Last modified by Edwin Chen on 2022/11/22 09:38
<
From version < 27.1
edited by Edwin Chen
on 2022/11/22 09:38
To version < 19.2 >
edited by Xiaoling
on 2022/11/15 08:47
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Edwin
1 +XWiki.Xiaoling
Content
... ... @@ -1,4 +1,4 @@
1 -**Table of Contents： **
1 +**Contents： **
2 2  
3 3  {{toc/}}
4 4  
... ... @@ -5,45 +5,49 @@
5 5  
6 6  
7 7  
8 -= 1. Overview =
8 += **1. Overview** =
9 9  
10 10  (((
11 11  
12 12  
13 13  Shipped LT-22222-L is base on LoRaWAN protocol. We also develop a open source Point to Point LoRa protocol for LT-22222-L. The source code and hex file can be found at:
14 +)))
14 14  
15 -* [[Source Code>>https://github.com/dragino/LT-22222-L]].
16 -* [[Firmware>>https://github.com/dragino/LT-22222-L/releases]].
16 +(((
17 +[[Point to Point Software for LT-22222-L>>https://github.com/dragino/LT-22222-L]].
17 17  )))
18 18  
19 -= 2. Features for this firmware =
20 20  
21 -== 2.1  Point To Point ==
21 += **2. Features for this firmware** =
22 22  
23 -=== 2.1.1 Overview ===
23 +== **2.1  Point To Point** ==
24 24  
25 +=== **2.1.1 Overview** ===
25 25  
27 +
26 26  [[image:image-20220602111219-1.png||height="472" width="972"]]
27 27  
28 28  
29 -=== 2.2.2 Configure ===
31 +=== **2.2.2 Configure** ===
30 30  
31 31  
32 -(% border="1" style="background-color:#f7faff; color:black; width:360px" %)
33 -|=(% style="width: 179px;" %)**A's configuration**|=(% style="width: 177px;" %)**B's configuration**
34 -|(% style="width:179px" %)AT+GROUPMOD=0|(% style="width:177px" %)AT+GROUPMOD=0
35 -|(% style="width:179px" %)AT+TXCHS=868700000|(% style="width:177px" %)AT+TXCHS=869000000
36 -|(% style="width:179px" %)AT+RXCHS=869000000|(% style="width:177px" %)AT+RXCHS=868700000
37 -|(% style="width:179px" %)AT+TRIG1=2,50|(% style="width:177px" %)AT+TRIG1=2,50
38 -|(% style="width:179px" %)AT+TRIG2=2,50|(% style="width:177px" %)AT+TRIG2=2,50
39 -|(% style="width:179px" %)AT+DI1TODO1=2|(% style="width:177px" %)AT+DI1TODO1=2
40 -|(% style="width:179px" %)AT+DI1TORO1=2|(% style="width:177px" %)AT+DI1TORO1=2
41 -|(% style="width:179px" %)AT+DI2TODO2=2 |(% style="width:177px" %)AT+DI2TODO2=2
42 -|(% style="width:179px" %)AT+DI2TORO2=2|(% style="width:177px" %)AT+DI2TORO2=2
34 +(% border="1" style="background-color:#f7faff; color:black; width:500px" %)
35 +|=**A's configuration**|=**B's configuration**
36 +|AT+GROUPMOD=0|AT+GROUPMOD=0
37 +|AT+TXCHS=868700000|AT+TXCHS=869000000
38 +|AT+RXCHS=869000000|AT+RXCHS=868700000
39 +|AT+TRIG1=2,50|AT+TRIG1=2,50
40 +|AT+TRIG2=2,50|AT+TRIG2=2,50
41 +|AT+DI1TODO1=2|AT+DI1TODO1=2
42 +|AT+DI1TORO1=2|AT+DI1TORO1=2
43 +|AT+DI2TODO2=2 |AT+DI2TODO2=2
44 +|AT+DI2TORO2=2|AT+DI2TORO2=2
43 43  
44 -=== 2.2.3 Serial port display ===
45 45  
46 46  
48 +=== **2.2.3 Serial port display** ===
49 +
50 +
47 47  (% class="wikigeneratedid" %)
48 48  [[image:image-20220602111219-2.png]]
49 49  
... ... @@ -56,15 +56,15 @@
56 56  If the sender does not get the ACK reply from the receiver, it will retransmit up to 4 times, each interval is 6 seconds, and the UplinkCounter of the retransmission will not increase.
