📄 at45db161d.lst
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237 1 spi_csoff();//SPI_CS = 1;
238 1 SPI_CLK = 1;
239 1 //需要延迟3-6ms
C51 COMPILER V7.09 AT45DB161D 09/16/2008 09:20:10 PAGE 5
240 1 delayMs(6);
241 1 }
242
243 /**3+12+9*/
244 void page_erase(Uint16 pageAddr)
245 {
246 1 Byte addr[3];
247 1 Byte i;
248 1 for (i=0; i<3; i++)
249 1 addr[i] = 0;
250 1 pageAddr <<= 1;
251 1 spi_csoff();//SPI_CS = 1;
252 1
253 1 addr[0] = ((Byte*)&pageAddr)[0];
254 1 addr[1] = ((Byte*)&pageAddr)[1];
255 1 spi_cson();//SPI_CS=0;
256 1 spi_write(ERASE_PAGE);
257 1 for (i=0; i<3; i++)
258 1 spi_write(addr[i]);
259 1 spi_csoff();//SPI_CS = 1;
260 1 SPI_CLK = 1;
261 1 //需要延迟15-35ms
262 1 }
263
264 /***3+9+12***/
265 void block_erase(Uint16 BlockAddr)
266 {
267 1 Byte addr[3];
268 1 Byte i;
269 1 delayMs(10000);
270 1 for (i=0; i<3; i++)
271 1 addr[i] = 0;
272 1 BlockAddr <<= 4;
273 1 spi_csoff();//SPI_CS = 1;
274 1
275 1 addr[0] = ((Byte*)&BlockAddr)[0];
276 1 addr[1] = ((Byte*)&BlockAddr)[1];
277 1 spi_cson();//SPI_CS=0;
278 1 spi_write(ERASE_BLOCK);
279 1 for (i=0; i<3; i++)
280 1 spi_write(addr[i]);
281 1 spi_csoff();//SPI_CS = 1;
282 1 SPI_CLK = 1;
283 1 //需要延迟45-100ms
284 1 delayMs(3000);
285 1 }
286
287
288 void chip_erase()
289 {
290 1 }
291 /***************************************
292 sectorAddr:1-15 1-15个sector
293 16 0a
294 17 0b
295 *****************************************/
296 void sector_erase(Byte sectorAddr)
297 {
298 1 Byte addr[3];
299 1 Byte i;
300 1 for (i=0; i<3; i++)
301 1 addr[i] = 0;
C51 COMPILER V7.09 AT45DB161D 09/16/2008 09:20:10 PAGE 6
302 1
303 1 delayMs(10000);
304 1 if (17 == sectorAddr)
305 1 {
306 2 addr[1] = 0x10;
307 2 }
308 1 else if (sectorAddr < 16)
309 1 {
310 2 sectorAddr <<= 1;
311 2 addr[0] = sectorAddr;
312 2 }
313 1
314 1 spi_csoff();//SPI_CS=0;
315 1 spi_write(ERASE_SECTOR);
316 1 for (i=0; i<3; i++)
317 1 spi_write(addr[i]);
318 1 spi_csoff();//SPI_CS = 1;
319 1 SPI_CLK = 1;
320 1 //需要延迟1.5-6s
321 1 delayMs(10000);
322 1 }
323
324 /********3+12+9***********/
325 void program_page_throughbuf(Byte bufNum, Uint16 bufAddr, Uint16 pageAddr, Uint16 nLen, Byte* pBuf)
326 {
327 1 Byte addr[3];
328 1 Byte command;
329 1 Uint16 i;
330 1 spi_csoff();//SPI_CS = 1;
331 1
332 1 for (i=0; i<3; i++)
333 1 addr[i] = 0;
334 1 pageAddr <<= 1;
335 1 addr[0] = ((Byte*)&pageAddr)[0];
336 1 addr[1] = ((Byte*)&pageAddr)[1]+((Byte*)&bufAddr)[0];
337 1 addr[2] = ((Byte*)&bufAddr)[1];
338 1 if (1 == bufNum)
339 1 command = PROGRAM_PAGE_BYBUF1;
340 1 else
341 1 command = PROGRAM_PAGE_BYBUF2;
342 1
343 1 spi_cson();//SPI_CS = 0;
344 1 spi_write(command);
345 1 for (i=0; i<3; i++)
346 1 spi_write(addr[i]);
347 1 for (i=0; i<nLen; i++)
348 1 spi_write(pBuf[i]);
349 1 spi_csoff();//SPI_CS = 1;
350 1 SPI_CLK = 1;
351 1 //需要延迟17-40ms
352 1 delayMs(40);
353 1 }
354
355 /*********编程1页用四段缓冲*************/
