620 lines
28 KiB
C++
620 lines
28 KiB
C++
/*
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Speeduino - Simple engine management for the Arduino Mega 2560 platform
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Copyright (C) Josh Stewart
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A full copy of the license may be found in the projects root directory
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*/
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/*
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This is for handling the data broadcasted to various CAN dashes and instrument clusters.
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*/
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#include "globals.h"
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#if defined(NATIVE_CAN_AVAILABLE)
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#include "comms_CAN.h"
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#include "utilities.h"
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CAN_message_t inMsg;
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CAN_message_t outMsg;
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//These are declared locally for Teensy due to this issue: https://github.com/tonton81/FlexCAN_T4/issues/67
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#if defined(CORE_TEENSY35) || defined(CORE_TEENSY36) // use for Teensy 3.5/3.6 only
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FlexCAN_T4<CAN0, RX_SIZE_256, TX_SIZE_16> Can0;
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#elif defined(CORE_TEENSY41) // use for Teensy 4.1 only
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FlexCAN_T4<CAN1, RX_SIZE_256, TX_SIZE_16> Can0;
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#endif
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// Forward declare
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void DashMessage(uint16_t DashMessageID);
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void initCAN()
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{
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#if defined (NATIVE_CAN_AVAILABLE)
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configPage9.intcan_available = 1; // device has internal canbus
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//Teensy uses the Flexcan_T4 library to use the internal canbus
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//enable local can interface
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//setup can interface to 500k
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Can0.begin();
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Can0.setBaudRate(500000);
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Can0.enableFIFO();
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/* Note: This must come after the call to setPinMapping() or else pins 29 and 30 will become unusable as outputs.
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* Workaround for: https://github.com/tonton81/FlexCAN_T4/issues/14 */
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#if defined(CORE_TEENSY35) // use for Teensy 3.5 only
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Can0.setRX(DEF);
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Can0.setTX(DEF);
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#endif
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#endif
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}
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int CAN_read()
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{
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return Can0.read(inMsg);
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}
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void CAN_write()
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{
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Can0.write(outMsg);
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}
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void sendBMWCluster()
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{
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DashMessage(CAN_BMW_DME1);
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Can0.write(outMsg);
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DashMessage(CAN_BMW_DME2);
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Can0.write(outMsg);
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DashMessage(CAN_BMW_DME4);
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Can0.write(outMsg);
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}
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void sendVAGCluster()
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{
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DashMessage(CAN_VAG_RPM);
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Can0.write(outMsg);
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DashMessage(CAN_VAG_VSS);
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Can0.write(outMsg);
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}
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void receiveCANwbo()
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{
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// Currently only RusEFI CAN Wideband supported: https://github.com/mck1117/wideband
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if(configPage2.canWBO == CAN_WBO_RUSEFI)
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{
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outMsg.id = 0xEF50000;
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outMsg.flags.extended = 1;
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outMsg.len = 2;
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outMsg.buf[0] = currentStatus.battery10; // We don't do any conversion since factor is 0.1 and speeduino value is x10
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outMsg.buf[1] = BIT_CHECK(currentStatus.engine, BIT_ENGINE_RUN) ? 0x1 : 0x0; // Enable heater once engine is running (ie. above cranking rpm), this condition can be changed to CLT above certain temp and so on.
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Can0.write(outMsg);
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if ((inMsg.id == 0x190 || inMsg.id == 0x192))
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{
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uint32_t inLambda;
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inLambda = (word(inMsg.buf[3], inMsg.buf[2])); // Combining 2 bytes of data into single variable factor is 0.0001 so lambda 1 comes in as 10K
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if(inMsg.buf[1] == 0x1) // Checking if lambda is valid
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{
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switch(inMsg.id)
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{
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case 0x190:
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if ((inLambda * configPage2.stoich / 10000) > 250) { //Check if we dont overflow the 8bit O2 variable
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currentStatus.O2 = 250;
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break;
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}
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currentStatus.O2 = (unsigned int)(inLambda * configPage2.stoich / 10000); // Multiplying lambda by stoich ratio to get AFR and dividing it by 10000 to get correct value
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break;
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case 0x192:
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if ((inLambda * configPage2.stoich / 10000) > 250) { //Check if we dont overflow the 8bit O2 variable
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currentStatus.O2 = 250;
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break;
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}
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currentStatus.O2_2 = (unsigned int)(inLambda * configPage2.stoich / 10000); // Multiplying lambda by stoich ratio to get AFR and dividing it by 10000 to get correct value
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break;
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default:
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break;
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}
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}
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}
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}
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}
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// switch case for gathering all data to message based on CAN Id.
