summaryrefslogtreecommitdiff
path: root/python-chip-io.spec
blob: 9bd54b8feb1ecba89174e1e03b5ef673416bc437 (plain)
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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
%global _empty_manifest_terminate_build 0
Name:		python-CHIP-IO
Version:	0.7.1
Release:	1
Summary:	A module to control CHIP IO channels
License:	MIT
URL:		https://github.com/xtacocorex/CHIP_IO/
Source0:	https://mirrors.nju.edu.cn/pypi/web/packages/f9/92/600c49e1bc15706aa4517074ed193228cd2d2b85d0dd22c4098dc02cc512/CHIP_IO-0.7.1.tar.gz
BuildArch:	noarch


%description
A CHIP GPIO library
Debian File Installation:
There are now pre-compiled binary deb files for the CHIP that do not require any build tools on a CHIP/CHIP Pro.
Go to this page: https://github.com/xtacocorex/CHIP_IO/releases/latest
Or
Go to this page: https://xtacocorex.github.io/chip_io_releases/index.html
Download the .deb file for the version of Python you are running.
Then install with dpkg, like the following example:
    sudo dpkg -i python-chip-io_0.5.9-1_armhf.deb
Manual Installation::
For Python2.7::
    sudo apt-get update
    sudo apt-get install git build-essential python-dev python-pip flex bison chip-dt-overlays -y
    git clone git://github.com/xtacocorex/CHIP_IO.git
    cd CHIP_IO
    sudo python setup.py install
    cd ..
For Python3::
    sudo apt-get update
    sudo apt-get install git build-essential python3-dev python3-pip flex bison chip-dt-overlays -y
    git clone git://github.com/xtacocorex/CHIP_IO.git
    cd CHIP_IO
    sudo python3 setup.py install
    cd ..
PyPi Installation::
For Python2.7::
    sudo apt-get update
    sudo apt-get install git build-essential python-dev python-pip flex bison chip-dt-overlays -y
    sudo pip install CHIP-IO
For Python3::
    sudo apt-get update
    sudo apt-get install git build-essential python3-dev python3-pip flex bison chip-dt-overlays -y
    sudo pip3 install CHIP-IO
**Usage**
Using the library is very similar to the excellent RPi.GPIO library used on the Raspberry Pi. Below are some examples.
All scripts that require GPIO, PWM (HW and/or SW), and Overlay Manager need to be run with super user permissions!
**Allowable Pin Names for the Library**
The following "table" is the allowable pin names that are able to be used by the library. The Name column is the normal name used on the CHIP Headers, the Alt Name column is the value used by the PocketCHIP header (if it's broken out), and the Key is the Header and Pin Number the the Pin is physically located.  Either of these 3 means is able to specify a pin in CHIP_IO.
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CHIP (Main Name) | PocketCHIP/CHIP Pro Name | Key (Alt Name) | HW Support      | Edge Detect     |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | TWI1-SDA         | KPD-I2C-SDA              | U13_9          | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | TWI1-SCK         | KPD-I2C-SCL              | U13_11         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D2           | UART2-TX                 | U13_17         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | PWM0             | PWM0                     | U13_18         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | PWM1             | PWM1                     | EINT13         | CHIP PRO        | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D4           | UART2-CTS                | U13_19         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D3           | UART2-RX                 | U13_20         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D6           | LCD-D6                   | U13_21         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D5           | UART2-RTS                | U13_22         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D10          | LCD-D10                  | U13_23         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D7           | LCD-D7                   | U13_24         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D12          | LCD-D12                  | U13_25         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D11          | LCD-D11                  | U13_26         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D14          | LCD-D14                  | U13_27         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D13          | LCD-D13                  | U13_28         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D18          | LCD-D18                  | U13_29         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D15          | LCD-D15                  | U13_30         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D20          | LCD-D20                  | U13_31         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D19          | LCD-D19                  | U13_32         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D22          | LCD-D22                  | U13_33         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D21          | LCD-D21                  | U13_34         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-CLK          | LCD-CLK                  | U13_35         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D23          | LCD-D23                  | U13_36         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-VSYNC        | LCD-VSYNC                | U13_37         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-HSYNC        | LCD-HSYNC                | U13_38         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-DE           | LCD-DE                   | U13_40         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | UART1-TX         | UART-TX                  | U14_3          | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | UART1-RX         | UART-RX                  | U14_5          | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LRADC            | ADC                      | U14_11         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P0           | XIO-P0                   | U14_13         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P1           | XIO-P1                   | U14_14         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P2           | GPIO1                    | U14_15         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P3           | GPIO2                    | U14_16         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P4           | GPIO3                    | U14_17         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P5           | GPIO4                    | U14_18         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P6           | GPIO5                    | U14_19         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P7           | GPIO6                    | U14_20         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | AP-EINT1         | KPD-INT                  | U14_23         | CHIP/CHIP PRO   | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | AP-EINT3         | AP-INT3                  | U14_24         | CHIP/CHIP PRO   | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | TWI2-SDA         | I2C-SDA                  | U14_25         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | TWI2-SCK         | I2C-SCL                  | U14_26         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSIPCK           | SPI-SEL                  | U14_27         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSICK            | SPI-CLK                  | U14_28         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSIHSYNC         | SPI-MOSI                 | U14_29         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSIVSYNC         | SPI-MISO                 | U14_30         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID0            | D0                       | U14_31         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID1            | D1                       | U14_32         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID2            | D2                       | U14_33         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID3            | D3                       | U14_34         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID4            | D4                       | U14_35         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID5            | D5                       | U14_36         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID6            | D6                       | U14_37         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID7            | D7                       | U14_38         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | I2S-MCLK         | EINT19                   | 21             | CHIP PRO        | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | I2S-BCLK         | I2S-BCLK                 | 22             | CHIP PRO        | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | I2S-LCLK         | I2S-LCLK                 | 23             | CHIP PRO        | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | I2S-DO           | EINT19                   | 24             | CHIP PRO        | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | I2S-DI           | EINT24                   | 25             | CHIP PRO        | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
**GPIO Setup**
Import the library, and setup as GPIO.OUT or GPIO.IN::
    import CHIP_IO.GPIO as GPIO
    GPIO.setup("CSID0", GPIO.OUT)
You can also refer to the pin number::
    GPIO.setup("U14_31", GPIO.OUT)
You can also refer to the bin based upon its alternate name::
    GPIO.setup("GPIO1", GPIO.IN)
**GPIO Miscellaneous**
Debug can be enabled/disabled by the following command::
    # Enable Debug
    GPIO.toggle_debug()
You can determine if the hardware is a CHIP/CHIP Pro using the following::
    # Determine hardware
    # 0 For CHIP
    # 1 For CHIP Pro
    GPIO.is_chip_pro()
**GPIO Output**
Setup the pin for output, and write GPIO.HIGH or GPIO.LOW. Or you can use 1 or 0.::
    import CHIP_IO.GPIO as GPIO
    GPIO.setup("CSID0", GPIO.OUT)
    GPIO.output("CSID0", GPIO.HIGH)
**GPIO Input**
Inputs work similarly to outputs.::
    import CHIP_IO.GPIO as GPIO
    GPIO.setup("CSID0", GPIO.IN)
Other options when setting up pins::
    # Specify pull up/pull down settings on a pin
    GPIO.setup("CSID0", GPIO.IN, pull_up_down=GPIO.PUD_UP)
    # Specify initial value for an output
    GPIO.setup("CSID0", GPIO.OUT, initial=1)
Pull Up/Down values are only for pins that are provided by the R8, the XIO are not capable of this.  The allowable values are: PUD_OFF, PUD_UP, and PUD_DOWN.