356 /*每段缓冲的大小为128Byte
357 /*buffer起始地址为0
358 /****************************************/
359 void program_onepage_throughbuf(Byte bufNum, Uint16 pageAddr, Byte* pBuf1, Byte* pBuf2, Byte* pBuf3, Byte*
- pBuf4)
360 {
361 1 Byte addr[3];
362 1 Byte command;
C51 COMPILER V7.09 AT45DB161D 09/16/2008 09:20:10 PAGE 7
363 1 Uint16 i;
364 1 spi_csoff();//SPI_CS = 1;
365 1
366 1 for (i=0; i<3; i++)
367 1 addr[i] = 0;
368 1 pageAddr <<= 1;
369 1 addr[0] = ((Byte*)&pageAddr)[0];
370 1 addr[1] = ((Byte*)&pageAddr)[1];
371 1 addr[2] = 0;
372 1 if (1 == bufNum)
373 1 command = PROGRAM_PAGE_BYBUF1;
374 1 else
375 1 command = PROGRAM_PAGE_BYBUF2;
376 1
377 1 spi_cson();//SPI_CS = 0;
378 1 spi_write(command);
379 1 for (i=0; i<3; i++)
380 1 spi_write(addr[i]);
381 1 for (i=0; i<128; i++)
382 1 spi_write(pBuf1[i]);
383 1 for (i=0; i<128; i++)
384 1 spi_write(pBuf2[i]);
385 1 for (i=0; i<128; i++)
386 1 spi_write(pBuf3[i]);
387 1 for (i=0; i<128; i++)
388 1 spi_write(pBuf4[i]);
389 1 spi_csoff();//SPI_CS = 1;
390 1 SPI_CLK = 1;
391 1 //需要延迟17-40ms
392 1 delayMs(40);
393 1 }
394
395 Byte read_status_register()
396 {
397 1 Byte nValue;
398 1 nValue = 0;
399 1 spi_cson();//SPI_CS = 0;
400 1 spi_write(READ_STATUS_REG);
401 1 nValue = spi_read();
402 1 spi_csoff();//SPI_CS = 1;
403 1 SPI_CLK = 1;
404 1 return nValue;
405 1 }
406
407 void Program_configure_reg()
408 {
409 1 spi_csoff();//SPI_CS = 1;
410 1 spi_cson();//SPI_CS = 0;
411 1 spi_write(0x3d);
412 1 spi_write(0x2a);
413 1 spi_write(0x80);
414 1 spi_write(0xa6);
415 1 spi_csoff();//SPI_CS = 1;
416 1 SPI_CLK = 1;
417 1 //需要延迟3-6ms
418 1 delayMs(6);
419 1 }
420
421 /*******************
422 *读取ID号
423 *返回值：OK表示值吻合
424 KO表示不对
C51 COMPILER V7.09 AT45DB161D 09/16/2008 09:20:10 PAGE 8
425 *******************/
426 Byte read_deviceid()
427 {
428 1 Byte id[4];
429 1 Byte i;
430 1 id[0] = 0;
431 1 id[1] = 0;
432 1 id[2] = 0;
433 1 id[3] = 0;
434 1 spi_cson();//SPI_CS = 0;
435 1 spi_write(READ_DEVICEID);
436 1 for (i=0; i<4; i++)
437 1 {
438 2 id[i] = spi_read();
439 2 }
440 1
441 1 spi_csoff();//SPI_CS = 1;
442 1 SPI_CLK = 1;
443 1 if ((id[0] == MANU_ID) && (id[1] == DEVICE_ID1) &&
444 1 (id[2] == DEVICE_ID2) && (id[3] == DEVICE_ID3))
445 1 return OK;
446 1 else
447 1 return KO;
448 1 }
449
450
451 void check_toready()
452 {
453 1 Byte nValue;
454 1 nValue = 0;
455 1 spi_cson();//SPI_CS = 0;
456 1 spi_write(READ_STATUS_REG);
457 1 nValue = spi_read();
458 1 while (0 == (nValue & 0x80))
459 1 {
460 2 nValue = spi_read();
461 2 }
462 1 spi_csoff();//SPI_CS = 1;
463 1 SPI_CLK = 1;
464 1 }
465
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 2580 ----
CONSTANT SIZE = ---- ----
XDATA SIZE = ---- 128
PDATA SIZE = ---- ----
DATA SIZE = ---- ----
IDATA SIZE = ---- ----
BIT SIZE = ---- ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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