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void DashMessage(uint16_t DashMessageID)
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{
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switch (DashMessageID)
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{
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case CAN_BMW_DME1:
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uint32_t temp_RPM;
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temp_RPM = currentStatus.RPM * 64; //RPM conversion is currentStatus.RPM * 6.4, but this does it without floats.
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temp_RPM = temp_RPM / 10;
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outMsg.id = DashMessageID;
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outMsg.len = 8;
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outMsg.buf[0] = 0x05; //bitfield, Bit0 = 1 = terminal 15 on detected, Bit2 = 1 = the ASC message ASC1 was received within the last 500 ms and contains no plausibility errors
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outMsg.buf[1] = 0x0C; //Indexed Engine Torque in % of C_TQ_STND TBD do torque calculation.
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outMsg.buf[2] = lowByte(uint16_t(temp_RPM)); //lsb RPM
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outMsg.buf[3] = highByte(uint16_t(temp_RPM)); //msb RPM
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outMsg.buf[4] = 0x0C; //Indicated Engine Torque in % of C_TQ_STND TBD do torque calculation!! Use same as for byte 1
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outMsg.buf[5] = 0x15; //Engine Torque Loss (due to engine friction, AC compressor and electrical power consumption)
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outMsg.buf[6] = 0x00; //not used
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outMsg.buf[7] = 0x35; //Theorethical Engine Torque in % of C_TQ_STND after charge intervention
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break;
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case CAN_BMW_DME2:
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uint8_t temp_TPS;
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uint8_t temp_BARO;
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uint16_t temp_CLT;
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temp_TPS = map(currentStatus.TPS, 0, 200, 1, 254);//TPS value conversion (from 0x01 to 0xFE)
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temp_CLT = (((currentStatus.coolant - CALIBRATION_TEMPERATURE_OFFSET) + 48)*4/3); //CLT conversion (actual value to add is 48.373, but close enough)
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if (temp_CLT > 255) { temp_CLT = 255; } //CLT conversion can yield to higher values than what fits to byte, so limit the maximum value to 255.
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temp_BARO = currentStatus.baro;
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outMsg.id = DashMessageID;
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outMsg.len = 7;
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outMsg.buf[0] = 0x11; //Multiplexed Information
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outMsg.buf[1] = temp_CLT;
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outMsg.buf[2] = temp_BARO;
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outMsg.buf[3] = 0x08; //bitfield, Bit0 = 0 = Clutch released, Bit 3 = 1 = engine running
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outMsg.buf[4] = 0x00; //TPS_VIRT_CRU_CAN (Not used)
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outMsg.buf[5] = temp_TPS;
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outMsg.buf[6] = 0x00; //bitfield, Bit0 = 0 = brake not actuated, Bit1 = 0 = brake switch system OK etc...
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outMsg.buf[7] = 0x00; //not used, but set to zero just in case.
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break;
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case 0x545: //fuel consumption and CEl light for BMW e46/e39/e38 instrument cluster
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//fuel consumption calculation not implemented yet. But this still needs to be sent to get rid of the CEL and EML fault lights on the dash.
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outMsg.id = DashMessageID;
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outMsg.len = 5;
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outMsg.buf[0] = 0x00; //Check engine light (binary 10), Cruise light (binary 1000), EML (binary 10000).
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outMsg.buf[1] = 0x00; //LSB Fuel consumption
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outMsg.buf[2] = 0x00; //MSB Fuel Consumption
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if (currentStatus.coolant > 159) { outMsg.buf[3] = 0x08; } //Turn on overheat light if coolant temp hits 120 degrees celsius.
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else { outMsg.buf[3] = 0x00; } //Overheat light off at normal engine temps.
