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Compensate for heater coil resistance change

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This commit is contained in:
Ben V. Brown
2024-06-08 20:30:32 +10:00
parent dbc2d08bfe
commit 6e1cfdddf4
2 changed files with 32 additions and 10 deletions
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20
source/Core/BSP/Sequre/BSP.cpp
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@@ -246,7 +246,25 @@ uint64_t getDeviceID() {
return HAL_GetUIDw0() | ((uint64_t)HAL_GetUIDw1() << 32);
}
uint8_t getTipResistanceX10() { return TIP_RESISTANCE; }
uint8_t getTipResistanceX10() {
#ifdef COPPER_HEATER_COIL
// TODO
//! Warning, must never return 0.
TemperatureType_t measuredTemperature = TipThermoModel::getTipInC(false);
if (measuredTemperature < 25) {
return 50; // Start assuming under spec to soft-start
}
// Assuming a temperature rise of 0.00393 per deg c over 20C
uint32_t scaler = 393 * (measuredTemperature - 20);
return TIP_RESISTANCE + ((TIP_RESISTANCE * scaler) / 100000);
#else
return TIP_RESISTANCE;
#endif
}
bool isTipShorted() { return false; }
uint8_t preStartChecksDone() { return 1; }