📄 i2c.lst
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237 3
238 3 I2CStop();
239 3 break;
240 3
241 3 case 14: /* write to day register */
242 3 RTC_Data = _getkey();
243 3 I2CStart();
244 3 if (I2CMasterWrite(Dev_Add))
245 3 I2CStop();
246 3
247 3 if (I2CMasterWrite(DOW_Add_Reg))
248 3 I2CStop();
249 3
250 3 if (I2CMasterWrite(RTC_Data))
251 3 I2CStop();
252 3
253 3 I2CStop();
254 3 break;
255 3
256 3 case 15: /* write to date register */
257 3 RTC_Data = _getkey();
C51 COMPILER V5.50, I2C 02/12/03 05:12:36 PAGE 5
258 3 I2CStart();
259 3 if (I2CMasterWrite(Dev_Add))
260 3 I2CStop();
261 3
262 3 if (I2CMasterWrite(DOM_Add_Reg))
263 3 I2CStop();
264 3
265 3 if (I2CMasterWrite(RTC_Data))
266 3 I2CStop();
267 3
268 3 I2CStop();
269 3 break;
270 3
271 3 case 16: /* write to month register */
272 3 RTC_Data = _getkey();
273 3 I2CStart();
274 3 if (I2CMasterWrite(Dev_Add))
275 3 I2CStop();
276 3
277 3 if (I2CMasterWrite(Mon_Add_Reg))
278 3 I2CStop();
279 3
280 3 if (I2CMasterWrite(RTC_Data))
281 3 I2CStop();
282 3
283 3 I2CStop();
284 3 break;
285 3
286 3 case 17: /* write to year register */
287 3 RTC_Data = _getkey();
288 3 I2CStart();
289 3 if (I2CMasterWrite(Dev_Add))
290 3 I2CStop();
291 3
292 3 if (I2CMasterWrite(Yr_Add_Reg))
293 3 I2CStop();
294 3
295 3 if (I2CMasterWrite(RTC_Data))
296 3 I2CStop();
297 3
298 3 I2CStop();
299 3 break;
300 3
301 3 case 18: /* write to control register */
302 3 RTC_Data = _getkey();
303 3 I2CStart();
304 3 if (I2CMasterWrite(Dev_Add))
305 3 I2CStop();
306 3
307 3
308 3 if (I2CMasterWrite(Cont_Add_Reg))
309 3 I2CStop();
310 3
311 3 if (I2CMasterWrite(RTC_Data))
312 3 I2CStop();
313 3
314 3 I2CStop();
315 3 break;
316 3
317 3 case 19: /* write to watchdog register */
318 3 RTC_Data = _getkey();
319 3 I2CStart();
320 3 if (I2CMasterWrite(Dev_Add))
321 3 I2CStop();
322 3
323 3 if (I2CMasterWrite(Wdog_Add_Reg))
C51 COMPILER V5.50, I2C 02/12/03 05:12:36 PAGE 6
324 3 I2CStop();
325 3
326 3 if (I2CMasterWrite(RTC_Data))
327 3 I2CStop();
328 3
329 3 I2CStop();
330 3 break;
331 3
332 3
333 3 case 20: /* write to alarm month register */
334 3 RTC_Data = _getkey();
335 3 I2CStart();
336 3 if (I2CMasterWrite(Dev_Add))
337 3 I2CStop();
338 3
339 3 if (I2CMasterWrite(Al_Mon_Add_Reg))
340 3 I2CStop();
341 3
342 3 if (I2CMasterWrite(RTC_Data))
343 3 I2CStop();
344 3
345 3 I2CStop();
346 3 break;
347 3
348 3
349 3 case 21: /* write to alarm date register */
350 3 RTC_Data = _getkey();
351 3 I2CStart();
352 3 if (I2CMasterWrite(Dev_Add))
353 3 I2CStop();
354 3
355 3 if (I2CMasterWrite(Al_DOM_Add_Reg))
356 3 I2CStop();
357 3
358 3 if (I2CMasterWrite(RTC_Data))
359 3 I2CStop();
360 3
361 3 I2CStop();
362 3 break;
363 3