57 57  
58 58  
59 -== 2.2  Point To Mult-Point ==
63 +== **2.2  Point To Mult-Point ** ==
60 60  
61 -=== 2.2.1 Overview ===
65 +=== **2.2.1 Overview** ===
62 62  
63 63  
64 64  [[image:1654152390874-192.png]]
65 65  
66 66  
67 -=== 2.2.2  Configure ===
71 +=== **2.2.2  Configure** ===
68 68  
69 69  
70 70  (% style="color:blue" %)**Configuration of the TX group:**
... ... @@ -106,7 +106,7 @@
106 106  AT+RXCHS=868700000
107 107  
108 108  
109 -=== 2.2.3 Serial port display ===
113 +=== **2.2.3 Serial port display** ===
110 110  
111 111  
112 112  [[image:image-20220602144747-1.png]]
... ... @@ -114,13 +114,12 @@
114 114  
115 115  [[image:image-20220602144747-2.png]]
116 116  
117 -
118 118  (((
119 119  If the TX group does not receive all the ACK replies from the RX group, it will retransmit up to 4 times, each time interval is 30 seconds, and the retransmission UplinkCounter will not increase.
120 120  )))
121 121  
122 122  
123 -== 2.3 AT command ==
126 +== **2.3 AT command** ==
124 124  
125 125  
126 126  (((
... ... @@ -222,8 +222,9 @@
222 222  )))
223 223  
224 224  
228 +
225 225  (((
226 -(% style="color:blue" %)**Example 1:**
230 +(% style="color:#4f81bd" %)**Example 1:**
227 227  )))
228 228  
229 229  (((
... ... @@ -231,6 +231,7 @@
231 231  )))
232 232  
233 233  
238 +
234 234  (((
235 235  (% style="color:blue" %)**Example 2: **
236 236  )))
... ... @@ -244,23 +244,23 @@
244 244  )))
245 245  
246 246  (((
247 -**a=0:** falling edge;
252 +a=0: falling edge;
248 248  )))
249 249  
250 250  (((
251 -**a=1: **rising edge;
256 +a=1: rising edge;
252 252  )))
253 253  
254 254  (((
255 -**a=2:** falling edge or rising edge;
260 +a=2: falling edge or rising edge;
256 256  )))
257 257  
258 258  (((
259 -**b:**  triggering time in milliseconds.
264 +b:  triggering time in milliseconds.
260 260  )))
261 261  
262 262  (((
263 -**AT+TRIGx=2,50**  Falling edge or rising edge trigger, and the trigger time exceeds 50ms.
268 +AT+TRIGx=2,50  Falling edge or rising edge trigger, and the trigger time exceeds 50ms.
264 264  )))
265 265  
266 266  
... ... @@ -288,12 +288,12 @@
288 288  
289 289  )))
290 290  
291 -(% border="1" style="background-color:#f7faff; color:black; width:690px" %)
296 +(% border="1" style="background-color:#f7faff; color:black; width:706px" %)
292 292  |=(% style="width: 102px;" %)(((
293 293  Maps value
294 294  )))|=(% style="width: 331px;" %)(((
295 295  DIx to DOx
296 -)))|=(% style="width: 251px;" %)(((
301 +)))|=(% style="width: 268px;" %)(((
297 297  DIx to ROx
298 298  )))
299 299  |(% style="width:102px" %)(((
... ... @@ -300,7 +300,7 @@
300 300  0
301 301  )))|(% style="width:331px" %)(((
302 302  No Action
303 -)))|(% style="width:251px" %)(((
308 +)))|(% style="width:268px" %)(((
304 304  No Action
305 305  )))
306 306  |(% style="width:102px" %)(((
... ... @@ -307,7 +307,7 @@
307 307  1
308 308  )))|(% style="width:331px" %)(((
309 309  If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level
310 -)))|(% style="width:251px" %)(((
315 +)))|(% style="width:268px" %)(((
311 311  (((
312 312  If DIx is high, control ROx to close,
313 313  )))
... ... @@ -320,7 +320,7 @@
320 320  2
321 321  )))|(% style="width:331px" %)(((
322 322  If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level
323 -)))|(% style="width:251px" %)(((
328 +)))|(% style="width:268px" %)(((
324 324  (((
325 325  If DIx is high, control ROx to open,
326 326  )))
... ... @@ -333,13 +333,11 @@
333 333  3
334 334  )))|(% style="width:331px" %)(((
335 335  DOx state flip
336 -)))|(% style="width:251px" %)(((
