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TD5EcuEmulator.ino
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TD5EcuEmulator.ino
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/*
Software serial multple serial test
Receives from the hardware serial, sends to software serial.
Receives from software serial, sends to hardware serial.
The circuit:
* RX is digital pin 2 (connect to TX of other device)
* TX is digital pin 3 (connect to RX of other device)
* A4 is SDA
* A5 is SDL
created back in the mists of time
modified 9 Apr 2012
by Tom Igoe
based on Mikal Hart's example
further modified by Ben Anderson March 2017
This example code is in the public domain.
*/
#define _DEBUG_
#define _LCD_
#include <SoftwareSerialEx.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#define ISORequestByteDelay 5
#define ISORequestDelay 55
#define ISOKeepAliveDelay 4000
#define ledPin 9
#define K_IN A3
#define K_OUT A2
#define I2C_ADDR 0x27 // Define I2C Address for controller
#define BACKLIGHT_PIN 3
#define En_pin 2
#define Rw_pin 1
#define Rs_pin 0
#define D4_pin 4
#define D5_pin 5
#define D6_pin 6
#define D7_pin 7
SoftwareSerialEx obdSerial(K_IN, K_OUT); // RX, TX
LiquidCrystal_I2C lcd(I2C_ADDR,En_pin,Rw_pin,Rs_pin,D4_pin,D5_pin,D6_pin,D7_pin);
int incomingByte = -1; // for incoming serial data
static long initTime;
static long interbyteTime;
static unsigned long lastReceivedPidTime = 0;
static boolean initStep;
byte dataResponse[32];
byte dataIndex;
static byte seed[2];
static byte key[2];
String line1 = " ";
String line2 = " ";
String line3 = " ";
byte dataStreamInit[] = {0x81, 0x13, 0xF7, 0x81, 0x0C};
byte dataStreamStartDiagSession[] = {0x02, 0x10, 0xA0, 0xB2};
byte dataStreamSeedRequest[] = {0x02, 0x27, 0x01, 0x2A};
byte dataStreamKeyResponse[] = {0x04, 0x27, 0x02, 0xF8, 0x8B, 0xB0};
byte dataStreamStartFuelling[] = {0x02, 0x21, 0x20, 0x43};
byte dataStreamFuelling1[] = {0x02, 0x21, 0x09, 0x2C}; // RPM
byte dataStreamFuelling2[] = {0x02, 0x21, 0x1A, 0x3D}; // TEMP
byte dataStreamFuelling3[] = {0x02, 0x21, 0x1C, 0x3F}; // MAP
byte dataStreamFuelling4[] = {0x02, 0x21, 0x10, 0x33}; // BATT VOLTAGE
byte dataStreamFuelling5[] = {0x02, 0x21, 0x23, 0x46}; // AAP - AMBIENT PRESSURE
byte dataStreamFuelling6[] = {0x02, 0x21, 0x0D, 0x30}; // SPEED
byte dataKeepAlive[] = { 0x02, 0x3E, 0x01, 0x41 }; // KEEP ALIVE
// RESULTS OF FOLLLWING TO BE SNIFFED
byte dataStreamFuelling7[] = { 0x02, 0x21, 0x1B, 0x3E }; // THROTTLE_POS
byte dataStreamFuelling8[] = { 0x03, 0x30, 0xC0, 0xF0, 0xE3 }; // IO_CONTROL
byte dataStreamFuelling9[] = { 0x02, 0x21, 0x40, 0x63 }; // INJ_BALANCE
byte dataStreamFuelling10[] = { 0x02, 0x21, 0x21, 0x44 }; // RPM_ERROR
byte dataStreamFuelling11[] = { 0x02, 0x21, 0x37, 0x5A }; // EGR_MOD
byte dataStreamFuelling12[] = { 0x02, 0x21, 0x38, 0x5B }; // ILT_MOD
byte dataStreamFuelling14[] = { 0x02, 0x21, 0x1D, 0x40 }; // Fuelling
//byte dataStreamFuelling13[] = { 0x02, 0x21, 0x38, 0x00 }; // TWG_MOD 0x38 no good: TODO find good one...
