MCP3008 Version

Dependencies:   mbed-rtos mbed mcp3008

Fork of KIK01_Proto01 by Ryo Od

Committer:
ryood
Date:
Sun Jun 04 10:49:07 2017 +0000
Revision:
8:bb34a4894337
Parent:
7:6735a343780e
Child:
9:d1e6eae9722b
10 AnalogIns

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ryood 3:f89b400cfe57 1 /*
ryood 3:f89b400cfe57 2 * KIK01
ryood 3:f89b400cfe57 3 * Kick Machine
ryood 3:f89b400cfe57 4 *
ryood 3:f89b400cfe57 5 * 2017.06.04 created.
ryood 3:f89b400cfe57 6 *
ryood 3:f89b400cfe57 7 */
ryood 3:f89b400cfe57 8
ryood 0:2dcec10e9199 9 #include "mbed.h"
ryood 0:2dcec10e9199 10 #include "rtos.h"
ryood 0:2dcec10e9199 11
ryood 0:2dcec10e9199 12 #define TITLE_STR1 ("KIK01 Kick Machine")
ryood 0:2dcec10e9199 13 #define TITLE_STR2 ("20170604")
ryood 0:2dcec10e9199 14
ryood 0:2dcec10e9199 15 #define PI_F (3.1415926f)
ryood 5:846772a77d33 16 #define SAMPLING_RATE (48000)
ryood 0:2dcec10e9199 17 #define SAMPLING_PERIOD (1.0f/SAMPLING_RATE)
ryood 0:2dcec10e9199 18
ryood 6:897d6392b408 19 //#define FREQUENCY_ATTACK (5)
ryood 6:897d6392b408 20 //#define FREQUENCY_RELEASE (300)
ryood 4:9f53a82fc1b6 21 //#define AMPLITUDE_ATTACK (50)
ryood 5:846772a77d33 22 //#define AMPLITUDE_RELEASE (200)
ryood 0:2dcec10e9199 23
ryood 3:f89b400cfe57 24 AnalogOut Dac1(PA_5);
ryood 3:f89b400cfe57 25
ryood 5:846772a77d33 26 AnalogIn Ain0(PA_0);
ryood 5:846772a77d33 27 AnalogIn Ain1(PA_1);
ryood 5:846772a77d33 28 AnalogIn Ain2(PA_4);
ryood 5:846772a77d33 29 AnalogIn Ain3(PB_0);
ryood 5:846772a77d33 30 AnalogIn Ain4(PC_1);
ryood 5:846772a77d33 31 AnalogIn Ain5(PC_0);
ryood 5:846772a77d33 32 AnalogIn Ain6(PC_2);
ryood 5:846772a77d33 33 AnalogIn Ain7(PC_3);
ryood 0:2dcec10e9199 34
ryood 8:bb34a4894337 35 AnalogIn Ain8(PC_4);
ryood 8:bb34a4894337 36 AnalogIn Ain9(PB_1);
ryood 8:bb34a4894337 37 AnalogIn Ain10(PC_5);
ryood 8:bb34a4894337 38
ryood 0:2dcec10e9199 39 class EnvelopeAR {
ryood 0:2dcec10e9199 40 public:
ryood 0:2dcec10e9199 41 EnvelopeAR(int _attack, int _release, float _v0, float _v1, float _v2, float _attackTauRatio=0.36f, float _releaseTauRatio=0.36f) :
ryood 0:2dcec10e9199 42 amplitude(_v0),
ryood 0:2dcec10e9199 43 v0(_v0),
ryood 0:2dcec10e9199 44 v1(_v1),
ryood 0:2dcec10e9199 45 v2(_v2),
ryood 0:2dcec10e9199 46 vLast(_v0),
ryood 0:2dcec10e9199 47 attackTauRatio(_attackTauRatio),
ryood 0:2dcec10e9199 48 releaseTauRatio(_releaseTauRatio)
ryood 0:2dcec10e9199 49 {
ryood 0:2dcec10e9199 50 setAttack(_attack);
ryood 0:2dcec10e9199 51 setRelease(_release);
ryood 0:2dcec10e9199 52 }
ryood 0:2dcec10e9199 53
ryood 0:2dcec10e9199 54 ~EnvelopeAR() {}
ryood 0:2dcec10e9199 55
ryood 0:2dcec10e9199 56 void setAttack(int _attack) {
ryood 0:2dcec10e9199 57 attack = _attack;
ryood 0:2dcec10e9199 58 tau0 = attack * attackTauRatio;
ryood 0:2dcec10e9199 59 }
ryood 0:2dcec10e9199 60 int getAttack() { return attack; }
ryood 0:2dcec10e9199 61
ryood 0:2dcec10e9199 62 void setRelease(int _release) {
ryood 0:2dcec10e9199 63 release = _release;
ryood 0:2dcec10e9199 64 tau1 = release * releaseTauRatio;
ryood 0:2dcec10e9199 65 }
