Eric Xu / Mbed 2 deprecated Arcade_BlueO

Multi-game multiplayer arcade gaming system meant for the blue O when playing Super Tic-Tac-Toe.

Dependencies:   4DGL-uLCD-SE PinDetect SDFileSystem mbed wave_player

mpr121.cpp@2:da0f01fbd25c, 2015-12-04 (annotated)

Committer:
soapy12312
Date:
Fri Dec 04 23:00:42 2015 +0000
Revision:
2:da0f01fbd25c
Parent:
0:218d3fb75950 
Multi-game multiplayer arcade gaming system meant for the blue O when playing Super Tic-Tac-Toe.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
soapy12312 0:218d3fb75950 1 /*
soapy12312 0:218d3fb75950 2 Copyright (c) 2011 Anthony Buckton (abuckton [at] blackink [dot} net {dot} au)
soapy12312 0:218d3fb75950 3
soapy12312 0:218d3fb75950 4 Permission is hereby granted, free of charge, to any person obtaining a copy
soapy12312 0:218d3fb75950 5 of this software and associated documentation files (the "Software"), to deal
soapy12312 0:218d3fb75950 6 in the Software without restriction, including without limitation the rights
soapy12312 0:218d3fb75950 7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
soapy12312 0:218d3fb75950 8 copies of the Software, and to permit persons to whom the Software is
soapy12312 0:218d3fb75950 9 furnished to do so, subject to the following conditions:
soapy12312 0:218d3fb75950 10
soapy12312 0:218d3fb75950 11 The above copyright notice and this permission notice shall be included in
soapy12312 0:218d3fb75950 12 all copies or substantial portions of the Software.
soapy12312 0:218d3fb75950 13
soapy12312 0:218d3fb75950 14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
soapy12312 0:218d3fb75950 15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
soapy12312 0:218d3fb75950 16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
soapy12312 0:218d3fb75950 17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
soapy12312 0:218d3fb75950 18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
soapy12312 0:218d3fb75950 19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
soapy12312 0:218d3fb75950 20 THE SOFTWARE.
soapy12312 0:218d3fb75950 21 */
soapy12312 0:218d3fb75950 22
soapy12312 0:218d3fb75950 23 #include <mbed.h>
soapy12312 0:218d3fb75950 24 #include <sstream>
soapy12312 0:218d3fb75950 25 #include <string>
soapy12312 0:218d3fb75950 26 #include <list>
soapy12312 0:218d3fb75950 27
soapy12312 0:218d3fb75950 28 #include <mpr121.h>
soapy12312 0:218d3fb75950 29
soapy12312 0:218d3fb75950 30 // EDITED CODE
soapy12312 0:218d3fb75950 31 Mpr121::Mpr121()
soapy12312 0:218d3fb75950 32 {
soapy12312 0:218d3fb75950 33 }
soapy12312 0:218d3fb75950 34
soapy12312 0:218d3fb75950 35 Mpr121::Mpr121(I2C *i2c, Address i2cAddress)
soapy12312 0:218d3fb75950 36 {
soapy12312 0:218d3fb75950 37 this->i2c = i2c;
soapy12312 0:218d3fb75950 38
soapy12312 0:218d3fb75950 39 address = i2cAddress;
soapy12312 0:218d3fb75950 40
soapy12312 0:218d3fb75950 41 // Configure the MPR121 settings to default
soapy12312 0:218d3fb75950 42 this->configureSettings();
soapy12312 0:218d3fb75950 43 }
