This repository has been archived by the owner on May 24, 2020. It is now read-only.
forked from PaulStoffregen/RadioHead
-
Notifications
You must be signed in to change notification settings - Fork 0
/
RH_RF24.cpp
1166 lines (1069 loc) · 44.6 KB
/
RH_RF24.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
// RH_RF24.cpp
//
// Copyright (C) 2011 Mike McCauley
// $Id: RH_RF24.cpp,v 1.16 2016/04/04 01:40:12 mikem Exp $
#include <RH_RF24.h>
// Generated with Silicon Labs WDS software:
#include "radio_config_Si4460.h"
// Interrupt vectors for the 3 Arduino interrupt pins
// Each interrupt can be handled by a different instance of RH_RF24, allowing you to have
// 2 or more RF24s per Arduino
RH_RF24* RH_RF24::_deviceForInterrupt[RH_RF24_NUM_INTERRUPTS] = {0, 0, 0};
uint8_t RH_RF24::_interruptCount = 0; // Index into _deviceForInterrupt for next device
// This configuration data is defined in radio_config_Si4460.h
// which was generated with the Silicon Labs WDS program
PROGMEM const uint8_t RFM26_CONFIGURATION_DATA[] = RADIO_CONFIGURATION_DATA_ARRAY;
// These configurations were all generated originally by the Silicon LAbs WDS configuration tool.
// The configurations were imported into RH_RF24, the complete properties set dumped to a file with printRegisters, then
// RH_RF24_property_data/convert.pl was used to generate the entry for this table.
// Contributions of new complete and tested ModemConfigs ready to add to this list will be readily accepted.
// Casual suggestions of new schemes without working examples will probably be passed over
PROGMEM static const RH_RF24::ModemConfig MODEM_CONFIG_TABLE[] =
{
// These were generated with convert.pl from data in RH_RF24_property_data
// FSK_Rb0_5Fd1
{ 0x02, 0x00, 0x13, 0x88, 0x01, 0x00, 0x00, 0x46, 0x01, 0x34, 0x11, 0x02, 0x71, 0x00, 0xd1, 0xb7, 0x00, 0x69, 0x02, 0x36, 0x80, 0x01, 0x5a, 0xfc, 0xe2, 0x11, 0x89, 0x89, 0x00, 0x02, 0xff, 0xff, 0x00, 0x2b, 0x02, 0x81, 0x00, 0xad, 0x3a, 0xff, 0xba, 0x0f, 0x51, 0xcf, 0xa9, 0xc9, 0xfc, 0x1b, 0x1e, 0x0f, 0x01, 0xfc, 0xfd, 0x15, 0xff, 0x00, 0x0f, 0xff, 0xba, 0x0f, 0x51, 0xcf, 0xa9, 0xc9, 0xfc, 0x1b, 0x1e, 0x0f, 0x01, 0xfc, 0xfd, 0x15, 0xff, 0x00, 0x0f, 0x3f, 0x2c, 0x0e, 0x04, 0x0c, 0x73, },
// FSK_Rb5Fd10
{ 0x02, 0x00, 0xc3, 0x50, 0x01, 0x00, 0x02, 0xbb, 0x01, 0x30, 0x20, 0x01, 0x77, 0x01, 0x5d, 0x86, 0x00, 0xaf, 0x02, 0x36, 0x80, 0x0f, 0x15, 0x87, 0xe2, 0x11, 0x52, 0x52, 0x00, 0x02, 0xff, 0xff, 0x00, 0x2a, 0x02, 0x83, 0x01, 0x20, 0x40, 0xff, 0xba, 0x0f, 0x51, 0xcf, 0xa9, 0xc9, 0xfc, 0x1b, 0x1e, 0x0f, 0x01, 0xfc, 0xfd, 0x15, 0xff, 0x00, 0x0f, 0xff, 0xba, 0x0f, 0x51, 0xcf, 0xa9, 0xc9, 0xfc, 0x1b, 0x1e, 0x0f, 0x01, 0xfc, 0xfd, 0x15, 0xff, 0x00, 0x0f, 0x3f, 0x2c, 0x0e, 0x04, 0x0c, 0x73, },
// FSK_Rb50Fd100
{ 0x02, 0x07, 0xa1, 0x20, 0x01, 0x00, 0x1b, 0x4f, 0x01, 0x00, 0x10, 0x00, 0xc8, 0x02, 0x8f, 0x5c, 0x01, 0x48, 0x02, 0x36, 0x80, 0x92, 0x0a, 0x46, 0xe2, 0x11, 0x2c, 0x2c, 0x00, 0x02, 0xff, 0xff, 0x00, 0x29, 0x02, 0x83, 0x02, 0x7f, 0x40, 0xff, 0xc4, 0x30, 0x7f, 0xf5, 0xb5, 0xb8, 0xde, 0x05, 0x17, 0x16, 0x0c, 0x03, 0x00, 0x15, 0xff, 0x00, 0x00, 0xff, 0xc4, 0x30, 0x7f, 0xf5, 0xb5, 0xb8, 0xde, 0x05, 0x17, 0x16, 0x0c, 0x03, 0x00, 0x15, 0xff, 0x00, 0x00, 0x3f, 0x2c, 0x0e, 0x04, 0x0c, 0x73, },
//FSK_Rb150Fd300
{ 0x02, 0x16, 0xe3, 0x60, 0x01, 0x00, 0x51, 0xec, 0x01, 0x00, 0x30, 0x00, 0xc8, 0x02, 0x8f, 0x5c, 0x01, 0x48, 0x02, 0x47, 0x83, 0x6a, 0x04, 0xb5, 0xe2, 0x22, 0x16, 0x16, 0x00, 0x02, 0xff, 0xff, 0x00, 0x29, 0x02, 0x83, 0x02, 0x7f, 0x40, 0xff, 0xc4, 0x30, 0x7f, 0xf5, 0xb5, 0xb8, 0xde, 0x05, 0x17, 0x16, 0x0c, 0x03, 0x00, 0x15, 0xff, 0x00, 0x00, 0xff, 0xc4, 0x30, 0x7f, 0xf5, 0xb5, 0xb8, 0xde, 0x05, 0x17, 0x16, 0x0c, 0x03, 0x00, 0x15, 0xff, 0x00, 0x00, 0x3f, 0x39, 0x04, 0x05, 0x04, 0x01, },
// GFSK_Rb0_5Fd1
