 _nop_();
27 1 _nop_();
28 1 _nop_();
29 1 _nop_();
30 1 _nop_();
31 1 _nop_();
32 1 }
33 //狀態(tài)檢查
34 bit CheckBusy(void)
35 {
36 1 uchar state=0;
37 1
38 1 P1=0xFF;//空讀操作
39 1 RW=1;
40 1 DI=0;
41 1 EN=1;
42 1 state=P1;
43 1 EN=0;
44 1
45 1 P1=0xFF;//再讀才有效
46 1 RW=1;
47 1 DI=0;
48 1 EN=1;
49 1 state=P1;
50 1 EN=0;
51 1 busy_bit=(bit)(state>>7);
52 1 return(busy_bit);
53 1 }
54
55 //寫顯示數(shù)據(jù)
C51 COMPILER V7.50 LCD 07/22/2007 16:13:48 PAGE 2
56 //dat:顯示數(shù)據(jù)
57 void WriteByte(uchar dat)
58 {
59 1 while(CheckBusy());
60 1 DI=1;
61 1 RW=0;
62 1 LCD_P=dat;
63 1 EN=1;
64 1 EN=0;
65 1 }
66 /*-----------------------------------------------------------------------------------------------------*/
67 //向LCD發(fā)送命令
68 //command :命令
69 SendCommandToLCD(uchar command)
70 {
71 1 while(CheckBusy());
72 1 RW=0;
73 1 DI=0;
74 1 LCD_P=command;
75 1 EN=1;
76 1 EN=0;
77 1 }
78 /*----------------------------------------------------------------------------------------------------*/
79 //設(shè)定行地址(頁)--X 0-7
80 void SetLine(uchar line)
81 {
82 1 line &= 0x07; // 0<=line<=7
83 1 line |= 0xb8; //1011 1xxx
84 1 SendCommandToLCD(line);
85 1 }
86 //設(shè)定列地址--Y 0-63
87 void SetColumn(uchar column)
88 {
89 1 column &= 0x3f; // 0=<column<=63
90 1 column |= 0x40; //01xx xxxx
91 1 SendCommandToLCD(column);
92 1 }
93 //設(shè)定顯示開始行--XX
94 void SetStartLine(uchar startline) //0--63
95 {
96 1 //startline &= 0x07;
97 1 startline |= 0xc0; //1100 0000
98 1 SendCommandToLCD(startline);
99 1 }
100 //開關(guān)顯示
101 void SetOnOff(uchar onoff)
102 {
103 1 onoff|=0x3e; //0011 111x
104 1 SendCommandToLCD(onoff);
105 1 }
106 /*---------------------------------------------------------------------------------------------------*/
107 //選擇屏幕
108 //screen: 0-全屏,1-左屏,2-右屏
109 void SelectScreen(uchar screen)
110 { //北京顯示器:負(fù)有效 CS1: 0--右; CS2: 0--左
111 1 switch(screen)
112 1 {
113 2 case 0:
114 2 CS1=0;//全屏
115 2 nop();
116 2 CS2=0;
117 2 nop();
C51 COMPILER V7.50 LCD 07/22/2007 16:13:48 PAGE 3
118 2 break;
119 2 case 1:
120 2 CS1=1;//左屏
121 2 nop();
122 2 CS2=0;
123 2 nop();
124 2 break;
125 2 case 2:
126 2 CS1=0;//右屏
127 2 nop();
128 2 CS2=1;
129 2 nop();
130 2 break;
131 2 default:
132 2 break;
133 2 }
134 1 }
135 /*---------------------------------------------------------------------------------------------------*/
136 //清屏
137 //screen: 0-全屏,1-左屏,2-右
138 void ClearScreen(uchar screen)
139 {
140 1 uchar i,j;
141 1 SelectScreen(screen);
142 1 for(i=0;i<8;i++)
143 1 {
144 2 SetLine(i);
145 2 for(j=0;j<64;j++)
146 2 {
147 3 SetColumn(j);
148 3 WriteByte(0x00);
149 3 }
150 2 }
151 1 }
152 /*--------------------------------------------------------------------------------------------------*/
153 //顯示8*8點(diǎn)陣
154 //lin:行(0-7), column: 列(0-127)
155 //address : 字模區(qū)首地址
156 void Show8x8(uchar lin,uchar column,uchar *address)
157 {
158 1 uchar i;
159 1 //if(column>128) {return;}
160 1 if(column<64)
161 1 {
162 2 SelectScreen(1); //如果列數(shù)<64則從第一屏上開始寫
163 2 SetLine(lin);
164 2 SetColumn(column);
165 2 for(i=0;i<8;i++)
166 2 {
167 3 if(column+i<64)
168 3 {
169 4 WriteByte(*(address+i));
170 4 }
171 3 else
172 3 {
173 4 SelectScreen(2);
174 4 SetLine(lin);
175 4 SetColumn(column-64+i);
176 4 WriteByte(*(address+i));
177 4 }
178 3 }
179 2 }
C51 COMPILER V7.50 LCD 07/22/2007 16:13:48 PAGE 4
180 1 else
181 1 {
182 2 SelectScreen(2); //否則從第二屏上開始寫
183 2 column-=64; //防止越界
184 2 SetLine(lin);
185 2 SetColumn(column);
186 2 for(i=0;i<8;i++)
187 2 {
188 3 if(column+i<64)
189 3 {
190 4 WriteByte(*(address+i));
191 4 }
192 3 else
193 3 {
194 4 SelectScreen(1);
195 4 SetLine(lin);
196 4 SetColumn(column-64+i);
197 4 WriteByte(*(address+i));
198 4 }
199 3 }
200 2 }
201 1 }
202 /*--------------------------------------------------------------------------------------------------*/
203 /*//顯示數(shù)字8*16
204 void ShowNumber(uchar lin,uchar column,uchar num)
205 {
206 uchar *address;
