Changes for page Point to Point Communication of LT-22222-L
Last modified by Edwin Chen on 2022/11/22 09:38
Change comment:
There is no comment for this version
Summary
-
Page properties (3 modified, 0 added, 0 removed)
-
Attachments (0 modified, 0 added, 3 removed)
Details
- Page properties
-
- Title
-
... ... @@ -1,1 +1,1 @@ 1 -Point to Point Communication of LT-22222-L 1 + Point to Point Communication of LT-22222-L - Author
-
... ... @@ -1,1 +1,1 @@ 1 -XWiki. Bei1 +XWiki.Xiaoling - Content
-
... ... @@ -1,10 +1,7 @@ 1 -**Contents: ** 2 - 1 +{{box cssClass="floatinginfobox" title="**Contents**"}} 3 3 {{toc/}} 3 +{{/box}} 4 4 5 - 6 - 7 - 8 8 = **1. Overview** = 9 9 10 10 ((( ... ... @@ -15,18 +15,19 @@ 15 15 [[Point to Point Software for LT-22222-L>>https://github.com/dragino/LT-22222-L]]. 16 16 ))) 17 17 15 +== == 18 18 19 19 = **2. Features for this firmware** = 20 20 19 + 21 21 == **2.1 Point To Point** == 22 22 23 -=== **2.1.1 Overview** === 24 24 25 - 26 26 [[image:image-20220602111219-1.png||height="472" width="972"]] 27 27 28 28 29 -=== **2.2.2 Configure** === 26 +(% class="wikigeneratedid" id="H2.2.Configure" %) 27 +(% style="color:blue" %)**Configure:** 30 30 31 31 32 32 (% border="1" style="background-color:#f7faff; color:black; width:500px" %) ... ... @@ -41,661 +41,170 @@ 41 41 |AT+DI2TODO2=2 |AT+DI2TODO2=2 42 42 |AT+DI2TORO2=2|AT+DI2TORO2=2 43 43 44 -== =**2.2.3Serialportdisplay** ===42 +== **2.2 Point To Mult-Point ** == 45 45 46 46 47 -(% class="wikigeneratedid" %) 48 48 [[image:image-20220602111219-2.png]] 49 49 50 50 51 -(% class="wikigeneratedid" %) 52 52 [[image:image-20220602111219-3.png]] 53 53 54 -(% class="wikigeneratedid" %) 55 55 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. 56 56 57 57 58 -== **2.2 Point To Mult-Point ** == 59 - 60 -=== **2.2.1 Overview** === 61 - 62 - 63 -[[image:1654152390874-192.png]] 64 - 65 - 66 -=== **2.2.2 Configure** === 67 - 68 - 69 -(% style="color:#4f81bd" %)**Configuration of the TX group:** 70 - 71 -AT+GROUPMOD=0,2 72 - 73 -AT+TXCHS=868700000 74 - 75 -AT+RXCHS=869000000 76 - 77 -AT+TRIG1=2,50 78 - 79 -AT+TRIG2=2,50 80 - 81 -AT+DI1TODO1=1 82 - 83 -AT+DI1TORO1=1 84 - 85 -AT+DI2TODO2=1 86 - 87 -AT+DI2TORO2=1 88 - 89 - 90 -(% style="color:#4f81bd" %)**Configuration for RX group number 1:** 91 - 92 -AT+GROUPMOD=1,1 93 - 94 -AT+TXCHS=869000000 95 - 96 -AT+RXCHS=868700000 97 - 98 - 99 -(% style="color:#4f81bd" %)**Configuration for RX group number 2:** 100 - 101 -AT+GROUPMOD=1,2 102 - 103 -AT+TXCHS=869000000 104 - 105 -AT+RXCHS=868700000 106 - 107 - 108 -=== **2.2.3 Serial port display** === 109 - 110 - 111 -[[image:image-20220602144747-1.png]] 112 - 113 - 114 -[[image:image-20220602144747-2.png]] 115 - 116 -((( 117 -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. 118 -))) 119 - 120 - 121 121 == **2.3 AT command** == 122 122 123 123 124 -((( 125 125 (% style="color:#037691" %)**ATZ** (%%)**: ** Trig a reset of the MCU 126 -))) 127 127 128 -((( 129 129 (% style="color:#037691" %)**AT+FDR** (%%)**:** Reset Parameters to Factory Default, Keys Reserve 130 -))) 131 131 132 -((( 133 133 (% style="color:#037691" %)**AT+FCU** (%%)**:** Get or Set the Frame Counter Uplink 134 -))) 135 135 136 -((( 137 137 (% style="color:#037691" %)**AT+FCD** (%%)**:** Get or Set the Frame