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Temperature calibration control program
Revision 1:68515313ce3e, committed 2019-06-25
- Comitter:
- justinbuckland
- Date:
- Tue Jun 25 11:45:10 2019 +0000
- Parent:
- 0:147db0900012
- Commit message:
- 5 resistance setpoint steps for calibration
Changed in this revision
main.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/main.cpp Mon Jun 24 08:48:22 2019 +0000 +++ b/main.cpp Tue Jun 25 11:45:10 2019 +0000 @@ -1,31 +1,13 @@ #include "mbed.h" -// thermal cycling settings -#define N_CYCLES 40 // number of thermal cycles (ramp-hold-ramp-hold) -#define R_SETPOINT_LOW 2.129 // heater resistance at low temp -#define T_LOW_RAMP 0 // low temperature ramp time (ms) -#define T_LOW_HOLD 30000 // low temperature hold time (ms) -#define R_SETPOINT_MID 2.211 // heater resistance at mid temp -#define T_MID_RAMP 0 // mid temperature ramp time (ms) -#define T_MID_HOLD 0 // mid temperature hold time (ms) -#define R_SETPOINT_HIGH 2.35 // heater resistance at high temp -#define T_HIGH_RAMP 0 // high temperaure ramp time (ms) -#define T_HIGH_HOLD 10000 // high temperature time (ms) -#define T_HIGH_START 60000 // hotstart time(ms) -#define R_LYSE 1.99 // lyse temperature setpoint -#define T_LYSE 0 // lyse time (ms) -#define R_RT 2.3 // RT temperature setpoint -#define T_RT 300000 // RT time (ms) -#define T_FLUIDICS 0 // nominal time for fluidics post lyse -#define T_HOLD 60000 -#define T_RAMP 15000 +// select heater +#define HEATER 1 // inner heater = 1, outer heater = 2 -#define T_FORM_DSNA 0 // form dsna post thermocycling -#define R_FORM_DSNA 2.8 // temperature to form dsna post thermocycling - -#define T_MELT_CURVE 50000 // melt curve ramp time -#define R_MELT_LOW 1.82 // low end melt curve temperature -#define R_MELT_HIGH 2.08 // high end melt curve temperature +// temperature calibration settings +#define N_STEPS 5 // number of temperature calibration points +#define R_SET_START 1.900 // heater resistance at lowest temp +#define R_SET_STEP 0.100 // heater resistance at highest temp +#define T_HOLD 100000 // temperature hold time (ms) // temperature measurement settings #define N_SAMPLES 1 // number of samples to acquire for I and V measurements @@ -33,7 +15,7 @@ #define PULSE_WIDTH 5000 // heat or cool pulse width (us) #define MEAS_DELAY 50 // measurement delay after turning on FET (us) #define CAM_TRIG 20 // camera trigger pulse width (us) -#define LOG_INTERVAL 500 // log file interval (ms) +#define LOG_INTERVAL 1000 // log file interval (ms) // ADC channels to read #define CH_A 1 // value of convst bus to read channel A only @@ -132,7 +114,8 @@ if (i2 > 0) r2 = v2/i2; // select heater (inner or outer) - r = r1; // r1 is inner, r21 is outer + if (HEATER == 1) r = r1; + if (HEATER == 2) r = r2; } void tempControl(int endTime){ @@ -186,6 +169,7 @@ int main() { int endTime = 0; + int iStep = 0; rLED = 0; yLED = 0; @@ -194,18 +178,11 @@ drive = 0; pc.baud(115200); - //Reset ADC sequence sprintf(outString," iCycle, Time(ms), r, rSet\n"); pc.printf("%s", outString); fprintf(fp, outString); - // while(userButton == 0) - // { - // wait_ms(1); - // }; - - reset = 1; wait_ms(1); reset = 0; @@ -220,35 +197,15 @@ yLED = 0; // heater off gLED = 1; // microprocessor power on - timer.start(); - if (T_HOLD > 0) { - endTime = endTime + T_HOLD; - rSet = R_SETPOINT_LOW; - tempControl(endTime); - } - if (T_RAMP > 0) { - endTime = endTime + T_RAMP; - tempControlRamp(R_SETPOINT_LOW, R_SETPOINT_MID, endTime); - + while (iStep < N_STEPS) { + endTime = endTime + T_HOLD; + rSet = R_SET_START + R_SET_STEP*iStep; + tempControl(endTime); + iStep++; } - if (T_HOLD > 0) { - endTime = endTime + T_HOLD; - rSet = R_SETPOINT_MID; - tempControl(endTime); - } - if (T_RAMP > 0) { - endTime = endTime + T_RAMP; - tempControlRamp(R_SETPOINT_MID, R_SETPOINT_HIGH, endTime); - - } - if (T_HOLD > 0) { - endTime = endTime + T_HOLD; - rSet = R_SETPOINT_HIGH; - tempControl(endTime); - } - + // extinguish rLED (thermocycling complete), ensure heater is off and close log file for access drive = 0; rLED = 0;