Polling inputs::
    if GPIO.input("CSID0"):
        print("HIGH")
    else:
        print("LOW")
Read lots of data::
    # Get 8 bits of data in one shot
    mybyte = GPIO.read_byte("LCD-D3")
    # Get 16 bits of data in one shot
    myword = GPIO.read_word("XIO-P4")
This code was initially added by brettcvz and I cleaned it up and expanded it.
You can quickly change a pins direction::
    GPIO.direction("XIO-P3", GPIO.OUT)
    GPIO.direction("XIO-P3", GPIO.IN)
You can also re-setup a pin in order to change direction, note that this is a slower operation::
    GPIO.setup("XIO-P3", GPIO.OUT)
    GPIO.setup("XIO-P3", GPIO.IN)
The edge detection code below only works for the AP-EINT1, AP-EINT3, and XPO Pins on the CHIP.
Waiting for an edge (GPIO.RISING, GPIO.FALLING, or GPIO.BOTH::
    GPIO.wait_for_edge(channel, GPIO.RISING)
Detecting events::
    GPIO.setup("XIO-P0", GPIO.IN)
    GPIO.add_event_detect("XIO-P0", GPIO.FALLING)
    #your amazing code here
    #detect wherever:
    if GPIO.event_detected("XIO-P0"):
        print "event detected!"
CHIP_IO can also handle adding callback functions on any pin that supports edge detection.  Note that only one callback function can be specified per Pin, if you try to set more, an exception will be thrown.::
    def mycallback(channel):
        print("we hit the edge we want")
    GPIO.setup("GPIO3", GPIO.IN)
    # Add Event Detect and Callback Separately for Falling Edge
    GPIO.add_event_detect("GPIO3", GPIO.FALLING)
    GPIO.add_event_callback("GPIO3", mycallback)
    # Add Event Detect and Callback Separately for Rising Edge
    GPIO.add_event_detect("GPIO3", GPIO.RISING)
    GPIO.add_event_callback("GPIO3", mycallback)
    # Add Callback for Both Edges using the add_event_detect() method
    GPIO.add_event_detect("GPIO3", GPIO.BOTH, mycallback)
    # Remove callback with the following
    GPIO.remove_event_detect("GPIO3")
    # bouncetime is also able to be set for both GPIO.add_event_detect() and GPIO.add_event_callback()
    GPIO.add_event_detect("GPIO3", GPIO.FALLING, bouncetime=300)
    GPIO.add_event_callback("GPIO3", GPIO.RISING, mycallback, bouncetime=300)
**GPIO Cleanup**
To clean up the GPIO when done, do the following::
    # Clean up every exported GPIO Pin
    GPIO.cleanup()
    # Clean up a single pin (keeping everything else intact)
    GPIO.cleanup("XIO-P0")
**PWM**::
Hardware PWM requires a DTB Overlay loaded on the CHIP to allow the kernel to know there is a PWM device available to use.
    import CHIP_IO.PWM as PWM
    # Determine hardware
    # 0 For CHIP
    # 1 For CHIP Pro
    PWM.is_chip_pro()
    # Enable/Disable Debug
    PWM.toggle_debug()
    #PWM.start(channel, duty, freq=2000, polarity=0)
    #duty values are valid 0 (off) to 100 (on)
    PWM.start("PWM0", 50)
    PWM.set_duty_cycle("PWM0", 25.5)
    PWM.set_frequency("PWM0", 10)
    # To stop PWM
    PWM.stop("PWM0")
    PWM.cleanup()
    #For specific polarity: this example sets polarity to 1 on start:
    PWM.start("PWM0", 50, 2000, 1)
**SOFTPWM**::
    import CHIP_IO.SOFTPWM as SPWM
    # Determine hardware
    # 0 For CHIP
    # 1 For CHIP Pro
    SPWM.is_chip_pro()
    # Enable/Disable Debug
    SPWM.toggle_debug()
    #SPWM.start(channel, duty, freq=2000, polarity=0)
    #duty values are valid 0 (off) to 100 (on)
    #you can choose any pin
    SPWM.start("XIO-P7", 50)
    SPWM.set_duty_cycle("XIO-P7", 25.5)
    SPWM.set_frequency("XIO-P7", 10)
    # To Stop SPWM
    SPWM.stop("XIO-P7")
    # Cleanup
    SPWM.cleanup()
    #For specific polarity: this example sets polarity to 1 on start:
    SPWM.start("XIO-P7", 50, 2000, 1)
Use SOFTPWM at low speeds (hundreds of Hz) for the best results. Do not use for anything that needs high precision or reliability.
If using SOFTPWM and PWM at the same time, import CHIP_IO.SOFTPWM as SPWM or something different than PWM as to not confuse the library.
**SERVO**::
    import CHIP_IO.SERVO as SERVO
    # Determine hardware
    # 0 For CHIP
    # 1 For CHIP Pro
    SERVO.is_chip_pro()
    # Enable/Disable Debug
    SERVO.toggle_debug()
    #SPWM.start(channel, angle=0, range=180)
    #angle values are between +/- range/2)
    #you can choose any pin except the XIO's
    SERVO.start("CSID4", 50)
    SERVO.set_angle("CSID4", 25.5)
    SERVO.set_range("CSID4", 90)
    # To Stop Servo
    SERVO.stop("CSID4")
    # Cleanup
    SERVO.cleanup()
The Software Servo control only works on the LCD and CSI pins.  The XIO is too slow to control.
**LRADC**::
The LRADC was enabled in the 4.4.13-ntc-mlc.  This is a 6 bit ADC that is 2 Volt tolerant.
