Daniel Levine / Adafruit_IS31FL3731

Port of the Adafruit_IS31FL3731 library for Arduino. Enables control of the feather Charliewing LED Matrix peripheral board. Makes use of the I2Cdev library for I2C.

Dependencies:   I2Cdev_MAX32630FTHR

Defaulty uses pinmap for the Maxim 32630FTHR Pegasus board. For a different board, change pin definitions in I2Cdev.h

Adafruit_IS31FL3731.cpp@0:9a73d45a17de, 2018-03-13 (annotated)

Committer:
DVLevine
Date:
Tue Mar 13 01:14:21 2018 +0000
Revision:
0:9a73d45a17de
Child:
3:0da61b470b86
Enable usage of Charlieplex LED Matrix feather wing with MAX32630FTHR

Who changed what in which revision?

UserRevisionLine numberNew contents of line
DVLevine 0:9a73d45a17de 1 #include "Adafruit_IS31FL3731.h"
DVLevine 0:9a73d45a17de 2 #include "Adafruit_GFX.h"
DVLevine 0:9a73d45a17de 3 #ifndef _swap_int16_t
DVLevine 0:9a73d45a17de 4 #define _swap_int16_t(a, b) { int16_t t = a; a = b; b = t; }
DVLevine 0:9a73d45a17de 5 #endif
DVLevine 0:9a73d45a17de 6
DVLevine 0:9a73d45a17de 7 /* Constructor */
DVLevine 0:9a73d45a17de 8 /*Adafruit_IS31FL3731::Adafruit_IS31FL3731(uint8_t x, uint8_t y) : Adafruit_GFX(x, y) {
DVLevine 0:9a73d45a17de 9 //myI2C = theI2C;
DVLevine 0:9a73d45a17de 10 I2Cdev* myDevI2C = new I2Cdev();
DVLevine 0:9a73d45a17de 11 myI2C = myDevI2C;
DVLevine 0:9a73d45a17de 12 }
DVLevine 0:9a73d45a17de 13
DVLevine 0:9a73d45a17de 14 Adafruit_IS31FL3731_Wing::Adafruit_IS31FL3731_Wing() : Adafruit_IS31FL3731(15, 7) {
DVLevine 0:9a73d45a17de 15 //myI2C = theI2C;
DVLevine 0:9a73d45a17de 16 //myDevI2C
DVLevine 0:9a73d45a17de 17 I2Cdev* myDevI2C = new I2Cdev();
DVLevine 0:9a73d45a17de 18 myI2C = myDevI2C;
DVLevine 0:9a73d45a17de 19 }*/
DVLevine 0:9a73d45a17de 20
DVLevine 0:9a73d45a17de 21 bool Adafruit_IS31FL3731::begin(uint8_t addr) {
DVLevine 0:9a73d45a17de 22 //Wire.begin();
DVLevine 0:9a73d45a17de 23
DVLevine 0:9a73d45a17de 24
DVLevine 0:9a73d45a17de 25 _i2caddr = addr;
DVLevine 0:9a73d45a17de 26 _frame = 0;
DVLevine 0:9a73d45a17de 27
DVLevine 0:9a73d45a17de 28 // shutdown
DVLevine 0:9a73d45a17de 29 writeRegister8(ISSI_BANK_FUNCTIONREG, ISSI_REG_SHUTDOWN, 0x00);
DVLevine 0:9a73d45a17de 30
DVLevine 0:9a73d45a17de 31 //delay(10);
DVLevine 0:9a73d45a17de 32 wait(0.01);
DVLevine 0:9a73d45a17de 33
DVLevine 0:9a73d45a17de 34
DVLevine 0:9a73d45a17de 35 // out of shutdown
DVLevine 0:9a73d45a17de 36 writeRegister8(ISSI_BANK_FUNCTIONREG, ISSI_REG_SHUTDOWN, 0x01);
DVLevine 0:9a73d45a17de 37
DVLevine 0:9a73d45a17de 38 // picture mode
DVLevine 0:9a73d45a17de 39 writeRegister8(ISSI_BANK_FUNCTIONREG, ISSI_REG_CONFIG, ISSI_REG_CONFIG_PICTUREMODE);
DVLevine 0:9a73d45a17de 40
DVLevine 0:9a73d45a17de 41 displayFrame(_frame);
DVLevine 0:9a73d45a17de 42