207 address=&Numcode[num][0];
208 Show8x8(lin,column,address);
209 Show8x8(lin+1,column,address+8);
210 }*/
211 /*--------------------------------------------------------------------------------------------------*/
212 //顯示漢字16*16
213 void ShowChina(uchar lin,uchar column,uchar num)
214 {
215 1 uchar *address;
216 1 //if(lin>7 || column>127){return;}
217 1 address = &HZcode[num][0];
218 1 Show8x8(lin,column,address);
219 1 Show8x8(lin,column+8,address+8);
220 1 Show8x8(lin+1,column,address+16);
221 1 Show8x8(lin+1,column+8,address+24);
222 1 }
223 /*--------------------------------------------------------------------------------------------------*/
224 void InitLCD(void) //初始化LCD
225 {
226 1 uchar i=2000; //延時(shí)
227 1 while(i--);
228 1 SetOnOff(1); //開顯示
229 1 ClearScreen(1);//清屏
230 1 ClearScreen(2);
231 1 SetStartLine(0); //開始行:0
232 1 }
233 /*--------------------------------------------------------------------------------------------------*/
234 /*void r_show8x8(uchar lin,uchar column,uchar *address)
235 {
236 uchar i,r_data;
237 if(column<64)
238 {
239 SelectScreen(1); //如果列數(shù)<64則從第一屏上開始寫
240 SetLine(lin);
241 SetColumn(column);
C51 COMPILER V7.50 LCD 07/22/2007 16:13:48 PAGE 5
242 for(i=0;i<8;i++)
243 {
244 if(column+i<64)
245 {
246 r_data = ~(*(address+i));
247 WriteByte(r_data);
248 }
249 else
250 {
251 SelectScreen(2);
252 SetLine(lin);
253 SetColumn(column-64+i);
254 r_data = ~(*(address+i));
255 WriteByte(r_data);
256 }
257 }
258 }
259 else
260 {
261 SelectScreen(2); //否則從第二屏上開始寫
262 column-=64; //防止越界
263 SetLine(lin);
264 SetColumn(column);
265 for(i=0;i<8;i++)
266 {
267 if(column+i<64)
268 {
269 r_data = ~(*(address+i));
270 WriteByte(r_data);
271 }
272 else
273 {
274 SelectScreen(1);
275 SetLine(lin);
276 SetColumn(column-64+i);
277 r_data = ~(*(address+i));
278 WriteByte(r_data);
279 }
280 }
281 }
282 }*/
283 /*--------------------------------------------------------------------------------------------------*/
284 /*void r_ShowNumber(uchar lin,uchar column,uchar num)
285 {
286 uchar *address;
287 address=&Numcode[num][0];
288 r_show8x8(lin,column,address);
289 r_show8x8(lin+1,column,address+8);
290 }*/
291 /*--------------------------------------------------------------------------------------------------*/
292 //顯示圖片
293 //lin:行(0-7), column: 列(0-127)
294 //high:高度, width:寬度(要為8的倍數(shù))
295 //address : 圖片區(qū)首地址
296 void ShowPicture(uchar lin, uchar column, uchar high, uchar width, uchar *address)
297 {
298 1 uchar i, j;
299 1 //if(column>128) {return;}
300 1 if(column<64)
301 1 {
302 2 for(j=0;j<high;j+=8)
303 2 {
C51 COMPILER V7.50 LCD 07/22/2007 16:13:48 PAGE 6
304 3 SelectScreen(1); //如果列數(shù)<64則從第一屏上開始寫
305 3 SetLine(lin);
306 3 SetColumn(column);
307 3 for(i=0;i<width;i++)
308 3 {
309 4 if(i+column>127)
310 4 break;
311 4 if(column+i<64)
312 4 {
313 5 WriteByte(*(address+i));
314 5 }
315 4 else
316 4 {
317 5 SelectScreen(2);
318 5 SetLine(lin);
319 5 SetColumn(column-64+i);
320 5 WriteByte(*(address+i));
321 5 }
322 4 }
323 3 lin+=1;
324 3 address+=width;
325 3 }
326 2 }
327 1 else
328 1 {
329 2 column-=64; //防止越界
330 2 for(j=0;j<high;j+=8)
331 2 {
332 3 SelectScreen(2); //否則從第二屏上開始寫
333 3 SetLine(lin);
334 3 SetColumn(column);
335 3 for(i=0;i<width;i++)
336 3 {
337 4 if(i+column>64)
338 4 break;
339 4 if(column+i<64)
340 4 {
341 5 WriteByte(*(address+i));
342 5 }
343 4 else
344 4 {
345 5 SelectScreen(1);
346 5 SetLine(lin);
347 5 SetColumn(column-64+i);
348 5 WriteByte(*(address+i));
349 5 }
350 4 }
351 3 lin+=1;
352 3 address+=width;
353 3 }
354 2 }
355 1 }
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 729 ----
CONSTANT SIZE = 1216 ----
XDATA SIZE = ---- ----
PDATA SIZE = ---- ----
DATA SIZE = ---- 20
IDATA SIZE = ---- ----
BIT SIZE = 1 ----
C51 COMPILER V7.50 LCD 07/22/2007 16:13:48 PAGE 7
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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