Imports System.IO.Ports
Public Class J2534EmulatorForm
Dim serialPort As SerialPort
Private Sub J2534EmulatorForm_Load(sender As Object, e As EventArgs) Handles MyBase.Load
' Initialize the serial port
serialPort = New SerialPort()
serialPort.PortName = "COM1" ' Set the appropriate COM port for your system
serialPort.BaudRate = 115200 ' Set the baud rate to match your J2534 device
serialPort.Parity = Parity.None
serialPort.DataBits = 8
serialPort.StopBits = StopBits.One
serialPort.Handshake = Handshake.None
serialPort.ReadTimeout = 500
serialPort.WriteTimeout = 500
' Open the serial port
Try
serialPort.Open()
serialPort.DataReceived += New SerialDataReceivedEventHandler(AddressOf SerialPort_DataReceived)
Catch ex As Exception
MessageBox.Show("Failed to open serial port: " & ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error)
End Try
End Sub
Private Sub btnSend_Click(sender As Object, e As EventArgs) Handles btnSend.Click
' Get the VIN number and ECU address from the text boxes
Dim vinNumber As String = txtVinNumber.Text.Trim()
Dim ecuAddress As String = txtEcuAddress.Text.Trim()
' Format the message to send over the CAN bus
Dim message As String = "VIN:" & vinNumber & ";ECU:" & ecuAddress & ";"
' Send the message over the CAN bus
SendCanMessage(message)
End Sub
Private Sub SendCanMessage(message As String)
' Send the message over the serial port
Try
If serialPort.IsOpen Then
serialPort.WriteLine(message)
MessageBox.Show("Message sent: " & message, "Success", MessageBoxButtons.OK, MessageBoxIcon.Information)
Else
MessageBox.Show("Serial port is not open.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error)
End If
Catch ex As Exception
MessageBox.Show("Failed to send message: " & ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error)
End Try
End Sub
Private Sub SerialPort_DataReceived(sender As Object, e As SerialDataReceivedEventArgs)
' Handle received data from the serial port
Try
' Read the data from the serial port
Dim data As String = serialPort.ReadLine()
' Process the received data
If data.StartsWith("ACK:") Then
' Handle acknowledgement message
MessageBox.Show("Acknowledgement received: " & data, "Success", MessageBoxButtons.OK, MessageBoxIcon.Information)
ElseIf data.StartsWith("NACK:") Then
' Handle negative acknowledgement message
MessageBox.Show("Negative acknowledgement received: " & data, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error)
Else
' Handle other received data
' Process the data as needed
End If
Catch ex As Exception
MessageBox.Show("Failed to read data from serial port: " & ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error)
End Try
End Sub
Private Sub J2534EmulatorForm_FormClosing(sender As Object, e As FormClosingEventArgs) Handles MyBase.FormClosing
' Close the serial port when the form is closed
If serialPort.IsOpen Then
serialPort.Close()
End If
End Sub
End Class
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