My Version of The LED_WS2812 Library
Dependencies: WS2812 PixelArray
Fork of LED_WS2812 by
LED_WS2812.cpp@0:999518b1799b, 2017-02-15 (annotated)
- Committer:
- garphil
- Date:
- Wed Feb 15 01:44:53 2017 +0000
- Revision:
- 0:999518b1799b
- Child:
- 3:ba8dc8811164
First publish
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
garphil | 0:999518b1799b | 1 | #include "LED_WS2812.h" |
garphil | 0:999518b1799b | 2 | |
garphil | 0:999518b1799b | 3 | |
garphil | 0:999518b1799b | 4 | |
garphil | 0:999518b1799b | 5 | LED_WS2812::LED_WS2812(PinName _PinOut, int _nbLeds) { |
garphil | 0:999518b1799b | 6 | nbLeds = _nbLeds; |
garphil | 0:999518b1799b | 7 | double period_ns; |
garphil | 0:999518b1799b | 8 | Timer tuneTimings; |
garphil | 0:999518b1799b | 9 | int sum = 0; |
garphil | 0:999518b1799b | 10 | int nopRun; |
garphil | 0:999518b1799b | 11 | |
garphil | 0:999518b1799b | 12 | for(int kavg = 0; kavg<20;kavg++) { |
garphil | 0:999518b1799b | 13 | tuneTimings.reset(); |
garphil | 0:999518b1799b | 14 | tuneTimings.start(); |
garphil | 0:999518b1799b | 15 | for(int nopCount=0; nopCount < 10000; nopCount ++) { |
garphil | 0:999518b1799b | 16 | __nop(); |
garphil | 0:999518b1799b | 17 | } |
garphil | 0:999518b1799b | 18 | tuneTimings.stop(); |
garphil | 0:999518b1799b | 19 | nopRun = tuneTimings.read_us(); |
garphil | 0:999518b1799b | 20 | sum=nopRun+sum; |
garphil | 0:999518b1799b | 21 | } |
garphil | 0:999518b1799b | 22 | period_ns = sum/200; /* *1000 for nanoseconds /20 average /10000 count */ |
garphil | 0:999518b1799b | 23 | |
garphil | 0:999518b1799b | 24 | int zero_high = ZERO_HIGH/period_ns; |
garphil | 0:999518b1799b | 25 | int zero_low = ZERO_LOW/period_ns; |
garphil | 0:999518b1799b | 26 | int one_high = ONE_HIGH/period_ns; |
garphil | 0:999518b1799b | 27 | int one_low = ONE_LOW/period_ns; |
garphil | 0:999518b1799b | 28 | |
garphil | 0:999518b1799b | 29 | ws = new WS2812(_PinOut, nbLeds, zero_high, zero_low, one_high, one_low); |
garphil | 0:999518b1799b | 30 | ws->useII(WS2812::PER_PIXEL); |
garphil | 0:999518b1799b | 31 | |
garphil | 0:999518b1799b | 32 | pxArray = new PixelArray(nbLeds); |
garphil | 0:999518b1799b | 33 | pxInsert = new PixelArray(nbLeds); |
garphil | 0:999518b1799b | 34 | ResetColor(); |
garphil | 0:999518b1799b | 35 | rotationState = false; |
garphil | 0:999518b1799b | 36 | rotationPosition = nbLeds-1; |
garphil | 0:999518b1799b | 37 | intensity = 0xff; |
garphil | 0:999518b1799b | 38 | }; |
garphil | 0:999518b1799b | 39 | |
garphil | 0:999518b1799b | 40 | LED_WS2812::~LED_WS2812() { |
garphil | 0:999518b1799b | 41 | delete(ws); |
garphil | 0:999518b1799b | 42 | delete(pxArray); |
garphil | 0:999518b1799b | 43 | } |
garphil | 0:999518b1799b | 44 | |
garphil | 0:999518b1799b | 45 | |
garphil | 0:999518b1799b | 46 | |
garphil | 0:999518b1799b | 47 | void LED_WS2812::SetColor(LED_COLORS _color) { |
garphil | 0:999518b1799b | 48 | SetColor((unsigned int) _color); |
garphil | 0:999518b1799b | 49 | }; |