soapy12312 0:218d3fb75950 44
soapy12312 0:218d3fb75950 45
soapy12312 0:218d3fb75950 46 void Mpr121::configureSettings()
soapy12312 0:218d3fb75950 47 {
soapy12312 0:218d3fb75950 48 // Put the MPR into setup mode
soapy12312 0:218d3fb75950 49 this->write(ELE_CFG,0x00);
soapy12312 0:218d3fb75950 50
soapy12312 0:218d3fb75950 51 // Electrode filters for when data is > baseline
soapy12312 0:218d3fb75950 52 unsigned char gtBaseline[] = {
soapy12312 0:218d3fb75950 53 0x01, //MHD_R
soapy12312 0:218d3fb75950 54 0x01, //NHD_R
soapy12312 0:218d3fb75950 55 0x00, //NCL_R
soapy12312 0:218d3fb75950 56 0x00 //FDL_R
soapy12312 0:218d3fb75950 57 };
soapy12312 0:218d3fb75950 58
soapy12312 0:218d3fb75950 59 writeMany(MHD_R,gtBaseline,4);
soapy12312 0:218d3fb75950 60
soapy12312 0:218d3fb75950 61 // Electrode filters for when data is < baseline
soapy12312 0:218d3fb75950 62 unsigned char ltBaseline[] = {
soapy12312 0:218d3fb75950 63 0x01, //MHD_F
soapy12312 0:218d3fb75950 64 0x01, //NHD_F
soapy12312 0:218d3fb75950 65 0xFF, //NCL_F
soapy12312 0:218d3fb75950 66 0x02 //FDL_F
soapy12312 0:218d3fb75950 67 };
soapy12312 0:218d3fb75950 68
soapy12312 0:218d3fb75950 69 writeMany(MHD_F,ltBaseline,4);
soapy12312 0:218d3fb75950 70
soapy12312 0:218d3fb75950 71 // Electrode touch and release thresholds
soapy12312 0:218d3fb75950 72 unsigned char electrodeThresholds[] = {
soapy12312 0:218d3fb75950 73 E_THR_T, // Touch Threshhold
soapy12312 0:218d3fb75950 74 E_THR_R // Release Threshold
soapy12312 0:218d3fb75950 75 };
soapy12312 0:218d3fb75950 76
soapy12312 0:218d3fb75950 77 for(int i=0; i<12; i++){
soapy12312 0:218d3fb75950 78 int result = writeMany((ELE0_T+(i*2)),electrodeThresholds,2);
soapy12312 0:218d3fb75950 79 }
soapy12312 0:218d3fb75950 80
soapy12312 0:218d3fb75950 81 // Proximity Settings
soapy12312 0:218d3fb75950 82 unsigned char proximitySettings[] = {
soapy12312 0:218d3fb75950 83 0xff, //MHD_Prox_R
soapy12312 0:218d3fb75950 84 0xff, //NHD_Prox_R
soapy12312 0:218d3fb75950 85 0x00, //NCL_Prox_R
soapy12312 0:218d3fb75950 86 0x00, //FDL_Prox_R
soapy12312 0:218d3fb75950 87 0x01, //MHD_Prox_F
soapy12312 0:218d3fb75950 88 0x01, //NHD_Prox_F
soapy12312 0:218d3fb75950 89 0xFF, //NCL_Prox_F
soapy12312 0:218d3fb75950 90 0xff, //FDL_Prox_F
soapy12312 0:218d3fb75950 91 0x00, //NHD_Prox_T
soapy12312 0:218d3fb75950 92 0x00, //NCL_Prox_T
soapy12312 0:218d3fb75950 93 0x00 //NFD_Prox_T
soapy12312 0:218d3fb75950 94 };
soapy12312 0:218d3fb75950 95 writeMany(MHDPROXR,proximitySettings,11);
soapy12312 0:218d3fb75950 96
soapy12312 0:218d3fb75950 97 unsigned char proxThresh[] = {
soapy12312 0:218d3fb75950 98 PROX_THR_T, // Touch Threshold
soapy12312 0:218d3fb75950 99 PROX_THR_R // Release Threshold
soapy12312 0:218d3fb75950 100 };
soapy12312 0:218d3fb75950 101 writeMany(EPROXTTH,proxThresh,2);
soapy12312 0:218d3fb75950 102
soapy12312 0:218d3fb75950 103 this->write(FIL_CFG,0x04);
soapy12312 0:218d3fb75950 104
soapy12312 0:218d3fb75950 105 // Set the electrode config to transition to active mode
