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