Counter Downlink 138 -))) 139 139 140 -((( 141 141 (% style="color:#037691" %)**AT+TXP** (%%)**:** Get or Set the transmit power, the maximum is 20dBm (default is 14dBm) 142 -))) 143 143 144 -((( 145 -(% style="color:#037691" %)**AT+SYNC** (%%)**:** Get or Set the Sync word [1:0x34,0:0x12] (default is 1) 146 -))) 66 +(% style="color:#037691" %)**AT+SYNC** (%%)**:** Get or Set the Sync word [1:0x34,0:0x12] (default is 1) 147 147 148 -((( 149 149 (% style="color:#037691" %)**AT+PMB** (%%)**: **Get or Set the preamble (default:8) 150 -))) 151 151 152 -((( 153 153 (% style="color:#037691" %)**AT+TXCHS **(%%)**:** Get or Set the transmit frequency of TX (default:868700000) 154 -))) 155 155 156 -((( 157 157 (% style="color:#037691" %)**AT+TXSF **(%%)**:** Get or Set the spreading factor of TX (7 to 12) (default:12) 158 -))) 159 159 160 -((( 161 161 (% style="color:#037691" %)**AT+RXCHS **(%%)**:** Get or Set the transmit frequency of RX (default:869000000) 162 -))) 163 163 164 -((( 165 165 (% style="color:#037691" %)**AT+RXSF **(%%)**:** Get or Set the spreading factor of RX (7 to 12) (default:12) 166 -))) 167 167 168 -((( 169 169 (% style="color:#037691" %)**AT+BW **(%%)**: **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0) 170 -))) 171 171 172 -((( 173 173 (% style="color:#037691" %)**AT+CR **(%%)**: **Get or Set the coding rate [1: 4/5, 2: 4/6, 3: 4/7, 4: 4/8] (default:1) 174 -))) 175 175 176 -((( 177 177 (% style="color:#037691" %)**AT+TDC **(%%)**:** Get or set the application data transmission interval in ms(default 10 minutes) 178 -))) 179 179 180 -((( 181 -(% style="color:#037691" %)**AT+VER **(%%)**:** Get firmware version number 182 -))) 84 +(% style="color:#037691" %)**AT+VER **(%%)**:** Get firmware version number 183 183 184 -((( 185 -(% style="color:#037691" %)**AT+SEND **(%%)**: **Set Custom sent hex data 186 -))) 86 +(% style="color:#037691" %)**AT+SEND **(%%)**: **Set Custom sent hex data 187 187 188 -((( 189 189 (% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0) 190 -))) 191 191 192 -((( 193 -((( 194 194 (% style="color:#037691" %)**AT+GROUPID **(%%)**: **Set or Get the password for matching between TX group and RX group, which can be composed of numbers or characters (default: 12345678) 195 -))) 196 -))) 197 197 198 -((( 199 199 (% style="color:#037691" %)**AT+TRIG1 **(%%)**:** Set or Get the DI1 pin interrupt trigger mode (default 0,0) 200 -))) 201 201 202 -((( 203 203 (% style="color:#037691" %)**AT+TRIG2 **(%%)**: **Set or Get the DI2 pin interrupt trigger mode (default 0,0) 204 -))) 205 205 206 -((( 207 207 (% style="color:#037691" %)**AT+DI1TODO1 **(%%)**: **Set or get the mode in which DI1 maps to DO1 (default 0) 208 -))) 209 209 210 -((( 211 211 (% style="color:#037691" %)**AT+DI1TORO1 **(%%)**: **Set or get the mode in which DI1 maps to RO1(default 0) 212 -))) 213 213 214 -((( 215 215 (% style="color:#037691" %)**AT+DI2TODO2 **(%%)**:** Set or get the mode in which DI2 maps to DO2(default 0) 216 -))) 217 217 218 -((( 219 219 (% style="color:#037691" %)**AT+DI2TORO2 **(%%)**: **Set or get the mode in which DI2 maps to RO2(default 0) 220 -))) 221 221 222 -((( 223 - 224 -))) 225 225 226 -((( 227 - 228 -))) 229 229 230 -((( 231 231 (% style="color:#4f81bd" %)**Example 1:** 232 -))) 233 233 234 -((( 235 