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outMsg.buf[4] = 0x7E; //this is oil temp
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break;
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case 0x280: //RPM for VW instrument cluster
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temp_RPM = currentStatus.RPM * 4; //RPM conversion
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outMsg.id = DashMessageID;
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outMsg.len = 8;
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outMsg.buf[0] = 0x49;
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outMsg.buf[1] = 0x0E;
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outMsg.buf[2] = lowByte(uint16_t(temp_RPM)); //lsb RPM
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outMsg.buf[3] = highByte(uint16_t(temp_RPM)); //msb RPM
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outMsg.buf[4] = 0x0E;
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outMsg.buf[5] = 0x00;
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outMsg.buf[6] = 0x1B;
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outMsg.buf[7] = 0x0E;
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break;
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case 0x5A0: //VSS for VW instrument cluster
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uint16_t temp_VSS;
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temp_VSS = currentStatus.vss * 133; //VSS conversion
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outMsg.id = DashMessageID;
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outMsg.len = 8;
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outMsg.buf[0] = 0xFF;
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outMsg.buf[1] = lowByte(temp_VSS);
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outMsg.buf[2] = highByte(temp_VSS);
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outMsg.buf[3] = 0x00;
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outMsg.buf[4] = 0x00;
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outMsg.buf[5] = 0x00;
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outMsg.buf[6] = 0x00;
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outMsg.buf[7] = 0xAD;
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break;
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default:
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break;
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}
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}
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void can_Command(void)
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{
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if ( (inMsg.id == uint16_t(configPage9.obd_address + TS_CAN_OFFSET)) || (inMsg.id == 0x7DF))
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{
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// The address is the speeduino specific ecu canbus address
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// or the 0x7df(2015 dec) broadcast address
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if (inMsg.buf[1] == 0x01)
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{
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// PID mode 0 , realtime data stream
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obd_response(inMsg.buf[1], inMsg.buf[2], 0); // get the obd response based on the data in byte2
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outMsg.id = (0x7E8); //((configPage9.obd_address + 0x100)+ 8);
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Can0.write(outMsg); // send the 8 bytes of obd data
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}
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if (inMsg.buf[1] == 0x22)
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{
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// PID mode 22h , custom mode , non standard data
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obd_response(inMsg.buf[1], inMsg.buf[2], inMsg.buf[3]); // get the obd response based on the data in byte2
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outMsg.id = (0x7E8); //configPage9.obd_address+8);
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Can0.write(outMsg); // send the 8 bytes of obd data
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}
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}
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if (inMsg.id == uint16_t(configPage9.obd_address + TS_CAN_OFFSET))
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{
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// The address is only the speeduino specific ecu canbus address
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if (inMsg.buf[1] == 0x09)
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{
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// PID mode 9 , vehicle information request
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if (inMsg.buf[2] == 02)
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{
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//send the VIN number , 17 char long VIN sent in 5 messages.
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}
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else if (inMsg.buf[2] == 0x0A)
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{
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//code 20: send 20 ascii characters with ECU name , "ECU -SpeeduinoXXXXXX" , change the XXXXXX ONLY as required.
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}
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}
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}
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}
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// This routine builds the realtime data into packets that the obd requesting device can understand. This is only used by teensy and stm32 with onboard canbus
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void obd_response(uint8_t PIDmode, uint8_t requestedPIDlow, uint8_t requestedPIDhigh)
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{
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//only build the PID if the mcu has onboard/attached can
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uint16_t obdcalcA; //used in obd calcs
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uint16_t obdcalcB; //used in obd calcs
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uint16_t obdcalcC; //used in obd calcs
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uint16_t obdcalcD; //used in obd calcs
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uint32_t obdcalcE32; //used in calcs
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uint32_t obdcalcF32; //used in calcs
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uint16_t obdcalcG16; //used in calcs
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uint16_t obdcalcH16; //used in calcs
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outMsg.len = 8;
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if (PIDmode == 0x01)
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{
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switch (requestedPIDlow)
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{
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case 0: //PID-0x00 PIDs supported 01-20
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outMsg.buf[0] = 0x06; // sending 6 bytes
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outMsg.buf[1] = 0x41; // Same as query, except that 40h is added to the mode value. So:41h = show current data ,42h = freeze frame ,etc.
