Graham Miles / Mbed 2 deprecated angryballs

A simple game

Dependencies:   4DGL-uLCD-SE mbed-rtos mbed

Fork of rtos_signals by mbed official

mpr121.cpp@4:2bb5deb83b81, 2016-11-04 (annotated)

Committer:
gmiles3
Date:
Fri Nov 04 13:45:06 2016 +0000
Revision:
4:2bb5deb83b81
Initial commit for angry balls game

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gmiles3 4:2bb5deb83b81 1 /*
gmiles3 4:2bb5deb83b81 2 Copyright (c) 2011 Anthony Buckton (abuckton [at] blackink [dot} net {dot} au)
gmiles3 4:2bb5deb83b81 3
gmiles3 4:2bb5deb83b81 4 Permission is hereby granted, free of charge, to any person obtaining a copy
gmiles3 4:2bb5deb83b81 5 of this software and associated documentation files (the "Software"), to deal
gmiles3 4:2bb5deb83b81 6 in the Software without restriction, including without limitation the rights
gmiles3 4:2bb5deb83b81 7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
gmiles3 4:2bb5deb83b81 8 copies of the Software, and to permit persons to whom the Software is
gmiles3 4:2bb5deb83b81 9 furnished to do so, subject to the following conditions:
gmiles3 4:2bb5deb83b81 10
gmiles3 4:2bb5deb83b81 11 The above copyright notice and this permission notice shall be included in
gmiles3 4:2bb5deb83b81 12 all copies or substantial portions of the Software.
gmiles3 4:2bb5deb83b81 13
gmiles3 4:2bb5deb83b81 14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
gmiles3 4:2bb5deb83b81 15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
gmiles3 4:2bb5deb83b81 16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
gmiles3 4:2bb5deb83b81 17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
gmiles3 4:2bb5deb83b81 18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
gmiles3 4:2bb5deb83b81 19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
gmiles3 4:2bb5deb83b81 20 THE SOFTWARE.
gmiles3 4:2bb5deb83b81 21 */
gmiles3 4:2bb5deb83b81 22
gmiles3 4:2bb5deb83b81 23 #include <mbed.h>
gmiles3 4:2bb5deb83b81 24 #include <sstream>
gmiles3 4:2bb5deb83b81 25 #include <string>
gmiles3 4:2bb5deb83b81 26 #include <list>
gmiles3 4:2bb5deb83b81 27
gmiles3 4:2bb5deb83b81 28 #include <mpr121.h>
gmiles3 4:2bb5deb83b81 29
gmiles3 4:2bb5deb83b81 30 Mpr121::Mpr121(I2C *i2c, Address i2cAddress)
gmiles3 4:2bb5deb83b81 31 {
gmiles3 4:2bb5deb83b81 32 this->i2c = i2c;
gmiles3 4:2bb5deb83b81 33
gmiles3 4:2bb5deb83b81 34 address = i2cAddress;
gmiles3 4:2bb5deb83b81 35
gmiles3 4:2bb5deb83b81 36 // Configure the MPR121 settings to default
gmiles3 4:2bb5deb83b81 37 this->configureSettings();
gmiles3 4:2bb5deb83b81 38 }
gmiles3 4:2bb5deb83b81 39
gmiles3 4:2bb5deb83b81 40
gmiles3 4:2bb5deb83b81 41 void Mpr121::configureSettings()
