Microsoft Visual C# LIN Simulation Program

private void Form1_Load(object sender, EventArgs e)
{
    // 1) Explicitly initialize array members
    MasterSims = new StMPXLINMasterSim[2];
    for (int i = 0; i < 2; i++) MasterSims[i].Item = new StMPXLINMasterSimItem[64];
    SlaveSim.Item = new StMPXLINSlaveSimItem[64];
    Logs = new StMPXLINLog[1024];
    for (int i = 0; i < 1024; i++) Logs[i].Data = new byte[64];
}

private void StartButton_Click(object sender, EventArgs e)
{
    // 2) Open
    var info = new StMPXDeviceInfo[1];
    byte count = 0;
    int ret = MPXCtrl.Open(ref info, 1, ref count);
    if (ret != MPXConst.E_OK || count == 0) return;
    Serial = info[0].Serial;

    // 3) Set LIN parameters
    var p = new StMPXLINParam();
    p.Mode = MPXConst.MPX_LIN_MODE_MONITOR;
    if (radioButton2.Checked) p.Mode = MPXConst.MPX_LIN_MODE_MASTER;
    else if (radioButton3.Checked) p.Mode = MPXConst.MPX_LIN_MODE_SLAVE;
    p.Revision = MPXConst.MPX_LIN_REV_21;
    p.Baudrate = 19200;
    p.IDSetting = new StMPXLINIDSetting[64];
    ret = MPXCtrl.LINSetParam(Serial, ref p);
    if (ret != MPXConst.E_OK) return;

    // 4) Set log acquisition mode
    ret = MPXCtrl.SetGetLogMode(Serial, MPXConst.MPX_INNERCH_LIN, MPXConst.MPX_GETLOGMODE_GETLOGAPI);
    if (ret != MPXConst.E_OK) return;

    // 5) Register mode-specific settings (Master/Slave) and start
    // Master: LINSetMasterSchedule + LINSetMasterSim + LINChangeMasterSchedule + LINSetStatus
    // Slave : LINSetSlaveSim
    ret = MPXCtrl.MonitorStart(Serial, MPXConst.MPX_SYNC_MASTER);
}

private void timer1_Tick(object sender, EventArgs e)
{
    // 6) Get logs
    ushort count = 0, num = 1024;
    byte over = 0;
    int ret = MPXCtrl.LINGetLogEx(Serial, ref Logs, num, ref count, ref over);
    if (ret != MPXConst.E_OK) timer1.Enabled = false;
}