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outMsg.buf[2] = 0x00; // PID code
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outMsg.buf[3] = 0x08; //B0000 1000 1-8
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outMsg.buf[4] = B01111110; //9-16
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outMsg.buf[5] = B10100000; //17-24
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outMsg.buf[6] = B00010001; //17-32
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outMsg.buf[7] = B00000000;
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break;
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case 5: //PID-0x05 Engine coolant temperature , range is -40 to 215 deg C , formula == A-40
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outMsg.buf[0] = 0x03; // sending 3 bytes
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outMsg.buf[1] = 0x41; // Same as query, except that 40h is added to the mode value. So:41h = show current data ,42h = freeze frame ,etc.
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outMsg.buf[2] = 0x05; // pid code
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outMsg.buf[3] = (byte)(currentStatus.coolant + CALIBRATION_TEMPERATURE_OFFSET); //the data value A
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outMsg.buf[4] = 0x00; //the data value B which is 0 as unused
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outMsg.buf[5] = 0x00;
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outMsg.buf[6] = 0x00;
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outMsg.buf[7] = 0x00;
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break;
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case 10: // PID-0x0A , Fuel Pressure (Gauge) , range is 0 to 765 kPa , formula == A / 3)
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uint16_t temp_fuelpressure;
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// Fuel pressure is in PSI. PSI to kPa is 6.89475729, but that needs to be divided by 3 for OBD2 formula. So 2.298.... 2.3 is close enough, so that in fraction.
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temp_fuelpressure = (currentStatus.fuelPressure * 23) / 10;
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outMsg.buf[0] = 0x03; // sending 3 byte
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outMsg.buf[1] = 0x41; //
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outMsg.buf[2] = 0x0A; // pid code
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outMsg.buf[3] = lowByte(temp_fuelpressure);
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outMsg.buf[4] = 0x00;
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outMsg.buf[5] = 0x00;
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outMsg.buf[6] = 0x00;
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outMsg.buf[7] = 0x00;
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break;
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case 11: // PID-0x0B , MAP , range is 0 to 255 kPa , Formula == A
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outMsg.buf[0] = 0x03; // sending 3 byte
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outMsg.buf[1] = 0x41; //
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outMsg.buf[2] = 0x0B; // pid code
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outMsg.buf[3] = lowByte(currentStatus.MAP); // absolute map
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outMsg.buf[4] = 0x00;
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outMsg.buf[5] = 0x00;
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outMsg.buf[6] = 0x00;
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outMsg.buf[7] = 0x00;
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break;
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case 12: // PID-0x0C , RPM , range is 0 to 16383.75 rpm , Formula == 256A+B / 4
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uint16_t temp_revs;
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temp_revs = currentStatus.RPM << 2 ; //
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outMsg.buf[0] = 0x04; // sending 4 byte
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outMsg.buf[1] = 0x41; //
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outMsg.buf[2] = 0x0C; // pid code
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outMsg.buf[3] = highByte(temp_revs); //obdcalcB; A
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outMsg.buf[4] = lowByte(temp_revs); //obdcalcD; B
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outMsg.buf[5] = 0x00;
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outMsg.buf[6] = 0x00;
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outMsg.buf[7] = 0x00;
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break;
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case 13: //PID-0x0D , Vehicle speed , range is 0 to 255 km/h , formula == A
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outMsg.buf[0] = 0x03; // sending 3 bytes
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outMsg.buf[1] = 0x41; // Same as query, except that 40h is added to the mode value. So:41h = show current data ,42h = freeze frame ,etc.
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outMsg.buf[2] = 0x0D; // pid code
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outMsg.buf[3] = lowByte(currentStatus.vss); // A
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outMsg.buf[4] = 0x00; // B
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outMsg.buf[5] = 0x00;
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outMsg.buf[6] = 0x00;
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outMsg.buf[7] = 0x00;
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break;
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case 14: //PID-0x0E , Ignition Timing advance, range is -64 to 63.5 BTDC , formula == A/2 - 64
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int8_t temp_timingadvance;
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temp_timingadvance = ((currentStatus.advance + 64) << 1);
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//obdcalcA = ((timingadvance + 64) <<1) ; //((timingadvance + 64) *2)
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outMsg.buf[0] = 0x03; // sending 3 bytes
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outMsg.buf[1] = 0x41; // Same as query, except that 40h is added to the mode value. So:41h = show current data ,42h = freeze frame ,etc.