byte faultCodes[] = { 0x02, 0x21, 0x3B, 0x5E }; // FAULT_CODES
byte clearFaultCodes[] = { 0x14, 0x31, 0xDD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x22 }; // CLEAR_FAULTS
void remote_log_byte(byte b)
{
// say what you got:
if (b < 16)
{
Serial.print('0');
}
Serial.print(b, HEX);
Serial.print(' ');
}
void iso_write_byte(byte b)
{
obdSerial.write(b);
delay(ISORequestByteDelay); // ISO requires 5-20 ms delay between bytes.
}
byte iso_checksum(byte *data, byte len)
{
byte crc=0;
for(byte i=0; i<len; i++)
crc=crc+data[i];
return crc;
}
boolean iso_compare_data(byte *rcv, byte *cpm, byte len)
{
byte matched = 0;
for(byte i=0; i<len; i++)
{
if(rcv[i] == cpm[i] )
{
matched++;
}
}
if (matched == len)
return true;
else
return false;
}
void setup()
{
// Open serial communications and wait for port to open:
Serial.begin(57600);
// Initialize LCD
lcd.begin(20, 4);
lcd.setBacklightPin(BACKLIGHT_PIN,POSITIVE);
lcd.setBacklight(HIGH);
lcd.home (); // go home
// init pinouts
pinMode(ledPin, OUTPUT);
#ifdef _DEBUG_
Serial.println("Startup...");
#endif
#ifdef _LCD_
lcd.setCursor(0, 0); lcd.print("Startup... ");
lcd.setCursor(0, 1); lcd.print(" ");
lcd.setCursor(0, 2); lcd.print("TD5 ISO14230-1 ");
lcd.setCursor(0, 3); lcd.print("ECU Emulator ");
delay(500);
#endif
// set the data rate for the SoftwareSerial port
obdSerial.begin(10400);
long initTime = millis();
interbyteTime = 20;
dataIndex = 0;
initStep = true;
}
void scrollLcd(String text) {
line1=line2;
line2=line3;
line3=text;
lcd.setCursor(0,0);
lcd.print(line1);
lcd.setCursor(0,1);
lcd.print(line2);
lcd.setCursor(0,2);
lcd.print(line3);
}
void loop()
{
long currentTime = millis();
/////////////////////////////////////////////////////////
// Read OBD K-Line //
/////////////////////////////////////////////////////////
if (obdSerial.available() > 0)
{
// read the incoming byte:
incomingByte = obdSerial.read();
if( (initStep == false) ||
((incomingByte != 0x00) && (incomingByte != 0xFF)) )
{
#ifdef _DEBUG_
if (incomingByte < 16)
{
Serial.print('0');
}
Serial.print(incomingByte, HEX);
Serial.print(' ');
#else
delay(1);
#endif
digitalWrite(ledPin, HIGH);
if(dataIndex < 32)
dataResponse[dataIndex] = incomingByte;
dataIndex++;
}
initTime = currentTime + interbyteTime;
}
else
{
digitalWrite(ledPin, LOW);
}
/////////////////////////////////////////////////////////
// Catch end frame //
/////////////////////////////////////////////////////////
if ((currentTime >= initTime) && (incomingByte != -1))
{
#ifdef _DEBUG_
Serial.println();
#endif
incomingByte = -1;
initTime = currentTime + interbyteTime;
}
/////////////////////////////////////////////////////////
// Init //
/////////////////////////////////////////////////////////
//if (iso_compare_data(dataResponse, dataStreamInit, 5))
if((initStep == true) && (dataResponse[dataIndex - 1] == 0x0C))
{
