Monitor CAN Frames between Two MCUs via CANoe

Introduction

In this project, we monitor the CAN frames between Two MCUs via CANoe.

ECU1

It sends Engine_CMD_ACC to ECU2 and this message has ID 0x030 and we send it every one second. It recives Speed_Senor_Value from ECU2.

ECU2

It recives ACC_CMD from ECU1 then increase the speed if the command is acceleration and decrease the speed if the command is not acceleation. It sends Speed_Senor_Frame to ECU1 and this message has ID 0x3AB.

Steps

Configure Simulation Setup

In this step, we add CAN Network and add Nodes for ECU1 & ECU2 and we add DataBase files which in it we define messages and signals.

Write CAPL Script for ECU1

/*@!Encoding:65001*/
includes
{
  
}

variables
{
  msTimer Send_Timer;
  const int Send_Timer_Period = 1000;
  
  message ACC_CMD_Message ACC_CMD;
  int ACC = 0;
}

on start
{
  write("----> Starting ECU1 <----");
  write("Eng. Mostafa Edrees --> Case Study 4 --> Learn-In-Depth");
  setTimer(Send_Timer, Send_Timer_Period);
}

on message Speed_Value_Message
{
  write("ECU1 received speed value from ECU2"); 
}

on timer Send_Timer
{
  write("Eng. Mostafa Edrees --> Case Study 4 --> Learn-In-Depth");
  
  //ACC ^= 1;
  //ACC_CMD.ACC_State.phys = ACC;
  //write("ECU1 send ACC state to ECU2");
  //output(ACC_CMD);
  
  ACC = @sysvar::ACC_System_Variable;
  ACC_CMD.ACC_State.phys = ACC;
  write("ECU1 send ACC state to ECU2");
  output(ACC_CMD);
  
  setTimer(Send_Timer, Send_Timer_Period);
}

Write CAPL Script for ECU2

/*@!Encoding:65001*/
includes
{
  
}

variables
{
  message Speed_Value_Message Speed_Val;
  int Speed = 0;
}

on start
{
  write("----> Starting ECU2 <----");
}

on message ACC_CMD_Message
{
  write("ECU2 received ACC State From ECU1");
  if(this.ACC_State.phys == 1)  //Acceleration on
  {
    Speed += 10;
    if(Speed >= 255)
    {
      Speed = 255;
    }
  }
  else  //Acceleration off
  {
    Speed -= 10;
    if(Speed <= 0)
    {
      Speed = 0;
    }
  }
  
  Speed_Val.Speed_Value.phys = Speed;
  write("ECU2 send speed value to ECU1");
  output(Speed_Val);
}

Create Panel Design

In this step, we create the GUI of the Meter and the Button of Acceleratation.

Running Simulation on CANoe

Messages between Two MCUs

Tracing when ACC is On

Tracing when ACC is Off

View of Graph when we increase/decrease speed

Final View

Running_Simulation_on_CANoe.mov