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Dependencies:   Menu PID_v2 PinDetect QEI TextLCD Thermistor mbed

main.cpp@3:884bfa90a09d, 2016-01-11 (annotated)

Committer:
albertobianco
Date:
Mon Jan 11 08:15:22 2016 +0000
Revision:
3:884bfa90a09d
Parent:
1:219e882c32eb
Child:
4:800e1df45650
Fixed bug: pit target temperature was not set;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
walter76 0:b6fd8ca8bfbf 1 #include "mbed.h"
walter76 0:b6fd8ca8bfbf 2 #include "TextLCD.h"
walter76 0:b6fd8ca8bfbf 3 #include "PID.h"
walter76 0:b6fd8ca8bfbf 4 #include "QEI.h"
albertobianco 1:219e882c32eb 5 #include "Menu.h"
albertobianco 1:219e882c32eb 6 #include "PinDetect.h"
albertobianco 1:219e882c32eb 7 #include "Thermistor.h"
walter76 0:b6fd8ca8bfbf 8
albertobianco 1:219e882c32eb 9 #define TPIT_MIN 0.0
albertobianco 1:219e882c32eb 10 #define TPIT_MAX 250.0
albertobianco 1:219e882c32eb 11 #define TCOAL_MIN 0.0
albertobianco 1:219e882c32eb 12 #define TCOAL_MAX 1000.0
walter76 0:b6fd8ca8bfbf 13 #define TMEAT_MIN 50
walter76 0:b6fd8ca8bfbf 14 #define TMEAT_MAX 120
walter76 0:b6fd8ca8bfbf 15 #define MAX_HOURS 24
albertobianco 1:219e882c32eb 16
albertobianco 1:219e882c32eb 17 #define PULLUP_MEAT 10000.0
albertobianco 1:219e882c32eb 18
walter76 0:b6fd8ca8bfbf 19 /*
walter76 0:b6fd8ca8bfbf 20
walter76 0:b6fd8ca8bfbf 21 This FW implements a PID temperature controller specifically designed for Ugly Drum Smokers (UDS)
walter76 0:b6fd8ca8bfbf 22 and uses a K-type termocouple as pit temperature sensors and a PWM-controlled fan to regulate the
walter76 0:b6fd8ca8bfbf 23 airflow at the intake.
walter76 0:b6fd8ca8bfbf 24 A second K-type termocouple is used to monitor the meat temperature, while a countdown timer takes care
walter76 0:b6fd8ca8bfbf 25 of the cooking time.
walter76 0:b6fd8ca8bfbf 26 The required HW consists of:
walter76 0:b6fd8ca8bfbf 27 - 1x STM32 F411RE Nucleo board
walter76 0:b6fd8ca8bfbf 28 - 1x 20x4 Text LCD
walter76 0:b6fd8ca8bfbf 29 - 1x Quadrature rotary encoder
walter76 0:b6fd8ca8bfbf 30 - 1x Pushbutton (if not embedded in the encoder)
walter76 0:b6fd8ca8bfbf 31 - 2x MAX6675 modules
walter76 0:b6fd8ca8bfbf 32 - 2x K-type termocouples (pit & meat)
walter76 0:b6fd8ca8bfbf 33 - 1x Buzzer
walter76 0:b6fd8ca8bfbf 34 - 1x 12V fan
walter76 0:b6fd8ca8bfbf 35 - 1x N-MOS capable of driving the fan
walter76 0:b6fd8ca8bfbf 36 - 1x fly-wheeling diode
walter76 0:b6fd8ca8bfbf 37
walter76 0:b6fd8ca8bfbf 38 */
walter76 0:b6fd8ca8bfbf 39
albertobianco 1:219e882c32eb 40 int Hrs=0, Min=0, Sec=0, warning=0, timeout=0;
albertobianco 1:219e882c32eb 41 int TimerRunning = 0;
albertobianco 1:219e882c32eb 42 float FanSpeed, TcoalPID, Tcoal, Tpit, Tmeat, Tset;
albertobianco 1:219e882c32eb 43 float Talm = 200.0;
albertobianco 1:219e882c32eb 44 float TcoalSet, DfanSet;
walter76 0:b6fd8ca8bfbf 45 float Vpot;
albertobianco 1:219e882c32eb 46 uint8_t req_LCD_update;
albertobianco 1:219e882c32eb 47
albertobianco 1:219e882c32eb 48 uint8_t displayLine;
albertobianco 1:219e882c32eb 49
albertobianco 1:219e882c32eb 50 int pitPidMode = 0;
albertobianco 1:219e882c32eb 51 int coalPidMode = 0;
albertobianco 1:219e882c32eb 52
