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Dependencies:   Menu PID_v2 PinDetect QEI TextLCD Thermistor mbed

main.cpp@1:219e882c32eb, 2015-11-27 (annotated)

Committer:
albertobianco
Date:
Fri Nov 27 10:50:06 2015 +0000
Revision:
1:219e882c32eb
Parent:
0:b6fd8ca8bfbf
Child:
3:884bfa90a09d
Ciau, neh!

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