?? ds1302.lst
字號(hào):
230 2 Time->DateString[2] = Time->Year/10 + '0';
231 2 Time->DateString[3] = Time->Year%10 + '0';
232 2 }
233 1 else
234 1 {
235 2 Time->DateString[0] = ' ';
236 2 Time->DateString[1] = ' ';
237 2 Time->DateString[2] = ' ';
238 2 Time->DateString[3] = ' ';
239 2 }
240 1 Time->DateString[4] = '/';
C51 COMPILER V8.02 DS1302 07/12/2008 21:49:01 PAGE 5
241 1 if(hide_month<2)
242 1 {
243 2 Time->DateString[5] = Time->Month/10 + '0';
244 2 Time->DateString[6] = Time->Month%10 + '0';
245 2 }
246 1 else
247 1 {
248 2 Time->DateString[5] = ' ';
249 2 Time->DateString[6] = ' ';
250 2 }
251 1 Time->DateString[7] = '/';
252 1 if(hide_day<2)
253 1 {
254 2 Time->DateString[8] = Time->Day/10 + '0';
255 2 Time->DateString[9] = Time->Day%10 + '0';
256 2 }
257 1 else
258 1 {
259 2 Time->DateString[8] = ' ';
260 2 Time->DateString[9] = ' ';
261 2 }
262 1 if(hide_week<2)
263 1 {
264 2 week_value[0] = Time->Week%10 + '0'; //星期的數(shù)據(jù)另外放到 week_value[]數(shù)組里,跟年,月,日的分開(kāi)存放,因?yàn)榈? -一下要在最后顯示
265 2 }
266 1 else
267 1 {
268 2 week_value[0] = ' ';
269 2 }
270 1 week_value[1] = '\0';
271 1
272 1 Time->DateString[10] = '\0'; //字符串末尾加 '\0' ,判斷結(jié)束字符
273 1 }
274
275 void TimeToStr(SYSTEMTIME *Time) //將時(shí),分,秒數(shù)據(jù)轉(zhuǎn)換成液晶顯示字符放到數(shù)組 TimeString[];
276 { if(hide_hour<2)
277 1 {
278 2 Time->TimeString[0] = Time->Hour/10 + '0';
279 2 Time->TimeString[1] = Time->Hour%10 + '0';
280 2 }
281 1 else
282 1 {
283 2 Time->TimeString[0] = ' ';
284 2 Time->TimeString[1] = ' ';
285 2 }
286 1 Time->TimeString[2] = ':';
287 1 if(hide_min<2)
288 1 {
289 2 Time->TimeString[3] = Time->Minute/10 + '0';
290 2 Time->TimeString[4] = Time->Minute%10 + '0';
291 2 }
292 1 else
293 1 {
294 2 Time->TimeString[3] = ' ';
295 2 Time->TimeString[4] = ' ';
296 2 }
297 1 Time->TimeString[5] = ':';
298 1 if(hide_sec<2)
299 1 {
300 2 Time->TimeString[6] = Time->Second/10 + '0';
301 2 Time->TimeString[7] = Time->Second%10 + '0';
C51 COMPILER V8.02 DS1302 07/12/2008 21:49:01 PAGE 6
302 2 }
303 1 else
304 1 {
305 2 Time->TimeString[6] = ' ';
306 2 Time->TimeString[7] = ' ';
307 2 }
308 1 Time->DateString[8] = '\0';
309 1 }
310
311
312 void Initial_DS1302(void) //時(shí)鐘芯片初始化
313 {
314 1 unsigned char Second=Read1302(DS1302_SECOND);
315 1 if(Second&0x80) //判斷時(shí)鐘芯片是否關(guān)閉
316 1 {
317 2 Write1302(0x8e,0x00); //寫(xiě)入允許
318 2 Write1302(0x8c,0x07); //以下寫(xiě)入初始化時(shí)間 日期:07/07/25.星期: 3. 時(shí)間: 23:59:55
319 2 Write1302(0x88,0x07);
320 2 Write1302(0x86,0x25);
321 2 Write1302(0x8a,0x07);
322 2 Write1302(0x84,0x23);
323 2 Write1302(0x82,0x59);
324 2 Write1302(0x80,0x55);
325 2 Write1302(0x8e,0x80); //禁止寫(xiě)入
326 2 }
327 1
328 1 }
329
330 /***********ds18b20子程序*************************/
331
332 /***********ds18b20延遲子函數(shù)（晶振12MHz ）*******/
333
334 void delay_18B20(unsigned int i)
335 {
336 1 while(i--);
337 1 }
338
339 /**********ds18b20初始化函數(shù)**********************/
340
341 void Init_DS18B20(void)
342 {
343 1 unsigned char x=0;