soapy12312 0:218d3fb75950 106 this->write(ELE_CFG,0x0c);
soapy12312 0:218d3fb75950 107 }
soapy12312 0:218d3fb75950 108
soapy12312 0:218d3fb75950 109 void Mpr121::setElectrodeThreshold(int electrode, unsigned char touch, unsigned char release){
soapy12312 0:218d3fb75950 110
soapy12312 0:218d3fb75950 111 if(electrode > 11) return;
soapy12312 0:218d3fb75950 112
soapy12312 0:218d3fb75950 113 // Get the current mode
soapy12312 0:218d3fb75950 114 unsigned char mode = this->read(ELE_CFG);
soapy12312 0:218d3fb75950 115
soapy12312 0:218d3fb75950 116 // Put the MPR into setup mode
soapy12312 0:218d3fb75950 117 this->write(ELE_CFG,0x00);
soapy12312 0:218d3fb75950 118
soapy12312 0:218d3fb75950 119 // Write the new threshold
soapy12312 0:218d3fb75950 120 this->write((ELE0_T+(electrode*2)), touch);
soapy12312 0:218d3fb75950 121 this->write((ELE0_T+(electrode*2)+1), release);
soapy12312 0:218d3fb75950 122
soapy12312 0:218d3fb75950 123 //Restore the operating mode
soapy12312 0:218d3fb75950 124 this->write(ELE_CFG, mode);
soapy12312 0:218d3fb75950 125 }
soapy12312 0:218d3fb75950 126
soapy12312 0:218d3fb75950 127
soapy12312 0:218d3fb75950 128 unsigned char Mpr121::read(int key){
soapy12312 0:218d3fb75950 129
soapy12312 0:218d3fb75950 130 unsigned char data[2];
soapy12312 0:218d3fb75950 131
soapy12312 0:218d3fb75950 132 //Start the command
soapy12312 0:218d3fb75950 133 i2c->start();
soapy12312 0:218d3fb75950 134
soapy12312 0:218d3fb75950 135 // Address the target (Write mode)
soapy12312 0:218d3fb75950 136 int ack1= i2c->write(address);
soapy12312 0:218d3fb75950 137
soapy12312 0:218d3fb75950 138 // Set the register key to read
soapy12312 0:218d3fb75950 139 int ack2 = i2c->write(key);
soapy12312 0:218d3fb75950 140
soapy12312 0:218d3fb75950 141 // Re-start for read of data
soapy12312 0:218d3fb75950 142 i2c->start();
soapy12312 0:218d3fb75950 143
soapy12312 0:218d3fb75950 144 // Re-send the target address in read mode
soapy12312 0:218d3fb75950 145 int ack3 = i2c->write(address+1);
soapy12312 0:218d3fb75950 146
soapy12312 0:218d3fb75950 147 // Read in the result
soapy12312 0:218d3fb75950 148 data[0] = i2c->read(0);
soapy12312 0:218d3fb75950 149
soapy12312 0:218d3fb75950 150 // Reset the bus
soapy12312 0:218d3fb75950 151 i2c->stop();
soapy12312 0:218d3fb75950 152
soapy12312 0:218d3fb75950 153 return data[0];
soapy12312 0:218d3fb75950 154 }
soapy12312 0:218d3fb75950 155
soapy12312 0:218d3fb75950 156
soapy12312 0:218d3fb75950 157 int Mpr121::write(int key, unsigned char value){
soapy12312 0:218d3fb75950 158
soapy12312 0:218d3fb75950 159 //Start the command
soapy12312 0:218d3fb75950 160 i2c->start();
soapy12312 0:218d3fb75950 161
soapy12312 0:218d3fb75950 162 // Address the target (Write mode)
soapy12312 0:218d3fb75950 163 int ack1= i2c->write(address);
soapy12312 0:218d3fb75950 164
soapy12312 0:218d3fb75950 165 // Set the register key to write
soapy12312 0:218d3fb75950 166 int ack2 = i2c->write(key);
soapy12312 0:218d3fb75950 167
soapy12312 0:218d3fb75950 168 // Read in the result