// Send the message
byte dataStream[] = {0x03, 0xC1, 0x57, 0x8F, 0xAA};
for (byte i = 0; i < 5; i++)
{
iso_write_byte(dataStream[i]);
}
#ifdef _DEBUG_
Serial.print("03 C1 57 8F AA");
#endif
#ifdef _LCD_
scrollLcd("Init Request ");
#endif
for (byte i = 0; i < dataIndex; i++)
{
dataResponse[i] = 0x00;
}
lastReceivedPidTime = millis();
initStep = false;
dataIndex = 0;
}
/////////////////////////////////////////////////////////
// Diagnostic session //
/////////////////////////////////////////////////////////
if (iso_compare_data(dataResponse, dataStreamStartDiagSession, 4))
{
// Send the message
byte dataStream[] = {0x01, 0x50, 0x51};
for (byte i = 0; i < 3; i++)
{
iso_write_byte(dataStream[i]);
}
#ifdef _DEBUG_
Serial.print("01 50 51");
#endif
#ifdef _LCD_
scrollLcd("Start diag. request ");
#endif
for (byte i = 0; i < dataIndex; i++)
{
dataResponse[i] = 0x00;
}
lastReceivedPidTime = millis();
dataIndex = 0;
}
/////////////////////////////////////////////////////////
// Seed request //
/////////////////////////////////////////////////////////
if (iso_compare_data(dataResponse, dataStreamSeedRequest, 4)) // 0x02, 0x27, 0x01, 0x2A
{
// Send the message
byte dataStream[] = {0x04, 0x67, 0x01, 0x45, 0xDA, 0x8B};
for (byte i = 0; i < 6; i++)
{
iso_write_byte(dataStream[i]);
}
#ifdef _DEBUG_
Serial.print("04 67 01 45 DA 8B");
#endif
#ifdef _LCD_
scrollLcd("Seed request ");
#endif
for (byte i = 0; i < dataIndex; i++)
{
dataResponse[i] = 0x00;
}
lastReceivedPidTime = millis();
dataIndex = 0;
}
/////////////////////////////////////////////////////////
// Key //
/////////////////////////////////////////////////////////
if (iso_compare_data(dataResponse, dataStreamKeyResponse, 6)) // 0x04, 0x27, 0x02, 0xF8, 0x8B, 0xB0
{
// Send the message
byte dataStream[] = {0x02, 0x67, 0x02, 0x6B};
for (byte i = 0; i < 4; i++)
{
iso_write_byte(dataStream[i]);
}
#ifdef _DEBUG_
Serial.print("02 67 02 6B");
#endif
#ifdef _LCD_
scrollLcd("Key request ");
#endif
for (byte i = 0; i < dataIndex; i++)
{
dataResponse[i] = 0x00;
}
lastReceivedPidTime = millis();
dataIndex = 0;
}
/////////////////////////////////////////////////////////
// Start fuelling //
/////////////////////////////////////////////////////////
if (iso_compare_data(dataResponse, dataStreamStartFuelling, 4))
{
// Send the message
byte dataStream[] = {0x06, 0x61, 0x20, 0x9D, 0xBB, 0x0C, 0x84, 0x6F};
for (byte i = 0; i < 8; i++)
{
iso_write_byte(dataStream[i]);
}
#ifdef _DEBUG_
Serial.print("06 61 20 9D BB 0C 84 6F");
#endif
#ifdef _LCD_
scrollLcd("Start fuelling......");
#endif
for (byte i = 0; i < dataIndex; i++)
{
dataResponse[i] = 0x00;
}
lastReceivedPidTime = millis();
dataIndex = 0;
}
/////////////////////////////////////////////////////////
// Fuelling 1 RPM //
/////////////////////////////////////////////////////////
if (iso_compare_data(dataResponse, dataStreamFuelling1, 4))