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outMsg.buf[2] = 0x0E; // pid code
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outMsg.buf[3] = temp_timingadvance; // A
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outMsg.buf[4] = 0x00; // B
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outMsg.buf[5] = 0x00;
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outMsg.buf[6] = 0x00;
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outMsg.buf[7] = 0x00;
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break;
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case 15: //PID-0x0F , Inlet air temperature , range is -40 to 215 deg C, formula == A-40
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outMsg.buf[0] = 0x03; // sending 3 bytes
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outMsg.buf[1] = 0x41; // Same as query, except that 40h is added to the mode value. So:41h = show current data ,42h = freeze frame ,etc.
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outMsg.buf[2] = 0x0F; // pid code
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outMsg.buf[3] = (byte)(currentStatus.IAT + CALIBRATION_TEMPERATURE_OFFSET); // A
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outMsg.buf[4] = 0x00; // B
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outMsg.buf[5] = 0x00;
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outMsg.buf[6] = 0x00;
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outMsg.buf[7] = 0x00;
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break;
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case 17: // PID-0x11 ,
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// TPS percentage, range is 0 to 100 percent, formula == 100/256 A
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uint16_t temp_tpsPC;
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temp_tpsPC = currentStatus.TPS;
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obdcalcA = (temp_tpsPC <<8) / 200; // (tpsPC *256) /200;
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if (obdcalcA > 255){ obdcalcA = 255;}
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outMsg.buf[0] = 0x03; // sending 3 bytes
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outMsg.buf[1] = 0x41; // Same as query, except that 40h is added to the mode value. So:41h = show current data ,42h = freeze frame ,etc.
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outMsg.buf[2] = 0x11; // pid code
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outMsg.buf[3] = obdcalcA; // A
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outMsg.buf[4] = 0x00; // B
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outMsg.buf[5] = 0x00;
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outMsg.buf[6] = 0x00;
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outMsg.buf[7] = 0x00;
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break;
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case 19: //PID-0x13 , oxygen sensors present, A0-A3 == bank1 , A4-A7 == bank2 ,
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uint16_t O2present;
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O2present = B00000011 ; //realtimebufferA[24]; TEST VALUE !!!!!
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outMsg.buf[0] = 0x03; // sending 3 bytes
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outMsg.buf[1] = 0x41; // Same as query, except that 40h is added to the mode value. So:41h = show current data ,42h = freeze frame ,etc.
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outMsg.buf[2] = 0x13; // pid code
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outMsg.buf[3] = O2present ; // A
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outMsg.buf[4] = 0x00; // B
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outMsg.buf[5] = 0x00;
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outMsg.buf[6] = 0x00;
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outMsg.buf[7] = 0x00;
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break;
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case 28: // PID-0x1C obd standard
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uint16_t obdstandard;
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obdstandard = 7; // This is OBD2 / EOBD
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outMsg.buf[0] = 0x03; // sending 3 bytes
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outMsg.buf[1] = 0x41; // Same as query, except that 40h is added to the mode value. So:41h = show current data ,42h = freeze frame ,etc.
|
|
outMsg.buf[2] = 0x1C; // pid code
|
|
outMsg.buf[3] = obdstandard; // A
|
|
outMsg.buf[4] = 0x00; // B
|
|
outMsg.buf[5] = 0x00;
|
|
outMsg.buf[6] = 0x00;
|
|
outMsg.buf[7] = 0x00;
|
|
break;
|
|
|
|
case 32: // PID-0x20 PIDs supported [21-40]
|
|
outMsg.buf[0] = 0x06; // sending 4 bytes
|
|
outMsg.buf[1] = 0x41; // Same as query, except that 40h is added to the mode value. So:41h = show current data ,42h = freeze frame ,etc.