235 **AT+SEND=01020304 **will send a payload of 01020304 236 -))) 237 237 238 -((( 239 - 240 -))) 241 241 242 -((( 243 243 (% style="color:#4f81bd" %)**Example 2: ** 244 -))) 245 245 246 -((( 247 -**AT+TRIGx=a **Trigger directly without triggering time 248 -))) 113 +**AT+TRIGx=a **Trigger directly without triggering time 249 249 250 -((( 251 251 **AT+TRIGx=a,b** 252 -))) 253 253 254 -((( 255 255 a=0: falling edge; 256 -))) 257 257 258 -((( 259 259 a=1: rising edge; 260 -))) 261 261 262 -((( 263 263 a=2: falling edge or rising edge; 264 -))) 265 265 266 -((( 267 267 b: triggering time in milliseconds. 268 -))) 269 269 270 -((( 271 271 AT+TRIGx=2,50 Falling edge or rising edge trigger, and the trigger time exceeds 50ms. 272 -))) 273 273 274 -((( 275 - 276 -))) 277 277 278 -((( 279 279 (% style="color:#4f81bd" %)**Example 3: ** 280 -))) 281 281 282 -((( 283 283 **AT+DI1TODO1= maps value** 284 -))) 285 285 286 -((( 287 287 **AT+DI1TORO1= maps value** 288 -))) 289 289 290 -((( 291 291 **AT+DI2TODO2= maps value** 292 -))) 293 293 294 -((( 295 295 **AT+DI2TORO2= maps value** 296 -))) 297 297 298 -((( 299 - 300 -))) 301 301 302 302 (% border="1" style="background-color:#f7faff; color:black; width:706px" %) 303 -|=(% style="width: 102px;" %)((( 304 -Maps value 305 -)))|=(% style="width: 331px;" %)((( 306 -DIx to DOx 307 -)))|=(% style="width: 268px;" %)((( 308 -DIx to ROx 309 -))) 310 -|(% style="width:102px" %)((( 311 -0 312 -)))|(% style="width:331px" %)((( 313 -No Action 314 -)))|(% style="width:268px" %)((( 315 -No Action 316 -))) 317 -|(% style="width:102px" %)((( 318 -1 319 -)))|(% style="width:331px" %)((( 320 -If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level 321 -)))|(% style="width:268px" %)((( 322 -((( 140 +|=(% style="width: 102px;" %)Maps value|=(% style="width: 331px;" %)DIx to DOx|=(% style="width: 268px;" %)DIx to ROx 141 +|(% style="width:102px" %)0|(% style="width:331px" %)No Action|(% style="width:268px" %)No Action 142 +|(% style="width:102px" %)1|(% style="width:331px" %)If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level|(% style="width:268px" %)((( 323 323 If DIx is high, control ROx to close, 324 -))) 325 325 326 -((( 327 327 if DIx is low, control ROx to open 328 328 ))) 329 -))) 330 -|(% style="width:102px" %)((( 331 -2 332 -)))|(% style="width:331px" %)((( 333 -If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level 334 -)))|(% style="width:268px" %)((( 335 -((( 147 +|(% style="width:102px" %)2|(% style="width:331px" %)If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level|(% style="width:268px" %)((( 336 336 If DIx is high, control ROx to open, 337 -))) 338 338 339 -((( 340 340 if DIx is low, control ROx to close 341 341 ))) 342 -))) 343 -|(% style="width:102px" %)((( 344 -3 345 -)))|(% style="width:331px" %)((( 346 -DOx state flip 347 -)))|(% style="width:268px" %)((( 348 -ROx state flip 349 -))) 152 +|(% style="width:102px" %)3|(% style="width:331px" %)DOx state flip|(% style="width:268px" %)ROx state flip 350 350 351 - (((154 + 352 352 (% style="color:#4f81bd" %)**Example 4: ** 353 -))) 354 354 355 -((( 356 356 **AT+GROUPMOD=0** Set to point to point mode 357 -))) 358 358 359 -((( 360 360 **AT+GROUPMOD=0,aa** Set the TX group that controls the number of aa (The maximum value of