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fix overflow in tempError

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David P Hilton
2018-10-29 23:05:12 -06:00
parent 766073e208
commit ddf3e4f7d3
1 changed files with 4 additions and 1 deletions
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5
workspace/TS100/src/main.cpp
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@@ -948,7 +948,10 @@ 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.
tempError.update(currentlyActiveTemperatureTarget - rawTemp + rawC/4); int32_t tError = currentlyActiveTemperatureTarget - rawTemp + rawC/4;
tError = tError > INT16_MAX ? INT16_MAX : tError;
tError = tError < INT16_MIN ? INT16_MIN : tError;
tempError.update(tError);
// Now for the PID! // Now for the PID!
int32_t milliWattsOut = 0; int32_t milliWattsOut = 0;