albertobianco 1:219e882c32eb 53 char stringa[20];
albertobianco 1:219e882c32eb 54
albertobianco 1:219e882c32eb 55 void UpdatePidMode(void);
albertobianco 1:219e882c32eb 56 void SetCoalTemp(void);
albertobianco 1:219e882c32eb 57 void SetFanDuty(void);
albertobianco 1:219e882c32eb 58 void SetPIDK(void);
albertobianco 1:219e882c32eb 59 void ResetSeconds(void);
albertobianco 3:884bfa90a09d 60 void SetPitTemp(void);
albertobianco 1:219e882c32eb 61
albertobianco 1:219e882c32eb 62 float coalKc = 0.1, coalTauI = 6.0;
albertobianco 1:219e882c32eb 63 float pitKc = 0.1, pitTauI = 60.0;
albertobianco 1:219e882c32eb 64
albertobianco 1:219e882c32eb 65 MenuNode MNhead(NULL,"Exit");
albertobianco 1:219e882c32eb 66 MenuNode MNpid(&MNhead,"PID settings");
albertobianco 1:219e882c32eb 67 //MenuNode MNpitap(&MNpid,"Pit Auto PID");
albertobianco 3:884bfa90a09d 68 MenuNode MNpitPidTarget(&MNhead,"Pit Target temp",(void *) &Tset,'f',&SetPitTemp,1.0,TPIT_MIN,TPIT_MAX);
walter76 0:b6fd8ca8bfbf 69
albertobianco 1:219e882c32eb 70 MenuNode MNpitPidMode(&MNpid,"Pit PID mode",(void *) &pitPidMode,'i',&UpdatePidMode,1.0,0.0,1.0,(char *[]){"Manual","Auto"});
albertobianco 1:219e882c32eb 71 MenuNode MNcoalPidMode(&MNpid,"Coal PID mode",(void *) &coalPidMode,'i',&UpdatePidMode,1.0,0.0,1.0,(char *[]){"Manual","Auto"});
albertobianco 1:219e882c32eb 72
albertobianco 1:219e882c32eb 73 MenuNode MNpitPidOutput(&MNpid,"Coal Temp (man)",(void *) &TcoalSet,'f',&SetCoalTemp,5.0,TCOAL_MIN,TCOAL_MAX);
albertobianco 1:219e882c32eb 74 MenuNode MNcoalPidOutput(&MNpid,"Fan Speed (man)",(void *) &DfanSet,'f',&SetFanDuty,0.05,0.0,1.0);
albertobianco 1:219e882c32eb 75 MenuNode MNcoalKc(&MNpid,"Coal Kc",(void *) &coalKc,'e',&SetPIDK,1.25,0.0001,100.0);
albertobianco 1:219e882c32eb 76 MenuNode MNcoalTauI(&MNpid,"Coal TauI",(void *) &coalTauI,'e',&SetPIDK,1.25,1.0,1000.0);
albertobianco 1:219e882c32eb 77 MenuNode MNpitKc(&MNpid,"Pit Kc",(void *) &pitKc,'e',&SetPIDK,1.25,0.0001,100.0);
albertobianco 1:219e882c32eb 78 MenuNode MNpitTauI(&MNpid,"Pit TauI",(void *) &pitTauI,'e',&SetPIDK,1.25,1.0,10000.0);
albertobianco 1:219e882c32eb 79
albertobianco 1:219e882c32eb 80 MenuNode MNtmr(&MNhead,"Timer settings");
albertobianco 1:219e882c32eb 81 MenuNode MNtmrRun(&MNtmr,"Timer mode",(void *) &TimerRunning,'i',NULL,1.0,0.0,2.0,(char *[]){"Stop","Countdown", "Timer"});
albertobianco 1:219e882c32eb 82 MenuNode MNtmrHrs(&MNtmr,"Hours",(void *) &Hrs,'i',&ResetSeconds,1.0,0.0,24.0);
albertobianco 1:219e882c32eb 83 MenuNode MNtmrMin(&MNtmr,"Minutes",(void *) &Min,'i',&ResetSeconds,5.0,0.0,55.0);
walter76 0:b6fd8ca8bfbf 84
albertobianco 1:219e882c32eb 85 MenuNode MNtalm(&MNhead,"Meat Target temperature", &Talm,'f', NULL, 1.0, 30.0, 150.0);
albertobianco 1:219e882c32eb 86
albertobianco 1:219e882c32eb 87 Menu MN(&MNhead);
albertobianco 1:219e882c32eb 88
albertobianco 1:219e882c32eb 89 Thermistor MeatThermistor(25.0, 100000.0, 3950.0);
albertobianco 1:219e882c32eb 90
walter76 0:b6fd8ca8bfbf 91
albertobianco 1:219e882c32eb 92 //DigitalOut RLED (PC_5); // Pin 2 of CN10 (MORPHO connector, debug only)
albertobianco 1:219e882c32eb 93 //DigitalOut YLED (PC_6); // Pin 4 of CN10 (MORPHO connector, debug only)
albertobianco 1:219e882c32eb 94 //DigitalOut GLED (PC_8); // Pin 6 of CN10 (MORPHO connector, debug only)
albertobianco 1:219e882c32eb 95
albertobianco 1:219e882c32eb 96 PwmOut FAN (D5); // D3=PB3 --> PMW output (FAN control)
albertobianco 1:219e882c32eb 97
albertobianco 1:219e882c32eb 98 DigitalOut TC_CLK (D4); // D4=PB5 --> MAX6675 CLK (to both chips)
albertobianco 1:219e882c32eb 99
walter76 0:b6fd8ca8bfbf 100 DigitalOut TC_CS1 (A5); // A0=PC0 --> MAX6675 CS (chip 1)
walter76 0:b6fd8ca8bfbf 101 DigitalOut TC_CS2 (D2); // D2=PA10 --> MAX6675 CS (chip 2)
albertobianco 1:219e882c32eb 102 DigitalIn TC_SDO (D8); // D8=PA9 <-- MAX6675 SDO (from both chips)
walter76 0:b6fd8ca8bfbf 103
albertobianco 1:219e882c32eb 104 //DigitalOut BUZZER (A2); // A2=PA4 --> self-oscillating buzzer
walter76 0:b6fd8ca8bfbf 105 PwmOut ALM (D9);
albertobianco 1:219e882c32eb 106
albertobianco 1:219e882c32eb 107 PinDetect Button (D7); // D7=PA8 <-- Hold/Set pushbutton
albertobianco 1:219e882c32eb 108
albertobianco 1:219e882c32eb 109 AnalogIn MeatIn (A0);
walter76 0:b6fd8ca8bfbf 110
albertobianco 1:219e882c32eb 111 PID pitPID(0.1, 60.0, 0.0, 1.0); // Specify Kc, Ti, Td & refresh rate
albertobianco 1:219e882c32eb 112 PID coalPID(0.1, 6.0, 0.0, 1.0); // Specify Kc, Ti, Td & refresh rate
albertobianco 1:219e882c32eb 113 QEI Wheel(D3, D6, NC, 16, QEI::X4_ENCODING); // quadrature encoder
albertobianco 1:219e882c32eb 114 TextLCD MyLCD(D15, D14, D13, D12, D11, D10, TextLCD::LCD16x2); //20x4 LCD connection
walter76 0:b6fd8ca8bfbf 115
walter76 0:b6fd8ca8bfbf 116 Ticker Sec_Beat; // timer ticker
albertobianco 1:219e882c32eb 117 //Ticker decSecBeat; // 1/10th sec beat
walter76 0:b6fd8ca8bfbf 118
walter76 0:b6fd8ca8bfbf 119
walter76 0:b6fd8ca8bfbf 120 // ------------------- Prototypes -----------------------
walter76 0:b6fd8ca8bfbf 121
walter76 0:b6fd8ca8bfbf 122 void Button_Pressed(void);
walter76 0:b6fd8ca8bfbf 123 void Timer_tick(void);
walter76 0:b6fd8ca8bfbf 124 void Update_LCD(void);
walter76 0:b6fd8ca8bfbf 125 int MAX6675_GetTemp(int);
walter76 0:b6fd8ca8bfbf 126
albertobianco 1:219e882c32eb 127 void ResetSeconds(void)
albertobianco 1:219e882c32eb 128 {
albertobianco 1:219e882c32eb 129 Sec = 0;
albertobianco 1:219e882c32eb 130 }
walter76 0:b6fd8ca8bfbf 131
walter76 0:b6fd8ca8bfbf 132 // -------------------- Routines ------------------------
albertobianco 1:219e882c32eb 133 void SetPIDK(void)
albertobianco 1:219e882c32eb 134 {
albertobianco 1:219e882c32eb 135 pitPID.setTunings(pitKc, pitTauI, 0.0);
albertobianco 1:219e882c32eb 136 coalPID.setTunings(coalKc, coalTauI, 0.0);
albertobianco 1:219e882c32eb 137 }
walter76 0:b6fd8ca8bfbf 138
albertobianco 1:219e882c32eb 139 void SetCoalTemp(void)
albertobianco 1:219e882c32eb 140 {
albertobianco 1:219e882c32eb 141 if(!pitPID.isAuto())
albertobianco 1:219e882c32eb 142 pitPID.setOutput(TcoalSet);
albertobianco 1:219e882c32eb 143 }
albertobianco 1:219e882c32eb 144
albertobianco 3:884bfa90a09d 145 void SetPitTemp(void)
albertobianco 3:884bfa90a09d 146 {
albertobianco 3:884bfa90a09d 147 pitPID.setSetPoint( Tset );
albertobianco 3:884bfa90a09d 148 }
albertobianco 3:884bfa90a09d 149
