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Dont wrap negative deltas

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This commit is contained in:
Ben V. Brown
2022-02-05 09:59:45 +11:00
parent 4f2179287e
commit c38dfb6007
2 changed files with 5 additions and 5 deletions
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2
source/Core/BSP/Miniware/configuration.h
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@@ -95,7 +95,7 @@
#define DETAILED_IDLE 0 // 0: Disable 1: Enable - Default 0 #define DETAILED_IDLE 0 // 0: Disable 1: Enable - Default 0
#define THERMAL_RUNAWAY_TIME_SEC 20 #define THERMAL_RUNAWAY_TIME_SEC 20
#define THERMAL_RUNAWAY_TEMP_C 20 #define THERMAL_RUNAWAY_TEMP_C 10
#define CUT_OUT_SETTING 0 // default to no cut-off voltage #define CUT_OUT_SETTING 0 // default to no cut-off voltage
#define RECOM_VOL_CELL 33 // Minimum voltage per cell (Recommended 3.3V (33)) #define RECOM_VOL_CELL 33 // Minimum voltage per cell (Recommended 3.3V (33))

8
source/Core/Threads/PIDThread.cpp
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@@ -148,12 +148,12 @@ void detectThermalRunaway(const int16_t currentTipTempInC, const int tError) {
// Check for thermal runaway, where it has been x seconds with negligible (y) temp rise // Check for thermal runaway, where it has been x seconds with negligible (y) temp rise
// While trying to actively heat // While trying to actively heat
// If we are more than 20C below the setpoint
if ((tError > THERMAL_RUNAWAY_TEMP_C)) { if ((tError > THERMAL_RUNAWAY_TEMP_C)) {
// Temp error is high
// If we have heated up by more than 20C since last sample point, snapshot time and tip temp
int16_t delta = (int16_t)currentTipTempInC - (int16_t)tipTempCRunawayTemp; int16_t delta = (int16_t)currentTipTempInC - (int16_t)tipTempCRunawayTemp;
if (delta < 0) {
delta = -delta;
}
if (delta > THERMAL_RUNAWAY_TEMP_C) { if (delta > THERMAL_RUNAWAY_TEMP_C) {
// We have heated up more than the threshold, reset the timer // We have heated up more than the threshold, reset the timer
tipTempCRunawayTemp = currentTipTempInC; tipTempCRunawayTemp = currentTipTempInC;