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Merge branch 'master' of https://github.com/Ralim/ts100

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Ben V. Brown
2018-11-11 09:28:13 +11:00
parent d5beab76bb 4b539f09b6
commit 5b882c819c
2 changed files with 57 additions and 49 deletions
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20
workspace/TS100/src/main.cpp
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@@ -803,7 +803,8 @@ void startGUITask(void const *argument __unused) {
#ifdef MODEL_TS80 #ifdef MODEL_TS80
//Here we re-check for tip presence //Here we re-check for tip presence
if (idealQCVoltage < 90) if (idealQCVoltage < 90)
idealQCVoltage = calculateMaxVoltage(systemSettings.cutoutSetting); idealQCVoltage = calculateMaxVoltage(
systemSettings.cutoutSetting);
seekQC(idealQCVoltage, systemSettings.voltageDiv); seekQC(idealQCVoltage, systemSettings.voltageDiv);
#endif #endif
gui_solderingMode(0); // enter soldering mode gui_solderingMode(0); // enter soldering mode
@@ -943,7 +944,8 @@ void startPIDTask(void const *argument __unused) {
// to be unstable. Use a rolling average to dampen it. // to be unstable. Use a rolling average to dampen it.
// We overshoot by roughly 1/2 of 1 degree Fahrenheit. // We overshoot by roughly 1/2 of 1 degree Fahrenheit.
// This helps stabilize the display. // This helps stabilize the display.
int32_t tError = currentlyActiveTemperatureTarget - rawTemp + rawC/4; int32_t tError = currentlyActiveTemperatureTarget - rawTemp
+ rawC / 4;
tError = tError > INT16_MAX ? INT16_MAX : tError; tError = tError > INT16_MAX ? INT16_MAX : tError;
tError = tError < INT16_MIN ? INT16_MIN : tError; tError = tError < INT16_MIN ? INT16_MIN : tError;
tempError.update(tError); tempError.update(tError);
@@ -954,17 +956,21 @@ void startPIDTask(void const *argument __unused) {
// P term - total power needed to hit target temp next cycle. // P term - total power needed to hit target temp next cycle.
// thermal mass = 1690 milliJ/*C for my tip. // thermal mass = 1690 milliJ/*C for my tip.
// = Watts*Seconds to raise Temp from room temp to +100*C, divided by 100*C. // = Watts*Seconds to raise Temp from room temp to +100*C, divided by 100*C.
// divided by 20 to let I term dominate near set point. // we divide milliWattsNeeded by 20 to let the I term dominate near the set point.
// I should retune this, but don't want to do it until // This is necessary because of the temp noise and thermal lag in the system.
// the feed-forward temp adjustment is in place. // Once we have feed-forward temp estimation we should be able to better tune this.
#ifdef MODEL_TS100 #ifdef MODEL_TS100
const uint16_t mass = 1690 / 20; const uint16_t mass = 1690 / 20; // divide here so division is compile-time.
#endif #endif
#ifdef MODEL_TS80 #ifdef MODEL_TS80
const uint16_t mass = 1690 / 50; const uint16_t mass = 1690 / 50;
#endif #endif
int32_t milliWattsNeeded = tempToMilliWatts(tempError.average(), mass, rawC); int32_t milliWattsNeeded = tempToMilliWatts(tempError.average(),
mass, rawC);
// note that milliWattsNeeded is sometimes negative, this counters overshoot
// from I term's inertia.
milliWattsOut += milliWattsNeeded; milliWattsOut += milliWattsNeeded;
// I term - energy needed to compensate for heat loss. // I term - energy needed to compensate for heat loss.

2
workspace/TS100/src/power.cpp
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@@ -17,6 +17,8 @@ history<uint16_t, oscillationPeriod> milliWattHistory = {{0}, 0, 0};
int32_t tempToMilliWatts(int32_t rawTemp, uint16_t mass, uint8_t rawC) { int32_t tempToMilliWatts(int32_t rawTemp, uint16_t mass, uint8_t rawC) {
// mass is in milliJ/*C, rawC is raw per degree C // mass is in milliJ/*C, rawC is raw per degree C
// returns milliWatts needed to raise/lower a mass by rawTemp
// degrees in one cycle.
int32_t milliJoules = mass * rawTemp / rawC; int32_t milliJoules = mass * rawTemp / rawC;
return milliJoules * hz; return milliJoules * hz;
} }