Sample code below details how to talk to the LRADC.::
    import CHIP_IO.LRADC as ADC
    # Enable/Disable Debug
    ADC.toggle_debug()
    # Check to see if the LRADC Device exists
    # Returns True/False
    ADC.get_device_exists()
    # Setup the LRADC
    # Specify a sampling rate if needed
    ADC.setup(rate)
    # Get the Scale Factor
    factor = ADC.get_scale_factor()
    # Get the allowable Sampling Rates
    sampleratestuple = ADC.get_allowable_sample_rates()
    # Set the sampling rate
    ADC.set_sample_rate(rate)
    # Get the current sampling rate
    currentrate = ADC.get_sample_rate()
    # Get the Raw Channel 0 or 1 data
    raw = ADC.get_chan0_raw()
    raw = ADC.get_chan1_raw()
    # Get the factored ADC Channel data
    fulldata = ADC.get_chan0()
    fulldata = ADC.get_chan1()
**SPI**::
SPI requires a DTB Overlay to access.  CHIP_IO does not contain any SPI specific code as the Python spidev module works when it can see the SPI bus.
**Overlay Manager**::
The Overlay Manager enables you to quickly load simple Device Tree Overlays.  The options for loading are:
PWM0, SPI2, CUST.  The Overlay Manager is smart enough to determine if you are trying to load PWM on a CHIP Pro and will fail due to the base DTB for the CHIP Pro supporting PWM0/1 out of the box.
Only one of each type of overlay can be loaded at a time, but all three options can be loaded simultaneously.  So you can have SPI2 without PWM0, but you cannot have SPI2 loaded twice.
    import CHIP_IO.OverlayManager as OM
    # The toggle_debug() function turns on/off debug printing
    OM.toggle_debug()
    # To load an overlay, feed in the name to load()
    OM.load("PWM0")
    # To verify the overlay was properly loaded, the get_ functions return booleans
    OM.get_pwm_loaded()
    OM.get_spi_loaded()
    # To unload an overlay, feed in the name to unload()
    OM.unload("PWM0")
To use a custom overlay, you must build and compile it properly per the DIP Docs: http://docs.getchip.com/dip.html#development-by-example
There is no verification that the Custom Overlay is setup properly, it's fire and forget
    import CHIP_IO.OverlayManager as OM
    # The full path to the dtbo file needs to be specified
    OM.load("CUST","/home/chip/projects/myfunproject/overlays/mycustomoverlay.dtbo")
    # You can check for loading like above, but it's really just there for sameness
    OM.get_custom_loaded()
    # To unload, just call unload()
    OM.unload("CUST")
**OverlayManager requires a 4.4 kernel with the CONFIG_OF_CONFIGFS option enabled in the kernel config.**
**Utilties**::
CHIP_IO now supports the ability to enable and disable the 1.8V port on U13.  This voltage rail isn't enabled during boot.
To use the utilities, here is sample code::
    import CHIP_IO.Utilities as UT
    # Enable/Disable Debug
    UT.toggle_debug()
    # Enable 1.8V Output
    UT.enable_1v8_pin()
    # Set 2.0V Output
    UT.set_1v8_pin_voltage(2.0)
    # Set 2.6V Output
    UT.set_1v8_pin_voltage(2.6)
    # Set 3.3V Output
    UT.set_1v8_pin_voltage(3.3)
    # Disable 1.8V Output
    UT.disable_1v8_pin()
    # Get currently-configured voltage (returns False if the pin is not enabled as output)
    UT.get_1v8_pin_voltage()
    # Unexport Everything
    UT.unexport_all()
    # Determine if you are running a CHIP/CHIP Pro
    # This returns True if the computer is a CHIP Pro and False if it is a CHIP
    UT.is_chip_pro()
**Running tests**
Install py.test to run the tests. You'll also need the python compiler package for py.test.::
    # Python 2.7
    sudo apt-get install python-pytest
    # Python 3
    sudo apt-get install python3-pytest
To run the tests, do the following.::
    # If only one version of Python is installed
    # Python 2
    sudo make pytest2
    # Python 3
    sudo make pytest3
    # If more than one version of Python, run through both
    sudo make test
**Credits**
The CHIP IO Python library was originally forked from the Adafruit Beaglebone IO Python Library.
The BeagleBone IO Python library was originally forked from the excellent MIT Licensed [RPi.GPIO](https://code.google.com/p/raspberry-gpio-python) library written by Ben Croston.
**License**
CHIP IO port by Robert Wolterman, released under the MIT License.
Beaglebone IO Library Written by Justin Cooper, Adafruit Industries. BeagleBone IO Python library is released under the MIT License.

%package -n python3-CHIP-IO
Summary:	A module to control CHIP IO channels
Provides:	python-CHIP-IO
BuildRequires:	python3-devel
BuildRequires:	python3-setuptools
BuildRequires:	python3-pip
%description -n python3-CHIP-IO
A CHIP GPIO library
Debian File Installation:
There are now pre-compiled binary deb files for the CHIP that do not require any build tools on a CHIP/CHIP Pro.
Go to this page: https://github.com/xtacocorex/CHIP_IO/releases/latest
Or
Go to this page: https://xtacocorex.github.io/chip_io_releases/index.html
Download the .deb file for the version of Python you are running.
Then install with dpkg, like the following example:
    sudo dpkg -i python-chip-io_0.5.9-1_armhf.deb
Manual Installation::
For Python2.7::
    sudo apt-get update
    sudo apt-get install git build-essential python-dev python-pip flex bison chip-dt-overlays -y
    git clone git://github.com/xtacocorex/CHIP_IO.git
    cd CHIP_IO
    sudo python setup.py install
    cd ..
For Python3::
    sudo apt-get update
    sudo apt-get install git build-essential python3-dev python3-pip flex bison chip-dt-overlays -y
    git clone git://github.com/xtacocorex/CHIP_IO.git
    cd CHIP_IO
    sudo python3 setup.py install
    cd ..
PyPi Installation::
For Python2.7::
    sudo apt-get update
    sudo apt-get install git build-essential python-dev python-pip flex bison chip-dt-overlays -y
    sudo pip install CHIP-IO
For Python3::
    sudo apt-get update
    sudo apt-get install git build-essential python3-dev python3-pip flex bison chip-dt-overlays -y
    sudo pip3 install CHIP-IO
**Usage**
Using the library is very similar to the excellent RPi.GPIO library used on the Raspberry Pi. Below are some examples.
All scripts that require GPIO, PWM (HW and/or SW), and Overlay Manager need to be run with super user permissions!
**Allowable Pin Names for the Library**
The following "table" is the allowable pin names that are able to be used by the library. The Name column is the normal name used on the CHIP Headers, the Alt Name column is the value used by the PocketCHIP header (if it's broken out), and the Key is the Header and Pin Number the the Pin is physically located.  Either of these 3 means is able to specify a pin in CHIP_IO.