341 +)))|(% style="width:268px" %)(((
337 337  ROx state flip
338 338  )))
339 339  
340 340  (((
341 -
342 -
343 343  (% style="color:blue" %)**Example 4: **
344 344  )))
345 345  
... ... @@ -351,10 +351,12 @@
351 351  **AT+GROUPMOD=0,aa**  Set the TX group that controls the number of aa (The maximum value of aa is 8)
352 352  )))
353 353  
357 +
354 354  (((
355 355  **AT+GROUPMOD=1,bb**  Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8)
356 356  )))
357 357  
362 +
358 358  (((
359 359  **AT+GROUPMOD=0,2**  Set to control the TX group of the two RX groups
360 360  )))
... ... @@ -368,192 +368,183 @@
368 368  )))
369 369  
370 370  
371 -=== 2.3.1 TRIG command is configured in the transmit LT. (LT1)(Since firmware 1.3.2) ===
376 +=== 2.3.1 TRIG command is configured in the transmit LT. (LT1)(Since firmware 1.3) ===
372 372  
373 373  
374 -**AT+TRIGx=a          **Trigger transmit directly without triggering time
379 +**AT+TRIGx=a     **Trigger transmit directly without triggering time
375 375  
376 -**AT+TRIGx=a,b**  Trigger transmit with triggering time threshold
381 +**AT+TRIGx=a,b**  Trigger transmit with triggering time threshold
377 377  
378 -**AT+TRIGx=a,b,c    **Trigger transmit with triggering time threshold, and continue to transmit every xx seconds if DI status no change.
383 +**AT+TRIGx=a,b,c **Trigger transmit with triggering time threshold, and continue to transmit every xx seconds if DI status no change.
379 379  
380 380  
381 -**a=0:** falling edge;
386 +a=0: falling edge;
382 382  
383 -**a=1:** rising edge;
388 +a=1: rising edge;
384 384  
385 -**a=2:** falling edge or rising edge;
390 +a=2: falling edge or rising edge;
386 386  
387 -**b:**  triggering time in milliseconds.
392 +b:  triggering time in milliseconds.
388 388  
389 -**c:** transmit interval
394 +c: transmit interval
390 390  
391 391  
392 -(% style="color:blue" %)**Use Case 1**(%%):  Once the DI1 port status change ( either from low to high or high to low, LT1 sends a trigger to LT-2)
397 +**(% style="color:blue" %)Use Case 1**(%%): Once the DI1 port status change ( either from low to high or high to low, LT1 sends a trigger to LT-2)
393 393  
394 -**Command:**
399 +Command:
395 395  
396 -**AT+TRIG1=2,50**  Falling edge or rising edge trigger, and the trigger time should exceed 50ms.
401 +AT+TRIG1=2,50  Falling edge or rising edge trigger, and the trigger time should exceed 50ms.
397 397  
398 398  
399 -(% style="color:blue" %)**Use Case 2:  **(%%)Sync LT2 RO / DO status with LT1 every minute.
404 +**(% style="color:blue" %)Use Case 2: **(%%)Sync LT2 RO / DO status with LT1 every minute.
400 400  
401 -**Command:**
406 +Command:
402 402  
403 -**AT+TRIG2=2,50,60**  Once there is falling edge or rising edge on DI2 of LT1, LT1 will transmit trigger to LT2 and LT2 can sync the status of RO/DO. After power off, power on, LT1 will send trigger without falling/rising edge, so the DI changes during power off will be sync as well.
408 +AT+TRIG2=2,50,60 Once there is falling edge or rising edge on DI2 of LT1, LT1 will transmit trigger to LT2 and LT2 can sync the status of RO/DO.
404 404  
405 405  
406 -=== 2.3.2 RO/DO is configured in the transmit LT. (LT1) and receiver LT (LT2)(Since firmware 1.3.2) ===
411 +=== 2.3.2 RO/DO is configured in the receiver LT (LT2)(Since firmware 1.3) ===
407 407  
413 +AT+DI1TODO1= maps value[,latch time]
408 408  
409 -(% style="color:red" %)**Notice:**(%%)** **LT1 **MUST** have a AT+DIxTODOx commands to send out the trigger. If LT2 has AT+DIxTOROx configured, LT2 will follow its configured and ignore LT1's AT+DIxTOROx settings.