{ 0x03, 0x00, 0x4e, 0x20, 0x05, 0x00, 0x00, 0x46, 0x01, 0x34, 0x11, 0x02, 0x71, 0x00, 0xd1, 0xb7, 0x00, 0x69, 0x02, 0x36, 0x80, 0x01, 0x5a, 0xfc, 0xe2, 0x11, 0x89, 0x89, 0x00, 0x1a, 0xff, 0xff, 0x00, 0x2b, 0x02, 0x81, 0x00, 0x68, 0x3a, 0xff, 0xba, 0x0f, 0x51, 0xcf, 0xa9, 0xc9, 0xfc, 0x1b, 0x1e, 0x0f, 0x01, 0xfc, 0xfd, 0x15, 0xff, 0x00, 0x0f, 0xff, 0xba, 0x0f, 0x51, 0xcf, 0xa9, 0xc9, 0xfc, 0x1b, 0x1e, 0x0f, 0x01, 0xfc, 0xfd, 0x15, 0xff, 0x00, 0x0f, 0x3f, 0x2c, 0x0e, 0x04, 0x0c, 0x73, },
// GFSK_Rb5Fd10
{ 0x03, 0x03, 0x0d, 0x40, 0x05, 0x00, 0x02, 0xbb, 0x01, 0x30, 0x20, 0x01, 0x77, 0x01, 0x5d, 0x86, 0x00, 0xaf, 0x02, 0x36, 0x80, 0x0f, 0x15, 0x87, 0xe2, 0x11, 0x52, 0x52, 0x00, 0x1a, 0xff, 0xff, 0x00, 0x2a, 0x02, 0x83, 0x00, 0xad, 0x40, 0xff, 0xba, 0x0f, 0x51, 0xcf, 0xa9, 0xc9, 0xfc, 0x1b, 0x1e, 0x0f, 0x01, 0xfc, 0xfd, 0x15, 0xff, 0x00, 0x0f, 0xff, 0xba, 0x0f, 0x51, 0xcf, 0xa9, 0xc9, 0xfc, 0x1b, 0x1e, 0x0f, 0x01, 0xfc, 0xfd, 0x15, 0xff, 0x00, 0x0f, 0x3f, 0x2c, 0x0e, 0x04, 0x0c, 0x73, },
// GFSK_Rb50Fd100
{ 0x03, 0x0f, 0x42, 0x40, 0x09, 0x00, 0x1b, 0x4f, 0x01, 0x00, 0x10, 0x00, 0xc8, 0x02, 0x8f, 0x5c, 0x01, 0x48, 0x02, 0x36, 0x80, 0x92, 0x0a, 0x46, 0xe2, 0x11, 0x2c, 0x2c, 0x00, 0x1a, 0xff, 0xff, 0x00, 0x29, 0x02, 0x83, 0x01, 0x7f, 0x40, 0xff, 0xc4, 0x30, 0x7f, 0xf5, 0xb5, 0xb8, 0xde, 0x05, 0x17, 0x16, 0x0c, 0x03, 0x00, 0x15, 0xff, 0x00, 0x00, 0xff, 0xc4, 0x30, 0x7f, 0xf5, 0xb5, 0xb8, 0xde, 0x05, 0x17, 0x16, 0x0c, 0x03, 0x00, 0x15, 0xff, 0x00, 0x00, 0x3f, 0x2c, 0x0e, 0x04, 0x0c, 0x73, },
// GFSK_Rb150Fd300
{ 0x03, 0x2d, 0xc6, 0xc0, 0x09, 0x00, 0x51, 0xec, 0x01, 0x00, 0x30, 0x00, 0xc8, 0x02, 0x8f, 0x5c, 0x01, 0x48, 0x02, 0x47, 0x83, 0x6a, 0x04, 0xb5, 0xe2, 0x22, 0x16, 0x16, 0x00, 0x1a, 0xff, 0xff, 0x00, 0x29, 0x02, 0x83, 0x01, 0x7f, 0x40, 0xff, 0xc4, 0x30, 0x7f, 0xf5, 0xb5, 0xb8, 0xde, 0x05, 0x17, 0x16, 0x0c, 0x03, 0x00, 0x15, 0xff, 0x00, 0x00, 0xff, 0xc4, 0x30, 0x7f, 0xf5, 0xb5, 0xb8, 0xde, 0x05, 0x17, 0x16, 0x0c, 0x03, 0x00, 0x15, 0xff, 0x00, 0x00, 0x3f, 0x39, 0x04, 0x05, 0x04, 0x01, },
// OOK_Rb5Bw30
{ 0x01, 0x00, 0xc3, 0x50, 0x01, 0x00, 0x00, 0x00, 0x00, 0x34, 0x10, 0x00, 0x3f, 0x08, 0x31, 0x27, 0x04, 0x10, 0x02, 0x12, 0x00, 0x2c, 0x03, 0xf9, 0x62, 0x11, 0x0e, 0x0e, 0x00, 0x02, 0xff, 0xff, 0x00, 0x27, 0x00, 0x00, 0x07, 0xff, 0x40, 0xcc, 0xa1, 0x30, 0xa0, 0x21, 0xd1, 0xb9, 0xc9, 0xea, 0x05, 0x12, 0x11, 0x0a, 0x04, 0x15, 0xfc, 0x03, 0x00, 0xcc, 0xa1, 0x30, 0xa0, 0x21, 0xd1, 0xb9, 0xc9, 0xea, 0x05, 0x12, 0x11, 0x0a, 0x04, 0x15, 0xfc, 0x03, 0x00, 0x3f, 0x2c, 0x0e, 0x04, 0x0c, 0x73, },
// OOK_Rb10Bw40
{ 0x01, 0x01, 0x86, 0xa0, 0x01, 0x00, 0x00, 0x00, 0x00, 0x32, 0x20, 0x00, 0x5e, 0x05, 0x76, 0x1a, 0x02, 0xb9, 0x02, 0x12, 0x00, 0x57, 0x02, 0xb0, 0x62, 0x11, 0x15, 0x15, 0x00, 0x02, 0xff, 0xff, 0x00, 0x28, 0x00, 0x00, 0x07, 0xff, 0x40, 0xa2, 0x81, 0x26, 0xaf, 0x3f, 0xee, 0xc8, 0xc7, 0xdb, 0xf2, 0x02, 0x08, 0x07, 0x03, 0x15, 0xfc, 0x0f, 0x00, 0xa2, 0x81, 0x26, 0xaf, 0x3f, 0xee, 0xc8, 0xc7, 0xdb, 0xf2, 0x02, 0x08, 0x07, 0x03, 0x15, 0xfc, 0x0f, 0x00, 0x3f, 0x2c, 0x0e, 0x04, 0x0c, 0x73, },
};
RH_RF24::RH_RF24(uint8_t slaveSelectPin, uint8_t interruptPin, uint8_t sdnPin, RHGenericSPI& spi)
:
RHSPIDriver(slaveSelectPin, spi)
{
_interruptPin = interruptPin;
_sdnPin = sdnPin;
_idleMode = RH_RF24_DEVICE_STATE_READY;
_myInterruptIndex = 0xff; // Not allocated yet
}
void RH_RF24::setIdleMode(uint8_t idleMode)
{
_idleMode = idleMode;
}
bool RH_RF24::init()
{
if (!RHSPIDriver::init())
return false;
// Determine the interrupt number that corresponds to the interruptPin
int interruptNumber = digitalPinToInterrupt(_interruptPin);
if (interruptNumber == NOT_AN_INTERRUPT)
return false;
#ifdef RH_ATTACHINTERRUPT_TAKES_PIN_NUMBER
interruptNumber = _interruptPin;
#endif
// Initialise the radio
power_on_reset();
cmd_clear_all_interrupts();
// Here we use a configuration generated by the Silicon Las Wireless Development Suite
// in radio_config_Si4460.h
// WE override a few things later that we ned to be sure of.
configure(RFM26_CONFIGURATION_DATA);
// Get the device type and check it
// This also tests whether we are really connected to a device
uint8_t buf[8];
if (!command(RH_RF24_CMD_PART_INFO, 0, 0, buf, sizeof(buf)))
return false; // SPI error? Not connected?
