Ion Systems / Mbed 2 deprecated Chipin_Main

The MBED firmware used on the Chipin sorter, developed over 12 weeks for a 3rd year university systems project. Chipin is a token sorter, it sorts tokens by colours and dispenses them to order through an online booking system and card reader. This program interfaces with an FPGA, PC and LCD screen to control the sorter. The sorter has an operation mode where it can process orders when a card is entered into the machine. There is also a maintenance mode where the device responds to maintenance instructions such as 'dispense all'. More information at http://www.ionsystems.uk/

Dependencies:   MCP23017 TCS3472_I2C WattBob_TextLCD mbed-rtos mbed

serialCommunication.h@21:3d9556f5508a, 2014-11-25 (annotated)

Committer:
IonSystems
Date:
Tue Nov 25 13:48:23 2014 +0000
Revision:
21:3d9556f5508a
Parent:
20:6de191ac7ff3
Child:
22:8f11d1c178ab
Started writing card reader data comms over serial to PC.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
IonSystems 10:8c0696b99692 1 #include "cardReader.h"
IonSystems 10:8c0696b99692 2
IonSystems 10:8c0696b99692 3
IonSystems 10:8c0696b99692 4
IonSystems 10:8c0696b99692 5 Serial pc(USBTX, USBRX);
IonSystems 10:8c0696b99692 6 /* valueToChar(int value):
IonSystems 10:8c0696b99692 7 Expects an int value what it 0 or 1.
IonSystems 10:8c0696b99692 8 Returns the int value as a char.
IonSystems 10:8c0696b99692 9 0 will return '0'
IonSystems 10:8c0696b99692 10 1 will return '1'
IonSystems 10:8c0696b99692 11 Used to read the bits in the card reader.
IonSystems 10:8c0696b99692 12 */
IonSystems 10:8c0696b99692 13 char valueToChar(int value){
IonSystems 10:8c0696b99692 14 if(value == 0){
IonSystems 10:8c0696b99692 15 return '0';
IonSystems 10:8c0696b99692 16 }else if(value == 1){
IonSystems 10:8c0696b99692 17 return '1';
IonSystems 10:8c0696b99692 18 }else{
IonSystems 10:8c0696b99692 19 return NULL;
IonSystems 10:8c0696b99692 20 }
IonSystems 10:8c0696b99692 21 }
IonSystems 10:8c0696b99692 22
IonSystems 10:8c0696b99692 23 void sendCharacter(char ch){
IonSystems 10:8c0696b99692 24 pc.putc(ch);
IonSystems 10:8c0696b99692 25 }
IonSystems 21:3d9556f5508a 26 void sendCardValues(){
IonSystems 21:3d9556f5508a 27 pc.putc('R');//start bit
IonSystems 21:3d9556f5508a 28 //data
IonSystems 21:3d9556f5508a 29 pc.putc('C');//stop bit
IonSystems 21:3d9556f5508a 30 }
IonSystems 10:8c0696b99692 31
IonSystems 10:8c0696b99692 32 void sendString(char* ch){
IonSystems 10:8c0696b99692 33 pc.puts(ch);
IonSystems 10:8c0696b99692 34 }
IonSystems 10:8c0696b99692 35
IonSystems 10:8c0696b99692 36
IonSystems 6:e64796f1f384 37 char readBit(int bitNumber){
IonSystems 6:e64796f1f384 38 int value = 0;
IonSystems 6:e64796f1f384 39 switch(bitNumber){
IonSystems 6:e64796f1f384 40 case 1:
IonSystems 6:e64796f1f384 41 value = cardBit1;
IonSystems 6:e64796f1f384 42 break;
IonSystems 6:e64796f1f384 43 case 2:
IonSystems 6:e64796f1f384 44 value = cardBit2;
IonSystems 6:e64796f1f384 45 break;
IonSystems 6:e64796f1f384 46 case 3:
IonSystems 6:e64796f1f384 47 value = cardBit3;
IonSystems 6:e64796f1f384 48 break;
IonSystems 6:e64796f1f384 49 case 4:
IonSystems 6:e64796f1f384 50 value = cardBit4;
IonSystems 6:e64796f1f384 51 break;
IonSystems 6:e64796f1f384 52 case 5:
IonSystems 6:e64796f1f384 53 value = cardBit5;
IonSystems 6:e64796f1f384 54 break;
IonSystems 6:e64796f1f384 55 case 6:
IonSystems 6:e64796f1f384 56 value = cardBit6;
IonSystems 6:e64796f1f384 57 break;
IonSystems 6:e64796f1f384 58 }
IonSystems 6:e64796f1f384 59 return valueToChar(value);
IonSystems 10:8c0696b99692 60 }
IonSystems 6:e64796f1f384 61
IonSystems 10:8c0696b99692 62 void processMessage(char c){
IonSystems 6:e64796f1f384 63 switch(c){
IonSystems 10:8c0696b99692 64 case 'a' : //Dispense red
IonSystems 20:6de191ac7ff3 65 {
IonSystems 10:8c0696b99692 66 dispense(RED);
IonSystems 10:8c0696b99692 67 sendCharacter('A');
IonSystems 6:e64796f1f384 68 break;
IonSystems 20:6de191ac7ff3 69 }
IonSystems 20:6de191ac7ff3 70 {
IonSystems 10:8c0696b99692 71 case 'b' : //dispense green
IonSystems 10:8c0696b99692 72 dispense(GREEN);
IonSystems 10:8c0696b99692 73 sendCharacter('B');
IonSystems 6:e64796f1f384 74 break;
IonSystems 20:6de191ac7ff3 75 }
IonSystems 20:6de191ac7ff3 76 {
IonSystems 10:8c0696b99692 77 case 'c': //dispense blue
IonSystems 10:8c0696b99692 78 dispense(BLUE);
IonSystems 10:8c0696b99692 79 sendCharacter('C');
IonSystems 6:e64796f1f384 80 break;
IonSystems 20:6de191ac7ff3 81 }
IonSystems 20:6de191ac7ff3 82 {
IonSystems 6:e64796f1f384 83 case 'C':// Read card command
IonSystems 6:e64796f1f384 84 sendCharacter('R'); //Notify PC that command has been recieved
IonSystems 6:e64796f1f384 85 printLCD("Reading Card");
IonSystems 6:e64796f1f384 86 //read card here
IonSystems 6:e64796f1f384 87 char value = ' ';
IonSystems 6:e64796f1f384 88 for(int num = 1;num <= 6;num++){
IonSystems 6:e64796f1f384 89 value = readBit(num);
IonSystems 6:e64796f1f384 90 // sendCharacter('R');
IonSystems 6:e64796f1f384 91 sendCharacter(value);
IonSystems 6:e64796f1f384 92 printLCD("Bit read");
IonSystems 6:e64796f1f384 93 //wait(0.1);
IonSystems 6:e64796f1f384 94 }
IonSystems 6:e64796f1f384 95 sendCharacter('C'); //Tells PC that the card has been read
IonSystems 6:e64796f1f384 96 printLCD("Card read done");
IonSystems 6:e64796f1f384 97 break;
IonSystems 20:6de191ac7ff3 98 }
IonSystems 20:6de191ac7ff3 99 {
IonSystems 6:e64796f1f384 100 case 'X':
IonSystems 6:e64796f1f384 101 sendCharacter('X'); //Notify the PC that this is an MBED
IonSystems 6:e64796f1f384 102 printLCD("Connected to PC");
IonSystems 6:e64796f1f384 103 break;
IonSystems 20:6de191ac7ff3 104 }
IonSystems 20:6de191ac7ff3 105 {
IonSystems 6:e64796f1f384 106 case 'd': //Dispense a chip
IonSystems 6:e64796f1f384 107 sendCharacter('D');
IonSystems 6:e64796f1f384 108 printLCD("Dispensing chip");
IonSystems 6:e64796f1f384 109
IonSystems 6:e64796f1f384 110 //read from color sensor
IonSystems 6:e64796f1f384 111 //convert readings to colour
IonSystems 6:e64796f1f384 112 //convert colour to 3-bit colour code
IonSystems 6:e64796f1f384 113 //set the FPGA colour inputs to the colour code
IonSystems 6:e64796f1f384 114 startSort = true;
IonSystems 6:e64796f1f384 115 break;
IonSystems 20:6de191ac7ff3 116 }
IonSystems 20:6de191ac7ff3 117 {
IonSystems 10:8c0696b99692 118
IonSystems 12:814a8fdbb6f7 119 case 'o': //testServoredBlueLeft
IonSystems 12:814a8fdbb6f7 120 maintain(RB_LEFT);
IonSystems 12:814a8fdbb6f7 121 sendCharacter('O');
IonSystems 10:8c0696b99692 122 break;
IonSystems 20:6de191ac7ff3 123 }
IonSystems 20:6de191ac7ff3 124 {
IonSystems 10:8c0696b99692 125
IonSystems 10:8c0696b99692 126 case 'p':
IonSystems 12:814a8fdbb6f7 127 maintain(RB_CENTRE);
IonSystems 12:814a8fdbb6f7 128 sendCharacter('P');
IonSystems 10:8c0696b99692 129 break;
IonSystems 20:6de191ac7ff3 130 }
IonSystems 20:6de191ac7ff3 131 {
IonSystems 10:8c0696b99692 132
IonSystems 10:8c0696b99692 133 case 'q':
IonSystems 12:814a8fdbb6f7 134 maintain(RB_RIGHT);
IonSystems 12:814a8fdbb6f7 135 sendCharacter('O');
IonSystems 10:8c0696b99692 136 break;
IonSystems 20:6de191ac7ff3 137 }
IonSystems 20:6de191ac7ff3 138 {
IonSystems 10:8c0696b99692 139 case 's':
IonSystems 12:814a8fdbb6f7 140 maintain(GO_UP);
IonSystems 12:814a8fdbb6f7 141 sendCharacter('S');
IonSystems 10:8c0696b99692 142 break;
IonSystems 20:6de191ac7ff3 143 }
IonSystems 20:6de191ac7ff3 144 {
IonSystems 10:8c0696b99692 145 case 't':
IonSystems 12:814a8fdbb6f7 146 maintain(GO_CENTRE);
IonSystems 12:814a8fdbb6f7 147 sendCharacter('T');
IonSystems 10:8c0696b99692 148 break;
IonSystems 20:6de191ac7ff3 149 }
IonSystems 20:6de191ac7ff3 150 {
IonSystems 10:8c0696b99692 151 case 'u':
IonSystems 12:814a8fdbb6f7 152 maintain(GO_DOWN);
IonSystems 12:814a8fdbb6f7 153 sendCharacter('U');
IonSystems 10:8c0696b99692 154 break;
IonSystems 20:6de191ac7ff3 155 }
IonSystems 10:8c0696b99692 156
IonSystems 20:6de191ac7ff3 157 {
IonSystems 10:8c0696b99692 158 case 'v':
IonSystems 12:814a8fdbb6f7 159 maintain(BR_LEFT);
IonSystems 12:814a8fdbb6f7 160 sendCharacter('V');
IonSystems 10:8c0696b99692 161 break;
IonSystems 20:6de191ac7ff3 162 }
IonSystems 20:6de191ac7ff3 163 {
IonSystems 10:8c0696b99692 164 case 'w':
IonSystems 12:814a8fdbb6f7 165 maintain(BR_LEFT);
IonSystems 12:814a8fdbb6f7 166 sendCharacter('O');
IonSystems 10:8c0696b99692 167 break;
IonSystems 20:6de191ac7ff3 168 }
IonSystems 20:6de191ac7ff3 169 {
IonSystems 10:8c0696b99692 170 case 'j':
IonSystems 10:8c0696b99692 171 sort(RED);
IonSystems 10:8c0696b99692 172 sendCharacter('J');
IonSystems 10:8c0696b99692 173 break;
IonSystems 20:6de191ac7ff3 174 }
IonSystems 20:6de191ac7ff3 175 {
IonSystems 10:8c0696b99692 176 case 'k':
IonSystems 10:8c0696b99692 177 sort(GREEN);
IonSystems 10:8c0696b99692 178 sendCharacter('K');
IonSystems 10:8c0696b99692 179 break;
IonSystems 20:6de191ac7ff3 180 }
IonSystems 20:6de191ac7ff3 181 {
IonSystems 10:8c0696b99692 182 case 'l':
IonSystems 10:8c0696b99692 183 sort(BLUE);
IonSystems 10:8c0696b99692 184 sendCharacter('L');
IonSystems 10:8c0696b99692 185 break;
IonSystems 20:6de191ac7ff3 186 }
IonSystems 20:6de191ac7ff3 187 {
IonSystems 10:8c0696b99692 188
IonSystems 18:12e2c82a5a6c 189 case '0': //Dispense all
IonSystems 12:814a8fdbb6f7 190 dispenseAll();
IonSystems 18:12e2c82a5a6c 191 sendCharacter('1');
IonSystems 12:814a8fdbb6f7 192 break;
IonSystems 20:6de191ac7ff3 193 }
IonSystems 20:6de191ac7ff3 194 {
IonSystems 19:78d4b78fa736 195 case '2':
IonSystems 19:78d4b78fa736 196 maintain(GO_CENTRE);
IonSystems 19:78d4b78fa736 197 maintain(RB_CENTRE);
IonSystems 19:78d4b78fa736 198 sendCharacter('3');
IonSystems 19:78d4b78fa736 199 break;
IonSystems 20:6de191ac7ff3 200 }
IonSystems 20:6de191ac7ff3 201 {
IonSystems 20:6de191ac7ff3 202 case '4':
IonSystems 20:6de191ac7ff3 203 lift();
IonSystems 20:6de191ac7ff3 204 sendCharacter('5');
IonSystems 20:6de191ac7ff3 205 break;
IonSystems 20:6de191ac7ff3 206 }
IonSystems 20:6de191ac7ff3 207
IonSystems 10:8c0696b99692 208
IonSystems 10:8c0696b99692 209
IonSystems 10:8c0696b99692 210
IonSystems 10:8c0696b99692 211
IonSystems 10:8c0696b99692 212
IonSystems 10:8c0696b99692 213
IonSystems 10:8c0696b99692 214
IonSystems 10:8c0696b99692 215
IonSystems 10:8c0696b99692 216
IonSystems 10:8c0696b99692 217
IonSystems 10:8c0696b99692 218
IonSystems 10:8c0696b99692 219 /*case 't'://Test 180 servo
IonSystems 6:e64796f1f384 220 sendCharacter('T');
IonSystems 6:e64796f1f384 221 printLCD("Servo signal on");
IonSystems 6:e64796f1f384 222 servoTest = true;
IonSystems 6:e64796f1f384 223 break;
IonSystems 6:e64796f1f384 224 case 'w'://Test 180 servo
IonSystems 6:e64796f1f384 225 sendCharacter('W');
IonSystems 6:e64796f1f384 226 printLCD("Servo signal off");
IonSystems 6:e64796f1f384 227 servoTest = false;
IonSystems 10:8c0696b99692 228 break;*/
IonSystems 10:8c0696b99692 229 }
IonSystems 10:8c0696b99692 230 }
IonSystems 6:e64796f1f384 231
IonSystems 10:8c0696b99692 232 /*else if (operationMode){
IonSystems 6:e64796f1f384 233 switch(c){
IonSystems 6:e64796f1f384 234 case 'n':// Start sorting
IonSystems 6:e64796f1f384 235 sendCharacter('N'); //Confirm to PC that we are processing the instruction.
IonSystems 6:e64796f1f384 236 startSort = true; //Pulse the startSort control line to FPGA
IonSystems 6:e64796f1f384 237 wait(0.1);
IonSystems 6:e64796f1f384 238 startSort = false;
IonSystems 6:e64796f1f384 239 break;
IonSystems 6:e64796f1f384 240 case 'o': //Start dispensing
IonSystems 6:e64796f1f384 241 sendCharacter('O');
IonSystems 6:e64796f1f384 242 startDispense = true; //Pulse the startDispense control line to FPGA
IonSystems 6:e64796f1f384 243 wait(0.1);
IonSystems 6:e64796f1f384 244 startDispense = false;
IonSystems 6:e64796f1f384 245 break;
IonSystems 6:e64796f1f384 246 case 'p': //
IonSystems 6:e64796f1f384 247 sendCharacter('P');
IonSystems 6:e64796f1f384 248 break;
IonSystems 6:e64796f1f384 249 }
IonSystems 6:e64796f1f384 250 }
IonSystems 10:8c0696b99692 251 }*/
IonSystems 10:8c0696b99692 252 bool checkSerial(){
IonSystems 10:8c0696b99692 253 log("Checking serial");
IonSystems 10:8c0696b99692 254 printLCD("");
IonSystems 10:8c0696b99692 255 if(pc.readable()){
IonSystems 10:8c0696b99692 256 log("serial port is readable, reading char and processing");
IonSystems 10:8c0696b99692 257 char c = pc.getc();
IonSystems 10:8c0696b99692 258 processMessage(c);
IonSystems 10:8c0696b99692 259 return true;
IonSystems 10:8c0696b99692 260 }else{
IonSystems 10:8c0696b99692 261 log("serial port not readable, doing nothing");
IonSystems 10:8c0696b99692 262 return false;
IonSystems 10:8c0696b99692 263 }
IonSystems 6:e64796f1f384 264 }
IonSystems 10:8c0696b99692 265 bool readCharacter(){
IonSystems 10:8c0696b99692 266 char c = pc.getc(); //wait for a serial character to be recieved.
IonSystems 10:8c0696b99692 267 processMessage(c); //Do something, based on the character recieved.
IonSystems 10:8c0696b99692 268 return true;
IonSystems 6:e64796f1f384 269 }
IonSystems 15:0c5f20e15b6a 270 /* Set the PC's laguage to whatever our language is
IonSystems 15:0c5f20e15b6a 271 */
IonSystems 15:0c5f20e15b6a 272 void sendLanguageCharacter(){
IonSystems 15:0c5f20e15b6a 273 switch(currentLanguage){
IonSystems 15:0c5f20e15b6a 274 case ENGLISH:
IonSystems 15:0c5f20e15b6a 275 printLCD("Setting language to English");
IonSystems 15:0c5f20e15b6a 276 sendCharacter('Y');
IonSystems 15:0c5f20e15b6a 277 printLCD("Language set to English");
IonSystems 15:0c5f20e15b6a 278 break;
IonSystems 15:0c5f20e15b6a 279
IonSystems 15:0c5f20e15b6a 280 case FRENCH:
IonSystems 15:0c5f20e15b6a 281 printLCD("Setting language to French");
IonSystems 15:0c5f20e15b6a 282 sendCharacter('Z');
IonSystems 15:0c5f20e15b6a 283 printLCD("Language set to French");
IonSystems 15:0c5f20e15b6a 284 break;
IonSystems 15:0c5f20e15b6a 285
IonSystems 15:0c5f20e15b6a 286 case GERMAN:
IonSystems 15:0c5f20e15b6a 287 printLCD("Setting language to German");
IonSystems 15:0c5f20e15b6a 288 sendCharacter('!');
IonSystems 15:0c5f20e15b6a 289 printLCD("Language set to German");
IonSystems 15:0c5f20e15b6a 290 break;
IonSystems 15:0c5f20e15b6a 291 }
IonSystems 15:0c5f20e15b6a 292 }
IonSystems 6:e64796f1f384 293
IonSystems 10:8c0696b99692 294