415 +AT+DI1TORO1= maps value[,latch time]
410 410  
417 +AT+DI2TODO2= maps value[,latch time]
411 411  
412 -AT+DI1TODO1= maps value[,latch time, timeout_state]
419 +AT+DI2TORO2= maps value[,latch time]
413 413  
414 -AT+DI1TORO1= maps value[,latch time, timeout_state]
415 415  
416 -AT+DI2TODO2= maps value[,latch time, timeout_state]
417 -
418 -AT+DI2TORO2= maps value[,latch time, timeout_state]
419 -
420 -
421 -(% border="1" style="background-color:#f7faff; color:black; width:774px" %)
422 -|(% style="width:105px" %) **Maps value**|(% style="width:415px" %)**DIx to DOx**|(% style="width:249px" %)**DIx to ROx**
423 -|(% style="width:105px" %)0|(% style="width:415px" %)No Action|(% style="width:249px" %)No Action
424 -|(% style="width:105px" %)1|(% style="width:415px" %)If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level|(% style="width:249px" %)(((
422 +(% border="1" style="background-color:#f7faff; color:black; width:706px" %)
423 +| **Maps value**|DIx to DOx|DIx to ROx
424 +|0|No Action|No Action
425 +|1|If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level|(((
425 425  If DIx is high, control ROx to close,
426 426  
427 427  if DIx is low, control ROx to open
428 428  )))
429 -|(% style="width:105px" %)2|(% style="width:415px" %)If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level|(% style="width:249px" %)(((
430 +|2|If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level|(((
430 430  If DIx is high, control ROx to open,
431 431  
432 432  if DIx is low, control ROx to close
433 433  )))
434 -|(% style="width:105px" %)3|(% style="width:415px" %)DOx state flip|(% style="width:249px" %)ROx state flip
435 +|3|DOx state flip|ROx state flip
435 435  
436 -**latch time**, if latch time is defined, DO or RO will go back to the original status after latch time, if there is a new trigger comes, the LT2 will use the new latch time settings and ignore the old one.
437 +latch time, if latch time is defined, DO or RO will go back to the original status after latch time, if there is a new trigger comes, the LT2 will use the new latch time settings and ignore the old one.
437 437  
438 438  
439 -**Timeout_State**:
440 +**(% style="color:blue" %)Case1**:
440 440  
441 -0: **No change** after timeout
442 +AT+DI1TODO1=1 ~/~/ LT2 DO1 will follow LT1 DI1 trigger command, if DI1 of LT1 is trigger high, DO1 of LT2 will output low, if DI1 of LT1 is trigger low, DO2 of LT2 will output high.
442 442  
443 -1: Change to **DO:0** or **RO: Open** after timeout
444 444  
445 -2: Change to **DO:1** or **RO: Close** after timeout
445 +**(% style="color:blue" %)Case2**:
446 446  
447 -3: Change **back to state** before last trigger arrive.
447 +AT+DI1TODO1=1,60 ~/~/ LT2 DO1 will follow LT1 DI1 trigger command, DO1 will keep the status 60 seconds and then go back to original state.
448 448  
449 449  
450 -(% style="color:blue" %)**Case1**:
451 -
452 -AT+DI1TODO1=1  ~/~/ LT2 DO1 will follow LT1 DI1 trigger command, if DI1 of LT1 is trigger high, DO1 of LT2 will output low, if DI1 of LT1 is trigger low, DO2 of LT2 will output high.
453 -
454 -
455 -(% style="color:blue" %)**Case2**:
456 -
457 -AT+DI1TODO1=1,60,1  ~/~/ LT2 DO1 will follow LT1 DI1 trigger command, DO1 will keep the status 60 seconds and then change to open.
458 -
459 -
460 460  === 2.3.3 Save the RO/DO status during power off(Since firmware 1.3) ===
461 461  
462 462  
463 463  Enable/Disbale retain Digital Output/Relay Output after power off / Power On
464 464  
465 -**AT+DOROSAVE=0**  ~/~/ Disable Retain after power off/on
455 +AT+DOROSAVE=0 ~/~/ Disable Retain after power off/on
466 466  
467 -**AT+DOROSAVE=1**  ~/~/ Enable Retain after power off/on
457 +AT+DOROSAVE=1 ~/~/ Enable Retain after power off/on
468 468  
469 -**AT+DOROSAVE=2,a,b,c,d**  ~/~/ set DO/RO port to default state after power on.
459 +AT+DOROSAVE=2,a,b,c,d ~/~/ set DO/RO port to default state after power on.