_deviceType = (buf[1] << 8) | buf[2];
// Check PART to be either 0x4460, 0x4461, 0x4463, 0x4464
if (_deviceType != 0x4460 &&
_deviceType != 0x4461 &&
_deviceType != 0x4463 &&
_deviceType != 0x4464)
return false; // Unknown radio type, or not connected
// Add by Adrien van den Bossche <[email protected]> for Teensy
// ARM M4 requires the below. else pin interrupt doesn't work properly.
// On all other platforms, its innocuous, belt and braces
pinMode(_interruptPin, INPUT);
// Set up interrupt handler
// Since there are a limited number of interrupt glue functions isr*() available,
// we can only support a limited number of devices simultaneously
// ON some devices, notably most Arduinos, the interrupt pin passed in is actuallt the
// interrupt number. You have to figure out the interruptnumber-to-interruptpin mapping
// yourself based on knwledge of what Arduino board you are running on.
if (_myInterruptIndex == 0xff)
{
// First run, no interrupt allocated yet
if (_interruptCount <= RH_RF24_NUM_INTERRUPTS)
_myInterruptIndex = _interruptCount++;
else
return false; // Too many devices, not enough interrupt vectors
}
_deviceForInterrupt[_myInterruptIndex] = this;
if (_myInterruptIndex == 0)
attachInterrupt(interruptNumber, isr0, FALLING);
else if (_myInterruptIndex == 1)
attachInterrupt(interruptNumber, isr1, FALLING);
else if (_myInterruptIndex == 2)
attachInterrupt(interruptNumber, isr2, FALLING);
else
return false; // Too many devices, not enough interrupt vectors
// Ensure we get the interrupts we need, irrespective of whats in the radio_config
uint8_t int_ctl[] = {RH_RF24_MODEM_INT_STATUS_EN | RH_RF24_PH_INT_STATUS_EN, 0xff, 0xff, 0x00 };
set_properties(RH_RF24_PROPERTY_INT_CTL_ENABLE, int_ctl, sizeof(int_ctl));
// RSSI Latching should be configured in MODEM_RSSI_CONTROL in radio_config
// PKT_TX_THRESHOLD and PKT_RX_THRESHOLD should be set to about 0x30 in radio_config
// Configure important RH_RF24 registers
// Here we set up the standard packet format for use by the RH_RF24 library:
// We will use FIFO Mode, with automatic packet generation
// We have 2 fields:
// Field 1 contains only the (variable) length of field 2, with CRC
// Field 2 contains the variable length payload and the CRC
// Hmmm, having no CRC on field 1 and CRC on field 2 causes CRC errors when resetting after an odd
// number of packets! Anyway its prob a good thing at the cost of some airtime.
// Hmmm, enabling WHITEN stops it working!
uint8_t pkt_config1[] = { 0x00 };
set_properties(RH_RF24_PROPERTY_PKT_CONFIG1, pkt_config1, sizeof(pkt_config1));
uint8_t pkt_len[] = { 0x02, 0x01, 0x00 };
set_properties(RH_RF24_PROPERTY_PKT_LEN, pkt_len, sizeof(pkt_len));
uint8_t pkt_field1[] = { 0x00, 0x01, 0x00, RH_RF24_FIELD_CONFIG_CRC_START | RH_RF24_FIELD_CONFIG_SEND_CRC | RH_RF24_FIELD_CONFIG_CHECK_CRC | RH_RF24_FIELD_CONFIG_CRC_ENABLE };
set_properties(RH_RF24_PROPERTY_PKT_FIELD_1_LENGTH_12_8, pkt_field1, sizeof(pkt_field1));
uint8_t pkt_field2[] = { 0x00, sizeof(_buf), 0x00, RH_RF24_FIELD_CONFIG_CRC_START | RH_RF24_FIELD_CONFIG_SEND_CRC | RH_RF24_FIELD_CONFIG_CHECK_CRC | RH_RF24_FIELD_CONFIG_CRC_ENABLE };
set_properties(RH_RF24_PROPERTY_PKT_FIELD_2_LENGTH_12_8, pkt_field2, sizeof(pkt_field2));
// Clear all other fields so they are never used, irrespective of the radio_config
uint8_t pkt_fieldn[] = { 0x00, 0x00, 0x00, 0x00 };
set_properties(RH_RF24_PROPERTY_PKT_FIELD_3_LENGTH_12_8, pkt_fieldn, sizeof(pkt_fieldn));
set_properties(RH_RF24_PROPERTY_PKT_FIELD_4_LENGTH_12_8, pkt_fieldn, sizeof(pkt_fieldn));
set_properties(RH_RF24_PROPERTY_PKT_FIELD_5_LENGTH_12_8, pkt_fieldn, sizeof(pkt_fieldn));
// The following can be changed later by the user if necessary.
// Set up default configuration
setCRCPolynomial(CRC_16_IBM);
uint8_t syncwords[] = { 0x2d, 0xd4 };
setSyncWords(syncwords, sizeof(syncwords)); // Same as RF22's
// Reasonably fast and reliable default speed and modulation
setModemConfig(GFSK_Rb5Fd10);
// 3 would be sufficient, but this is the same as RF22's
// actualy, 4 seems to work much better for some modulations
setPreambleLength(4);
// An innocuous ISM frequency, same as RF22's
setFrequency(434.0);
// About 2.4dBm on RFM24:
setTxPower(0x10);
return true;
}
// C++ level interrupt handler for this instance
void RH_RF24::handleInterrupt()
{
uint8_t status[8];
command(RH_RF24_CMD_GET_INT_STATUS, NULL, 0, status, sizeof(status));
// Decode and handle the interrupt bits we are interested in
// if (status[0] & RH_RF24_INT_STATUS_CHIP_INT_STATUS)
if (status[0] & RH_RF24_INT_STATUS_MODEM_INT_STATUS)
{
// if (status[4] & RH_RF24_INT_STATUS_INVALID_PREAMBLE)
if (status[4] & RH_RF24_INT_STATUS_INVALID_SYNC)
{
// After INVALID_SYNC, sometimes the radio gets into a silly state and subsequently reports it for every packet
// Need to reset the radio and clear the RX FIFO, cause sometimes theres junk there too
_mode = RHModeIdle;
clearRxFifo();
clearBuffer();
}
}
if (status[0] & RH_RF24_INT_STATUS_PH_INT_STATUS)
{
if (status[2] & RH_RF24_INT_STATUS_CRC_ERROR)
{
// CRC Error
// Radio automatically went to _idleMode
_mode = RHModeIdle;
_rxBad++;
clearRxFifo();
clearBuffer();
}
if (status[2] & RH_RF24_INT_STATUS_PACKET_SENT)
{
_txGood++;
// Transmission does not automatically clear the tx buffer.