aa is 8) 361 -))) 362 362 363 -((( 364 -((( 365 365 **AT+GROUPMOD=1,bb** Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8) 366 -))) 367 -))) 368 368 369 -((( 370 370 **AT+GROUPMOD=0,2** Set to control the TX group of the two RX groups 371 -))) 372 372 373 -((( 374 374 **AT+GROUPMOD=1,1** Set the RX group numbered 1 375 -))) 376 376 377 -((( 378 378 **AT+GROUPMOD=1,2** Set the RX group numbered 2 379 379 380 380 381 -=== 2.3.1 TRIG command is configured in the transmit LT. (LT1)(Since firmware 1.3) === 382 -))) 383 383 384 -**AT+TRIGx=a **Trigger transmit directly without triggering time 385 - 386 -**AT+TRIGx=a,b** Trigger transmit with triggering time threshold 387 - 388 -**AT+TRIGx=a,b,c **Trigger transmit with triggering time threshold, and continue to transmit every xx seconds if DI status no change. 389 - 390 - 391 -a=0: falling edge; 392 - 393 -a=1: rising edge; 394 - 395 -a=2: falling edge or rising edge; 396 - 397 -b: triggering time in milliseconds. 398 - 399 -c: transmit interval 400 - 401 - 402 -**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) 403 - 404 -Command: 405 - 406 -AT+TRIG1=2,50 Falling edge or rising edge trigger, and the trigger time should exceed 50ms. 407 - 408 - 409 -**Use Case 2: **Sync LT2 RO / DO status with LT1 every minute. 410 - 411 -Command: 412 - 413 -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. 414 - 415 - 416 -=== 2.3.2 RO/DO is configured in the receiver LT (LT2)(Since firmware 1.3) === 417 - 418 -AT+DI1TODO1= maps value[,latch time] 419 - 420 -AT+DI1TORO1= maps value[,latch time] 421 - 422 -AT+DI2TODO2= maps value[,latch time] 423 - 424 -AT+DI2TORO2= maps value[,latch time] 425 - 426 - 427 -(% border="1" style="background-color:#f7faff; color:black; width:706px" %) 428 -| **Maps value**|DIx to DOx|DIx to ROx 429 -|0|No Action|No Action 430 -|1|If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level|((( 431 -If DIx is high, control ROx to close, 432 - 433 -if DIx is low, control ROx to open 434 -))) 435 -|2|If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level|((( 436 -If DIx is high, control ROx to open, 437 - 438 -if DIx is low, control ROx to close 439 -))) 440 -|3|DOx state flip|ROx state flip 441 - 442 -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. 443 - 444 - 445 -**Case1**: 446 - 447 -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. 448 - 449 - 450 -**Case2**: 451 - 452 -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. 453 - 454 - 455 -=== 2.3.3 Save the RO/DO status during power off(Since firmware 1.3) === 456 - 457 -Enable/Disbale retain Digital Output/Relay Output after power off / Power On 458 - 459 -AT+DOROSAVE=0 ~/~/ Disable Retain after power off/on 460 - 461 -AT+DOROSAVE=1 ~/~/ Enable Retain after power off/on 462 - 463 -AT+DOROSAVE=2,a,b,c,d ~/~/ set DO/RO port to default state after power on. 464 - 465 -a: for DO1 466 - 467 -b: for DO2 468 - 469 -c: for RO1 470 - 471 -d: for RO2. 472 - 473 -Example: 474 - 475 -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. 476 - 477 - 478 -=== 2.3.4 Control Sleep status.(Since firmware 1.3) === 479 - 480 -DI2 can be used to set LT into sleep mode. 481 - 482 -AT+DI2SLEEP=1 ~/~/Enable DI2 as Sleep pin 483 - 484 -AT+DI2SLEEP=0 ~/~/Disable DI2 as Sleep pin 485 - 486 -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. 