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CHIP (Main Name) | PocketCHIP/CHIP Pro Name | Key (Alt Name) | HW Support      | Edge Detect     |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | TWI1-SDA         | KPD-I2C-SDA              | U13_9          | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | TWI1-SCK         | KPD-I2C-SCL              | U13_11         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D2           | UART2-TX                 | U13_17         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | PWM0             | PWM0                     | U13_18         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | PWM1             | PWM1                     | EINT13         | CHIP PRO        | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D4           | UART2-CTS                | U13_19         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D3           | UART2-RX                 | U13_20         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D6           | LCD-D6                   | U13_21         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D5           | UART2-RTS                | U13_22         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D10          | LCD-D10                  | U13_23         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D7           | LCD-D7                   | U13_24         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D12          | LCD-D12                  | U13_25         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D11          | LCD-D11                  | U13_26         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D14          | LCD-D14                  | U13_27         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D13          | LCD-D13                  | U13_28         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D18          | LCD-D18                  | U13_29         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D15          | LCD-D15                  | U13_30         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D20          | LCD-D20                  | U13_31         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D19          | LCD-D19                  | U13_32         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D22          | LCD-D22                  | U13_33         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D21          | LCD-D21                  | U13_34         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-CLK          | LCD-CLK                  | U13_35         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D23          | LCD-D23                  | U13_36         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-VSYNC        | LCD-VSYNC                | U13_37         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-HSYNC        | LCD-HSYNC                | U13_38         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-DE           | LCD-DE                   | U13_40         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | UART1-TX         | UART-TX                  | U14_3          | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | UART1-RX         | UART-RX                  | U14_5          | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LRADC            | ADC                      | U14_11         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P0           | XIO-P0                   | U14_13         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P1           | XIO-P1                   | U14_14         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P2           | GPIO1                    | U14_15         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P3           | GPIO2                    | U14_16         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P4           | GPIO3                    | U14_17         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P5           | GPIO4                    | U14_18         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P6           | GPIO5                    | U14_19         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P7           | GPIO6                    | U14_20         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | AP-EINT1         | KPD-INT                  | U14_23         | CHIP/CHIP PRO   | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | AP-EINT3         | AP-INT3                  | U14_24         | CHIP/CHIP PRO   | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | TWI2-SDA         | I2C-SDA                  | U14_25         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | TWI2-SCK         | I2C-SCL                  | U14_26         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSIPCK           | SPI-SEL                  | U14_27         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSICK            | SPI-CLK                  | U14_28         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSIHSYNC         | SPI-MOSI                 | U14_29         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSIVSYNC         | SPI-MISO                 | U14_30         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID0            | D0                       | U14_31         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID1            | D1                       | U14_32         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID2            | D2                       | U14_33         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID3            | D3                       | U14_34         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID4            | D4                       | U14_35         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID5            | D5                       | U14_36         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID6            | D6                       | U14_37         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID7            | D7                       | U14_38         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | I2S-MCLK         | EINT19                   | 21             | CHIP PRO        | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | I2S-BCLK         | I2S-BCLK                 | 22             | CHIP PRO        | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | I2S-LCLK         | I2S-LCLK                 | 23             | CHIP PRO        | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | I2S-DO           | EINT19                   | 24             | CHIP PRO        | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | I2S-DI           | EINT24                   | 25             | CHIP PRO        | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
**GPIO Setup**
Import the library, and setup as GPIO.OUT or GPIO.IN::
    import CHIP_IO.GPIO as GPIO
    GPIO.setup("CSID0", GPIO.OUT)
You can also refer to the pin number::
    GPIO.setup("U14_31", GPIO.OUT)
You can also refer to the bin based upon its alternate name::
    GPIO.setup("GPIO1", GPIO.IN)
**GPIO Miscellaneous**
Debug can be enabled/disabled by the following command::
    # Enable Debug
    GPIO.toggle_debug()
You can determine if the hardware is a CHIP/CHIP Pro using the following::
    # Determine hardware
    # 0 For CHIP
    # 1 For CHIP Pro
    GPIO.is_chip_pro()
**GPIO Output**
Setup the pin for output, and write GPIO.HIGH or GPIO.LOW. Or you can use 1 or 0.::
    import CHIP_IO.GPIO as GPIO
    GPIO.setup("CSID0", GPIO.OUT)
    GPIO.output("CSID0", GPIO.HIGH)
**GPIO Input**
Inputs work similarly to outputs.::
    import CHIP_IO.GPIO as GPIO
    GPIO.setup("CSID0", GPIO.IN)
Other options when setting up pins::
    # Specify pull up/pull down settings on a pin
    GPIO.setup("CSID0", GPIO.IN, pull_up_down=GPIO.PUD_UP)
    # Specify initial value for an output
    GPIO.setup("CSID0", GPIO.OUT, initial=1)
Pull Up/Down values are only for pins that are provided by the R8, the XIO are not capable of this.  The allowable values are: PUD_OFF, PUD_UP, and PUD_DOWN.
Polling inputs::
    if GPIO.input("CSID0"):
        print("HIGH")
    else:
        print("LOW")
Read lots of data::
    # Get 8 bits of data in one shot
    mybyte = GPIO.read_byte("LCD-D3")
    # Get 16 bits of data in one shot
    myword = GPIO.read_word("XIO-P4")
This code was initially added by brettcvz and I cleaned it up and expanded it.
You can quickly change a pins direction::
    GPIO.direction("XIO-P3", GPIO.OUT)
    GPIO.direction("XIO-P3", GPIO.IN)
You can also re-setup a pin in order to change direction, note that this is a slower operation::
    GPIO.setup("XIO-P3", GPIO.OUT)
    GPIO.setup("XIO-P3", GPIO.IN)
The edge detection code below only works for the AP-EINT1, AP-EINT3, and XPO Pins on the CHIP.
Waiting for an edge (GPIO.RISING, GPIO.FALLING, or GPIO.BOTH::
    GPIO.wait_for_edge(channel, GPIO.RISING)
Detecting events::
    GPIO.setup("XIO-P0", GPIO.IN)
    GPIO.add_event_detect("XIO-P0", GPIO.FALLING)
    #your amazing code here
    #detect wherever:
    if GPIO.event_detected("XIO-P0"):
        print "event detected!"