// Could retransmit if we wanted
// RH_RF24 configured to transition automatically to Idle after packet sent
_mode = RHModeIdle;
clearBuffer();
}
if (status[2] & RH_RF24_INT_STATUS_PACKET_RX)
{
// A complete message has been received with good CRC
// Get the RSSI, configured to latch at sync detect in radio_config
uint8_t modem_status[6];
command(RH_RF24_CMD_GET_MODEM_STATUS, NULL, 0, modem_status, sizeof(modem_status));
_lastRssi = modem_status[3];
_lastPreambleTime = millis();
// Save it in our buffer
readNextFragment();
// And see if we have a valid message
validateRxBuf();
// Radio will have transitioned automatically to the _idleMode
_mode = RHModeIdle;
}
if (status[2] & RH_RF24_INT_STATUS_TX_FIFO_ALMOST_EMPTY)
{
// TX FIFO almost empty, maybe send another chunk, if there is one
sendNextFragment();
}
if (status[2] & RH_RF24_INT_STATUS_RX_FIFO_ALMOST_FULL)
{
// Some more data to read, get it
readNextFragment();
}
}
}
// Check whether the latest received message is complete and uncorrupted
void RH_RF24::validateRxBuf()
{
// Validate headers etc
if (_bufLen >= RH_RF24_HEADER_LEN)
{
_rxHeaderTo = _buf[0];
_rxHeaderFrom = _buf[1];
_rxHeaderId = _buf[2];
_rxHeaderFlags = _buf[3];
if (_promiscuous ||
_rxHeaderTo == _thisAddress ||
_rxHeaderTo == RH_BROADCAST_ADDRESS)
{
// Its for us
_rxGood++;
_rxBufValid = true;
}
}
}
bool RH_RF24::clearRxFifo()
{
uint8_t fifo_clear[] = { 0x02 };
return command(RH_RF24_CMD_FIFO_INFO, fifo_clear, sizeof(fifo_clear));
}
void RH_RF24::clearBuffer()
{
_bufLen = 0;
_txBufSentIndex = 0;
_rxBufValid = false;
}
// These are low level functions that call the interrupt handler for the correct
// instance of RH_RF24.
// 3 interrupts allows us to have 3 different devices
void RH_RF24::isr0()
{
if (_deviceForInterrupt[0])
_deviceForInterrupt[0]->handleInterrupt();
}
void RH_RF24::isr1()
{
if (_deviceForInterrupt[1])
_deviceForInterrupt[1]->handleInterrupt();
}
void RH_RF24::isr2()
{
if (_deviceForInterrupt[2])
_deviceForInterrupt[2]->handleInterrupt();
}
bool RH_RF24::available()
{
if (_mode == RHModeTx)
return false;
if (!_rxBufValid)
setModeRx(); // Make sure we are receiving
return _rxBufValid;
}
bool RH_RF24::recv(uint8_t* buf, uint8_t* len)
{
if (!available())
return false;
// CAUTION: first 4 octets of _buf contain the headers
if (buf && len && (_bufLen >= RH_RF24_HEADER_LEN))
{
ATOMIC_BLOCK_START;
if (*len > _bufLen - RH_RF24_HEADER_LEN)
*len = _bufLen - RH_RF24_HEADER_LEN;
memcpy(buf, _buf + RH_RF24_HEADER_LEN, *len);
ATOMIC_BLOCK_END;
}
clearBuffer(); // Got the most recent message
return true;
}
bool RH_RF24::send(const uint8_t* data, uint8_t len)
{
if (len > RH_RF24_MAX_MESSAGE_LEN)
return false;
waitPacketSent(); // Make sure we dont interrupt an outgoing message
setModeIdle(); // Prevent RX while filling the fifo
// Put the payload in the FIFO
// First the length in fixed length field 1. This wont appear in the receiver fifo since
// we have turned off IN_FIFO in PKT_LEN
_buf[0] = len + RH_RF24_HEADER_LEN;
// Now the rest of the payload in variable length field 2
// First the headers
_buf[1] = _txHeaderTo;
_buf[2] = _txHeaderFrom;
_buf[3] = _txHeaderId;
_buf[4] = _txHeaderFlags;
// Then the message
memcpy(_buf + 1 + RH_RF24_HEADER_LEN, data, len);
_bufLen = len + 1 + RH_RF24_HEADER_LEN;
_txBufSentIndex = 0;
// Set the field 2 length to the variable payload length
uint8_t l[] = { (uint8_t)(len + RH_RF24_HEADER_LEN)};
set_properties(RH_RF24_PROPERTY_PKT_FIELD_2_LENGTH_7_0, l, sizeof(l));
sendNextFragment();
setModeTx();
return true;
}
// This is different to command() since we must not wait for CTS
bool RH_RF24::writeTxFifo(uint8_t *data, uint8_t len)
{
ATOMIC_BLOCK_START;
_spi.beginTransaction();
// First send the command
digitalWrite(_slaveSelectPin, LOW);
_spi.transfer(RH_RF24_CMD_TX_FIFO_WRITE);
// Now write any write data
while (len--)
_spi.transfer(*data++);
digitalWrite(_slaveSelectPin, HIGH);
_spi.endTransaction();
ATOMIC_BLOCK_END;
return true;
}
void RH_RF24::sendNextFragment()
{
if (_txBufSentIndex < _bufLen)
{
// Some left to send?
