📄 93c46.lst
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172 2 InData<<=1;
173 2 }
C51 COMPILER V7.06 93C46 06/19/2007 13:22:16 PAGE 4
174 1 LCK = 0;
175 1 P0 = 0x00;
176 1 LCK = 1;//CS=0;
177 1 }
178
179
180 //****************************** 禁止写入************************
181 void Ewds(void) {
182 1 unsigned char temp,InData;
183 1 LCK = 0;
184 1 P0 = 0x00;
185 1 LCK = 1;//CS=0;
186 1
187 1 SK=0;
188 1
189 1 LCK = 0;
190 1 P0 = 0x40;
191 1 LCK = 1;//CS=0;
192 1
193 1 InData=0x80; // 10000XXXX
194 1 for(temp=9;temp!=0;temp--) { // 9
195 2 DI=InData&0x80;
196 2 SK=1; SK=0;
197 2 InData<<=1;
198 2 }
199 1 LCK = 0;
200 1 P0 = 0x00;
201 1 LCK = 1;//CS=0;
202 1 }
203
204 //**************************读address中的一字节****************************
205 unsigned int Read(unsigned char address) {
206 1 unsigned char temp;
207 1 unsigned int result;
208 1 Ewen();
209 1 SK=0; DI=1; // 110 A5-A0
210 1 LCK = 0;
211 1 P0 = 0x00;
212 1 LCK = 1;//CS=0;
213 1
214 1 LCK = 0;
215 1 P0 = 0x40;
216 1 LCK = 1;//CS=1;
217 1
218 1 SK=1; SK=0; // 1
219 1 address=address&0x3f|0x80;
220 1 for(temp=8;temp!=0;temp--) { // 8
221 2 DI=address&0x80;
222 2 SK=1; SK=0;
223 2 address<<=1;
224 2 }
225 1 DO=1;
226 1 for(temp=16;temp!=0;temp--) { // 16
227 2 SK=1;
228 2 result=(result<<1)|DO;
229 2 SK=0;
230 2 }
231 1 LCK = 0;
232 1 P0 = 0x00;
233 1 LCK = 1;//CS=0;
234 1 Ewds();
235 1 return(result);
C51 COMPILER V7.06 93C46 06/19/2007 13:22:16 PAGE 5
236 1 }
237
238 //***************************往address中写一字节InData************************
239 void Write(unsigned char address,unsigned int InData) {
240 1 unsigned char temp;
241 1 Ewen();
242 1 SK=0; DI=1; // 101 A5-A0
243 1 LCK = 0;
244 1 P0 = 0x00;
245 1 LCK = 1;//CS=0;
246 1
247 1 LCK = 0;
248 1 P0 = 0x40;
249 1 LCK = 1;//CS=0;
250 1
251 1 SK=1; SK=0; // 1
252 1
253 1 address=address&0x3f|0x40;
254 1 for(temp=8;temp!=0;temp--) { // 8
255 2 DI=address&0x80;
256 2 SK=1; SK=0;
257 2 address<<=1;
258 2 }
259 1 for(temp=16;temp!=0;temp--) { // 16
260 2 DI=InData&0x8000;
261 2 SK=1; SK=0;
262 2 InData<<=1;
263 2 }
264 1 LCK = 0;
265 1 P0 = 0x00;
266 1 LCK = 1;//CS=0;
267 1
268 1 DO=1;
269 1
270 1 LCK = 0;
271 1 P0 = 0x40;
272 1 LCK = 1;//CS=0;
273 1
274 1 SK=1;
275 1 while(DO==0) { // busy test
276 2 SK=0; SK=1;
277 2 }
278 1 SK=0;
279 1 LCK = 0;
280 1 P0 = 0x00;
281 1 LCK = 1;//CS=0;
282 1 Ewds();
283 1 }
284
285
286 //*************************读address开始的一个字节，分高字节和地字节*******************
287 unsigned char ReadChar(unsigned char address) {
288 1 unsigned char temp=address>>1;
289 1 if(address&0x01) return((unsigned char)(Read(temp)>>8));
290 1 else return((unsigned char)(Read(temp)));
291 1 }
292
293 //**************************写address开始的一个字节，分高字节和地字节*****************
294 void WriteChar(unsigned char address,unsigned char InData) {
295 1 unsigned char temp=address>>1;
296 1 if(address&0x01) Write(temp,(unsigned int)(Read(temp)&0x00ff|(InData<<8)));
297 1 else Write(temp,(unsigned int)(Read(temp)&0xff00|InData));
C51 COMPILER V7.06 93C46 06/19/2007 13:22:16 PAGE 6
298 1 }
299
300 //********************************读一个字符串**********************************
301 void ReadString(unsigned char data *RamAddress,unsigned char RomAddress,unsigned char Number) {
302 1 while(Number!=0) {
303 2 *RamAddress=ReadChar(RomAddress);
304 2 RamAddress++;
305 2 RomAddress++;
306 2 Number--;
307 2 }
308 1 }
309
310
311 //**********************************写一个字符串**************************************//置左又半区标志//置
-左又半区标志
312 void WriteString(unsigned char data *RamAddress,unsigned char RomAddress,unsigned char Number) {
313 1 unsigned int temp;
314 1 if(Number==0) return;
315 1 if(RomAddress&0x01) {
316 2 WriteChar(RomAddress,*RamAddress);
317 2 RamAddress++;
318 2 RomAddress++;
319 2 Number--;
320 2 }
321 1
322 1 if(Number==0) return;
323 1 while(Number>>1) {
324 2 temp=*RamAddress;
325 2 RamAddress++;
326 2 temp=temp|(*RamAddress)<<8;
327 2 RamAddress++;
328 2 Write(RomAddress>>1,temp);
329 2 RomAddress++;
330 2 RomAddress++;
331 2 Number--;
332 2 Number--;
333 2 }
334 1 if(Number) WriteChar(RomAddress,*RamAddress);
335 1
336 1 }
337
338 /**********************************结束***********************************/
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 707 ----
CONSTANT SIZE = ---- ----
XDATA SIZE = ---- ----
PDATA SIZE = ---- ----
DATA SIZE = 22 7
IDATA SIZE = ---- ----
BIT SIZE = 2 ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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