CHIP_IO can also handle adding callback functions on any pin that supports edge detection.  Note that only one callback function can be specified per Pin, if you try to set more, an exception will be thrown.::
    def mycallback(channel):
        print("we hit the edge we want")
    GPIO.setup("GPIO3", GPIO.IN)
    # Add Event Detect and Callback Separately for Falling Edge
    GPIO.add_event_detect("GPIO3", GPIO.FALLING)
    GPIO.add_event_callback("GPIO3", mycallback)
    # Add Event Detect and Callback Separately for Rising Edge
    GPIO.add_event_detect("GPIO3", GPIO.RISING)
    GPIO.add_event_callback("GPIO3", mycallback)
    # Add Callback for Both Edges using the add_event_detect() method
    GPIO.add_event_detect("GPIO3", GPIO.BOTH, mycallback)
    # Remove callback with the following
    GPIO.remove_event_detect("GPIO3")
    # bouncetime is also able to be set for both GPIO.add_event_detect() and GPIO.add_event_callback()
    GPIO.add_event_detect("GPIO3", GPIO.FALLING, bouncetime=300)
    GPIO.add_event_callback("GPIO3", GPIO.RISING, mycallback, bouncetime=300)
**GPIO Cleanup**
To clean up the GPIO when done, do the following::
    # Clean up every exported GPIO Pin
    GPIO.cleanup()
    # Clean up a single pin (keeping everything else intact)
    GPIO.cleanup("XIO-P0")
**PWM**::
Hardware PWM requires a DTB Overlay loaded on the CHIP to allow the kernel to know there is a PWM device available to use.
    import CHIP_IO.PWM as PWM
    # Determine hardware
    # 0 For CHIP
    # 1 For CHIP Pro
    PWM.is_chip_pro()
    # Enable/Disable Debug
    PWM.toggle_debug()
    #PWM.start(channel, duty, freq=2000, polarity=0)
    #duty values are valid 0 (off) to 100 (on)
    PWM.start("PWM0", 50)
    PWM.set_duty_cycle("PWM0", 25.5)
    PWM.set_frequency("PWM0", 10)
    # To stop PWM
    PWM.stop("PWM0")
    PWM.cleanup()
    #For specific polarity: this example sets polarity to 1 on start:
    PWM.start("PWM0", 50, 2000, 1)
**SOFTPWM**::
    import CHIP_IO.SOFTPWM as SPWM
    # Determine hardware
    # 0 For CHIP
    # 1 For CHIP Pro
    SPWM.is_chip_pro()
    # Enable/Disable Debug
    SPWM.toggle_debug()
    #SPWM.start(channel, duty, freq=2000, polarity=0)
    #duty values are valid 0 (off) to 100 (on)
    #you can choose any pin
    SPWM.start("XIO-P7", 50)
    SPWM.set_duty_cycle("XIO-P7", 25.5)
    SPWM.set_frequency("XIO-P7", 10)
    # To Stop SPWM
    SPWM.stop("XIO-P7")
    # Cleanup
    SPWM.cleanup()
    #For specific polarity: this example sets polarity to 1 on start:
    SPWM.start("XIO-P7", 50, 2000, 1)
Use SOFTPWM at low speeds (hundreds of Hz) for the best results. Do not use for anything that needs high precision or reliability.
If using SOFTPWM and PWM at the same time, import CHIP_IO.SOFTPWM as SPWM or something different than PWM as to not confuse the library.
**SERVO**::
    import CHIP_IO.SERVO as SERVO
    # Determine hardware
    # 0 For CHIP
    # 1 For CHIP Pro
    SERVO.is_chip_pro()
    # Enable/Disable Debug
    SERVO.toggle_debug()
    #SPWM.start(channel, angle=0, range=180)
    #angle values are between +/- range/2)
    #you can choose any pin except the XIO's
    SERVO.start("CSID4", 50)
    SERVO.set_angle("CSID4", 25.5)
    SERVO.set_range("CSID4", 90)
    # To Stop Servo
    SERVO.stop("CSID4")
    # Cleanup
    SERVO.cleanup()
The Software Servo control only works on the LCD and CSI pins.  The XIO is too slow to control.
**LRADC**::
The LRADC was enabled in the 4.4.13-ntc-mlc.  This is a 6 bit ADC that is 2 Volt tolerant.
Sample code below details how to talk to the LRADC.::
    import CHIP_IO.LRADC as ADC
    # Enable/Disable Debug
    ADC.toggle_debug()
    # Check to see if the LRADC Device exists
    # Returns True/False
    ADC.get_device_exists()
    # Setup the LRADC
    # Specify a sampling rate if needed
    ADC.setup(rate)
    # Get the Scale Factor
    factor = ADC.get_scale_factor()
    # Get the allowable Sampling Rates
    sampleratestuple = ADC.get_allowable_sample_rates()
    # Set the sampling rate
    ADC.set_sample_rate(rate)
    # Get the current sampling rate
    currentrate = ADC.get_sample_rate()
    # Get the Raw Channel 0 or 1 data
    raw = ADC.get_chan0_raw()
    raw = ADC.get_chan1_raw()
    # Get the factored ADC Channel data
    fulldata = ADC.get_chan0()
    fulldata = ADC.get_chan1()
**SPI**::
SPI requires a DTB Overlay to access.  CHIP_IO does not contain any SPI specific code as the Python spidev module works when it can see the SPI bus.
**Overlay Manager**::
The Overlay Manager enables you to quickly load simple Device Tree Overlays.  The options for loading are:
PWM0, SPI2, CUST.  The Overlay Manager is smart enough to determine if you are trying to load PWM on a CHIP Pro and will fail due to the base DTB for the CHIP Pro supporting PWM0/1 out of the box.
Only one of each type of overlay can be loaded at a time, but all three options can be loaded simultaneously.  So you can have SPI2 without PWM0, but you cannot have SPI2 loaded twice.
    import CHIP_IO.OverlayManager as OM
    # The toggle_debug() function turns on/off debug printing
    OM.toggle_debug()
    # To load an overlay, feed in the name to load()
    OM.load("PWM0")
    # To verify the overlay was properly loaded, the get_ functions return booleans
    OM.get_pwm_loaded()
    OM.get_spi_loaded()
    # To unload an overlay, feed in the name to unload()
    OM.unload("PWM0")
To use a custom overlay, you must build and compile it properly per the DIP Docs: http://docs.getchip.com/dip.html#development-by-example
There is no verification that the Custom Overlay is setup properly, it's fire and forget
    import CHIP_IO.OverlayManager as OM
    # The full path to the dtbo file needs to be specified
    OM.load("CUST","/home/chip/projects/myfunproject/overlays/mycustomoverlay.dtbo")
    # You can check for loading like above, but it's really just there for sameness
    OM.get_custom_loaded()
    # To unload, just call unload()
    OM.unload("CUST")
**OverlayManager requires a 4.4 kernel with the CONFIG_OF_CONFIGFS option enabled in the kernel config.**
**Utilties**::
CHIP_IO now supports the ability to enable and disable the 1.8V port on U13.  This voltage rail isn't enabled during boot.