470 470  
471 -**a: **for DO1
461 +a: for DO1
472 472  
473 -**b:** for DO2
463 +b: for DO2
474 474  
475 -**c: **for RO1
465 +c: for RO1
476 476  
477 -**d:** for RO2.
467 +d: for RO2.
478 478  
469 +Example:
479 479  
480 -**Example:**
471 +AT+DOROSAVE=2,0,0,0,1 ~/~/ Set DO1/DO2 to Low, RO1 to open after power on , set RO2 to close after power on.
481 481  
482 -AT+DOROSAVE=2,0,0,0,1  ~/~/ Set DO1/DO2 to Low, RO1 to open after power on , set RO2 to close after power on.
483 483  
484 -
485 485  === 2.3.4 Control Sleep status.(Since firmware 1.3) ===
486 486  
487 -
488 488  DI2 can be used to set LT into sleep mode.
489 489  
490 -**AT+DI2SLEEP=1**  ~/~/  Enable DI2 as Sleep pin
478 +AT+DI2SLEEP=1 ~/~/Enable DI2 as Sleep pin
491 491  
492 -**AT+DI2SLEEP=0**  ~/~/  Disable DI2 as Sleep pin
480 +AT+DI2SLEEP=0 ~/~/Disable DI2 as Sleep pin
493 493  
494 494  When DI2 is enabled as sleep pin, a falling trigger (with 500ms pulse) will set LT into sleep mode. A raising trigger will wake up it again.
495 495  
496 -In sleep mode, DORO will keep its initial state if AT+DOROSAVE=2, otherwise DORO will be in OFF state
497 497  
485 +== **2.4 Data Format** ==
498 498  
499 -== 2.4 Data Format ==
500 500  
501 -
502 502  (((
503 503  8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum
504 504  )))
505 505  
506 506  (((
507 -(% style="color:blue" %)**Payload:Payload triggered by TDC or DI**
493 +
508 508  )))
509 509  
510 -(% border="1" style="background-color:#f7faff; color:black; width:825px" %)
511 -|=(% style="width: 102px;" %)(((
496 +(((
497 +(% style="color:blue" %)**Payload:**
498 +)))
499 +
500 +(% border="1" style="background-color:#f7faff; color:black; width:938px" %)
501 +|=(% style="width: 123px;" %)(((
512 512  **Size (bytes)**
513 -)))|=(% style="width: 74px;" %)(((
503 +)))|=(% style="width: 107px;" %)(((
514 514  1
515 -)))|=(% style="width: 72px;" %)(((
505 +)))|=(% style="width: 107px;" %)(((
516 516  1
517 -)))|=(% style="width: 47px;" %)(((
507 +)))|=(% style="width: 107px;" %)(((
518 518  1
519 -)))|=(% style="width: 83px;" %)(((
509 +)))|=(% style="width: 107px;" %)(((
520 520  1
521 -)))|=(% style="width: 90px;" %)(((
511 +)))|=(% style="width: 107px;" %)(((
522 522  1
523 -)))|=(% style="width: 92px;" %)(((
513 +)))|=(% style="width: 107px;" %)(((
524 524  1
525 -)))|=(% style="width: 78px;" %)(((
515 +)))|=(% style="width: 107px;" %)(((
526 526  1
527 -)))|=(% style="width: 91px;" %)(((
517 +)))|=(% style="width: 107px;" %)(((
528 528  1
529 -)))|=(% style="width: 91px;" %)(((
519 +)))|=(% style="width: 107px;" %)(((
530 530  1
531 531  )))
532 -|(% style="width:102px" %)(((
522 +|(% style="width:123px" %)(((
533 533  **Value**
534 -)))|(% style="width:74px" %)(((
524 +)))|(% style="width:38px" %)(((
535 535  address
536 -)))|(% style="width:72px" %)(((
526 +)))|(% style="width:70px" %)(((
537 537  request
538 -)))|(% style="width:47px" %)(((
528 +)))|(% style="width:52px" %)(((
539 539  ACK
540 -)))|(% style="width:83px" %)(((
530 +)))|(% style="width:127px" %)(((
541 541  (((
542 542  DI1&
533 +)))
534 +
535 +(((
543 543  DI1 level
544 544  )))
545 -)))|(% style="width:90px" %)(((
538 +)))|(% style="width:101px" %)(((
546 546  DI1TODO1
547 -)))|(% style="width:92px" %)(((
540 +)))|(% style="width:91px" %)(((
548 548  DI1TORO1
549 -)))|(% style="width:78px" %)(((