ryood 0:2dcec10e9199 66 int getRelease() { return release; }
ryood 0:2dcec10e9199 67
ryood 5:846772a77d33 68 void setAttackTauRatio(float _attackTauRatio) {
ryood 5:846772a77d33 69 attackTauRatio = _attackTauRatio;
ryood 5:846772a77d33 70 tau0 = attack * attackTauRatio;
ryood 5:846772a77d33 71 }
ryood 0:2dcec10e9199 72 float getAttackTauRatio() { return attackTauRatio; }
ryood 0:2dcec10e9199 73
ryood 5:846772a77d33 74 void setReleaseTauRatio(float _releaseTauRatio) {
ryood 5:846772a77d33 75 releaseTauRatio = _releaseTauRatio;
ryood 5:846772a77d33 76 tau1 = release * releaseTauRatio;
ryood 5:846772a77d33 77 }
ryood 0:2dcec10e9199 78 float getReleaseTauRatio() { return releaseTauRatio; }
ryood 5:846772a77d33 79
ryood 5:846772a77d33 80 float getTau0() { return tau0; }
ryood 5:846772a77d33 81 float getTau1() { return tau1; }
ryood 0:2dcec10e9199 82
ryood 0:2dcec10e9199 83 void setV0(float _v0) { v0 = _v0; }
ryood 0:2dcec10e9199 84 float getV0() { return v0; }
ryood 0:2dcec10e9199 85 void setV1(float _v1) { v1 = _v1; }
ryood 0:2dcec10e9199 86 float getV1() { return v1; }
ryood 0:2dcec10e9199 87 void setV2(float _v2) { v2 = _v2; }
ryood 0:2dcec10e9199 88 float getV2() { return v2; }
ryood 0:2dcec10e9199 89
ryood 0:2dcec10e9199 90 float getAmplitude() { return amplitude; }
ryood 0:2dcec10e9199 91 float getAmplitude(int tick) {
ryood 0:2dcec10e9199 92 if (tick < attack) {
ryood 0:2dcec10e9199 93 // attackの処理
ryood 0:2dcec10e9199 94 amplitude = v0 + (v1 - v0) * (1 - expf(-(float)tick / tau0));
ryood 0:2dcec10e9199 95 vLast = amplitude;
ryood 0:2dcec10e9199 96 }
ryood 0:2dcec10e9199 97 else {
ryood 0:2dcec10e9199 98 // releaseの処理
ryood 0:2dcec10e9199 99 amplitude = (vLast - v2) * (expf(-(float)(tick - attack) / tau1)) + v2;
ryood 0:2dcec10e9199 100 }
ryood 0:2dcec10e9199 101 return amplitude;
ryood 0:2dcec10e9199 102 }
ryood 0:2dcec10e9199 103
ryood 0:2dcec10e9199 104 private:
ryood 0:2dcec10e9199 105 int attack;
ryood 0:2dcec10e9199 106 int release;
ryood 0:2dcec10e9199 107 float amplitude;
ryood 0:2dcec10e9199 108 float v0;
ryood 0:2dcec10e9199 109 float v1;
ryood 0:2dcec10e9199 110 float v2;
ryood 0:2dcec10e9199 111 float vLast;
ryood 0:2dcec10e9199 112 float tau0;
ryood 0:2dcec10e9199 113 float tau1;
ryood 0:2dcec10e9199 114 float attackTauRatio;
ryood 0:2dcec10e9199 115 float releaseTauRatio;
ryood 0:2dcec10e9199 116 };
ryood 0:2dcec10e9199 117
ryood 5:846772a77d33 118 class EnvelopeParam {
ryood 5:846772a77d33 119 public:
ryood 5:846772a77d33 120 int attack;
ryood 5:846772a77d33 121 int release;
ryood 5:846772a77d33 122 float v0;
ryood 5:846772a77d33 123 float v1;
ryood 5:846772a77d33 124 float v2;
ryood 5:846772a77d33 125 float attackTauRatio;
ryood 5:846772a77d33 126 float releaseTauRatio;
ryood 5:846772a77d33 127 };
ryood 5:846772a77d33 128
ryood 0:2dcec10e9199 129 EnvelopeAR envelopeFrequency(
ryood 6:897d6392b408 130 5, 300, 880.0f, 120.0f, 40.0f, 0.36f, 0.1f);
ryood 5:846772a77d33 131 EnvelopeAR envelopeAmplitude(50, 200, 0.99f, 1.0f, 0.0f);
ryood 5:846772a77d33 132
ryood 5:846772a77d33 133 volatile EnvelopeParam frequencyParam;