{
// Send the message
byte dataStream[] = {0x04, 0x61, 0x09, 0x02, 0xED, 0x5D};
for (byte i = 0; i < 6; i++)
{
iso_write_byte(dataStream[i]);
}
#ifdef _DEBUG_
for(int i=0; i<6; i++)
remote_log_byte(dataStream[i]);
#endif
#ifdef _LCD_
scrollLcd("F1 - RPM request ");
#endif
for (byte i = 0; i < dataIndex; i++)
{
dataResponse[i] = 0x00;
}
lastReceivedPidTime = millis();
dataIndex = 0;
}
/////////////////////////////////////////////////////////
// Fuelling 2 TEMPS //
/////////////////////////////////////////////////////////
if (iso_compare_data(dataResponse, dataStreamFuelling2, 4))
{
// Send the message
byte dataStream[] = {0x12, 0x61, 0x1A, 0x0B, 0xCD, 0x09, 0xA9, 0x0B, 0xB9, 0x0A, 0x0A, 0x0B, 0xB9, 0x0A, 0x05, 0x0B, 0xC9, 0x09, 0xC1, 0x60};
for (byte i = 0; i < 20; i++)
{
iso_write_byte(dataStream[i]);
}
#ifdef _DEBUG_
for(int i=0; i<20; i++)
remote_log_byte(dataStream[i]);
#endif
#ifdef _LCD_
scrollLcd("F2 - Temps request ");
#endif
for (byte i = 0; i < dataIndex; i++)
{
dataResponse[i] = 0x00;
}
lastReceivedPidTime = millis();
dataIndex = 0;
}
/////////////////////////////////////////////////////////
// Fuelling 3 MAP //
/////////////////////////////////////////////////////////
if (iso_compare_data(dataResponse, dataStreamFuelling3, 4))
{
// Send the message
byte dataStream[] = {0x0A, 0x61, 0x1C, 0x27, 0x48, 0x27, 0x1C, 0x02, 0x61, 0x07, 0xE9, 0x8C};
for (byte i = 0; i < 12; i++)
{
iso_write_byte(dataStream[i]);
}
#ifdef _DEBUG_
for(int i=0; i<12; i++)
remote_log_byte(dataStream[i]);
#endif
#ifdef _LCD_
scrollLcd("F3 - MAP request ");
#endif
for (byte i = 0; i < dataIndex; i++)
{
dataResponse[i] = 0x00;
}
lastReceivedPidTime = millis();
dataIndex = 0;
}
/////////////////////////////////////////////////////////
// Fuelling 4 BATT VOLTAGE //
/////////////////////////////////////////////////////////
if (iso_compare_data(dataResponse, dataStreamFuelling4, 4))
{
// Send the message
byte dataStream[] = {0x06, 0x61, 0x10, 0x36, 0x69, 0x36, 0x99, 0xE5};
for (byte i = 0; i < 8; i++)
{
iso_write_byte(dataStream[i]);
}
#ifdef _DEBUG_
for(int i=0; i<8; i++)
remote_log_byte(dataStream[i]);
#endif
#ifdef _LCD_
scrollLcd("F4 - Bat V request ");
#endif
for (byte i = 0; i < dataIndex; i++)
{
dataResponse[i] = 0x00;
}
lastReceivedPidTime = millis();
dataIndex = 0;
}
/////////////////////////////////////////////////////////
// Fuelling 5 AAP //
/////////////////////////////////////////////////////////
if (iso_compare_data(dataResponse, dataStreamFuelling5, 4))
{
// Send the message
byte dataStream[] = {0x06, 0x61, 0x23, 0x27, 0x70, 0x27, 0x45, 0x8D};
for (byte i = 0; i < 8; i++)
{
iso_write_byte(dataStream[i]);
}
#ifdef _DEBUG_
for(int i=0; i<8; i++)
remote_log_byte(dataStream[i]);
#endif
#ifdef _LCD_
scrollLcd("F5 - AAP request ");
#endif
for (byte i = 0; i < dataIndex; i++)
{
dataResponse[i] = 0x00;