364 3 case 22: /* write to alarm hour register */
365 3 RTC_Data = _getkey();
366 3 I2CStart();
367 3 if (I2CMasterWrite(Dev_Add))
368 3 I2CStop();
369 3
370 3 if (I2CMasterWrite(Al_Hr_Add_Reg))
371 3 I2CStop();
372 3
373 3 if (I2CMasterWrite(RTC_Data))
374 3 I2CStop();
375 3
376 3 I2CStop();
377 3 break;
378 3
379 3 case 23: /* write to alarm minute register */
380 3 RTC_Data = _getkey();
381 3 I2CStart();
382 3 if (I2CMasterWrite(Dev_Add))
383 3 I2CStop();
384 3
385 3 if (I2CMasterWrite(Al_Min_Add_Reg))
386 3 I2CStop();
387 3
388 3 if (I2CMasterWrite(RTC_Data))
389 3 I2CStop();
C51 COMPILER V5.50, I2C 02/12/03 05:12:36 PAGE 7
390 3
391 3 I2CStop();
392 3 break;
393 3
394 3 case 24: /* write to alarm second register */
395 3 RTC_Data = _getkey();
396 3 I2CStart();
397 3 if (I2CMasterWrite(Dev_Add))
398 3 I2CStop();
399 3
400 3 if (I2CMasterWrite(Al_Sec_Add_Reg))
401 3 I2CStop();
402 3
403 3 if (I2CMasterWrite(RTC_Data))
404 3 I2CStop();
405 3
406 3 I2CStop();
407 3 break;
408 3
409 3 case 25: /* write OF bit to the flags register */
410 3 RTC_Data = _getkey();
411 3 I2CStart();
412 3 if (I2CMasterWrite(Dev_Add))
413 3 I2CStop();
414 3
415 3 if (I2CMasterWrite(Flags_Add_Reg))
416 3 I2CStop();
417 3
418 3 if (I2CMasterWrite(RTC_Data))
419 3 I2CStop();
420 3
421 3 I2CStop();
422 3 break;
423 3
424 3 case 26: /* read the flags register */
425 3 I2CStart();
426 3 if (I2CMasterWrite(Dev_Add))
427 3 I2CStop();
428 3
429 3 if (I2CMasterWrite(Flags_Add_Reg))
430 3 I2CStop();
431 3
432 3 I2CStart();
433 3 if (I2CMasterWrite(Dev_Add+1))
434 3 I2CStop();
435 3
436 3 Flags_Reg = I2CMasterRead(1);
437 3 putchar (Flags_Reg);
438 3 I2CStop();
439 3 break;
440 3
441 3
442 3 /******************************************************************************/
443 3 /* */
444 3 /* case 27-29 are not used (reserved registers) */
445 3 /* */
446 3 /******************************************************************************/
447 3
448 3
449 3 case 30: /* write to SQW register */
450 3 RTC_Data = _getkey();
451 3 I2CStart();
452 3 if (I2CMasterWrite(Dev_Add))
453 3 I2CStop();
454 3
455 3 if (I2CMasterWrite(SQW_Add_Reg))
C51 COMPILER V5.50, I2C 02/12/03 05:12:36 PAGE 8
456 3 I2CStop();
457 3
458 3 if (I2CMasterWrite(RTC_Data))
459 3 I2CStop();
460 3
461 3 I2CStop();
462 3 break;
463 3
464 3 case 31: /* write to Tamper1 register */
465 3 RTC_Data = _getkey();
466 3 I2CStart();
467 3 if (I2CMasterWrite(Dev_Add))
468 3 I2CStop();
469 3
470 3 if (I2CMasterWrite(Tamper1_Add_Reg))
471 3 I2CStop();
472 3
473 3 if (I2CMasterWrite(RTC_Data))
474 3 I2CStop();
475 3
476 3 I2CStop();
477 3 break;
478 3
479 3 case 32: /* write to Tamper2 register */
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