|
|
outMsg.buf[2] = 0x20; // pid code
|
|
outMsg.buf[3] = B00011000; // 33-40
|
|
outMsg.buf[4] = B00000000; //41 - 48
|
|
outMsg.buf[5] = B00100000; //49-56
|
|
outMsg.buf[6] = B00000001; //57-64
|
|
outMsg.buf[7] = 0x00;
|
|
break;
|
|
|
|
case 36: // PID-0x24 O2 sensor2, AB: fuel/air equivalence ratio, CD: voltage , Formula == (2/65536)(256A +B) , 8/65536(256C+D) , Range is 0 to <2 and 0 to >8V
|
|
//uint16_t O2_1e ;
|
|
//int16_t O2_1v ;
|
|
obdcalcH16 = configPage2.stoich/10 ; // configPage2.stoich(is *10 so 14.7 is 147)
|
|
obdcalcE32 = currentStatus.O2/10; // afr(is *10 so 25.5 is 255) , needs a 32bit else will overflow
|
|
obdcalcF32 = (obdcalcE32<<8) / obdcalcH16; //this is same as (obdcalcE32/256) / obdcalcH16 . this calculates the ratio
|
|
obdcalcG16 = (obdcalcF32 *32768)>>8;
|
|
obdcalcA = highByte(obdcalcG16);
|
|
obdcalcB = lowByte(obdcalcG16);
|
|
|
|
obdcalcF32 = currentStatus.O2ADC ; //o2ADC is wideband volts to send *100
|
|
obdcalcG16 = (obdcalcF32 *20971)>>8;
|
|
obdcalcC = highByte(obdcalcG16);
|
|
obdcalcD = lowByte(obdcalcG16);
|
|
|
|
outMsg.buf[0] = 0x06; // sending 4 bytes
|
|
outMsg.buf[1] = 0x41; // Same as query, except that 40h is added to the mode value. So:41h = show current data ,42h = freeze frame ,etc.
|
|
outMsg.buf[2] = 0x24; // pid code
|
|
outMsg.buf[3] = obdcalcA; // A
|
|
outMsg.buf[4] = obdcalcB; // B
|
|
outMsg.buf[5] = obdcalcC; // C
|
|
outMsg.buf[6] = obdcalcD; // D
|
|
outMsg.buf[7] = 0x00;
|
|
break;
|
|
|
|
case 37: //O2 sensor2, AB fuel/air equivalence ratio, CD voltage , 2/65536(256A +B) ,8/65536(256C+D) , range is 0 to <2 and 0 to >8V
|
|
//uint16_t O2_2e ;
|
|
//int16_t O2_2V ;
|
|
obdcalcH16 = configPage2.stoich/10 ; // configPage2.stoich(is *10 so 14.7 is 147)
|
|
obdcalcE32 = currentStatus.O2_2/10; // afr(is *10 so 25.5 is 255) , needs a 32bit else will overflow
|
|
obdcalcF32 = (obdcalcE32<<8) / obdcalcH16; //this is same as (obdcalcE32/256) / obdcalcH16 . this calculates the ratio
|
|
obdcalcG16 = (obdcalcF32 *32768)>>8;
|
|
obdcalcA = highByte(obdcalcG16);
|
|
obdcalcB = lowByte(obdcalcG16);
|
|
|
|
obdcalcF32 = currentStatus.O2_2ADC ; //o2_2ADC is wideband volts to send *100
|
|
obdcalcG16 = (obdcalcF32 *20971)>>8;
|
|
obdcalcC = highByte(obdcalcG16);
|
|
obdcalcD = lowByte(obdcalcG16);
|
|
|
|
outMsg.buf[0] = 0x06; // sending 4 bytes
|
|
outMsg.buf[1] = 0x41; // Same as query, except that 40h is added to the mode value. So:41h = show current data ,42h = freeze frame ,etc.
|
|
outMsg.buf[2] = 0x25; // pid code
|
|
outMsg.buf[3] = obdcalcA; // A
|
|
outMsg.buf[4] = obdcalcB; // B
|
|
outMsg.buf[5] = obdcalcC; // C
|
|
outMsg.buf[6] = obdcalcD; // D
|
|
outMsg.buf[7] = 0x00;
|
|
break;
|
|
|
|
case 51: //PID-0x33 Absolute Barometric pressure , range is 0 to 255 kPa , formula == A
|
|
outMsg.buf[0] = 0x03; // sending 3 bytes
|
|
outMsg.buf[1] = 0x41; // Same as query, except that 40h is added to the mode value. So:41h = show current data ,42h = freeze frame ,etc.
|
|
outMsg.buf[2] = 0x33; // pid code
|
|
outMsg.buf[3] = currentStatus.baro ; // A
|
|
outMsg.buf[4] = 0x00; // B which is 0 as unused
|
|
outMsg.buf[5] = 0x00;
|
|
outMsg.buf[6] = 0x00;
|
|
outMsg.buf[7] = 0x00;
|
|
break;
|
|
|
|
case 64: // PIDs supported [41-60]
|
|
outMsg.buf[0] = 0x06; // sending 4 bytes
|
|
outMsg.buf[1] = 0x41; // Same as query, except that 40h is added to the mode value. So:41h = show current data ,42h = freeze frame ,etc.
