mirror of https://github.com/rusefi/rusefi-1.git
67 lines
1.7 KiB
C++
67 lines
1.7 KiB
C++
#include "pch.h"
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#if EFI_CAN_SUPPORT || EFI_UNIT_TEST
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#include "AemXSeriesLambda.h"
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AemXSeriesWideband::AemXSeriesWideband(uint8_t sensorIndex, SensorType type)
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: CanSensorBase(
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0x180 + sensorIndex, // 0th sensor is 0x180, others sequential above that
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type,
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MS2NT(21) // sensor transmits at 100hz, allow a frame to be missed
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)
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, m_sensorIndex(sensorIndex)
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{}
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void AemXSeriesWideband::decodeFrame(const CANRxFrame& frame, efitick_t nowNt) {
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if (frame.DLC != 8) {
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invalidate();
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return;
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}
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// reports in 0.0001 lambda per LSB
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uint16_t lambdaInt = SWAP_UINT16(frame.data16[0]);
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float lambdaFloat = 0.0001f * lambdaInt;
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// This bit is a reserved bit on AEM - but is set on rusEfi's controller
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bool isRusefiController = frame.data8[7] & 0x80;
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#if EFI_TUNER_STUDIO
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// rusEfi controller sends some extra diagnostic data about its internal workings
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if (isRusefiController && engineConfiguration->debugMode == DBG_RUSEFI_WIDEBAND) {
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float pumpDuty = frame.data8[2] / 255.0f;
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float nernstVoltage = frame.data8[4] / 200.0f;
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engine->outputChannels.debugFloatField1 = pumpDuty;
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engine->outputChannels.debugFloatField3 = nernstVoltage;
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}
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if (isRusefiController) {
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float wbEsr = frame.data8[3] * 4;
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// TODO: convert ESR to temperature
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engine->outputChannels.wbTemperature[m_sensorIndex] = wbEsr;
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// TODO: decode heater duty
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engine->outputChannels.wbHeaterDuty[m_sensorIndex] = 0;
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}
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#endif
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// bit 6 indicates sensor fault
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bool sensorFault = frame.data8[7] & 0x40;
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if (sensorFault) {
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invalidate();
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return;
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}
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// bit 7 indicates valid
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bool valid = frame.data8[6] & 0x80;
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if (!valid) {
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invalidate();
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return;
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}
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setValidValue(lambdaFloat, nowNt);
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}
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#endif
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