garphil | 0:999518b1799b | 50 | |
garphil | 0:999518b1799b | 51 | void LED_WS2812::SetColor(unsigned int _color) { |
garphil | 0:999518b1799b | 52 | for(int i=0;i<nbLeds;i++) { |
garphil | 0:999518b1799b | 53 | pxArray->Set(i, _color); |
garphil | 0:999518b1799b | 54 | pxArray->SetI(i,intensity); |
garphil | 0:999518b1799b | 55 | } |
garphil | 0:999518b1799b | 56 | __writeBuf(0); |
garphil | 0:999518b1799b | 57 | nbInsert = 0; |
garphil | 0:999518b1799b | 58 | if(rotationState) StopRotation(); |
garphil | 0:999518b1799b | 59 | rotationPosition = nbLeds; |
garphil | 0:999518b1799b | 60 | }; |
garphil | 0:999518b1799b | 61 | |
garphil | 0:999518b1799b | 62 | |
garphil | 0:999518b1799b | 63 | void LED_WS2812::ResetColor() { |
garphil | 0:999518b1799b | 64 | SetColor(BLACK); |
garphil | 0:999518b1799b | 65 | |
garphil | 0:999518b1799b | 66 | } |
garphil | 0:999518b1799b | 67 | |
garphil | 0:999518b1799b | 68 | void LED_WS2812::__writeBuf(int z) { |
garphil | 0:999518b1799b | 69 | ws->write_offsets(pxArray->getBuf(),z,z,z); |
garphil | 0:999518b1799b | 70 | } |
garphil | 0:999518b1799b | 71 | |
garphil | 0:999518b1799b | 72 | void LED_WS2812::__insert2buf() { |
garphil | 0:999518b1799b | 73 | for(int i=0;i<nbLeds;i++) { |
garphil | 0:999518b1799b | 74 | pxArray->Set(i, pxInsert->Get(i%nbInsert)); |
garphil | 0:999518b1799b | 75 | } |
garphil | 0:999518b1799b | 76 | __writeBuf(0); |
garphil | 0:999518b1799b | 77 | rotationPosition = nbLeds; |
garphil | 0:999518b1799b | 78 | } |
garphil | 0:999518b1799b | 79 | |
garphil | 0:999518b1799b | 80 | void LED_WS2812::__insertColor(unsigned int _color, int _intensity) { |
garphil | 0:999518b1799b | 81 | pxInsert->Set(nbInsert%nbLeds,_color); |
garphil | 0:999518b1799b | 82 | pxInsert->SetI(nbInsert%nbLeds,_intensity); |
garphil | 0:999518b1799b | 83 | nbInsert++; |
garphil | 0:999518b1799b | 84 | |
garphil | 0:999518b1799b | 85 | }; |
garphil | 0:999518b1799b | 86 | |
garphil | 0:999518b1799b | 87 | void LED_WS2812::InsertColor(unsigned int _color) { |
garphil | 0:999518b1799b | 88 | InsertColor(_color,intensity*100/0xFF); |
garphil | 0:999518b1799b | 89 | }; |
garphil | 0:999518b1799b | 90 | |
garphil | 0:999518b1799b | 91 | |
garphil | 0:999518b1799b | 92 | void LED_WS2812::InsertColor(unsigned int _color, float brightness) { |
garphil | 0:999518b1799b | 93 | int pixelIntensity = brightness*0xFF/100; |
garphil | 0:999518b1799b | 94 | __insertColor(_color, pixelIntensity); |
garphil | 0:999518b1799b | 95 | __insert2buf(); |
garphil | 0:999518b1799b | 96 | }; |
garphil | 0:999518b1799b | 97 | |
garphil | 0:999518b1799b | 98 | |
garphil | 0:999518b1799b | 99 | void LED_WS2812::InsertColorNtimes(int N, unsigned int _color, float brightness) { |
garphil | 0:999518b1799b | 100 | for(int i=0;i<N;i++) { |
garphil | 0:999518b1799b | 101 | InsertColor(_color, brightness); |
garphil | 0:999518b1799b | 102 | } |
garphil | 0:999518b1799b | 103 | }; |
garphil | 0:999518b1799b | 104 | |