|
|
outMsg.buf[2] = 0x40; // pid code
|
|
outMsg.buf[3] = B01000100; // 65-72dec
|
|
outMsg.buf[4] = B00000000; // 73-80
|
|
outMsg.buf[5] = B01000000; // 81-88
|
|
outMsg.buf[6] = B00010000; // 89-96
|
|
outMsg.buf[7] = 0x00;
|
|
break;
|
|
|
|
case 66: //control module voltage, 256A+B / 1000 , range is 0 to 65.535v
|
|
uint16_t temp_ecuBatt;
|
|
temp_ecuBatt = currentStatus.battery10; // create a 16bit temp variable to do the math
|
|
obdcalcA = temp_ecuBatt*100; // should be *1000 but ecuBatt is already *10
|
|
outMsg.buf[0] = 0x04; // sending 4 bytes
|
|
outMsg.buf[1] = 0x41; // Same as query, except that 40h is added to the mode value. So:41h = show current data ,42h = freeze frame ,etc.
|
|
outMsg.buf[2] = 0x42; // pid code
|
|
outMsg.buf[3] = highByte(obdcalcA) ; // A
|
|
outMsg.buf[4] = lowByte(obdcalcA) ; // B
|
|
outMsg.buf[5] = 0x00;
|
|
outMsg.buf[6] = 0x00;
|
|
outMsg.buf[7] = 0x00;
|
|
break;
|
|
|
|
case 70: //PID-0x46 Ambient Air Temperature , range is -40 to 215 deg C , formula == A-40
|
|
uint16_t temp_ambientair;
|
|
temp_ambientair = 11; // TEST VALUE !!!!!!!!!!
|
|
obdcalcA = temp_ambientair + 40 ; // maybe later will be (byte)(currentStatus.AAT + CALIBRATION_TEMPERATURE_OFFSET)
|
|
outMsg.buf[0] = 0x03; // sending 3 byte
|
|
outMsg.buf[1] = 0x41; // Same as query, except that 40h is added to the mode value. So:41h = show current data ,42h = freeze frame ,etc.
|
|
outMsg.buf[2] = 0x46; // pid code
|
|
outMsg.buf[3] = obdcalcA; // A
|
|
outMsg.buf[4] = 0x00;
|
|
outMsg.buf[5] = 0x00;
|
|
outMsg.buf[6] = 0x00;
|
|
outMsg.buf[7] = 0x00;
|
|
break;
|
|
|
|
case 82: //PID-0x52 Ethanol fuel % , range is 0 to 100% , formula == (100/255)A
|
|
outMsg.buf[0] = 0x03; // sending 3 byte
|
|
outMsg.buf[1] = 0x41; // Same as query, except that 40h is added to the mode value. So:41h = show current data ,42h = freeze frame ,etc.
|
|
outMsg.buf[2] = 0x52; // pid code
|
|
outMsg.buf[3] = currentStatus.ethanolPct; // A
|
|
outMsg.buf[4] = 0x00;
|
|
outMsg.buf[5] = 0x00;
|
|
outMsg.buf[6] = 0x00;
|
|
outMsg.buf[7] = 0x00;
|
|
break;
|
|
|
|
case 92: //PID-0x5C Engine oil temperature , range is -40 to 210 deg C , formula == A-40
|
|
uint16_t temp_engineoiltemp;
|
|
temp_engineoiltemp = 40; // TEST VALUE !!!!!!!!!!
|
|
obdcalcA = temp_engineoiltemp+40 ; // maybe later will be (byte)(currentStatus.EOT + CALIBRATION_TEMPERATURE_OFFSET)
|
|
outMsg.buf[0] = 0x03; // sending 3 byte
|
|
outMsg.buf[1] = 0x41; // Same as query, except that 40h is added to the mode value. So:41h = show current data ,42h = freeze frame ,etc.