uint8_t len = _bufLen - _txBufSentIndex;
// But dont send too much, see how much room is left
uint8_t fifo_info[2];
command(RH_RF24_CMD_FIFO_INFO, NULL, 0, fifo_info, sizeof(fifo_info));
// fifo_info[1] is space left in TX FIFO
if (len > fifo_info[1])
len = fifo_info[1];
writeTxFifo(_buf + _txBufSentIndex, len);
_txBufSentIndex += len;
}
}
void RH_RF24::readNextFragment()
{
// Get the packet length from the RX FIFO length
uint8_t fifo_info[1];
command(RH_RF24_CMD_FIFO_INFO, NULL, 0, fifo_info, sizeof(fifo_info));
uint8_t fifo_len = fifo_info[0];
// Check for overflow
if ((_bufLen + fifo_len) > sizeof(_buf))
{
// Overflow pending
_rxBad++;
setModeIdle();
clearRxFifo();
clearBuffer();
return;
}
// So we have room
// Now read the fifo_len bytes from the RX FIFO
// This is different to command() since we dont wait for CTS
_spi.beginTransaction();
digitalWrite(_slaveSelectPin, LOW);
_spi.transfer(RH_RF24_CMD_RX_FIFO_READ);
uint8_t* p = _buf + _bufLen;
uint8_t l = fifo_len;
while (l--)
*p++ = _spi.transfer(0);
digitalWrite(_slaveSelectPin, HIGH);
_spi.endTransaction();
_bufLen += fifo_len;
}
uint8_t RH_RF24::maxMessageLength()
{
return RH_RF24_MAX_MESSAGE_LEN;
}
// Sets registers from a canned modem configuration structure
void RH_RF24::setModemRegisters(const ModemConfig* config)
{
// This list also generated with convert.pl
set_properties(0x2000, &config->prop_2000, 1);
set_properties(0x2003, &config->prop_2003, 1);
set_properties(0x2004, &config->prop_2004, 1);
set_properties(0x2005, &config->prop_2005, 1);
set_properties(0x2006, &config->prop_2006, 1);
set_properties(0x200b, &config->prop_200b, 1);
set_properties(0x200c, &config->prop_200c, 1);
set_properties(0x2018, &config->prop_2018, 1);
set_properties(0x201e, &config->prop_201e, 1);
set_properties(0x201f, &config->prop_201f, 1);
set_properties(0x2022, &config->prop_2022, 1);
set_properties(0x2023, &config->prop_2023, 1);
set_properties(0x2024, &config->prop_2024, 1);
set_properties(0x2025, &config->prop_2025, 1);
set_properties(0x2026, &config->prop_2026, 1);
set_properties(0x2027, &config->prop_2027, 1);
set_properties(0x2028, &config->prop_2028, 1);
set_properties(0x2029, &config->prop_2029, 1);
set_properties(0x202d, &config->prop_202d, 1);
set_properties(0x202e, &config->prop_202e, 1);
set_properties(0x202f, &config->prop_202f, 1);
set_properties(0x2030, &config->prop_2030, 1);
set_properties(0x2031, &config->prop_2031, 1);
set_properties(0x2035, &config->prop_2035, 1);
set_properties(0x2038, &config->prop_2038, 1);
set_properties(0x2039, &config->prop_2039, 1);
set_properties(0x203a, &config->prop_203a, 1);
set_properties(0x203b, &config->prop_203b, 1);
set_properties(0x203c, &config->prop_203c, 1);
set_properties(0x203d, &config->prop_203d, 1);
set_properties(0x203e, &config->prop_203e, 1);
set_properties(0x203f, &config->prop_203f, 1);
set_properties(0x2040, &config->prop_2040, 1);
set_properties(0x2043, &config->prop_2043, 1);
set_properties(0x2045, &config->prop_2045, 1);
set_properties(0x2046, &config->prop_2046, 1);
set_properties(0x2047, &config->prop_2047, 1);
set_properties(0x204e, &config->prop_204e, 1);
set_properties(0x2100, &config->prop_2100, 1);
set_properties(0x2101, &config->prop_2101, 1);
set_properties(0x2102, &config->prop_2102, 1);
set_properties(0x2103, &config->prop_2103, 1);
set_properties(0x2104, &config->prop_2104, 1);
set_properties(0x2105, &config->prop_2105, 1);
set_properties(0x2106, &config->prop_2106, 1);
set_properties(0x2107, &config->prop_2107, 1);
set_properties(0x2108, &config->prop_2108, 1);
set_properties(0x2109, &config->prop_2109, 1);
set_properties(0x210a, &config->prop_210a, 1);
set_properties(0x210b, &config->prop_210b, 1);
set_properties(0x210c, &config->prop_210c, 1);
set_properties(0x210d, &config->prop_210d, 1);
set_properties(0x210e, &config->prop_210e, 1);
set_properties(0x210f, &config->prop_210f, 1);
set_properties(0x2110, &config->prop_2110, 1);
set_properties(0x2111, &config->prop_2111, 1);
set_properties(0x2112, &config->prop_2112, 1);
set_properties(0x2113, &config->prop_2113, 1);
set_properties(0x2114, &config->prop_2114, 1);
set_properties(0x2115, &config->prop_2115, 1);
set_properties(0x2116, &config->prop_2116, 1);
set_properties(0x2117, &config->prop_2117, 1);
set_properties(0x2118, &config->prop_2118, 1);
set_properties(0x2119, &config->prop_2119, 1);
set_properties(0x211a, &config->prop_211a, 1);
set_properties(0x211b, &config->prop_211b, 1);
set_properties(0x211c, &config->prop_211c, 1);
set_properties(0x211d, &config->prop_211d, 1);
set_properties(0x211e, &config->prop_211e, 1);
set_properties(0x211f, &config->prop_211f, 1);
set_properties(0x2120, &config->prop_2120, 1);
set_properties(0x2121, &config->prop_2121, 1);
set_properties(0x2122, &config->prop_2122, 1);
set_properties(0x2123, &config->prop_2123, 1);
set_properties(0x2203, &config->prop_2203, 1);
set_properties(0x2300, &config->prop_2300, 1);
set_properties(0x2301, &config->prop_2301, 1);
set_properties(0x2303, &config->prop_2303, 1);
set_properties(0x2304, &config->prop_2304, 1);
set_properties(0x2305, &config->prop_2305, 1);
}
// Set one of the canned Modem configs
// Returns true if its a valid choice
bool RH_RF24::setModemConfig(ModemConfigChoice index)
{
if (index > (signed int)(sizeof(MODEM_CONFIG_TABLE) / sizeof(ModemConfig)))
return false;
ModemConfig cfg;
memcpy_P(&cfg, &MODEM_CONFIG_TABLE[index], sizeof(RH_RF24::ModemConfig));
setModemRegisters(&cfg);
return true;
}
void RH_RF24::setPreambleLength(uint16_t bytes)
{
uint8_t config[] = { (uint8_t)bytes, 0x14, 0x00, 0x00,