487 - 488 - 489 489 == **2.4 Data Format** == 490 490 491 -((( 492 492 8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum 493 -))) 494 494 495 -((( 496 - 497 -))) 498 498 499 -((( 500 -(% style="color:#4f81bd" %)**Payload:** 501 -))) 176 +**Payload:** 502 502 503 503 (% border="1" style="background-color:#f7faff; color:black; width:938px" %) 504 -|=(% style="width: 123px;" %)((( 505 -**Size (bytes)** 506 -)))|=(% style="width: 107px;" %)((( 507 -1 508 -)))|=(% style="width: 107px;" %)((( 509 -1 510 -)))|=(% style="width: 107px;" %)((( 511 -1 512 -)))|=(% style="width: 107px;" %)((( 513 -1 514 -)))|=(% style="width: 107px;" %)((( 515 -1 516 -)))|=(% style="width: 107px;" %)((( 517 -1 518 -)))|=(% style="width: 107px;" %)((( 519 -1 520 -)))|=(% style="width: 107px;" %)((( 521 -1 522 -)))|=(% style="width: 107px;" %)((( 523 -1 524 -))) 525 -|(% style="width:123px" %)((( 526 -**Value** 527 -)))|(% style="width:38px" %)((( 528 -address 529 -)))|(% style="width:70px" %)((( 530 -request 531 -)))|(% style="width:52px" %)((( 532 -ACK 533 -)))|(% style="width:127px" %)((( 534 -((( 179 +|=(% style="width: 123px;" %)**Size (bytes)**|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1 180 +|(% style="width:123px" %)**Value**|(% style="width:38px" %)address|(% style="width:70px" %)request|(% style="width:52px" %)ACK|(% style="width:127px" %)((( 535 535 DI1& 536 -))) 537 537 538 -((( 539 539 DI1 level 540 -))) 541 -)))|(% style="width:101px" %)((( 542 -DI1TODO1 543 -)))|(% style="width:91px" %)((( 544 -DI1TORO1 545 -)))|(% style="width:111px" %)((( 546 -((( 184 +)))|(% style="width:101px" %)DI1TODO1|(% style="width:91px" %)DI1TORO1|(% style="width:111px" %)((( 547 547 DI2& 548 -))) 549 549 550 -((( 551 551 DI2 level 552 -))) 553 -)))|(% style="width:105px" %)((( 554 -DI2TODO2 555 -)))|(% style="width:106px" %)((( 556 -DI2TORO2 557 -))) 188 +)))|(% style="width:105px" %)DI2TODO2|(% style="width:106px" %)DI2TORO2 558 558 559 -((( 560 560 (% style="color:#037691" %)**The first byte**(%%)**:** 00 is the broadcast address, 01-08 is the RX group number. 561 -))) 562 562 563 -((( 564 564 (% style="color:#037691" %)**The second byte**(%%)**:** send mapping request when not 0, not request when it is 0. 565 -))) 566 566 567 -((( 568 568 (% style="color:#037691" %)**The third byte**(%%)**:** ACK returned to the sender after the mapping is completed. 569 -))) 570 570 571 -((( 572 -((( 573 573 (% style="color:#037691" %)**The fourth byte**(%%)**:** the high four bits are 1 to represent DI1, and the low four bits are the level of DI1 when the interrupt is triggered. 574 -))) 575 -))) 576 576 577 -((( 578 578 (% style="color:#037691" %)**The Fifth byte**(%%)**: **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered. 579 -))) 580 580 581 -((( 582 582 (% style="color:#037691" %)**The Sixth byte**(%%)**:** 0 does not trigger interrupt when DI1TORO1 interrupt is triggered. 583 -))) 584 584 585 -((( 586 -((( 587 587 (% style="color:#037691" %)**The seventh byte**(%%)**:** the high four bits are 2 to represent DI2, and the low four bits are the level of DI2 when the interrupt is triggered. 