To use the utilities, here is sample code::
    import CHIP_IO.Utilities as UT
    # Enable/Disable Debug
    UT.toggle_debug()
    # Enable 1.8V Output
    UT.enable_1v8_pin()
    # Set 2.0V Output
    UT.set_1v8_pin_voltage(2.0)
    # Set 2.6V Output
    UT.set_1v8_pin_voltage(2.6)
    # Set 3.3V Output
    UT.set_1v8_pin_voltage(3.3)
    # Disable 1.8V Output
    UT.disable_1v8_pin()
    # Get currently-configured voltage (returns False if the pin is not enabled as output)
    UT.get_1v8_pin_voltage()
    # Unexport Everything
    UT.unexport_all()
    # Determine if you are running a CHIP/CHIP Pro
    # This returns True if the computer is a CHIP Pro and False if it is a CHIP
    UT.is_chip_pro()
**Running tests**
Install py.test to run the tests. You'll also need the python compiler package for py.test.::
    # Python 2.7
    sudo apt-get install python-pytest
    # Python 3
    sudo apt-get install python3-pytest
To run the tests, do the following.::
    # If only one version of Python is installed
    # Python 2
    sudo make pytest2
    # Python 3
    sudo make pytest3
    # If more than one version of Python, run through both
    sudo make test
**Credits**
The CHIP IO Python library was originally forked from the Adafruit Beaglebone IO Python Library.
The BeagleBone IO Python library was originally forked from the excellent MIT Licensed [RPi.GPIO](https://code.google.com/p/raspberry-gpio-python) library written by Ben Croston.
**License**
CHIP IO port by Robert Wolterman, released under the MIT License.
Beaglebone IO Library Written by Justin Cooper, Adafruit Industries. BeagleBone IO Python library is released under the MIT License.

%package help
Summary:	Development documents and examples for CHIP-IO
Provides:	python3-CHIP-IO-doc
%description help
A CHIP GPIO library
Debian File Installation:
There are now pre-compiled binary deb files for the CHIP that do not require any build tools on a CHIP/CHIP Pro.
Go to this page: https://github.com/xtacocorex/CHIP_IO/releases/latest
Or
Go to this page: https://xtacocorex.github.io/chip_io_releases/index.html
Download the .deb file for the version of Python you are running.
Then install with dpkg, like the following example:
    sudo dpkg -i python-chip-io_0.5.9-1_armhf.deb
Manual Installation::
For Python2.7::
    sudo apt-get update
    sudo apt-get install git build-essential python-dev python-pip flex bison chip-dt-overlays -y
    git clone git://github.com/xtacocorex/CHIP_IO.git
    cd CHIP_IO
    sudo python setup.py install
    cd ..
For Python3::
    sudo apt-get update
    sudo apt-get install git build-essential python3-dev python3-pip flex bison chip-dt-overlays -y
    git clone git://github.com/xtacocorex/CHIP_IO.git
    cd CHIP_IO
    sudo python3 setup.py install
    cd ..
PyPi Installation::
For Python2.7::
    sudo apt-get update
    sudo apt-get install git build-essential python-dev python-pip flex bison chip-dt-overlays -y
    sudo pip install CHIP-IO
For Python3::
    sudo apt-get update
    sudo apt-get install git build-essential python3-dev python3-pip flex bison chip-dt-overlays -y
    sudo pip3 install CHIP-IO
**Usage**
Using the library is very similar to the excellent RPi.GPIO library used on the Raspberry Pi. Below are some examples.
All scripts that require GPIO, PWM (HW and/or SW), and Overlay Manager need to be run with super user permissions!
**Allowable Pin Names for the Library**
The following "table" is the allowable pin names that are able to be used by the library. The Name column is the normal name used on the CHIP Headers, the Alt Name column is the value used by the PocketCHIP header (if it's broken out), and the Key is the Header and Pin Number the the Pin is physically located.  Either of these 3 means is able to specify a pin in CHIP_IO.
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CHIP (Main Name) | PocketCHIP/CHIP Pro Name | Key (Alt Name) | HW Support      | Edge Detect     |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | TWI1-SDA         | KPD-I2C-SDA              | U13_9          | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | TWI1-SCK         | KPD-I2C-SCL              | U13_11         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D2           | UART2-TX                 | U13_17         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | PWM0             | PWM0                     | U13_18         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | PWM1             | PWM1                     | EINT13         | CHIP PRO        | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D4           | UART2-CTS                | U13_19         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D3           | UART2-RX                 | U13_20         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D6           | LCD-D6                   | U13_21         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D5           | UART2-RTS                | U13_22         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D10          | LCD-D10                  | U13_23         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D7           | LCD-D7                   | U13_24         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D12          | LCD-D12                  | U13_25         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D11          | LCD-D11                  | U13_26         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D14          | LCD-D14                  | U13_27         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D13          | LCD-D13                  | U13_28         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D18          | LCD-D18                  | U13_29         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D15          | LCD-D15                  | U13_30         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D20          | LCD-D20                  | U13_31         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D19          | LCD-D19                  | U13_32         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D22          | LCD-D22                  | U13_33         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D21          | LCD-D21                  | U13_34         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-CLK          | LCD-CLK                  | U13_35         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-D23          | LCD-D23                  | U13_36         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-VSYNC        | LCD-VSYNC                | U13_37         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-HSYNC        | LCD-HSYNC                | U13_38         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LCD-DE           | LCD-DE                   | U13_40         | CHIP            | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | UART1-TX         | UART-TX                  | U14_3          | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | UART1-RX         | UART-RX                  | U14_5          | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | LRADC            | ADC                      | U14_11         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P0           | XIO-P0                   | U14_13         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P1           | XIO-P1                   | U14_14         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P2           | GPIO1                    | U14_15         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P3           | GPIO2                    | U14_16         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P4           | GPIO3                    | U14_17         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P5           | GPIO4                    | U14_18         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P6           | GPIO5                    | U14_19         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | XIO-P7           | GPIO6                    | U14_20         | CHIP            | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | AP-EINT1         | KPD-INT                  | U14_23         | CHIP/CHIP PRO   | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | AP-EINT3         | AP-INT3                  | U14_24         | CHIP/CHIP PRO   | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | TWI2-SDA         | I2C-SDA                  | U14_25         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | TWI2-SCK         | I2C-SCL                  | U14_26         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSIPCK           | SPI-SEL                  | U14_27         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSICK            | SPI-CLK                  | U14_28         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSIHSYNC         | SPI-MOSI                 | U14_29         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSIVSYNC         | SPI-MISO                 | U14_30         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID0            | D0                       | U14_31         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID1            | D1                       | U14_32         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID2            | D2                       | U14_33         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID3            | D3                       | U14_34         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID4            | D4                       | U14_35         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID5            | D5                       | U14_36         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID6            | D6                       | U14_37         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | CSID7            | D7                       | U14_38         | CHIP/CHIP PRO   | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | I2S-MCLK         | EINT19                   | 21             | CHIP PRO        | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | I2S-BCLK         | I2S-BCLK                 | 22             | CHIP PRO        | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | I2S-LCLK         | I2S-LCLK                 | 23             | CHIP PRO        | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | I2S-DO           | EINT19                   | 24             | CHIP PRO        | NO              |
  +------------------+--------------------------+----------------+-----------------+-----------------+
  | I2S-DI           | EINT24                   | 25             | CHIP PRO        | YES             |
  +------------------+--------------------------+----------------+-----------------+-----------------+
**GPIO Setup**
Import the library, and setup as GPIO.OUT or GPIO.IN::
    import CHIP_IO.GPIO as GPIO
    GPIO.setup("CSID0", GPIO.OUT)
You can also refer to the pin number::
    GPIO.setup("U14_31", GPIO.OUT)
You can also refer to the bin based upon its alternate name::
    GPIO.setup("GPIO1", GPIO.IN)
**GPIO Miscellaneous**
Debug can be enabled/disabled by the following command::
    # Enable Debug
    GPIO.toggle_debug()
You can determine if the hardware is a CHIP/CHIP Pro using the following::
    # Determine hardware
    # 0 For CHIP
    # 1 For CHIP Pro
    GPIO.is_chip_pro()
**GPIO Output**
Setup the pin for output, and write GPIO.HIGH or GPIO.LOW. Or you can use 1 or 0.::
    import CHIP_IO.GPIO as GPIO
    GPIO.setup("CSID0", GPIO.OUT)
    GPIO.output("CSID0", GPIO.HIGH)
**GPIO Input**
Inputs work similarly to outputs.::
    import CHIP_IO.GPIO as GPIO
    GPIO.setup("CSID0", GPIO.IN)
Other options when setting up pins::
    # Specify pull up/pull down settings on a pin
    GPIO.setup("CSID0", GPIO.IN, pull_up_down=GPIO.PUD_UP)
    # Specify initial value for an output
    GPIO.setup("CSID0", GPIO.OUT, initial=1)
Pull Up/Down values are only for pins that are provided by the R8, the XIO are not capable of this.  The allowable values are: PUD_OFF, PUD_UP, and PUD_DOWN.