|
|
outMsg.buf[2] = 0x5C; // pid code
|
|
outMsg.buf[3] = obdcalcA ; // A
|
|
outMsg.buf[4] = 0x00;
|
|
outMsg.buf[5] = 0x00;
|
|
outMsg.buf[6] = 0x00;
|
|
outMsg.buf[7] = 0x00;
|
|
break;
|
|
|
|
case 96: //PIDs supported [61-80]
|
|
outMsg.buf[0] = 0x06; // sending 4 bytes
|
|
outMsg.buf[1] = 0x41; // Same as query, except that 40h is added to the mode value. So:41h = show current data ,42h = freeze frame ,etc.
|
|
outMsg.buf[2] = 0x60; // pid code
|
|
outMsg.buf[3] = 0x00; // B0000 0000
|
|
outMsg.buf[4] = 0x00; // B0000 0000
|
|
outMsg.buf[5] = 0x00; // B0000 0000
|
|
outMsg.buf[6] = 0x00; // B0000 0000
|
|
outMsg.buf[7] = 0x00;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
else if (PIDmode == 0x22)
|
|
{
|
|
// these are custom PID not listed in the SAE std .
|
|
if (requestedPIDhigh == 0x77)
|
|
{
|
|
if ((requestedPIDlow >= 0x01) && (requestedPIDlow <= 0x10))
|
|
{
|
|
// PID 0x01 (1 dec) to 0x10 (16 dec)
|
|
// Aux data / can data IN Channel 1 - 16
|
|
outMsg.buf[0] = 0x06; // sending 8 bytes
|
|
outMsg.buf[1] = 0x62; // Same as query, except that 40h is added to the mode value. So:62h = custom mode
|
|
outMsg.buf[2] = requestedPIDlow; // PID code
|
|
outMsg.buf[3] = 0x77; // PID code
|
|
outMsg.buf[4] = lowByte(currentStatus.canin[requestedPIDlow-1]); // A
|
|
outMsg.buf[5] = highByte(currentStatus.canin[requestedPIDlow-1]); // B
|
|
outMsg.buf[6] = 0x00; // C
|
|
outMsg.buf[7] = 0x00; // D
|
|
}
|
|
}
|
|
// this allows to get any value out of current status array.
|
|
else if (requestedPIDhigh == 0x78)
|
|
{
|
|
int16_t tempValue;
|
|
tempValue = ProgrammableIOGetData(requestedPIDlow);
|
|
outMsg.buf[0] = 0x06; // sending 6 bytes
|
|
outMsg.buf[1] = 0x62; // Same as query, except that 40h is added to the mode value. So:62h = custom mode
|
|
outMsg.buf[2] = requestedPIDlow; // PID code
|
|
outMsg.buf[3] = 0x78; // PID code
|
|
outMsg.buf[4] = lowByte(tempValue); // A
|
|
outMsg.buf[5] = highByte(tempValue); // B
|
|
outMsg.buf[6] = 0x00;
|
|
outMsg.buf[7] = 0x00;
|
|
}
|
|
}
|
|
}
|
|
|
|
void readAuxCanBus()
|
|
{
|
|
for (int i = 0; i < 16; i++)
|
|
{
|
|
uint16_t channelAddress = (configPage9.caninput_source_can_address[i] + TS_CAN_OFFSET);
|
|
if (inMsg.id == channelAddress ) //Filters frame ID
|
|
{
|
|
|
|
if (!BIT_CHECK(configPage9.caninput_source_num_bytes, i))
|
|
{
|
|
// Gets the one-byte value from the Data Field.
|
|
currentStatus.canin[i] = inMsg.buf[configPage9.caninput_source_start_byte[i]];
|
|
}
|
|
else
|
|
{
|
|
if (configPage9.caninputEndianess == 1)
|
|
{
|
|
//Gets the two-byte value from the Data Field in Litlle Endian.
|
|
currentStatus.canin[i] = ((inMsg.buf[configPage9.caninput_source_start_byte[i]]) | (inMsg.buf[configPage9.caninput_source_start_byte[i] + 1] << 8));
|
|
}
|
|
else
|
|
{
|
|
//Gets the two-byte value from the Data Field in Big Endian.
|
|
currentStatus.canin[i] = ((inMsg.buf[configPage9.caninput_source_start_byte[i]] << 8) | (inMsg.buf[configPage9.caninput_source_start_byte[i] + 1]));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif |