作成途中ですよーだ
Dependencies: PID QEI mbed-rtos mbed PreHeater SB1602E
main.cpp
- Committer:
- kazu_zamasu
- Date:
- 2015-06-14
- Revision:
- 3:9af1bd67c5f8
- Parent:
- 2:387240c58110
- Child:
- 4:143b93e499a3
File content as of revision 3:9af1bd67c5f8:
#include "mbed.h" #include "PID.h" #include "QEI.h" #include "rtos.h" #include "math.h" #include "SB1602E.h" /* PID constant initialize Kc, Ti, Td, interval */ #define P 1.0 //propotional band #define I 0.2 //Integral #define D 0.1 //Devide #define RATE 0.1 //update time sec PID TIC(P, I, D, RATE); //GPIO initilaize AnalogIn THAI(dp4); PwmOut out(dp1); DigitalOut led1(dp14),led2(dp28); DigitalIn Run(dp17,PullDown); /*Power on first setpoint temperature */ #define InitialSP 50.0 // PID initial setpoint float temp_sv_input = InitialSP; double temp_pv,temp_cal; char *init_massage = "Welcome!"; /*Rotary encode pin, pinmode and sppecification instance */ #define ROTATE_PER_REVOLUTIONS 24 //QEI 1 rotate by count QEI wheel(dp11, PullUp, dp13, PullUp,NC, ROTATE_PER_REVOLUTIONS, QEI::X2_ENCODING); /*LCD I2C pin initialize */ SB1602E lcd(dp5, dp27, init_massage); // SDA, SCL void TempCal_thread(void const *args) { while (true) { /*input for change to 0 to 100% range by 30C to 120C */ #define RangeSPL 30.0 //calcurate celcius range #define RangeSPH 120.0 //same above /*Temperature setpoint low high range */ temp_sv_input = wheel.getPulses() * 0.5 + RangeSPL; if (temp_sv_input <= RangeSPL) { temp_sv_input = RangeSPL; } else if (temp_sv_input >= RangeSPH) { temp_sv_input = RangeSPH; } temp_cal = THAI.read(); /*six order polynomial calculation value Thermister pull up resiter 560R Thermister B value 3380K Thermister Resistance 10K ohm at 25C */ temp_pv =-0.7964*pow(temp_cal,6.0) - 2.5431*pow(temp_cal,5.0) +63.605*pow(temp_cal,4.0) - 274.1*pow(temp_cal,3.0) + 522.57*pow(temp_cal,2.0) - 539.26*temp_cal + 405.76; Thread::wait(500); /*LCD Display section */ lcd.printf(0, "Temp SP %.1f\n", temp_sv_input); lcd.printf(1, "Temp PV %.1f\n", temp_pv); } } int main() { /* call Tmeperature calculate section */ Thread thread(TempCal_thread); //LCD contrast set from 00 to 3f 64resolution defult set is 32step #define LCDCont 0x32 //LCD contrast set from 00 to 3f 64resolution defult set is 32step lcd.contrast(LCDCont); while (1) { /*Analog input from 30.0C to 120.0C by 0% to 100% */ #define SV_LL 0.0 //PID setpoint % value for lo limit #define SV_HL 100.0 //PID setpoint % value for high limit /* TIC PID setpoit limit set */ TIC.setInputLimits(SV_LL, SV_HL); /* Output from 0.0 to 1.0*/ #define OV_LL 0.0 //PID calcurate output value 0.0 = 0% #define OV_HL 1.0 //PID calcurate output value 1.0 = 100% /* TIC PID control output limit set */ TIC.setOutputLimits(OV_LL, OV_HL); /* TIC PID control output bias */ #define Bias 0.2 //control output bias TIC.setBias(Bias); /* TIC PID control mode set 0=Stop 1=Auto*/ TIC.setMode(Run); /* TIC PID setpoint temperature read */ TIC.setSetPoint(temp_sv_input); /* TIC PID output control */ if (Run == 0) { out = OV_LL; } else if (Run == 1) { /* TIC PID read process value */ TIC.setProcessValue(temp_cal); //PID calculate output. out = TIC.compute(); } //Wait for another loop calculation. Thread::wait(RATE); } }