DVLevine 0:9a73d45a17de 43 // all LEDs on & 0 PWM
DVLevine 0:9a73d45a17de 44 clear(); // set each led to 0 PWM
DVLevine 0:9a73d45a17de 45
DVLevine 0:9a73d45a17de 46 for (uint8_t f=0; f<8; f++) {
DVLevine 0:9a73d45a17de 47 for (uint8_t i=0; i<=0x11; i++)
DVLevine 0:9a73d45a17de 48 writeRegister8(f, i, 0xff); // each 8 LEDs on
DVLevine 0:9a73d45a17de 49 }
DVLevine 0:9a73d45a17de 50
DVLevine 0:9a73d45a17de 51 audioSync(false);
DVLevine 0:9a73d45a17de 52
DVLevine 0:9a73d45a17de 53 return true;
DVLevine 0:9a73d45a17de 54 }
DVLevine 0:9a73d45a17de 55
DVLevine 0:9a73d45a17de 56 void Adafruit_IS31FL3731::clear(void) {
DVLevine 0:9a73d45a17de 57 // all LEDs on & 0 PWM
DVLevine 0:9a73d45a17de 58
DVLevine 0:9a73d45a17de 59 selectBank(_frame);
DVLevine 0:9a73d45a17de 60
DVLevine 0:9a73d45a17de 61 uint8_t nemo[24] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
DVLevine 0:9a73d45a17de 62
DVLevine 0:9a73d45a17de 63 for (uint8_t i=0; i<6; i++) {
DVLevine 0:9a73d45a17de 64 // Wire.beginTransmission(_i2caddr);
DVLevine 0:9a73d45a17de 65 // Wire.write((byte) 0x24+i*24);
DVLevine 0:9a73d45a17de 66 // write 24 bytes at once
DVLevine 0:9a73d45a17de 67 myI2C->writeBytes(_i2caddr, 0x24+i*24, 24, nemo);
DVLevine 0:9a73d45a17de 68
DVLevine 0:9a73d45a17de 69 /* for (uint8_t j=0; j<24; j++) {
DVLevine 0:9a73d45a17de 70 // Wire.write((byte) 0);
DVLevine 0:9a73d45a17de 71 myI2C->writeByte(_i2caddr, (unsigned char)0x24+i*24, (unsigned char)0);
DVLevine 0:9a73d45a17de 72
DVLevine 0:9a73d45a17de 73 }*/
DVLevine 0:9a73d45a17de 74 // Wire.endTransmission();
DVLevine 0:9a73d45a17de 75 }
DVLevine 0:9a73d45a17de 76 }
DVLevine 0:9a73d45a17de 77
DVLevine 0:9a73d45a17de 78 void Adafruit_IS31FL3731::setLEDPWM(uint8_t lednum, uint8_t pwm, uint8_t bank) {
DVLevine 0:9a73d45a17de 79 if (lednum >= 144) return;
DVLevine 0:9a73d45a17de 80 writeRegister8(bank, 0x24+lednum, pwm);
DVLevine 0:9a73d45a17de 81 }
DVLevine 0:9a73d45a17de 82
DVLevine 0:9a73d45a17de 83
DVLevine 0:9a73d45a17de 84 void Adafruit_IS31FL3731_Wing::drawPixel(int16_t x, int16_t y, uint16_t color) {
DVLevine 0:9a73d45a17de 85 // check rotation, move pixel around if necessary
DVLevine 0:9a73d45a17de 86 //myboss->printf("WING %i x %i y %i color\n",x,y,color);
DVLevine 0:9a73d45a17de 87 switch (getRotation()) {
DVLevine 0:9a73d45a17de 88 case 1:
DVLevine 0:9a73d45a17de 89 _swap_int16_t(x, y);
DVLevine 0:9a73d45a17de 90 x = 15 - x - 1;
DVLevine 0:9a73d45a17de 91 break;
DVLevine 0:9a73d45a17de 92 case 2:
DVLevine 0:9a73d45a17de 93 x = 15 - x - 1;
DVLevine 0:9a73d45a17de 94 y = 7 - y - 1;
DVLevine 0:9a73d45a17de 95 break;
DVLevine 0:9a73d45a17de 96 case 3:
DVLevine 0:9a73d45a17de 97 _swap_int16_t(x, y);
DVLevine 0:9a73d45a17de 98 y = 9 - y - 1;
DVLevine 0:9a73d45a17de 99 break;
DVLevine 0:9a73d45a17de 100 }
DVLevine 0:9a73d45a17de 101
DVLevine 0:9a73d45a17de 102 // charlie wing is smaller:
DVLevine 0:9a73d45a17de 103 if ((x < 0) || (x >= 16) || (y < 0) || (y >= 7)) return;
DVLevine 0:9a73d45a17de 104
DVLevine 0:9a73d45a17de 105 if (x > 7) {
DVLevine 0:9a73d45a17de 106 x=15-x;
DVLevine 0:9a73d45a17de 107 y += 8;
DVLevine 0:9a73d45a17de 108 } else {
DVLevine 0:9a73d45a17de 109 y = 7-y;
DVLevine 0:9a73d45a17de 110 }
DVLevine 0:9a73d45a17de 111
DVLevine 0:9a73d45a17de 112 _swap_int16_t(x, y);
DVLevine 0:9a73d45a17de 113
DVLevine 0:9a73d45a17de 114 if (color > 255) color = 255; // PWM 8bit max
DVLevine 0:9a73d45a17de 115
DVLevine 0:9a73d45a17de 116 setLEDPWM(x + y*16, color, _frame);
DVLevine 0:9a73d45a17de 117 return;
DVLevine 0:9a73d45a17de 118 }
DVLevine 0:9a73d45a17de 119
DVLevine 0:9a73d45a17de 120
DVLevine 0:9a73d45a17de 121
DVLevine 0:9a73d45a17de 122 void Adafruit_IS31FL3731::drawPixel(int16_t x, int16_t y, uint16_t color) {
DVLevine 0:9a73d45a17de 123 // check rotation, move pixel around if necessary
DVLevine 0:9a73d45a17de 124 // myboss->printf("%i x %i y %i color\n",x,y,color);
DVLevine 0:9a73d45a17de 125 switch (getRotation()) {
DVLevine 0:9a73d45a17de 126 case 1:
DVLevine 0:9a73d45a17de 127 _swap_int16_t(x, y);
DVLevine 0:9a73d45a17de 128 x = 16 - x - 1;
DVLevine 0:9a73d45a17de 129 break;
DVLevine 0:9a73d45a17de 130 case 2:
DVLevine 0:9a73d45a17de 131 x = 16 - x - 1;
DVLevine 0:9a73d45a17de 132 y = 9 - y - 1;
DVLevine 0:9a73d45a17de 133 break;
DVLevine 0:9a73d45a17de 134 case 3:
DVLevine 0:9a73d45a17de 135 _swap_int16_t(x, y);
DVLevine 0:9a73d45a17de 136 y = 9 - y - 1;
DVLevine 0:9a73d45a17de 137 break;
DVLevine 0:9a73d45a17de 138 }
DVLevine 0:9a73d45a17de 139
DVLevine 0:9a73d45a17de 140 if ((x < 0) || (x >= 16)) return;
DVLevine 0:9a73d45a17de 141 if ((y < 0) || (y >= 9)) return;
DVLevine 0:9a73d45a17de 142 if (color > 255) color = 255; // PWM 8bit max
DVLevine 0:9a73d45a17de 143
DVLevine 0:9a73d45a17de 144 setLEDPWM(x + y*16, color, _frame);
DVLevine 0:9a73d45a17de 145 return;
DVLevine 0:9a73d45a17de 146 }
DVLevine 0:9a73d45a17de 147
DVLevine 0:9a73d45a17de 148 void Adafruit_IS31FL3731::setFrame(uint8_t f) {
DVLevine 0:9a73d45a17de 149 _frame = f;
DVLevine 0:9a73d45a17de 150 }
DVLevine 0:9a73d45a17de 151
DVLevine 0:9a73d45a17de 152 void Adafruit_IS31FL3731::displayFrame(uint8_t f) {
DVLevine 0:9a73d45a17de 153 if (f > 7) f = 0;
DVLevine 0:9a73d45a17de 154 writeRegister8(ISSI_BANK_FUNCTIONREG, ISSI_REG_PICTUREFRAME, f);
DVLevine 0:9a73d45a17de 155 }
DVLevine 0:9a73d45a17de 156
DVLevine 0:9a73d45a17de 157
DVLevine 0:9a73d45a17de 158 void Adafruit_IS31FL3731::selectBank(uint8_t b) {