ryood 5:846772a77d33 134 volatile EnvelopeParam amplitudeParam;
ryood 0:2dcec10e9199 135
ryood 3:f89b400cfe57 136 volatile int ticks;
ryood 3:f89b400cfe57 137 volatile int envelopeTicks;
ryood 3:f89b400cfe57 138 volatile float frequency;
ryood 3:f89b400cfe57 139 volatile float phi;
ryood 3:f89b400cfe57 140 volatile float phiDelta;
ryood 3:f89b400cfe57 141 volatile float amplitude;
ryood 3:f89b400cfe57 142
ryood 5:846772a77d33 143 volatile float bpm;
ryood 5:846772a77d33 144 volatile int envelopeLength;
ryood 0:2dcec10e9199 145
ryood 0:2dcec10e9199 146 void generateWave()
ryood 0:2dcec10e9199 147 {
ryood 0:2dcec10e9199 148 phi += phiDelta;
ryood 0:2dcec10e9199 149 if (phi >= 1.0f) {
ryood 0:2dcec10e9199 150 phi -= 2.0f;
ryood 0:2dcec10e9199 151 }
ryood 0:2dcec10e9199 152 float level = sinf(PI_F * phi) * amplitude;
ryood 1:f9b967ae26e4 153
ryood 3:f89b400cfe57 154 Dac1.write((level * 0.7f + 1.0f) / 2.0f);
ryood 0:2dcec10e9199 155 }
ryood 0:2dcec10e9199 156
ryood 0:2dcec10e9199 157 void generateEnvelope()
ryood 0:2dcec10e9199 158 {
ryood 0:2dcec10e9199 159 // Frequency Envelope
ryood 0:2dcec10e9199 160 frequency = envelopeFrequency.getAmplitude(envelopeTicks);
ryood 0:2dcec10e9199 161 phiDelta = 2.0f * frequency / SAMPLING_RATE;
ryood 0:2dcec10e9199 162
ryood 0:2dcec10e9199 163 // Amplitude Envelope
ryood 0:2dcec10e9199 164 amplitude = envelopeAmplitude.getAmplitude(envelopeTicks);
ryood 0:2dcec10e9199 165
ryood 0:2dcec10e9199 166 envelopeTicks++;
ryood 7:6735a343780e 167 if (envelopeTicks >= envelopeLength) {
ryood 0:2dcec10e9199 168 envelopeTicks = 0;
ryood 0:2dcec10e9199 169 }
ryood 0:2dcec10e9199 170 }
ryood 0:2dcec10e9199 171
ryood 2:8dff77a1ee4d 172 void update()
ryood 2:8dff77a1ee4d 173 {
ryood 3:f89b400cfe57 174 ticks++;
ryood 7:6735a343780e 175 if (ticks >= SAMPLING_RATE / 1000) {
ryood 3:f89b400cfe57 176 ticks = 0;
ryood 5:846772a77d33 177
ryood 5:846772a77d33 178 // set envelope parameters
ryood 5:846772a77d33 179 envelopeLength = 60 * 1000 / bpm;
ryood 5:846772a77d33 180
ryood 5:846772a77d33 181 envelopeAmplitude.setAttack(amplitudeParam.attack);
ryood 5:846772a77d33 182 envelopeAmplitude.setRelease(amplitudeParam.release);
ryood 5:846772a77d33 183 envelopeAmplitude.setV0(amplitudeParam.v0);
ryood 5:846772a77d33 184 envelopeAmplitude.setV1(amplitudeParam.v1);
ryood 5:846772a77d33 185 envelopeAmplitude.setV2(amplitudeParam.v2);
ryood 5:846772a77d33 186 envelopeAmplitude.setAttackTauRatio(amplitudeParam.attackTauRatio);
ryood 5:846772a77d33 187 envelopeAmplitude.setReleaseTauRatio(amplitudeParam.releaseTauRatio);
ryood 5:846772a77d33 188
ryood 6:897d6392b408 189 envelopeFrequency.setAttack(frequencyParam.attack);
ryood 6:897d6392b408 190 envelopeFrequency.setRelease(frequencyParam.release);
ryood 5:846772a77d33 191 envelopeFrequency.setV0(frequencyParam.v0);
ryood 6:897d6392b408 192 envelopeFrequency.setV1(frequencyParam.v1);
ryood 6:897d6392b408 193 envelopeFrequency.setV2(frequencyParam.v2);
ryood 6:897d6392b408 194 envelopeFrequency.setAttackTauRatio(frequencyParam.attackTauRatio);