RH_RF24_PREAMBLE_FIRST_1 | RH_RF24_PREAMBLE_LENGTH_BYTES | RH_RF24_PREAMBLE_STANDARD_1010};
set_properties(RH_RF24_PROPERTY_PREAMBLE_TX_LENGTH, config, sizeof(config));
}
bool RH_RF24::setCRCPolynomial(CRCPolynomial polynomial)
{
if (polynomial >= CRC_NONE &&
polynomial <= CRC_Castagnoli)
{
// Caution this only has effect if CRCs are enabled
uint8_t config[] = { (uint8_t)((polynomial & RH_RF24_CRC_MASK) | RH_RF24_CRC_SEED_ALL_1S) };
return set_properties(RH_RF24_PROPERTY_PKT_CRC_CONFIG, config, sizeof(config));
}
else
return false;
}
void RH_RF24::setSyncWords(const uint8_t* syncWords, uint8_t len)
{
if (len > 4 || len < 1)
return;
uint8_t config[] = { (uint8_t)(len-1), 0, 0, 0, 0};
memcpy(config+1, syncWords, len);
set_properties(RH_RF24_PROPERTY_SYNC_CONFIG, config, sizeof(config));
}
bool RH_RF24::setFrequency(float centre, float afcPullInRange)
{
// See Si446x Data Sheet section 5.3.1
// Also the Si446x PLL Synthesizer / VCO_CNT Calculator Rev 0.4
uint8_t outdiv;
uint8_t band;
if (_deviceType == 0x4460 ||
_deviceType == 0x4461 ||
_deviceType == 0x4463)
{
// Non-continuous frequency bands
if (centre <= 1050.0 && centre >= 850.0)
outdiv = 4, band = 0;
else if (centre <= 525.0 && centre >= 425.0)
outdiv = 8, band = 2;
else if (centre <= 350.0 && centre >= 284.0)
outdiv = 12, band = 3;
else if (centre <= 175.0 && centre >= 142.0)
outdiv = 24, band = 5;
else
return false;
}
else
{
// 0x4464
// Continuous frequency bands
if (centre <= 960.0 && centre >= 675.0)
outdiv = 4, band = 1;
else if (centre < 675.0 && centre >= 450.0)
outdiv = 6, band = 2;
else if (centre < 450.0 && centre >= 338.0)
outdiv = 8, band = 3;
else if (centre < 338.0 && centre >= 225.0)
outdiv = 12, band = 4;
else if (centre < 225.0 && centre >= 169.0)
outdiv = 16, band = 4;
else if (centre < 169.0 && centre >= 119.0)
outdiv = 24, band = 5;
else
return false;
}
// Set the MODEM_CLKGEN_BAND (not documented)
uint8_t modem_clkgen[] = { (uint8_t)(band + 8) };
if (!set_properties(RH_RF24_PROPERTY_MODEM_CLKGEN_BAND, modem_clkgen, sizeof(modem_clkgen)))
return false;
centre *= 1000000.0; // Convert to Hz
// Now generate the RF frequency properties
// Need the Xtal/XO freq from the radio_config file:
uint32_t xtal_frequency[1] = RADIO_CONFIGURATION_DATA_RADIO_XO_FREQ;
unsigned long f_pfd = 2 * xtal_frequency[0] / outdiv;
unsigned int n = ((unsigned int)(centre / f_pfd)) - 1;
float ratio = centre / (float)f_pfd;
float rest = ratio - (float)n;
unsigned long m = (unsigned long)(rest * 524288UL);
unsigned int m2 = m / 0x10000;
unsigned int m1 = (m - m2 * 0x10000) / 0x100;
unsigned int m0 = (m - m2 * 0x10000 - m1 * 0x100);
// PROP_FREQ_CONTROL_GROUP
uint8_t freq_control[] = { (uint8_t)n, (uint8_t)m2, (uint8_t)m1, (uint8_t)m0 };
return set_properties(RH_RF24_PROPERTY_FREQ_CONTROL_INTE, freq_control, sizeof(freq_control));
}
void RH_RF24::setModeIdle()
{
if (_mode != RHModeIdle)
{
// Set the antenna switch pins using the GPIO, assuming we have an RFM module with antenna switch
uint8_t config[] = { RH_RF24_GPIO_HIGH, RH_RF24_GPIO_HIGH };
command(RH_RF24_CMD_GPIO_PIN_CFG, config, sizeof(config));
uint8_t state[] = { _idleMode };
command(RH_RF24_CMD_REQUEST_DEVICE_STATE, state, sizeof(state));
_mode = RHModeIdle;
}
}
bool RH_RF24::sleep()
{
if (_mode != RHModeSleep)
{
uint8_t state[] = { RH_RF24_DEVICE_STATE_SLEEP };
command(RH_RF24_CMD_REQUEST_DEVICE_STATE, state, sizeof(state));
_mode = RHModeSleep;
}
return true;
}
void RH_RF24::setModeRx()
{
if (_mode != RHModeRx)
{
// CAUTION: we cant clear the rx buffers here, else we set up a race condition
// with the _rxBufValid test in available()
// Tell the receiver the max data length we will accept (a TX may have changed it)
uint8_t l[] = { sizeof(_buf) };
set_properties(RH_RF24_PROPERTY_PKT_FIELD_2_LENGTH_7_0, l, sizeof(l));
// Set the antenna switch pins using the GPIO, assuming we have an RFM module with antenna switch
uint8_t gpio_config[] = { RH_RF24_GPIO_HIGH, RH_RF24_GPIO_LOW };
command(RH_RF24_CMD_GPIO_PIN_CFG, gpio_config, sizeof(gpio_config));
uint8_t rx_config[] = { 0x00, RH_RF24_CONDITION_RX_START_IMMEDIATE, 0x00, 0x00, _idleMode, _idleMode, _idleMode};
command(RH_RF24_CMD_START_RX, rx_config, sizeof(rx_config));
_mode = RHModeRx;
}
}
void RH_RF24::setModeTx()
{
if (_mode != RHModeTx)
{
// Set the antenna switch pins using the GPIO, assuming we have an RFM module with antenna switch
uint8_t config[] = { RH_RF24_GPIO_LOW, RH_RF24_GPIO_HIGH };
command(RH_RF24_CMD_GPIO_PIN_CFG, config, sizeof(config));
uint8_t tx_params[] = { 0x00,
(uint8_t)((_idleMode << 4) | RH_RF24_CONDITION_RETRANSMIT_NO | RH_RF24_CONDITION_START_IMMEDIATE)};
command(RH_RF24_CMD_START_TX, tx_params, sizeof(tx_params));
_mode = RHModeTx;
}
}
void RH_RF24::setTxPower(uint8_t power)
{
uint8_t pa_bias_clkduty = 0;
// These calculations valid for advertised power from Si chips at Vcc = 3.3V
// you may get lower power from RFM modules, depending on Vcc voltage, antenna etc
if (_deviceType == 0x4460)
{
// 0x4f = 13dBm
pa_bias_clkduty = 0xc0;
if (power > 0x4f)
power = 0x4f;
}
else if (_deviceType == 0x4461)
{
// 0x7f = 16dBm
pa_bias_clkduty = 0xc0;
if (power > 0x7f)
power = 0x7f;
}
else if (_deviceType == 0x4463 || _deviceType == 0x4464 )
{
// 0x7f = 20dBm
pa_bias_clkduty = 0x00; // Per WDS suggestion
if (power > 0x7f)
power = 0x7f;
}
uint8_t power_properties[] = {0x18, 0x00, 0x00 }; // PA_MODE from WDS sugggestions (why?)
power_properties[1] = power;
power_properties[2] = pa_bias_clkduty;
set_properties(RH_RF24_PROPERTY_PA_MODE, power_properties, sizeof(power_properties));
}
// Caution: There was a bug in A1 hardware that will not handle 1 byte commands.