542 +)))|(% style="width:111px" %)(((
550 550  (((
551 551  DI2&
552 -DI2 leve
553 553  )))
554 -)))|(% style="width:91px" %)(((
546 +
547 +(((
548 +DI2 level
549 +)))
550 +)))|(% style="width:105px" %)(((
555 555  DI2TODO2
556 -)))|(% style="width:91px" %)(((
552 +)))|(% style="width:106px" %)(((
557 557  DI2TORO2
558 558  )))
559 559  
... ... @@ -600,56 +600,62 @@
600 600  (((
601 601  
602 602  
603 -(% style="color:blue" %)**Payload:（Since firmware 1.3）The receiver replies to the sent packet**
599 +(% style="color:#4f81bd" %)**Payload:（Since firmware 1.3）The receiver replies to the sent packet**
604 604  )))
605 605  
606 -(% border="1" style="background-color:#f7faff; color:black; width:822px" %)
607 -|=(% style="width: 97px;" %)(((
608 -**Size(bytes)**
609 -)))|=(% style="width: 71px;" %)(((
602 +(% border="1" style="background-color:#f7faff; color:black; width:938px" %)
603 +|=(% style="width: 123px;" %)(((
604 +**Size (bytes)**
605 +)))|=(% style="width: 107px;" %)(((
610 610  1
611 -)))|=(% style="width: 70px;" %)(((
607 +)))|=(% style="width: 107px;" %)(((
612 612  1
613 -)))|=(% style="width: 48px;" %)(((
609 +)))|=(% style="width: 107px;" %)(((
614 614  1
615 -)))|=(% style="width: 85px;" %)(((
611 +)))|=(% style="width: 107px;" %)(((
616 616  1
617 -)))|=(% style="width: 90px;" %)(((
613 +)))|=(% style="width: 107px;" %)(((
618 618  1
619 -)))|=(% style="width: 88px;" %)(((
615 +)))|=(% style="width: 107px;" %)(((
620 620  1
621 -)))|=(% style="width: 86px;" %)(((
617 +)))|=(% style="width: 107px;" %)(((
622 622  1
623 -)))|=(% style="width: 92px;" %)(((
619 +)))|=(% style="width: 107px;" %)(((
624 624  1
625 -)))|=(% style="width: 92px;" %)(((
621 +)))|=(% style="width: 107px;" %)(((
626 626  1
627 627  )))
628 -|(% style="width:97px" %)(((
624 +|(% style="width:123px" %)(((
629 629  **Value**
630 -)))|(% style="width:71px" %)(((
626 +)))|(% style="width:38px" %)(((
631 631  address
632 632  )))|(% style="width:70px" %)(((
633 633  request
634 -)))|(% style="width:48px" %)(((
630 +)))|(% style="width:52px" %)(((
635 635  ACK
636 -)))|(% style="width:85px" %)(((
632 +)))|(% style="width:127px" %)(((
637 637  (((
638 -DOI1&
639 -DOI2 level
634 +DO1&
640 640  )))
641 -)))|(% style="width:90px" %)(((
636 +
637 +(((
638 +DO1 level
639 +)))
640 +)))|(% style="width:101px" %)(((
642 642  DI1TODO1
643 -)))|(% style="width:88px" %)(((
642 +)))|(% style="width:91px" %)(((
644 644  DI1TORO1
645 -)))|(% style="width:86px" %)(((
644 +)))|(% style="width:111px" %)(((
646 646  (((
647 647  RO2&
647 +)))
648 +
649 +(((
648 648  RO2 level
649 649  )))
650 -)))|(% style="width:92px" %)(((
652 +)))|(% style="width:105px" %)(((
651 651  DI2TODO2
652 -)))|(% style="width:92px" %)(((
654 +)))|(% style="width:106px" %)(((
653 653  DI2TORO2
654 654  )))
655 655  
... ... @@ -667,7 +667,7 @@
667 667  
668 668  (((
669 669  (((
670 -(% style="color:#037691" %)**The fourth byte**(%%)**:**  the high four bits are 1 to represent DOI1, and the low four bits are the level of DOI2 when the interrupt is triggered.
672 +(% style="color:#037691" %)**The fourth byte**(%%)**:**  the high four bits are 1 to represent DO1, and the low four bits are the level of DO1 when the interrupt is triggered.
671 671  )))
672 672  )))
673 673  

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