garphil | 0:999518b1799b | 105 | void LED_WS2812::InsertColorNtimes(int N, unsigned int _color) { |
garphil | 0:999518b1799b | 106 | InsertColorNtimes(N, _color, intensity*100/0xFF); |
garphil | 0:999518b1799b | 107 | }; |
garphil | 0:999518b1799b | 108 | |
garphil | 0:999518b1799b | 109 | |
garphil | 0:999518b1799b | 110 | void LED_WS2812::InsertColor(LED_COLORS _color) { |
garphil | 0:999518b1799b | 111 | InsertColor((unsigned int)_color); |
garphil | 0:999518b1799b | 112 | }; |
garphil | 0:999518b1799b | 113 | |
garphil | 0:999518b1799b | 114 | |
garphil | 0:999518b1799b | 115 | void LED_WS2812::InsertColor(LED_COLORS _color, float brightness) { |
garphil | 0:999518b1799b | 116 | InsertColor((unsigned int)_color, brightness); |
garphil | 0:999518b1799b | 117 | }; |
garphil | 0:999518b1799b | 118 | |
garphil | 0:999518b1799b | 119 | |
garphil | 0:999518b1799b | 120 | void LED_WS2812::InsertColorNtimes(int N, LED_COLORS _color, float brightness) { |
garphil | 0:999518b1799b | 121 | InsertColorNtimes(N, (unsigned int)_color, brightness); |
garphil | 0:999518b1799b | 122 | }; |
garphil | 0:999518b1799b | 123 | |
garphil | 0:999518b1799b | 124 | void LED_WS2812::InsertColorNtimes(int N, LED_COLORS _color) { |
garphil | 0:999518b1799b | 125 | InsertColorNtimes(N, _color, intensity*100/0xFF); |
garphil | 0:999518b1799b | 126 | }; |
garphil | 0:999518b1799b | 127 | |
garphil | 0:999518b1799b | 128 | |
garphil | 0:999518b1799b | 129 | void LED_WS2812::SetIntensity(float perCent) { |
garphil | 0:999518b1799b | 130 | intensity = perCent*0xFF/100; |
garphil | 0:999518b1799b | 131 | ws->setII(intensity); |
garphil | 0:999518b1799b | 132 | for(int i=0;i<nbLeds;i++) { |
garphil | 0:999518b1799b | 133 | pxArray->SetI(i,intensity); |
garphil | 0:999518b1799b | 134 | } |
garphil | 0:999518b1799b | 135 | } |
garphil | 0:999518b1799b | 136 | |
garphil | 0:999518b1799b | 137 | void LED_WS2812::StartRotation(float interval) { |
garphil | 0:999518b1799b | 138 | if(rotationState==false) { |
garphil | 0:999518b1799b | 139 | rotationState = true; |
garphil | 0:999518b1799b | 140 | LEDSystemTick.attach_us(this, &LED_WS2812::Rotate, interval*1000000); |
garphil | 0:999518b1799b | 141 | } |
garphil | 0:999518b1799b | 142 | } |
garphil | 0:999518b1799b | 143 | |
garphil | 0:999518b1799b | 144 | |
garphil | 0:999518b1799b | 145 | void LED_WS2812::StopRotation() { |
garphil | 0:999518b1799b | 146 | if(rotationState==true) { |
garphil | 0:999518b1799b | 147 | rotationState = false; |
garphil | 0:999518b1799b | 148 | LEDSystemTick.detach(); |
garphil | 0:999518b1799b | 149 | } |
garphil | 0:999518b1799b | 150 | } |
garphil | 0:999518b1799b | 151 | |
garphil | 0:999518b1799b | 152 | void LED_WS2812::Rotate() { |
garphil | 0:999518b1799b | 153 | rotationPosition--; |
garphil | 0:999518b1799b | 154 | if (rotationPosition == -1) |
garphil | 0:999518b1799b | 155 | rotationPosition = nbLeds-1; |
garphil | 0:999518b1799b | 156 | __writeBuf(rotationPosition); |
garphil | 0:999518b1799b | 157 | } |