bool RH_RF24::command(uint8_t cmd, const uint8_t* write_buf, uint8_t write_len, uint8_t* read_buf, uint8_t read_len)
{
bool done = false;
ATOMIC_BLOCK_START;
// First send the command
_spi.beginTransaction();
digitalWrite(_slaveSelectPin, LOW);
_spi.transfer(cmd);
// Now write any write data
if (write_buf && write_len)
{
while (write_len--)
_spi.transfer(*write_buf++);
}
// Sigh, the RFM26 at least has problems if we deselect too quickly :-(
// Innocuous timewaster:
digitalWrite(_slaveSelectPin, LOW);
// And finalise the command
digitalWrite(_slaveSelectPin, HIGH);
uint16_t count; // Number of times we have tried to get CTS
for (count = 0; !done && count < RH_RF24_CTS_RETRIES; count++)
{
// Wait for the CTS
digitalWrite(_slaveSelectPin, LOW);
_spi.transfer(RH_RF24_CMD_READ_BUF);
if (_spi.transfer(0) == RH_RF24_REPLY_CTS)
{
// Now read any expected reply data
if (read_buf && read_len)
{
while (read_len--)
{
*read_buf++ = _spi.transfer(0);
}
}
done = true;
}
// Sigh, the RFM26 at least has problems if we deselect too quickly :-(
// Innocuous timewaster:
digitalWrite(_slaveSelectPin, LOW);
// Finalise the read
digitalWrite(_slaveSelectPin, HIGH);
}
_spi.endTransaction();
ATOMIC_BLOCK_END;
return done; // False if too many attempts at CTS
}
bool RH_RF24::configure(const uint8_t* commands)
{
// Command strings are constructed in radio_config_Si4460.h
// Each command starts with a count of the bytes in that command:
// <bytecount> <command> <bytecount-2 bytes of args/data>
uint8_t next_cmd_len;
while (memcpy_P(&next_cmd_len, commands, 1), next_cmd_len > 0)
{
uint8_t buf[20]; // As least big as the biggest permitted command/property list of 15
memcpy_P(buf, commands+1, next_cmd_len);
command(buf[0], buf+1, next_cmd_len - 1);
commands += (next_cmd_len + 1);
}
return true;
}
void RH_RF24::power_on_reset()
{
// Sigh: its necessary to control the SDN pin to reset this ship.
// Tying it to GND does not produce reliable startups
// Per Si4464 Data Sheet 3.3.2
digitalWrite(_sdnPin, HIGH); // So we dont get a glitch after setting pinMode OUTPUT
pinMode(_sdnPin, OUTPUT);
delay(10);
digitalWrite(_sdnPin, LOW);
delay(10);
}
bool RH_RF24::cmd_clear_all_interrupts()
{
uint8_t write_buf[] = { 0x00, 0x00, 0x00 };
return command(RH_RF24_CMD_GET_INT_STATUS, write_buf, sizeof(write_buf));
}
bool RH_RF24::set_properties(uint16_t firstProperty, const uint8_t* values, uint8_t count)
{
uint8_t buf[15];
buf[0] = firstProperty >> 8; // GROUP
buf[1] = count; // NUM_PROPS
buf[2] = firstProperty & 0xff; // START_PROP
uint8_t i;
for (i = 0; i < 12 && i < count; i++)
buf[3 + i] = values[i]; // DATAn
return command(RH_RF24_CMD_SET_PROPERTY, buf, count + 3);
}
bool RH_RF24::get_properties(uint16_t firstProperty, uint8_t* values, uint8_t count)
{
if (count > 16)
count = 16;
uint8_t buf[3];
buf[0] = firstProperty >> 8; // GROUP
buf[1] = count; // NUM_PROPS
buf[2] = firstProperty & 0xff; // START_PROP
return command(RH_RF24_CMD_GET_PROPERTY, buf, sizeof(buf), values, count);
}
float RH_RF24::get_temperature()
{
uint8_t write_buf[] = { 0x10 };
uint8_t read_buf[8];
// Takes nearly 4ms
command(RH_RF24_CMD_GET_ADC_READING, write_buf, sizeof(write_buf), read_buf, sizeof(read_buf));
uint16_t temp_adc = (read_buf[4] << 8) | read_buf[5];
return ((800 + read_buf[6]) / 4096.0) * temp_adc - ((read_buf[7] / 2) + 256);
}
float RH_RF24::get_battery_voltage()
{
uint8_t write_buf[] = { 0x08 };
uint8_t read_buf[8];
// Takes nearly 4ms
command(RH_RF24_CMD_GET_ADC_READING, write_buf, sizeof(write_buf), read_buf, sizeof(read_buf));
uint16_t battery_adc = (read_buf[2] << 8) | read_buf[3];
return 3.0 * battery_adc / 1280;
}
float RH_RF24::get_gpio_voltage(uint8_t gpio)
{
uint8_t write_buf[] = { 0x04 };
uint8_t read_buf[8];
write_buf[0] |= (gpio & 0x3);
// Takes nearly 4ms
command(RH_RF24_CMD_GET_ADC_READING, write_buf, sizeof(write_buf), read_buf, sizeof(read_buf));
uint16_t gpio_adc = (read_buf[0] << 8) | read_buf[1];
return 3.0 * gpio_adc / 1280;
}
uint8_t RH_RF24::frr_read(uint8_t reg)
{
uint8_t ret;
// Do not wait for CTS
ATOMIC_BLOCK_START;
_spi.beginTransaction();
// First send the command
digitalWrite(_slaveSelectPin, LOW);