Polling inputs::
    if GPIO.input("CSID0"):
        print("HIGH")
    else:
        print("LOW")
Read lots of data::
    # Get 8 bits of data in one shot
    mybyte = GPIO.read_byte("LCD-D3")
    # Get 16 bits of data in one shot
    myword = GPIO.read_word("XIO-P4")
This code was initially added by brettcvz and I cleaned it up and expanded it.
You can quickly change a pins direction::
    GPIO.direction("XIO-P3", GPIO.OUT)
    GPIO.direction("XIO-P3", GPIO.IN)
You can also re-setup a pin in order to change direction, note that this is a slower operation::
    GPIO.setup("XIO-P3", GPIO.OUT)
    GPIO.setup("XIO-P3", GPIO.IN)
The edge detection code below only works for the AP-EINT1, AP-EINT3, and XPO Pins on the CHIP.
Waiting for an edge (GPIO.RISING, GPIO.FALLING, or GPIO.BOTH::
    GPIO.wait_for_edge(channel, GPIO.RISING)
Detecting events::
    GPIO.setup("XIO-P0", GPIO.IN)
    GPIO.add_event_detect("XIO-P0", GPIO.FALLING)
    #your amazing code here
    #detect wherever:
    if GPIO.event_detected("XIO-P0"):
        print "event detected!"
CHIP_IO can also handle adding callback functions on any pin that supports edge detection.  Note that only one callback function can be specified per Pin, if you try to set more, an exception will be thrown.::
    def mycallback(channel):
        print("we hit the edge we want")
    GPIO.setup("GPIO3", GPIO.IN)
    # Add Event Detect and Callback Separately for Falling Edge
    GPIO.add_event_detect("GPIO3", GPIO.FALLING)
    GPIO.add_event_callback("GPIO3", mycallback)
    # Add Event Detect and Callback Separately for Rising Edge
    GPIO.add_event_detect("GPIO3", GPIO.RISING)
    GPIO.add_event_callback("GPIO3", mycallback)
    # Add Callback for Both Edges using the add_event_detect() method
    GPIO.add_event_detect("GPIO3", GPIO.BOTH, mycallback)
    # Remove callback with the following
    GPIO.remove_event_detect("GPIO3")
    # bouncetime is also able to be set for both GPIO.add_event_detect() and GPIO.add_event_callback()
    GPIO.add_event_detect("GPIO3", GPIO.FALLING, bouncetime=300)
    GPIO.add_event_callback("GPIO3", GPIO.RISING, mycallback, bouncetime=300)
**GPIO Cleanup**
To clean up the GPIO when done, do the following::
    # Clean up every exported GPIO Pin
    GPIO.cleanup()
    # Clean up a single pin (keeping everything else intact)
    GPIO.cleanup("XIO-P0")
**PWM**::
Hardware PWM requires a DTB Overlay loaded on the CHIP to allow the kernel to know there is a PWM device available to use.
    import CHIP_IO.PWM as PWM
    # Determine hardware
    # 0 For CHIP
    # 1 For CHIP Pro
    PWM.is_chip_pro()
    # Enable/Disable Debug
    PWM.toggle_debug()
    #PWM.start(channel, duty, freq=2000, polarity=0)
    #duty values are valid 0 (off) to 100 (on)
    PWM.start("PWM0", 50)
    PWM.set_duty_cycle("PWM0", 25.5)
    PWM.set_frequency("PWM0", 10)
    # To stop PWM
    PWM.stop("PWM0")
    PWM.cleanup()
    #For specific polarity: this example sets polarity to 1 on start:
    PWM.start("PWM0", 50, 2000, 1)
**SOFTPWM**::
    import CHIP_IO.SOFTPWM as SPWM
    # Determine hardware
    # 0 For CHIP
    # 1 For CHIP Pro
    SPWM.is_chip_pro()
    # Enable/Disable Debug
    SPWM.toggle_debug()
    #SPWM.start(channel, duty, freq=2000, polarity=0)
    #duty values are valid 0 (off) to 100 (on)
    #you can choose any pin
    SPWM.start("XIO-P7", 50)
    SPWM.set_duty_cycle("XIO-P7", 25.5)
    SPWM.set_frequency("XIO-P7", 10)
    # To Stop SPWM
    SPWM.stop("XIO-P7")
    # Cleanup
    SPWM.cleanup()
    #For specific polarity: this example sets polarity to 1 on start:
    SPWM.start("XIO-P7", 50, 2000, 1)
Use SOFTPWM at low speeds (hundreds of Hz) for the best results. Do not use for anything that needs high precision or reliability.
If using SOFTPWM and PWM at the same time, import CHIP_IO.SOFTPWM as SPWM or something different than PWM as to not confuse the library.