ryood 6:897d6392b408 195 envelopeFrequency.setReleaseTauRatio(frequencyParam.releaseTauRatio);
ryood 5:846772a77d33 196
ryood 2:8dff77a1ee4d 197 generateEnvelope();
ryood 2:8dff77a1ee4d 198 }
ryood 2:8dff77a1ee4d 199 generateWave();
ryood 2:8dff77a1ee4d 200 }
ryood 2:8dff77a1ee4d 201
ryood 5:846772a77d33 202 void setParams()
ryood 5:846772a77d33 203 {
ryood 5:846772a77d33 204 bpm = Ain0.read() * 180.0f + 60.0f;
ryood 5:846772a77d33 205
ryood 5:846772a77d33 206 amplitudeParam.attack = Ain1.read() * envelopeLength;
ryood 5:846772a77d33 207 amplitudeParam.release = Ain2.read() * envelopeLength;
ryood 5:846772a77d33 208 amplitudeParam.v0 = Ain3.read();
ryood 5:846772a77d33 209 amplitudeParam.v1 = 1.0f;
ryood 5:846772a77d33 210 amplitudeParam.v2 = 0.0f;
ryood 5:846772a77d33 211 amplitudeParam.attackTauRatio = 0.36f;
ryood 6:897d6392b408 212 amplitudeParam.releaseTauRatio = Ain4.read();
ryood 5:846772a77d33 213
ryood 6:897d6392b408 214 frequencyParam.attack = 5;
ryood 6:897d6392b408 215 frequencyParam.release = 300;
ryood 6:897d6392b408 216 frequencyParam.v0 = Ain5.read() * 4000.0f;
ryood 6:897d6392b408 217 frequencyParam.v1 = Ain6.read() * 400.0f;
ryood 6:897d6392b408 218 frequencyParam.v2 = Ain7.read() * 400.0f;
ryood 6:897d6392b408 219 frequencyParam.attackTauRatio = 0.36f;
ryood 6:897d6392b408 220 frequencyParam.releaseTauRatio = 0.1f;
ryood 5:846772a77d33 221 }
ryood 5:846772a77d33 222
ryood 0:2dcec10e9199 223 int main()
ryood 0:2dcec10e9199 224 {
ryood 0:2dcec10e9199 225 printf("%s %s\r\n", TITLE_STR1, TITLE_STR2);
ryood 0:2dcec10e9199 226
ryood 0:2dcec10e9199 227 frequency = 1000.0f;
ryood 0:2dcec10e9199 228 phiDelta = 2.0f * frequency / SAMPLING_RATE;
ryood 0:2dcec10e9199 229 amplitude = 1.0f;
ryood 0:2dcec10e9199 230
ryood 3:f89b400cfe57 231 ticks = 0;
ryood 2:8dff77a1ee4d 232 envelopeTicks = 0;
ryood 1:f9b967ae26e4 233
ryood 5:846772a77d33 234 bpm = 120.0f;
ryood 5:846772a77d33 235 setParams();
ryood 5:846772a77d33 236
ryood 2:8dff77a1ee4d 237 Ticker samplingTicker;
ryood 2:8dff77a1ee4d 238 samplingTicker.attach(&update, SAMPLING_PERIOD);
ryood 2:8dff77a1ee4d 239
ryood 3:f89b400cfe57 240 for (;;) {
ryood 5:846772a77d33 241 setParams();
ryood 6:897d6392b408 242 printf("%.1f\t%d\t", bpm, envelopeLength);
ryood 6:897d6392b408 243
ryood 6:897d6392b408 244 printf("%d\t%d\t", amplitudeParam.attack, amplitudeParam.release);
ryood 6:897d6392b408 245 printf("%.2f\t%.2f\t%.2f\t", amplitudeParam.v0, amplitudeParam.v1, amplitudeParam.v2);
ryood 6:897d6392b408 246 printf("%.2f\t%.2f\t", amplitudeParam.attackTauRatio, amplitudeParam.releaseTauRatio);
ryood 6:897d6392b408 247
ryood 6:897d6392b408 248 printf("%d\t%d\t", frequencyParam.attack, frequencyParam.release);
ryood 6:897d6392b408 249 printf("%.2f\t%.2f\t%.2f\t", frequencyParam.v0, frequencyParam.v1, frequencyParam.v2);
ryood 6:897d6392b408 250 printf("%.2f\t%.2f\r\n", frequencyParam.attackTauRatio, frequencyParam.releaseTauRatio);
ryood 6:897d6392b408 251
ryood 4:9f53a82fc1b6 252 Thread::wait(500);
ryood 3:f89b400cfe57 253 }
ryood 0:2dcec10e9199 254 }