gmiles3 4:2bb5deb83b81 42 {
gmiles3 4:2bb5deb83b81 43 // Put the MPR into setup mode
gmiles3 4:2bb5deb83b81 44 this->write(ELE_CFG,0x00);
gmiles3 4:2bb5deb83b81 45
gmiles3 4:2bb5deb83b81 46 // Electrode filters for when data is > baseline
gmiles3 4:2bb5deb83b81 47 unsigned char gtBaseline[] = {
gmiles3 4:2bb5deb83b81 48 0x01, //MHD_R
gmiles3 4:2bb5deb83b81 49 0x01, //NHD_R
gmiles3 4:2bb5deb83b81 50 0x00, //NCL_R
gmiles3 4:2bb5deb83b81 51 0x00 //FDL_R
gmiles3 4:2bb5deb83b81 52 };
gmiles3 4:2bb5deb83b81 53
gmiles3 4:2bb5deb83b81 54 writeMany(MHD_R,gtBaseline,4);
gmiles3 4:2bb5deb83b81 55
gmiles3 4:2bb5deb83b81 56 // Electrode filters for when data is < baseline
gmiles3 4:2bb5deb83b81 57 unsigned char ltBaseline[] = {
gmiles3 4:2bb5deb83b81 58 0x01, //MHD_F
gmiles3 4:2bb5deb83b81 59 0x01, //NHD_F
gmiles3 4:2bb5deb83b81 60 0xFF, //NCL_F
gmiles3 4:2bb5deb83b81 61 0x02 //FDL_F
gmiles3 4:2bb5deb83b81 62 };
gmiles3 4:2bb5deb83b81 63
gmiles3 4:2bb5deb83b81 64 writeMany(MHD_F,ltBaseline,4);
gmiles3 4:2bb5deb83b81 65
gmiles3 4:2bb5deb83b81 66 // Electrode touch and release thresholds
gmiles3 4:2bb5deb83b81 67 unsigned char electrodeThresholds[] = {
gmiles3 4:2bb5deb83b81 68 E_THR_T, // Touch Threshhold
gmiles3 4:2bb5deb83b81 69 E_THR_R // Release Threshold
gmiles3 4:2bb5deb83b81 70 };
gmiles3 4:2bb5deb83b81 71
gmiles3 4:2bb5deb83b81 72 for(int i=0; i<12; i++){
gmiles3 4:2bb5deb83b81 73 int result = writeMany((ELE0_T+(i*2)),electrodeThresholds,2);
gmiles3 4:2bb5deb83b81 74 }
gmiles3 4:2bb5deb83b81 75
gmiles3 4:2bb5deb83b81 76 // Proximity Settings
gmiles3 4:2bb5deb83b81 77 unsigned char proximitySettings[] = {
gmiles3 4:2bb5deb83b81 78 0xff, //MHD_Prox_R
gmiles3 4:2bb5deb83b81 79 0xff, //NHD_Prox_R
gmiles3 4:2bb5deb83b81 80 0x00, //NCL_Prox_R
gmiles3 4:2bb5deb83b81 81 0x00, //FDL_Prox_R
gmiles3 4:2bb5deb83b81 82 0x01, //MHD_Prox_F
gmiles3 4:2bb5deb83b81 83 0x01, //NHD_Prox_F
gmiles3 4:2bb5deb83b81 84 0xFF, //NCL_Prox_F
gmiles3 4:2bb5deb83b81 85 0xff, //FDL_Prox_F
gmiles3 4:2bb5deb83b81 86 0x00, //NHD_Prox_T
gmiles3 4:2bb5deb83b81 87 0x00, //NCL_Prox_T
gmiles3 4:2bb5deb83b81 88 0x00 //NFD_Prox_T
gmiles3 4:2bb5deb83b81 89 };
gmiles3 4:2bb5deb83b81 90 writeMany(MHDPROXR,proximitySettings,11);
gmiles3 4:2bb5deb83b81 91
gmiles3 4:2bb5deb83b81 92 unsigned char proxThresh[] = {
gmiles3 4:2bb5deb83b81 93 PROX_THR_T, // Touch Threshold
gmiles3 4:2bb5deb83b81 94 PROX_THR_R // Release Threshold
gmiles3 4:2bb5deb83b81 95 };
gmiles3 4:2bb5deb83b81 96 writeMany(EPROXTTH,proxThresh,2);
gmiles3 4:2bb5deb83b81 97
gmiles3 4:2bb5deb83b81 98 this->write(FIL_CFG,0x04);
gmiles3 4:2bb5deb83b81 99
gmiles3 4:2bb5deb83b81 100 // Set the electrode config to transition to active mode