DVLevine 0:9a73d45a17de 159 myI2C->writeByte(_i2caddr, ISSI_COMMANDREGISTER, b);
DVLevine 0:9a73d45a17de 160 /*Wire.beginTransmission(_i2caddr);
DVLevine 0:9a73d45a17de 161 Wire.write((byte)ISSI_COMMANDREGISTER);
DVLevine 0:9a73d45a17de 162 Wire.write(b);
DVLevine 0:9a73d45a17de 163 Wire.endTransmission();*/
DVLevine 0:9a73d45a17de 164 }
DVLevine 0:9a73d45a17de 165
DVLevine 0:9a73d45a17de 166 void Adafruit_IS31FL3731::audioSync(bool sync) {
DVLevine 0:9a73d45a17de 167 if (sync) {
DVLevine 0:9a73d45a17de 168 writeRegister8(ISSI_BANK_FUNCTIONREG, ISSI_REG_AUDIOSYNC, 0x1);
DVLevine 0:9a73d45a17de 169 } else {
DVLevine 0:9a73d45a17de 170 writeRegister8(ISSI_BANK_FUNCTIONREG, ISSI_REG_AUDIOSYNC, 0x0);
DVLevine 0:9a73d45a17de 171 }
DVLevine 0:9a73d45a17de 172 }
DVLevine 0:9a73d45a17de 173
DVLevine 0:9a73d45a17de 174 /*************/
DVLevine 0:9a73d45a17de 175 void Adafruit_IS31FL3731::writeRegister8(uint8_t b, uint8_t reg, uint8_t data) {
DVLevine 0:9a73d45a17de 176 selectBank(b);
DVLevine 0:9a73d45a17de 177
DVLevine 0:9a73d45a17de 178 myI2C->writeByte(_i2caddr, reg, data);
DVLevine 0:9a73d45a17de 179
DVLevine 0:9a73d45a17de 180
DVLevine 0:9a73d45a17de 181 /*Wire.beginTransmission(_i2caddr);
DVLevine 0:9a73d45a17de 182 Wire.write((byte)reg);
DVLevine 0:9a73d45a17de 183 Wire.write((byte)data);
DVLevine 0:9a73d45a17de 184 Wire.endTransmission();*/
DVLevine 0:9a73d45a17de 185 //Serial.print("$"); Serial.print(reg, HEX);
DVLevine 0:9a73d45a17de 186 //Serial.print(" = 0x"); Serial.println(data, HEX);
DVLevine 0:9a73d45a17de 187 }
DVLevine 0:9a73d45a17de 188
DVLevine 0:9a73d45a17de 189 uint8_t Adafruit_IS31FL3731::readRegister8(uint8_t bank, uint8_t reg) {
DVLevine 0:9a73d45a17de 190 uint8_t x;
DVLevine 0:9a73d45a17de 191 uint8_t status;
DVLevine 0:9a73d45a17de 192
DVLevine 0:9a73d45a17de 193 selectBank(bank);
DVLevine 0:9a73d45a17de 194 /*
DVLevine 0:9a73d45a17de 195 Wire.beginTransmission(_i2caddr);
DVLevine 0:9a73d45a17de 196 Wire.write((byte)reg);
DVLevine 0:9a73d45a17de 197 Wire.endTransmission();
DVLevine 0:9a73d45a17de 198
DVLevine 0:9a73d45a17de 199 Wire.beginTransmission(_i2caddr);
DVLevine 0:9a73d45a17de 200 Wire.requestFrom(_i2caddr, (byte)1);
DVLevine 0:9a73d45a17de 201 x = Wire.read();*/
DVLevine 0:9a73d45a17de 202
DVLevine 0:9a73d45a17de 203 status = myI2C->readByte(_i2caddr, reg, &x);
DVLevine 0:9a73d45a17de 204
DVLevine 0:9a73d45a17de 205 //Wire.endTransmission();
DVLevine 0:9a73d45a17de 206
DVLevine 0:9a73d45a17de 207 // Serial.print("$"); Serial.print(reg, HEX);
DVLevine 0:9a73d45a17de 208 // Serial.print(": 0x"); Serial.println(x, HEX);
DVLevine 0:9a73d45a17de 209
DVLevine 0:9a73d45a17de 210 return x;
DVLevine 0:9a73d45a17de 211 }