**SERVO**::
    import CHIP_IO.SERVO as SERVO
    # Determine hardware
    # 0 For CHIP
    # 1 For CHIP Pro
    SERVO.is_chip_pro()
    # Enable/Disable Debug
    SERVO.toggle_debug()
    #SPWM.start(channel, angle=0, range=180)
    #angle values are between +/- range/2)
    #you can choose any pin except the XIO's
    SERVO.start("CSID4", 50)
    SERVO.set_angle("CSID4", 25.5)
    SERVO.set_range("CSID4", 90)
    # To Stop Servo
    SERVO.stop("CSID4")
    # Cleanup
    SERVO.cleanup()
The Software Servo control only works on the LCD and CSI pins.  The XIO is too slow to control.
**LRADC**::
The LRADC was enabled in the 4.4.13-ntc-mlc.  This is a 6 bit ADC that is 2 Volt tolerant.
Sample code below details how to talk to the LRADC.::
    import CHIP_IO.LRADC as ADC
    # Enable/Disable Debug
    ADC.toggle_debug()
    # Check to see if the LRADC Device exists
    # Returns True/False
    ADC.get_device_exists()
    # Setup the LRADC
    # Specify a sampling rate if needed
    ADC.setup(rate)
    # Get the Scale Factor
    factor = ADC.get_scale_factor()
    # Get the allowable Sampling Rates
    sampleratestuple = ADC.get_allowable_sample_rates()
    # Set the sampling rate
    ADC.set_sample_rate(rate)
    # Get the current sampling rate
    currentrate = ADC.get_sample_rate()
    # Get the Raw Channel 0 or 1 data
    raw = ADC.get_chan0_raw()
    raw = ADC.get_chan1_raw()
    # Get the factored ADC Channel data
    fulldata = ADC.get_chan0()
    fulldata = ADC.get_chan1()
**SPI**::
SPI requires a DTB Overlay to access.  CHIP_IO does not contain any SPI specific code as the Python spidev module works when it can see the SPI bus.
**Overlay Manager**::
The Overlay Manager enables you to quickly load simple Device Tree Overlays.  The options for loading are:
PWM0, SPI2, CUST.  The Overlay Manager is smart enough to determine if you are trying to load PWM on a CHIP Pro and will fail due to the base DTB for the CHIP Pro supporting PWM0/1 out of the box.
Only one of each type of overlay can be loaded at a time, but all three options can be loaded simultaneously.  So you can have SPI2 without PWM0, but you cannot have SPI2 loaded twice.
    import CHIP_IO.OverlayManager as OM
    # The toggle_debug() function turns on/off debug printing
    OM.toggle_debug()
    # To load an overlay, feed in the name to load()
    OM.load("PWM0")
    # To verify the overlay was properly loaded, the get_ functions return booleans
    OM.get_pwm_loaded()
    OM.get_spi_loaded()
    # To unload an overlay, feed in the name to unload()
    OM.unload("PWM0")
To use a custom overlay, you must build and compile it properly per the DIP Docs: http://docs.getchip.com/dip.html#development-by-example
There is no verification that the Custom Overlay is setup properly, it's fire and forget
    import CHIP_IO.OverlayManager as OM
    # The full path to the dtbo file needs to be specified
    OM.load("CUST","/home/chip/projects/myfunproject/overlays/mycustomoverlay.dtbo")
    # You can check for loading like above, but it's really just there for sameness
    OM.get_custom_loaded()
    # To unload, just call unload()
    OM.unload("CUST")
**OverlayManager requires a 4.4 kernel with the CONFIG_OF_CONFIGFS option enabled in the kernel config.**
**Utilties**::
CHIP_IO now supports the ability to enable and disable the 1.8V port on U13.  This voltage rail isn't enabled during boot.
To use the utilities, here is sample code::
    import CHIP_IO.Utilities as UT
    # Enable/Disable Debug
    UT.toggle_debug()
    # Enable 1.8V Output
    UT.enable_1v8_pin()
    # Set 2.0V Output
    UT.set_1v8_pin_voltage(2.0)
    # Set 2.6V Output
    UT.set_1v8_pin_voltage(2.6)
    # Set 3.3V Output
    UT.set_1v8_pin_voltage(3.3)
    # Disable 1.8V Output
    UT.disable_1v8_pin()
    # Get currently-configured voltage (returns False if the pin is not enabled as output)
    UT.get_1v8_pin_voltage()
    # Unexport Everything
    UT.unexport_all()
    # Determine if you are running a CHIP/CHIP Pro
    # This returns True if the computer is a CHIP Pro and False if it is a CHIP
    UT.is_chip_pro()
**Running tests**
Install py.test to run the tests. You'll also need the python compiler package for py.test.::
    # Python 2.7
    sudo apt-get install python-pytest
    # Python 3
    sudo apt-get install python3-pytest
To run the tests, do the following.::
    # If only one version of Python is installed
    # Python 2
    sudo make pytest2
    # Python 3
    sudo make pytest3
    # If more than one version of Python, run through both
    sudo make test
**Credits**
The CHIP IO Python library was originally forked from the Adafruit Beaglebone IO Python Library.
The BeagleBone IO Python library was originally forked from the excellent MIT Licensed [RPi.GPIO](https://code.google.com/p/raspberry-gpio-python) library written by Ben Croston.
**License**
CHIP IO port by Robert Wolterman, released under the MIT License.
Beaglebone IO Library Written by Justin Cooper, Adafruit Industries. BeagleBone IO Python library is released under the MIT License.

%prep
%autosetup -n CHIP-IO-0.7.1

%build
%py3_build

%install
%py3_install
install -d -m755 %{buildroot}/%{_pkgdocdir}
if [ -d doc ]; then cp -arf doc %{buildroot}/%{_pkgdocdir}; fi
if [ -d docs ]; then cp -arf docs %{buildroot}/%{_pkgdocdir}; fi
if [ -d example ]; then cp -arf example %{buildroot}/%{_pkgdocdir}; fi
if [ -d examples ]; then cp -arf examples %{buildroot}/%{_pkgdocdir}; fi
pushd %{buildroot}
if [ -d usr/lib ]; then
	find usr/lib -type f -printf "/%h/%f\n" >> filelist.lst
fi
if [ -d usr/lib64 ]; then
	find usr/lib64 -type f -printf "/%h/%f\n" >> filelist.lst
fi
if [ -d usr/bin ]; then
	find usr/bin -type f -printf "/%h/%f\n" >> filelist.lst
fi
if [ -d usr/sbin ]; then
	find usr/sbin -type f -printf "/%h/%f\n" >> filelist.lst
fi
touch doclist.lst
if [ -d usr/share/man ]; then
	find usr/share/man -type f -printf "/%h/%f.gz\n" >> doclist.lst
fi
popd
mv %{buildroot}/filelist.lst .
mv %{buildroot}/doclist.lst .

%files -n python3-CHIP-IO -f filelist.lst
%dir %{python3_sitelib}/*

%files help -f doclist.lst
%{_docdir}/*

%changelog
* Mon May 15 2023 Python_Bot <Python_Bot@openeuler.org> - 0.7.1-1
- Package Spec generated