gmiles3 4:2bb5deb83b81 101 this->write(ELE_CFG,0x0c);
gmiles3 4:2bb5deb83b81 102 }
gmiles3 4:2bb5deb83b81 103
gmiles3 4:2bb5deb83b81 104 void Mpr121::setElectrodeThreshold(int electrode, unsigned char touch, unsigned char release){
gmiles3 4:2bb5deb83b81 105
gmiles3 4:2bb5deb83b81 106 if(electrode > 11) return;
gmiles3 4:2bb5deb83b81 107
gmiles3 4:2bb5deb83b81 108 // Get the current mode
gmiles3 4:2bb5deb83b81 109 unsigned char mode = this->read(ELE_CFG);
gmiles3 4:2bb5deb83b81 110
gmiles3 4:2bb5deb83b81 111 // Put the MPR into setup mode
gmiles3 4:2bb5deb83b81 112 this->write(ELE_CFG,0x00);
gmiles3 4:2bb5deb83b81 113
gmiles3 4:2bb5deb83b81 114 // Write the new threshold
gmiles3 4:2bb5deb83b81 115 this->write((ELE0_T+(electrode*2)), touch);
gmiles3 4:2bb5deb83b81 116 this->write((ELE0_T+(electrode*2)+1), release);
gmiles3 4:2bb5deb83b81 117
gmiles3 4:2bb5deb83b81 118 //Restore the operating mode
gmiles3 4:2bb5deb83b81 119 this->write(ELE_CFG, mode);
gmiles3 4:2bb5deb83b81 120 }
gmiles3 4:2bb5deb83b81 121
gmiles3 4:2bb5deb83b81 122
gmiles3 4:2bb5deb83b81 123 unsigned char Mpr121::read(int key){
gmiles3 4:2bb5deb83b81 124
gmiles3 4:2bb5deb83b81 125 unsigned char data[2];
gmiles3 4:2bb5deb83b81 126
gmiles3 4:2bb5deb83b81 127 //Start the command
gmiles3 4:2bb5deb83b81 128 i2c->start();
gmiles3 4:2bb5deb83b81 129
gmiles3 4:2bb5deb83b81 130 // Address the target (Write mode)
gmiles3 4:2bb5deb83b81 131 int ack1= i2c->write(address);
gmiles3 4:2bb5deb83b81 132
gmiles3 4:2bb5deb83b81 133 // Set the register key to read
gmiles3 4:2bb5deb83b81 134 int ack2 = i2c->write(key);
gmiles3 4:2bb5deb83b81 135
gmiles3 4:2bb5deb83b81 136 // Re-start for read of data
gmiles3 4:2bb5deb83b81 137 i2c->start();
gmiles3 4:2bb5deb83b81 138
gmiles3 4:2bb5deb83b81 139 // Re-send the target address in read mode
gmiles3 4:2bb5deb83b81 140 int ack3 = i2c->write(address+1);
gmiles3 4:2bb5deb83b81 141
gmiles3 4:2bb5deb83b81 142 // Read in the result
gmiles3 4:2bb5deb83b81 143 data[0] = i2c->read(0);
gmiles3 4:2bb5deb83b81 144
gmiles3 4:2bb5deb83b81 145 // Reset the bus
gmiles3 4:2bb5deb83b81 146 i2c->stop();
gmiles3 4:2bb5deb83b81 147
gmiles3 4:2bb5deb83b81 148 return data[0];
gmiles3 4:2bb5deb83b81 149 }
gmiles3 4:2bb5deb83b81 150
gmiles3 4:2bb5deb83b81 151
gmiles3 4:2bb5deb83b81 152 int Mpr121::write(int key, unsigned char value){
gmiles3 4:2bb5deb83b81 153
gmiles3 4:2bb5deb83b81 154 //Start the command
gmiles3 4:2bb5deb83b81 155 i2c->start();
gmiles3 4:2bb5deb83b81 156
gmiles3 4:2bb5deb83b81 157 // Address the target (Write mode)
gmiles3 4:2bb5deb83b81 158 int ack1= i2c->write(address);
gmiles3 4:2bb5deb83b81 159