588 -))) 589 -))) 590 590 591 -((( 592 592 (% style="color:#037691" %)**The 8th byte**(%%)**: **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered. 593 -))) 594 594 595 -((( 596 596 (% style="color:#037691" %)**The 9th byte**(%%)**:** DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered. 597 -))) 598 598 599 -((( 600 600 601 - 602 -(% style="color:#4f81bd" %)**Payload:(Since firmware 1.3)The receiver replies to the sent packet** 603 -))) 604 - 605 -(% border="1" style="background-color:#f7faff; color:black; width:938px" %) 606 -|=(% style="width: 123px;" %)((( 607 -**Size (bytes)** 608 -)))|=(% style="width: 107px;" %)((( 609 -1 610 -)))|=(% style="width: 107px;" %)((( 611 -1 612 -)))|=(% style="width: 107px;" %)((( 613 -1 614 -)))|=(% style="width: 107px;" %)((( 615 -1 616 -)))|=(% style="width: 107px;" %)((( 617 -1 618 -)))|=(% style="width: 107px;" %)((( 619 -1 620 -)))|=(% style="width: 107px;" %)((( 621 -1 622 -)))|=(% style="width: 107px;" %)((( 623 -1 624 -)))|=(% style="width: 107px;" %)((( 625 -1 626 -))) 627 -|(% style="width:123px" %)((( 628 -**Value** 629 -)))|(% style="width:38px" %)((( 630 -address 631 -)))|(% style="width:70px" %)((( 632 -request 633 -)))|(% style="width:52px" %)((( 634 -ACK 635 -)))|(% style="width:127px" %)((( 636 -((( 637 -DO1& 638 -))) 639 - 640 -((( 641 -DO1 level 642 -))) 643 -)))|(% style="width:101px" %)((( 644 -DI1TODO1 645 -)))|(% style="width:91px" %)((( 646 -DI1TORO1 647 -)))|(% style="width:111px" %)((( 648 -((( 649 -RO2& 650 -))) 651 - 652 -((( 653 -RO2 level 654 -))) 655 -)))|(% style="width:105px" %)((( 656 -DI2TODO2 657 -)))|(% style="width:106px" %)((( 658 -DI2TORO2 659 -))) 660 - 661 -((( 662 -(% style="color:#037691" %)**The first byte**(%%)**:** 00 is the broadcast address, 01-08 is the RX group number. 663 -))) 664 - 665 -((( 666 -(% style="color:#037691" %)**The second byte**(%%)**:** send mapping request when not 0, not request when it is 0. 667 -))) 668 - 669 -((( 670 -(% style="color:#037691" %)**The third byte**(%%)**:** ACK returned to the sender after the mapping is completed. 671 -))) 672 - 673 -((( 674 -((( 675 -(% 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. 676 -))) 677 -))) 678 - 679 -((( 680 -(% style="color:#037691" %)**The Fifth byte**(%%)**: **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered. 681 -))) 682 - 683 -((( 684 -(% style="color:#037691" %)**The Sixth byte**(%%)**:** 0 does not trigger interrupt when DI1TORO1 interrupt is triggered. 685 -))) 686 - 687 -((( 688 -((( 689 -(% style="color:#037691" %)**The seventh byte**(%%)**:** the high four bits are 2 to represent RO2, and the low four bits are the level of RO2 when the interrupt is triggered. 690 -))) 691 -))) 692 - 693 -((( 694 -(% style="color:#037691" %)**The 8th byte**(%%)**: **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered. 695 -))) 696 - 697 -((( 698 -(% style="color:#037691" %)**The 9th byte**(%%)**:** DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered. 699 -))) 700 - 701 -
- 1654152390874-192.png
-
- Author
-
... ... @@ -1,1 +1,0 @@ 1 -XWiki.Xiaoling - Size
-
... ... @@ -1,1 +1,0 @@ 1 -287.9 KB - Content
- image-20220602144747-1.png
-
- Author
-
... ... @@ -1,1 +1,0 @@ 1 -XWiki.Xiaoling - Size
-
... ... @@ -1,1 +1,0 @@ 1 -36.9 KB - Content
- image-20220602144747-2.png
-
- Author
-
... ... @@ -1,1 +1,0 @@ 1 -XWiki.Xiaoling - Size
-
... ... @@ -1,1 +1,0 @@ 1 -21.9 KB - Content