344 1 DQ = 1; //DQ復(fù)位
345 1 delay_18B20(8); //稍做延時(shí)
346 1 DQ = 0; //單片機(jī)將DQ拉低
347 1 delay_18B20(80); //精確延時(shí) 大于 480us
348 1 DQ = 1; //拉高總線
349 1 delay_18B20(14);
350 1 x=DQ; //稍做延時(shí)后 如果x=0則初始化成功 x=1則初始化失敗
351 1 delay_18B20(20);
352 1 }
353
354 /***********ds18b20讀一個(gè)字節(jié)**************/
355
356 unsigned char ReadOneChar(void)
357 {
358 1 uchar i=0;
359 1 uchar dat = 0;
360 1 for (i=8;i>0;i--)
361 1 {
362 2 DQ = 0; // 給脈沖信號(hào)
363 2 dat>>=1;
C51 COMPILER V8.02 DS1302 07/12/2008 21:49:01 PAGE 7
364 2 DQ = 1; // 給脈沖信號(hào)
365 2 if(DQ)
366 2 dat|=0x80;
367 2 delay_18B20(4);
368 2 }
369 1 return(dat);
370 1 }
371
372 /*************ds18b20寫(xiě)一個(gè)字節(jié)****************/
373
374 void WriteOneChar(uchar dat)
375 {
376 1 unsigned char i=0;
377 1 for (i=8; i>0; i--)
378 1 {
379 2 DQ = 0;
380 2 DQ = dat&0x01;
381 2 delay_18B20(5);
382 2 DQ = 1;
383 2 dat>>=1;
384 2 }
385 1 }
386
387 /**************讀取ds18b20當(dāng)前溫度************/
388
389 void ReadTemp(void)
390 {
391 1 unsigned char a=0;
392 1 unsigned char b=0;
393 1 unsigned char t=0;
394 1
395 1 Init_DS18B20();
396 1 WriteOneChar(0xCC); // 跳過(guò)讀序號(hào)列號(hào)的操作
397 1 WriteOneChar(0x44); // 啟動(dòng)溫度轉(zhuǎn)換
398 1
399 1 delay_18B20(100); // this message is wery important
400 1
401 1 Init_DS18B20();
402 1 WriteOneChar(0xCC); //跳過(guò)讀序號(hào)列號(hào)的操作
403 1 WriteOneChar(0xBE); //讀取溫度寄存器等（共可讀9個(gè)寄存器） 前兩個(gè)就是溫度
404 1
405 1 delay_18B20(100);
406 1
407 1 a=ReadOneChar(); //讀取溫度值低位
408 1 b=ReadOneChar(); //讀取溫度值高位
409 1 temp_value=b<<4;
410 1 temp_value+=(a&0xf0)>>4;
411 1 }
412 void temp_to_str() //溫度數(shù)據(jù)轉(zhuǎn)換成液晶字符顯示
413 {
414 1 TempBuffer[0]=temp_value/10+'0'; //十位
415 1 TempBuffer[1]=temp_value%10+'0'; //個(gè)位
416 1 TempBuffer[2]=0xdf; //溫度符號(hào)
417 1 TempBuffer[3]='C';
418 1 TempBuffer[4]='\0';
419 1 }
420 void Delay1ms(unsigned int count)
421 {
422 1 unsigned int i,j;
423 1 for(i=0;i<count;i++)
424 1 for(j=0;j<120;j++);
425 1 }
C51 COMPILER V8.02 DS1302 07/12/2008 21:49:01 PAGE 8
426
427 /*延時(shí)子程序*/
428 void mdelay(uint delay)
429 { uint i;
430 1 for(;delay>0;delay--)
431 1 {for(i=0;i<62;i++) //1ms延時(shí).
432 2 {;}
433 2 }
434 1 }
435
436
437 void outkey() //跳出調(diào)整模式,返回默認(rèn)顯示
438 { uchar Second;
439 1 if(out==0)
440 1 { mdelay(8);
441 2 count=0;
442 2 hide_sec=0,hide_min=0,hide_hour=0,hide_day=0,hide_week=0,hide_month=0,hide_year=0;
443 2 Second=Read1302(DS1302_SECOND);
444 2 Write1302(0x8e,0x00); //寫(xiě)入允許
445 2 Write1302(0x80,Second&0x7f);
446 2 Write1302(0x8E,0x80); //禁止寫(xiě)入
447 2 done=0;
448 2 adjusttick=0;
449 2 while(out==0);
450 2
451 2 }
452 1 }
453 //////////////////////////////////////////////////////////////////////////////////////////////////////////
-//
454 void Upkey()//升序按鍵
455 {
456 1 Up=1;
457 1 if(Up==0)
458 1 {
459 2 mdelay(8);
460 2 switch(count)
461 2 {case 1:
462 3 if(done==1)
463 3 {
464 4 temp=Read1302(DS1302_SECOND); //讀取秒數(shù)
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