gmiles3 4:2bb5deb83b81 160 // Set the register key to write
gmiles3 4:2bb5deb83b81 161 int ack2 = i2c->write(key);
gmiles3 4:2bb5deb83b81 162
gmiles3 4:2bb5deb83b81 163 // Read in the result
gmiles3 4:2bb5deb83b81 164 int ack3 = i2c->write(value);
gmiles3 4:2bb5deb83b81 165
gmiles3 4:2bb5deb83b81 166 // Reset the bus
gmiles3 4:2bb5deb83b81 167 i2c->stop();
gmiles3 4:2bb5deb83b81 168
gmiles3 4:2bb5deb83b81 169 return (ack1+ack2+ack3)-3;
gmiles3 4:2bb5deb83b81 170 }
gmiles3 4:2bb5deb83b81 171
gmiles3 4:2bb5deb83b81 172
gmiles3 4:2bb5deb83b81 173 int Mpr121::writeMany(int start, unsigned char* dataSet, int length){
gmiles3 4:2bb5deb83b81 174 //Start the command
gmiles3 4:2bb5deb83b81 175 i2c->start();
gmiles3 4:2bb5deb83b81 176
gmiles3 4:2bb5deb83b81 177 // Address the target (Write mode)
gmiles3 4:2bb5deb83b81 178 int ack= i2c->write(address);
gmiles3 4:2bb5deb83b81 179 if(ack!=1){
gmiles3 4:2bb5deb83b81 180 return -1;
gmiles3 4:2bb5deb83b81 181 }
gmiles3 4:2bb5deb83b81 182
gmiles3 4:2bb5deb83b81 183 // Set the register key to write
gmiles3 4:2bb5deb83b81 184 ack = i2c->write(start);
gmiles3 4:2bb5deb83b81 185 if(ack!=1){
gmiles3 4:2bb5deb83b81 186 return -1;
gmiles3 4:2bb5deb83b81 187 }
gmiles3 4:2bb5deb83b81 188
gmiles3 4:2bb5deb83b81 189 // Write the date set
gmiles3 4:2bb5deb83b81 190 int count = 0;
gmiles3 4:2bb5deb83b81 191 while(ack==1 && (count < length)){
gmiles3 4:2bb5deb83b81 192 ack = i2c->write(dataSet[count]);
gmiles3 4:2bb5deb83b81 193 count++;
gmiles3 4:2bb5deb83b81 194 }
gmiles3 4:2bb5deb83b81 195 // Stop the cmd
gmiles3 4:2bb5deb83b81 196 i2c->stop();
gmiles3 4:2bb5deb83b81 197
gmiles3 4:2bb5deb83b81 198 return count;
gmiles3 4:2bb5deb83b81 199 }
gmiles3 4:2bb5deb83b81 200
gmiles3 4:2bb5deb83b81 201
gmiles3 4:2bb5deb83b81 202 bool Mpr121::getProximityMode(){
gmiles3 4:2bb5deb83b81 203 if(this->read(ELE_CFG) > 0x0c)
gmiles3 4:2bb5deb83b81 204 return true;
gmiles3 4:2bb5deb83b81 205 else
gmiles3 4:2bb5deb83b81 206 return false;
gmiles3 4:2bb5deb83b81 207 }
gmiles3 4:2bb5deb83b81 208
gmiles3 4:2bb5deb83b81 209 void Mpr121::setProximityMode(bool mode){
gmiles3 4:2bb5deb83b81 210 this->write(ELE_CFG,0x00);
gmiles3 4:2bb5deb83b81 211 if(mode){
gmiles3 4:2bb5deb83b81 212 this->write(ELE_CFG,0x30); //Sense proximity from ALL pads
gmiles3 4:2bb5deb83b81 213 } else {
gmiles3 4:2bb5deb83b81 214 this->write(ELE_CFG,0x0c); //Sense touch, all 12 pads active.
gmiles3 4:2bb5deb83b81 215 }
gmiles3 4:2bb5deb83b81 216 }
gmiles3 4:2bb5deb83b81 217
gmiles3 4:2bb5deb83b81 218
gmiles3 4:2bb5deb83b81 219 int Mpr121::readTouchData(){
gmiles3 4:2bb5deb83b81 220 return this->read(0x00);
gmiles3 4:2bb5deb83b81 221 }