soapy12312 0:218d3fb75950 169 int ack3 = i2c->write(value);
soapy12312 0:218d3fb75950 170
soapy12312 0:218d3fb75950 171 // Reset the bus
soapy12312 0:218d3fb75950 172 i2c->stop();
soapy12312 0:218d3fb75950 173
soapy12312 0:218d3fb75950 174 return (ack1+ack2+ack3)-3;
soapy12312 0:218d3fb75950 175 }
soapy12312 0:218d3fb75950 176
soapy12312 0:218d3fb75950 177
soapy12312 0:218d3fb75950 178 int Mpr121::writeMany(int start, unsigned char* dataSet, int length){
soapy12312 0:218d3fb75950 179 //Start the command
soapy12312 0:218d3fb75950 180 i2c->start();
soapy12312 0:218d3fb75950 181
soapy12312 0:218d3fb75950 182 // Address the target (Write mode)
soapy12312 0:218d3fb75950 183 int ack= i2c->write(address);
soapy12312 0:218d3fb75950 184 if(ack!=1){
soapy12312 0:218d3fb75950 185 return -1;
soapy12312 0:218d3fb75950 186 }
soapy12312 0:218d3fb75950 187
soapy12312 0:218d3fb75950 188 // Set the register key to write
soapy12312 0:218d3fb75950 189 ack = i2c->write(start);
soapy12312 0:218d3fb75950 190 if(ack!=1){
soapy12312 0:218d3fb75950 191 return -1;
soapy12312 0:218d3fb75950 192 }
soapy12312 0:218d3fb75950 193
soapy12312 0:218d3fb75950 194 // Write the date set
soapy12312 0:218d3fb75950 195 int count = 0;
soapy12312 0:218d3fb75950 196 while(ack==1 && (count < length)){
soapy12312 0:218d3fb75950 197 ack = i2c->write(dataSet[count]);
soapy12312 0:218d3fb75950 198 count++;
soapy12312 0:218d3fb75950 199 }
soapy12312 0:218d3fb75950 200 // Stop the cmd
soapy12312 0:218d3fb75950 201 i2c->stop();
soapy12312 0:218d3fb75950 202
soapy12312 0:218d3fb75950 203 return count;
soapy12312 0:218d3fb75950 204 }
soapy12312 0:218d3fb75950 205
soapy12312 0:218d3fb75950 206
soapy12312 0:218d3fb75950 207 bool Mpr121::getProximityMode(){
soapy12312 0:218d3fb75950 208 if(this->read(ELE_CFG) > 0x0c)
soapy12312 0:218d3fb75950 209 return true;
soapy12312 0:218d3fb75950 210 else
soapy12312 0:218d3fb75950 211 return false;
soapy12312 0:218d3fb75950 212 }
soapy12312 0:218d3fb75950 213
soapy12312 0:218d3fb75950 214 void Mpr121::setProximityMode(bool mode){
soapy12312 0:218d3fb75950 215 this->write(ELE_CFG,0x00);
soapy12312 0:218d3fb75950 216 if(mode){
soapy12312 0:218d3fb75950 217 this->write(ELE_CFG,0x30); //Sense proximity from ALL pads
soapy12312 0:218d3fb75950 218 } else {
soapy12312 0:218d3fb75950 219 this->write(ELE_CFG,0x0c); //Sense touch, all 12 pads active.
soapy12312 0:218d3fb75950 220 }
soapy12312 0:218d3fb75950 221 }
soapy12312 0:218d3fb75950 222
soapy12312 0:218d3fb75950 223
soapy12312 0:218d3fb75950 224 int Mpr121::readTouchData(){
soapy12312 0:218d3fb75950 225 return this->read(0x00);
soapy12312 0:218d3fb75950 226 }
soapy12312 0:218d3fb75950 227
soapy12312 0:218d3fb75950 228 // EDITED CODE
soapy12312 0:218d3fb75950 229 Mpr121& Mpr121::operator=(const Mpr121 &MPR121) {
soapy12312 0:218d3fb75950 230 i2c = MPR121.i2c;
soapy12312 0:218d3fb75950 231 address = MPR121.address;
soapy12312 0:218d3fb75950 232 return *this;
soapy12312 0:218d3fb75950 233 }