_spi.transfer(RH_RF24_PROPERTY_FRR_CTL_A_MODE + reg);
// Get the fast response
ret = _spi.transfer(0);
digitalWrite(_slaveSelectPin, HIGH);
_spi.endTransaction();
ATOMIC_BLOCK_END;
return ret;
}
// List of command replies to be printed by prinRegisters()
PROGMEM static const RH_RF24::CommandInfo commands[] =
{
{ RH_RF24_CMD_PART_INFO, 8 },
{ RH_RF24_CMD_FUNC_INFO, 6 },
{ RH_RF24_CMD_GPIO_PIN_CFG, 7 },
{ RH_RF24_CMD_FIFO_INFO, 2 },
{ RH_RF24_CMD_PACKET_INFO, 2 },
{ RH_RF24_CMD_GET_INT_STATUS, 8 },
{ RH_RF24_CMD_GET_PH_STATUS, 2 },
{ RH_RF24_CMD_GET_MODEM_STATUS, 8 },
{ RH_RF24_CMD_GET_CHIP_STATUS, 3 },
{ RH_RF24_CMD_REQUEST_DEVICE_STATE, 2 },
};
#define NUM_COMMAND_INFO (sizeof(commands)/sizeof(CommandInfo))
// List of properties to be printed by printRegisters()
PROGMEM static const uint16_t properties[] =
{
RH_RF24_PROPERTY_GLOBAL_XO_TUNE,
RH_RF24_PROPERTY_GLOBAL_CLK_CFG,
RH_RF24_PROPERTY_GLOBAL_LOW_BATT_THRESH,
RH_RF24_PROPERTY_GLOBAL_CONFIG,
RH_RF24_PROPERTY_GLOBAL_WUT_CONFIG,
RH_RF24_PROPERTY_GLOBAL_WUT_M_15_8,
RH_RF24_PROPERTY_GLOBAL_WUT_M_7_0,
RH_RF24_PROPERTY_GLOBAL_WUT_R,
RH_RF24_PROPERTY_GLOBAL_WUT_LDC,
RH_RF24_PROPERTY_INT_CTL_ENABLE,
RH_RF24_PROPERTY_INT_CTL_PH_ENABLE,
RH_RF24_PROPERTY_INT_CTL_MODEM_ENABLE,
RH_RF24_PROPERTY_INT_CTL_CHIP_ENABLE,
RH_RF24_PROPERTY_FRR_CTL_A_MODE,
RH_RF24_PROPERTY_FRR_CTL_B_MODE,
RH_RF24_PROPERTY_FRR_CTL_C_MODE,
RH_RF24_PROPERTY_FRR_CTL_D_MODE,
RH_RF24_PROPERTY_PREAMBLE_TX_LENGTH,
RH_RF24_PROPERTY_PREAMBLE_CONFIG_STD_1,
RH_RF24_PROPERTY_PREAMBLE_CONFIG_NSTD,
RH_RF24_PROPERTY_PREAMBLE_CONFIG_STD_2,
RH_RF24_PROPERTY_PREAMBLE_CONFIG,
RH_RF24_PROPERTY_PREAMBLE_PATTERN_31_24,
RH_RF24_PROPERTY_PREAMBLE_PATTERN_23_16,
RH_RF24_PROPERTY_PREAMBLE_PATTERN_15_8,
RH_RF24_PROPERTY_PREAMBLE_PATTERN_7_0,
RH_RF24_PROPERTY_SYNC_CONFIG,
RH_RF24_PROPERTY_SYNC_BITS_31_24,
RH_RF24_PROPERTY_SYNC_BITS_23_16,
RH_RF24_PROPERTY_SYNC_BITS_15_8,
RH_RF24_PROPERTY_SYNC_BITS_7_0,
RH_RF24_PROPERTY_PKT_CRC_CONFIG,
RH_RF24_PROPERTY_PKT_CONFIG1,
RH_RF24_PROPERTY_PKT_LEN,
RH_RF24_PROPERTY_PKT_LEN_FIELD_SOURCE,
RH_RF24_PROPERTY_PKT_LEN_ADJUST,
RH_RF24_PROPERTY_PKT_TX_THRESHOLD,
RH_RF24_PROPERTY_PKT_RX_THRESHOLD,
RH_RF24_PROPERTY_PKT_FIELD_1_LENGTH_12_8,
RH_RF24_PROPERTY_PKT_FIELD_1_LENGTH_7_0,
RH_RF24_PROPERTY_PKT_FIELD_1_CONFIG,
RH_RF24_PROPERTY_PKT_FIELD_1_CRC_CONFIG,
RH_RF24_PROPERTY_PKT_FIELD_2_LENGTH_12_8,
RH_RF24_PROPERTY_PKT_FIELD_2_LENGTH_7_0,
RH_RF24_PROPERTY_PKT_FIELD_2_CONFIG,
RH_RF24_PROPERTY_PKT_FIELD_2_CRC_CONFIG,
RH_RF24_PROPERTY_PKT_FIELD_3_LENGTH_12_8,
RH_RF24_PROPERTY_PKT_FIELD_3_LENGTH_7_0,
RH_RF24_PROPERTY_PKT_FIELD_3_CONFIG,
RH_RF24_PROPERTY_PKT_FIELD_3_CRC_CONFIG,
RH_RF24_PROPERTY_PKT_FIELD_4_LENGTH_12_8,
RH_RF24_PROPERTY_PKT_FIELD_4_LENGTH_7_0,
RH_RF24_PROPERTY_PKT_FIELD_4_CONFIG,
RH_RF24_PROPERTY_PKT_FIELD_4_CRC_CONFIG,
RH_RF24_PROPERTY_PKT_FIELD_5_LENGTH_12_8,
RH_RF24_PROPERTY_PKT_FIELD_5_LENGTH_7_0,
RH_RF24_PROPERTY_PKT_FIELD_5_CONFIG,
RH_RF24_PROPERTY_PKT_FIELD_5_CRC_CONFIG,
RH_RF24_PROPERTY_PKT_RX_FIELD_1_LENGTH_12_8,
RH_RF24_PROPERTY_PKT_RX_FIELD_1_LENGTH_7_0,
RH_RF24_PROPERTY_PKT_RX_FIELD_1_CONFIG,
RH_RF24_PROPERTY_PKT_RX_FIELD_1_CRC_CONFIG,
RH_RF24_PROPERTY_PKT_RX_FIELD_2_LENGTH_12_8,
RH_RF24_PROPERTY_PKT_RX_FIELD_2_LENGTH_7_0,
RH_RF24_PROPERTY_PKT_RX_FIELD_2_CONFIG,
RH_RF24_PROPERTY_PKT_RX_FIELD_2_CRC_CONFIG,
RH_RF24_PROPERTY_PKT_RX_FIELD_3_LENGTH_12_8,
RH_RF24_PROPERTY_PKT_RX_FIELD_3_LENGTH_7_0,
RH_RF24_PROPERTY_PKT_RX_FIELD_3_CONFIG,
RH_RF24_PROPERTY_PKT_RX_FIELD_3_CRC_CONFIG,
RH_RF24_PROPERTY_PKT_RX_FIELD_4_LENGTH_12_8,
RH_RF24_PROPERTY_PKT_RX_FIELD_4_LENGTH_7_0,
RH_RF24_PROPERTY_PKT_RX_FIELD_4_CONFIG,
RH_RF24_PROPERTY_PKT_RX_FIELD_4_CRC_CONFIG,
RH_RF24_PROPERTY_PKT_RX_FIELD_5_LENGTH_12_8,
RH_RF24_PROPERTY_PKT_RX_FIELD_5_LENGTH_7_0,
RH_RF24_PROPERTY_PKT_RX_FIELD_5_CONFIG,
RH_RF24_PROPERTY_PKT_RX_FIELD_5_CRC_CONFIG,
RH_RF24_PROPERTY_MODEM_MOD_TYPE,
RH_RF24_PROPERTY_MODEM_MAP_CONTROL,
RH_RF24_PROPERTY_MODEM_DSM_CTRL,
RH_RF24_PROPERTY_MODEM_DATA_RATE_2,
RH_RF24_PROPERTY_MODEM_DATA_RATE_1,
RH_RF24_PROPERTY_MODEM_DATA_RATE_0,
RH_RF24_PROPERTY_MODEM_TX_NCO_MODE_3,
RH_RF24_PROPERTY_MODEM_TX_NCO_MODE_2,
RH_RF24_PROPERTY_MODEM_TX_NCO_MODE_1,
RH_RF24_PROPERTY_MODEM_TX_NCO_MODE_0,