mirror of https://github.com/rusefi/rusefi-1.git
113 lines
4.8 KiB
C
113 lines
4.8 KiB
C
/*
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* @file cj125.h
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*
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* @date: Jul 17, 2016
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* @author Andrey Belomutskiy, (c) 2012-2020
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*/
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#ifndef HW_LAYER_SENSORS_CJ125_H_
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#define HW_LAYER_SENSORS_CJ125_H_
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#include "cj125_logic.h"
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/**********************************************************************************
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* Courtesy "Turbo SOB"
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* http://www.turbo-mopar.com/forums/showthread.php?77041-Wideband-O2-Controller-Project-with-EGT-A2D-DAQ-Diagnostic-Etc&p=1110559#post1110559
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INIT_REG1 - CJ125 Initialization Register 1
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00x000x0
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||||||||---- VL - Pump Current Sense Amplifier - 0 = x8, 1 = x17
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If VL is set to "0" the amplification of Ip is 8.
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If VL is "1" the amplification is 17. The higher
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amplification is needed for a better resolution
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at Lambda > 1, amplification 8 for Lambda < 1.
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Note: It seems to make no difference, always set to 1.
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|||||||----- Unused
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||||||------ LA - Pump Current Sense Amplifier - 0 = measurement, 1 = calibration
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If LA is "0" the measurement mode for Ip is active.
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The current pump current is displayed on Ua. If LA is
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set to "1" the calibration mode is active. The shown
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voltage on Ua must been subtracted from the later measurement.
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|||||------- Undocumented Bit - Note: CJ125 only seems to work when set to 1.
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||||-------- RA - Measurement Current for Ri - 0 = measurement, 1 = calibration
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If RA is "0" the measurement mode for Ri is active and
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the current resistance of the probe is "displayed" on Ur.
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If RA is "1" the calibration mode is active. You get the
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optimal voltage for the inner resistance of the probe on Ur.
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|||--------- Unused
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||---------- PA - Pump Current Control - Set to 0 to be active
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|----------- ENABLE/HOLD - Must be set to 1 to enable
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***********************************************************************************/
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/**********************************************************************************
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INIT_REG2 - CJ125 Initialization Register 1
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xxx00000
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||||||||---- PR0 - Reference Pump Current (10 uA)
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|||||||----- PR1 - Reference Pump Current (20 uA)
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||||||------ PR2 - Reference Pump Current (40 uA)
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|||||------- PR3 - Reference Pump Current (80 uA)
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||||-------- ENSCUN - Enables diagnostics for pin UN of the CJ125
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|||--------- Unused
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||---------- Unused
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|----------- Unused
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***********************************************************************************/
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/**********************************************************************************
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DIAG_REG - CJ125 Diagnostic Register Definition (Read Only)
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00000000
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||||||||---- Sensor VM Diagnostic Bit 0
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|||||||----- Sensor VM Diagnostic Bit 1
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||||||------ Sensor UN Diagnostic Bit 0
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|||||------- Sensor UN Diagnostic Bit 1
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||||-------- Sensor IA/IP Diagnostic Bit 0
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|||--------- Sensor IA/IP Diagnostic Bit 1
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00 = Short circuit to ground
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01 = Low Battery
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10 = Short circuit to Vbatt
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11 = No Failure
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||---------- Ext. Heater DIAHD Diagnostic Bit
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|----------- Ext. Heater DIAHG Diagnostic Bit
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00 = Short circuit to ground
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01 = Open Load
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10 = Short circuit to Vbatt
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11 = No Failure
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***********************************************************************************/
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#define CJ125_CALIBRATION_DELAY 1000 // 1 sec
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#define CJ125_TICK_DELAY 20 // 20 ms
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#define CJ125_IDLE_TICK_DELAY 1000 // 1 sec
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#define CJ125_CALIBRATE_NUM_SAMPLES 10
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#define CJ125_UR_PREHEAT_THR 2.0f // Ur > 2.0 Volts is too cold to control with PID
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#define CJ125_UR_OVERHEAT_THR 0.5f // Ur < 0.5 Volts is overheat
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#define CJ125_UR_GOOD_THR 1.4f
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#define CJ125_PREHEAT_MIN_DUTY 0.9f
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//#define CJ125_PREHEAT_TIMEOUT 90 // 90 secs
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#define CJ125_PREHEAT_TIMEOUT 300
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#define CJ125_VOLTAGE_TO_16BIT_FACTOR 4096.0f
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#define CJ125_PUMP_SHUNT_RESISTOR 61.9f
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#define CJ125_STOICH_RATIO 14.7f
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#define CJ125_PUMP_CURRENT_FACTOR 1000.0f
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// Returned if there's no valid measurement
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#define CJ125_AFR_NAN 0.0f
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#if EFI_TUNER_STUDIO
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void cjPostState(TunerStudioOutputChannels *tsOutputChannels);
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#endif /* EFI_TUNER_STUDIO */
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void initCJ125(Logging *shared DECLARE_ENGINE_PARAMETER_SUFFIX);
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float cjGetAfr(DECLARE_ENGINE_PARAMETER_SIGNATURE);
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bool cjHasAfrSensor(DECLARE_ENGINE_PARAMETER_SIGNATURE);
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void cj125defaultPinout();
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#endif /* HW_LAYER_SENSORS_CJ125_H_ */
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