}
lastReceivedPidTime = millis();
dataIndex = 0;
}
/////////////////////////////////////////////////////////
// Fuelling 6 SPEED //
/////////////////////////////////////////////////////////
if (iso_compare_data(dataResponse, dataStreamFuelling6, 4))
{
// Send the message
byte dataStream[] = {0x03, 0x61, 0x0D, 0x27, 0x98}; // 39 MPH
for (byte i = 0; i < 5; i++)
{
iso_write_byte(dataStream[i]);
}
#ifdef _DEBUG_
for(int i=0; i<5; i++)
remote_log_byte(dataStream[i]);
#endif
#ifdef _LCD_
scrollLcd("F6 - Speed request ");
#endif
for (byte i = 0; i < dataIndex; i++)
{
dataResponse[i] = 0x00;
}
lastReceivedPidTime = millis();
dataIndex = 0;
}
/////////////////////////////////////////////////////////
// Fuelling 14 Fuelling //
/////////////////////////////////////////////////////////
if (iso_compare_data(dataResponse, dataStreamFuelling14, 4))
{
// DriverDemand = bytes [ 3]&[ 4] (referenced from 0)
// MafAirMass = bytes [ 5]&[ 6]
// MapAirMass = bytes [ 7]&[ 8]
// InjectionQuantity = bytes [ 9]&[10]
// AfRatio = bytes [11]&[12]
// TorqueLimit = bytes [13]&[14]
// SmokeLimit = bytes [15]&[16]
// IdleDemand = bytes [17]&[18]
// Send the message
//byte dataStream[] = {0x14, 0x61, 0x1D, 0xFE, 0x0C, 0x75, 0x30, 0x11, 0x3E, 0x00, 0x00, 0x00, 0x00, 0x0F, 0xA0, 0x00, 0x00, 0x15, 0x7C, 0x00, 0x28, 0xF8}; // 0xF8 last byte is CRC checksum
byte dataStream[] = {0x14, 0x61, 0x1D, 0xFE, 0x0C, 0x75, 0x30, 0x11, 0x3E, 0x50, 0x50, 0x00, 0x00, 0x0F, 0xA0, 0x00, 0x00, 0x15, 0x7C, 0x00, 0x28, 0x98}; // injection q set to 205
for (byte i = 0; i < 22; i++)
{
iso_write_byte(dataStream[i]);
}
#ifdef _DEBUG_
for(int i=0; i<22; i++)
remote_log_byte(dataStream[i]);
#endif
#ifdef _LCD_
scrollLcd("F14 - Fuelling request ");
#endif
for (byte i = 0; i < dataIndex; i++)
{
dataResponse[i] = 0x00;
}
lastReceivedPidTime = millis();
dataIndex = 0;
}
/////////////////////////////////////////////////////////
// Keep Alive //
/////////////////////////////////////////////////////////
if (iso_compare_data(dataResponse, dataKeepAlive, 4))
{
// Send the message
byte dataStream[] = {0x01, 0x7E, 0x7F};
for (byte i = 0; i < 3; i++)
{
iso_write_byte(dataStream[i]);
}
#ifdef _DEBUG_
for(int i=0; i<3; i++)
remote_log_byte(dataStream[i]);
#endif
#ifdef _LCD_
scrollLcd("Keep Alive request ");
#endif
for (byte i = 0; i < dataIndex; i++)
{
dataResponse[i] = 0x00;
}
lastReceivedPidTime = millis();
dataIndex = 0;
}
/////////////////////////////////////////////////////////
// No comm: back to init //
/////////////////////////////////////////////////////////
if(((millis() - lastReceivedPidTime) > 5000) && (initStep == false))
{
for (byte i = 0; i < dataIndex; i++)
{
dataResponse[i] = 0x00;
}
initStep = true;
dataIndex = 0;
#ifdef _DEBUG_
Serial.println("No communication: back to init");
#endif
#ifdef _LCD_
scrollLcd("No comm: init. ");
#endif
}
}