albertobianco 1:219e882c32eb 150 void SetFanDuty(void)
albertobianco 1:219e882c32eb 151 {
albertobianco 1:219e882c32eb 152 if(!coalPID.isAuto())
albertobianco 1:219e882c32eb 153 coalPID.setOutput(DfanSet);
walter76 0:b6fd8ca8bfbf 154 }
walter76 0:b6fd8ca8bfbf 155
walter76 0:b6fd8ca8bfbf 156
walter76 0:b6fd8ca8bfbf 157
albertobianco 1:219e882c32eb 158 void Button_Pressed()
walter76 0:b6fd8ca8bfbf 159 {
albertobianco 1:219e882c32eb 160
albertobianco 1:219e882c32eb 161 if(!MN.isLeaf())
albertobianco 1:219e882c32eb 162 MN.descend();
albertobianco 1:219e882c32eb 163 else
albertobianco 1:219e882c32eb 164 {
albertobianco 1:219e882c32eb 165 if(MN.isSelect())
albertobianco 1:219e882c32eb 166 MN.setEdit();
albertobianco 1:219e882c32eb 167 else if(MN.isEdit())
albertobianco 1:219e882c32eb 168 {
albertobianco 1:219e882c32eb 169 MN.resetEdit();
albertobianco 1:219e882c32eb 170 MN.execFun();
albertobianco 1:219e882c32eb 171 }
walter76 0:b6fd8ca8bfbf 172 }
albertobianco 1:219e882c32eb 173
albertobianco 1:219e882c32eb 174 req_LCD_update = 1;
albertobianco 1:219e882c32eb 175 Wheel.reset();
walter76 0:b6fd8ca8bfbf 176
albertobianco 1:219e882c32eb 177 }
albertobianco 1:219e882c32eb 178
albertobianco 1:219e882c32eb 179
albertobianco 1:219e882c32eb 180 void UpdatePidMode(void)
albertobianco 1:219e882c32eb 181 {
albertobianco 1:219e882c32eb 182 coalPID.setMode(coalPidMode);
albertobianco 1:219e882c32eb 183 pitPID.setMode(pitPidMode);
walter76 0:b6fd8ca8bfbf 184 }
walter76 0:b6fd8ca8bfbf 185
walter76 0:b6fd8ca8bfbf 186 // -------------------------------------------------------------
walter76 0:b6fd8ca8bfbf 187
albertobianco 1:219e882c32eb 188 void Timer_tick()
albertobianco 1:219e882c32eb 189 {
albertobianco 1:219e882c32eb 190 float Rmeat;
walter76 0:b6fd8ca8bfbf 191
albertobianco 1:219e882c32eb 192 if((Hrs==0)&&(Min==0)&&(Sec==0) && (TimerRunning == 1))
albertobianco 1:219e882c32eb 193 timeout = 1;
albertobianco 1:219e882c32eb 194 else
albertobianco 1:219e882c32eb 195 {
albertobianco 1:219e882c32eb 196 timeout = 0;
walter76 0:b6fd8ca8bfbf 197
albertobianco 1:219e882c32eb 198 if (TimerRunning == 1)
albertobianco 1:219e882c32eb 199 {
albertobianco 1:219e882c32eb 200 Sec--;
albertobianco 1:219e882c32eb 201 if((Hrs==0)&&(Min==0)&&(Sec==0))
albertobianco 1:219e882c32eb 202 timeout = 1;
albertobianco 1:219e882c32eb 203 else if((Sec<=0)||(Sec>60))
albertobianco 1:219e882c32eb 204 {
albertobianco 1:219e882c32eb 205 Sec=59;
albertobianco 1:219e882c32eb 206 if(Min>0)
albertobianco 1:219e882c32eb 207 Min--;
albertobianco 1:219e882c32eb 208 else if (Hrs>0)
albertobianco 1:219e882c32eb 209 {
albertobianco 1:219e882c32eb 210 Min=59;
albertobianco 1:219e882c32eb 211 Hrs--;
albertobianco 1:219e882c32eb 212 }
albertobianco 1:219e882c32eb 213 }
albertobianco 1:219e882c32eb 214 }
albertobianco 1:219e882c32eb 215 else if ((TimerRunning == 2) )
albertobianco 1:219e882c32eb 216 {
albertobianco 1:219e882c32eb 217 Sec++;
albertobianco 1:219e882c32eb 218 if((Sec>=60))
albertobianco 1:219e882c32eb 219 {
albertobianco 1:219e882c32eb 220 Sec=0;
albertobianco 1:219e882c32eb 221 Min++;
albertobianco 1:219e882c32eb 222 if(Min>=60)
albertobianco 1:219e882c32eb 223 {
albertobianco 1:219e882c32eb 224 Min = 0;
albertobianco 1:219e882c32eb 225 Hrs++;
albertobianco 1:219e882c32eb 226 }
albertobianco 1:219e882c32eb 227 }
albertobianco 1:219e882c32eb 228 }
walter76 0:b6fd8ca8bfbf 229 }
albertobianco 1:219e882c32eb 230
albertobianco 1:219e882c32eb 231 Tcoal = (float)(MAX6675_GetTemp(0)/2); // read meat & pit temperature
albertobianco 1:219e882c32eb 232 Tpit = (float)(MAX6675_GetTemp(1)/2);
albertobianco 1:219e882c32eb 233
albertobianco 1:219e882c32eb 234 pitPID.setProcessValue(Tpit);
albertobianco 1:219e882c32eb 235 TcoalPID = pitPID.compute();
albertobianco 1:219e882c32eb 236 coalPID.setSetPoint( TcoalPID );
albertobianco 1:219e882c32eb 237
albertobianco 1:219e882c32eb 238 coalPID.setProcessValue(Tcoal);
albertobianco 1:219e882c32eb 239 FanSpeed = coalPID.compute();
albertobianco 1:219e882c32eb 240
albertobianco 1:219e882c32eb 241 FAN.write(FanSpeed);
albertobianco 1:219e882c32eb 242
albertobianco 1:219e882c32eb 243 if(MN.isHead())
albertobianco 1:219e882c32eb 244 req_LCD_update = 1;
albertobianco 1:219e882c32eb 245
albertobianco 1:219e882c32eb 246
albertobianco 1:219e882c32eb 247 Rmeat = MeatIn.read();
albertobianco 1:219e882c32eb 248 Rmeat = (Rmeat * PULLUP_MEAT) / (1 - Rmeat);
albertobianco 1:219e882c32eb 249
albertobianco 1:219e882c32eb 250 Tmeat = MeatThermistor.trans_R2T(Rmeat);
albertobianco 1:219e882c32eb 251
albertobianco 1:219e882c32eb 252
albertobianco 1:219e882c32eb 253 if(Tmeat>Talm || timeout) // Meat is ready!
albertobianco 1:219e882c32eb 254 warning = 1;
albertobianco 1:219e882c32eb 255 else
albertobianco 1:219e882c32eb 256 warning = 0;
albertobianco 1:219e882c32eb 257
albertobianco 1:219e882c32eb 258
albertobianco 1:219e882c32eb 259 return;
walter76 0:b6fd8ca8bfbf 260 }
walter76 0:b6fd8ca8bfbf 261
walter76 0:b6fd8ca8bfbf 262
walter76 0:b6fd8ca8bfbf 263 // -------------------------------------------------------------
albertobianco 1:219e882c32eb 264 int saturate(int data, int min, int max)
albertobianco 1:219e882c32eb 265 {
albertobianco 1:219e882c32eb 266 if(data > max)
albertobianco 1:219e882c32eb 267 return max;
albertobianco 1:219e882c32eb 268 else if (data < min)
albertobianco 1:219e882c32eb 269 return min;
albertobianco 1:219e882c32eb 270 else return data;
albertobianco 1:219e882c32eb 271 }
walter76 0:b6fd8ca8bfbf 272
albertobianco 1:219e882c32eb 273
albertobianco 1:219e882c32eb 274 char * idleString(int n, char *dst)
albertobianco 1:219e882c32eb 275 {
albertobianco 1:219e882c32eb 276 int tcoal_l, tpit_l, tmeat_l;
albertobianco 1:219e882c32eb 277
albertobianco 1:219e882c32eb 278 switch(n)
albertobianco 1:219e882c32eb 279 {
albertobianco 1:219e882c32eb 280
albertobianco 1:219e882c32eb 281 case 0:
albertobianco 1:219e882c32eb 282 sprintf(dst,"%02d:%02d:%02d Tgt %02dC",Hrs,Min,Sec,int(Talm));
albertobianco 1:219e882c32eb 283 break;
albertobianco 1:219e882c32eb 284 case 1:
albertobianco 1:219e882c32eb 285 tcoal_l = saturate(int(Tcoal),0,999);
albertobianco 1:219e882c32eb 286 tpit_l = saturate(int(Tpit),0,999);
albertobianco 1:219e882c32eb 287 tmeat_l = saturate(int(Tmeat),0,999);
albertobianco 1:219e882c32eb 288 sprintf(dst,"C%3dC P%3dC M%2dC",tcoal_l,tpit_l,tmeat_l);
albertobianco 1:219e882c32eb 289 break;
albertobianco 1:219e882c32eb 290 case 2:
albertobianco 1:219e882c32eb 291 sprintf(dst,"d%3d CP%4dC ",int(FanSpeed * 100), int(TcoalPID));
albertobianco 1:219e882c32eb 292 break;
albertobianco 1:219e882c32eb 293 case 3:
albertobianco 1:219e882c32eb 294 sprintf(dst,"Ciao Mamma");
albertobianco 1:219e882c32eb 295 break;
albertobianco 1:219e882c32eb 296 }
albertobianco 1:219e882c32eb 297
albertobianco 1:219e882c32eb 298 return dst;
albertobianco 1:219e882c32eb 299 }
albertobianco 1:219e882c32eb 300
albertobianco 1:219e882c32eb 301
albertobianco 1:219e882c32eb 302 void Update_LCD(void)
albertobianco 1:219e882c32eb 303 {
albertobianco 1:219e882c32eb 304
albertobianco 1:219e882c32eb 305
albertobianco 1:219e882c32eb 306 if(MN.isHead())
albertobianco 1:219e882c32eb 307 {
albertobianco 1:219e882c32eb 308
albertobianco 1:219e882c32eb 309 MyLCD.locate(0,0);
albertobianco 1:219e882c32eb 310 MyLCD.printf(idleString(displayLine,stringa));
albertobianco 1:219e882c32eb 311 MyLCD.locate(0,1);
albertobianco 1:219e882c32eb 312 MyLCD.printf(idleString((displayLine+1)&0x03,stringa));
albertobianco 1:219e882c32eb 313
albertobianco 1:219e882c32eb 314 }
albertobianco 1:219e882c32eb 315 else
albertobianco 1:219e882c32eb 316 {
albertobianco 1:219e882c32eb 317 MyLCD.locate(0,0);
albertobianco 1:219e882c32eb 318 MyLCD.printf("%-16s",MN.getText());
albertobianco 1:219e882c32eb 319 if(MN.isSelect())
albertobianco 1:219e882c32eb 320 {
albertobianco 1:219e882c32eb 321 MyLCD.locate(0,1);
albertobianco 1:219e882c32eb 322 MyLCD.printf("%-16s",MN.getNextText());
albertobianco 1:219e882c32eb 323 }
albertobianco 1:219e882c32eb 324 else
albertobianco 1:219e882c32eb 325 {
albertobianco 1:219e882c32eb 326 MyLCD.locate(0,1);
albertobianco 1:219e882c32eb 327 MyLCD.printf("%-16s",MN.getDataText(stringa));
albertobianco 1:219e882c32eb 328 }
albertobianco 1:219e882c32eb 329 }
albertobianco 1:219e882c32eb 330
albertobianco 1:219e882c32eb 331
albertobianco 1:219e882c32eb 332 //Button.fall(&Button_Pressed);
albertobianco 1:219e882c32eb 333
albertobianco 1:219e882c32eb 334 #if 0
albertobianco 1:219e882c32eb 335
albertobianco 1:219e882c32eb 336
albertobianco 1:219e882c32eb 337 if(warning||timeout) // in case of a warning or timeout
albertobianco 1:219e882c32eb 338 {
albertobianco 1:219e882c32eb 339 MyLCD.locate(0,3);
albertobianco 1:219e882c32eb 340 MyLCD.printf(" ---- WARNING! ---- ");
albertobianco 1:219e882c32eb 341
albertobianco 1:219e882c32eb 342 //FAN.write(0); // stop the fan (optional)
albertobianco 1:219e882c32eb 343 } else // otherwise
albertobianco 1:219e882c32eb 344 {
albertobianco 1:219e882c32eb 345 BUZZER = 0; // buzzer off
albertobianco 1:219e882c32eb 346 }
albertobianco 1:219e882c32eb 347
albertobianco 1:219e882c32eb 348 #endif
albertobianco 1:219e882c32eb 349 }
albertobianco 1:219e882c32eb 350
albertobianco 1:219e882c32eb 351 // -------------------------------------------------------------
walter76 0:b6fd8ca8bfbf 352 int MAX6675_GetTemp(int chip)
walter76 0:b6fd8ca8bfbf 353 {
albertobianco 1:219e882c32eb 354 int Temp=0, mask=32768;
albertobianco 1:219e882c32eb 355 int i;
albertobianco 1:219e882c32eb 356
albertobianco 1:219e882c32eb 357 if(chip==0)
albertobianco 1:219e882c32eb 358 TC_CS1 = 0; // select chip #1
albertobianco 1:219e882c32eb 359 else
albertobianco 1:219e882c32eb 360 TC_CS2 = 0; // select chip #2
albertobianco 1:219e882c32eb 361 wait_ms(1);
albertobianco 1:219e882c32eb 362 for(i=0; i<16; i++) {
walter76 0:b6fd8ca8bfbf 363
albertobianco 1:219e882c32eb 364 TC_CLK = 1; // CLK high
albertobianco 1:219e882c32eb 365 if(TC_SDO == 1 ) Temp = Temp | mask;
albertobianco 1:219e882c32eb 366 wait_ms(1);
albertobianco 1:219e882c32eb 367 TC_CLK = 0; // CLK low
albertobianco 1:219e882c32eb 368 wait_ms(1);
albertobianco 1:219e882c32eb 369 mask = mask/2;
albertobianco 1:219e882c32eb 370 }
albertobianco 1:219e882c32eb 371 wait_ms(1);
albertobianco 1:219e882c32eb 372 TC_CS1 = 1; // Both CS high
albertobianco 1:219e882c32eb 373 TC_CS2 = 1;
albertobianco 1:219e882c32eb 374
albertobianco 1:219e882c32eb 375 Temp=((Temp>>3)&0x0FFF);
albertobianco 1:219e882c32eb 376
albertobianco 1:219e882c32eb 377 return(Temp);
albertobianco 1:219e882c32eb 378
walter76 0:b6fd8ca8bfbf 379 }
walter76 0:b6fd8ca8bfbf 380
walter76 0:b6fd8ca8bfbf 381 // -------------------------------------------------------------
walter76 0:b6fd8ca8bfbf 382 // -------------------------------------------------------------
walter76 0:b6fd8ca8bfbf 383 // -------------------------------------------------------------
walter76 0:b6fd8ca8bfbf 384
albertobianco 1:219e882c32eb 385 int main()
albertobianco 1:219e882c32eb 386 {
albertobianco 1:219e882c32eb 387
albertobianco 1:219e882c32eb 388 FAN.period_us(500); // set initial fan PWM period and duty-cycle
albertobianco 1:219e882c32eb 389 FAN.write(0.1);
albertobianco 1:219e882c32eb 390
albertobianco 1:219e882c32eb 391 pitPID.setInputLimits(TPIT_MIN, TPIT_MAX);
albertobianco 1:219e882c32eb 392 pitPID.setOutputLimits(TCOAL_MIN, TCOAL_MAX);
albertobianco 1:219e882c32eb 393
albertobianco 1:219e882c32eb 394 coalPID.setInputLimits(TCOAL_MIN, TCOAL_MAX);
albertobianco 1:219e882c32eb 395 coalPID.setOutputLimits(0.0, 1.0);
albertobianco 1:219e882c32eb 396
albertobianco 1:219e882c32eb 397 ALM.period_us(500); // set initial ALM period and duty-cycle
albertobianco 1:219e882c32eb 398 ALM.write(0.01);
walter76 0:b6fd8ca8bfbf 399
albertobianco 1:219e882c32eb 400 TC_SDO.mode(PullDown); // enable pull-down on TC_SDO
albertobianco 1:219e882c32eb 401
albertobianco 1:219e882c32eb 402 Button.mode(PullUp); // enable pushbutton pull-up
albertobianco 1:219e882c32eb 403
albertobianco 1:219e882c32eb 404 Button.setSampleFrequency( 20000 );
albertobianco 1:219e882c32eb 405
albertobianco 1:219e882c32eb 406 //Wheel.reset(); // reset quadrature encoder
albertobianco 1:219e882c32eb 407 Hrs = 2;
albertobianco 1:219e882c32eb 408 timeout = 0;
walter76 0:b6fd8ca8bfbf 409
albertobianco 1:219e882c32eb 410 MyLCD.cls(); // clear LCD
albertobianco 1:219e882c32eb 411
albertobianco 1:219e882c32eb 412 MyLCD.locate(0,0);
albertobianco 1:219e882c32eb 413 MyLCD.printf(__TIME__, Hrs, Min, Sec);
albertobianco 1:219e882c32eb 414 MyLCD.locate(1,1);
albertobianco 1:219e882c32eb 415 MyLCD.printf(__DATE__, Hrs, Min, Sec);
albertobianco 1:219e882c32eb 416
albertobianco 1:219e882c32eb 417
albertobianco 1:219e882c32eb 418 Sec_Beat.attach(&Timer_tick, 1); // configure tickers
albertobianco 1:219e882c32eb 419 //decSecBeat.attach(&Fast_tick, 1); // configure tickers
albertobianco 1:219e882c32eb 420 FanSpeed = 0;
walter76 0:b6fd8ca8bfbf 421
albertobianco 1:219e882c32eb 422 //Button.fall(&Button_Pressed); // enable button interrupt
albertobianco 1:219e882c32eb 423 Button.attach_deasserted( &Button_Pressed );
walter76 0:b6fd8ca8bfbf 424
albertobianco 1:219e882c32eb 425 while(1)
albertobianco 1:219e882c32eb 426 {
albertobianco 1:219e882c32eb 427 if(req_LCD_update) {
albertobianco 1:219e882c32eb 428 Update_LCD();
albertobianco 1:219e882c32eb 429 req_LCD_update = 0;
albertobianco 1:219e882c32eb 430 }
albertobianco 1:219e882c32eb 431
albertobianco 1:219e882c32eb 432 if(warning)
albertobianco 1:219e882c32eb 433 ALM.write(0.01);
albertobianco 1:219e882c32eb 434 else
albertobianco 1:219e882c32eb 435 ALM.write(0.0);
albertobianco 1:219e882c32eb 436
albertobianco 1:219e882c32eb 437 if(MN.isSelect())
albertobianco 1:219e882c32eb 438 {
albertobianco 1:219e882c32eb 439 if(Wheel.getPulses() > 0)
albertobianco 1:219e882c32eb 440 {
albertobianco 1:219e882c32eb 441 MN.next();
albertobianco 1:219e882c32eb 442 Wheel.reset();
albertobianco 1:219e882c32eb 443 req_LCD_update = 1;
albertobianco 1:219e882c32eb 444 }
albertobianco 1:219e882c32eb 445 else if(Wheel.getPulses() < 0)
albertobianco 1:219e882c32eb 446 {
albertobianco 1:219e882c32eb 447 MN.prev();
albertobianco 1:219e882c32eb 448 Wheel.reset();
albertobianco 1:219e882c32eb 449 req_LCD_update = 1;
albertobianco 1:219e882c32eb 450 }
albertobianco 1:219e882c32eb 451 }
albertobianco 1:219e882c32eb 452 else if(MN.isEdit())
albertobianco 1:219e882c32eb 453 {
albertobianco 1:219e882c32eb 454 if(Wheel.getPulses())
albertobianco 1:219e882c32eb 455 {
albertobianco 1:219e882c32eb 456 MN.edit(Wheel.getPulses());
albertobianco 1:219e882c32eb 457 Wheel.reset();
albertobianco 1:219e882c32eb 458 req_LCD_update = 1;
albertobianco 1:219e882c32eb 459 }
albertobianco 1:219e882c32eb 460 }
albertobianco 1:219e882c32eb 461 else if(MN.isIdle())
albertobianco 1:219e882c32eb 462 {
albertobianco 1:219e882c32eb 463 if(Wheel.getPulses() > 0)
albertobianco 1:219e882c32eb 464 {
albertobianco 1:219e882c32eb 465 displayLine++;
albertobianco 1:219e882c32eb 466 displayLine &= 0x3;
albertobianco 1:219e882c32eb 467 Wheel.reset();
albertobianco 1:219e882c32eb 468 req_LCD_update = 1;
albertobianco 1:219e882c32eb 469 }
albertobianco 1:219e882c32eb 470 else if(Wheel.getPulses() < 0)
albertobianco 1:219e882c32eb 471 {
albertobianco 1:219e882c32eb 472 displayLine--;
albertobianco 1:219e882c32eb 473 displayLine &= 0x3;
albertobianco 1:219e882c32eb 474 Wheel.reset();
albertobianco 1:219e882c32eb 475 req_LCD_update = 1;
albertobianco 1:219e882c32eb 476 }
albertobianco 1:219e882c32eb 477
albertobianco 1:219e882c32eb 478 }
albertobianco 1:219e882c32eb 479 }
albertobianco 1:219e882c32eb 480
walter76 0:b6fd8ca8bfbf 481
albertobianco 1:219e882c32eb 482
albertobianco 1:219e882c32eb 483
walter76 0:b6fd8ca8bfbf 484 } //main