/// <summary>
/// 设置ID过滤，若不需要过滤，则无需使用设置此函数，使用不安全代码，返回0表示OK
/// </summary>
/// <param name="filterMode"></param>
/// <param name="startId"></param>
/// <param name="endId"></param>
/// <returns></returns>
unsafe private bool SetCanIndexFilter(uint canIndex)
{
UInt32 filterMode = 2; //禁用过滤
UInt32 startId = 0x01; //起始id
UInt32 endId = 0xff; //结束id
if (filterMode == 2) //不设置滤波
{
return(true);
}
bool result = true;
VCI_FILTER_RECORD filterRecord = new VCI_FILTER_RECORD();
filterRecord.ExtFrame = filterMode; //0标准帧滤波，1扩展帧滤波
filterRecord.Start = startId;
filterRecord.End = endId;
//填充滤波表格
if (VCI_SetReference((uint)m_CanType, m_DeviceIndex, canIndex, 1, (byte *)&filterRecord) == 0)
{
result = false;
return(result);
}
//按照表格设置滤波
if (VCI_SetReference((uint)m_CanType, m_DeviceIndex, canIndex, 2, null) == 0)
{
result = false;
return(result);
}
return(result);
}
/// <summary>
/// 启动CAN的端口号
/// </summary>
/// <param name="id"></param>
unsafe public Int16 CAN_Open(UInt32 id)
{
if (ConnectStatus == 0 || 1 == OpenStatus)
{
return(-1);
}
//USB-E-U 代码
UInt32 baud = GCanBrTab[2];
if (VCI_SetReference(m_devtype, m_devind, id, 0, (byte *)&baud) != STATUS_OK)
{
MessageBox.Show("设置波特率错误，打开设备0失败!", "错误", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
VCI_CloseDevice(m_devtype, m_devind);
return(-1);
}
//滤波设置
//////////////////////////////////////////////////////////////////////////
VCI_INIT_CONFIG config = new VCI_INIT_CONFIG();
config.AccCode = 00000000; // System.Convert.ToUInt32("0x" + textBox_AccCode.Text, 16);
config.AccMask = 0xFFFFFFFF; // System.Convert.ToUInt32("0x" + textBox_AccMask.Text, 16);
config.Timing0 = 0; // System.Convert.ToByte("0x" + textBox_Time0.Text, 16);
config.Timing1 = 14; // System.Convert.ToByte("0x" + textBox_Time1.Text, 16);
config.Filter = 1; // 单滤波 (Byte)comboBox_Filter.SelectedIndex;
config.Mode = 0; //正常模式 (Byte)comboBox_Mode.SelectedIndex;
VCI_InitCAN(m_devtype, m_devind, id, ref config);
//////////////////////////////////////////////////////////////////////////
Int32 filterMode = 2; // comboBox_e_u_Filter.SelectedIndex;
if (2 != filterMode) //不是禁用
{
VCI_FILTER_RECORD filterRecord = new VCI_FILTER_RECORD();
filterRecord.ExtFrame = (UInt32)filterMode;
filterRecord.Start = 1; // System.Convert.ToUInt32("0x" + textBox_e_u_startid.Text, 16);
filterRecord.End = 0xff; // System.Convert.ToUInt32("0x" + textBox_e_u_endid.Text, 16);
//填充滤波表格
VCI_SetReference(m_devtype, m_devind, id, 1, (byte *)&filterRecord);
//使滤波表格生效
byte tm = 0;
if (VCI_SetReference(m_devtype, m_devind, id, 2, &tm) != STATUS_OK)
{
MessageBox.Show("设置滤波失败", "错误", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
VCI_CloseDevice(m_devtype, m_devind);
return(-1);
}
}
VCI_StartCAN(m_devtype, m_devind, id);
return(0);
}
unsafe private void buttonConnect_Click(object sender, EventArgs e)
{
if (m_bOpen == 1)
{
VCI_CloseDevice(m_devtype, m_devind);
m_bOpen = 0;
}
else
{
m_devind = (UInt32)comboBox_DevIndex.SelectedIndex;
m_canind = (UInt32)comboBox_CANIndex.SelectedIndex;
if (VCI_OpenDevice(m_devtype, m_devind, 0) == 0)
{
MessageBox.Show("打开设备失败,请检查设备类型和设备索引号是否正确", "错误",
MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return;
}
//USB-E-U 代码
UInt32 baud;
baud = GCanBrTab[comboBox_e_u_baud.SelectedIndex];
if (VCI_SetReference(m_devtype, m_devind, m_canind, 0, (byte *)&baud) != STATUS_OK)
{
MessageBox.Show("设置波特率错误，打开设备失败!", "错误", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
VCI_CloseDevice(m_devtype, m_devind);
return;
}
//滤波设置
//////////////////////////////////////////////////////////////////////////
m_bOpen = 1;
VCI_INIT_CONFIG config = new VCI_INIT_CONFIG();
config.AccCode = System.Convert.ToUInt32("0x" + textBox_AccCode.Text, 16);
config.AccMask = System.Convert.ToUInt32("0x" + textBox_AccMask.Text, 16);
config.Timing0 = System.Convert.ToByte("0x" + textBox_Time0.Text, 16);
config.Timing1 = System.Convert.ToByte("0x" + textBox_Time1.Text, 16);
config.Filter = (Byte)comboBox_Filter.SelectedIndex;
config.Mode = (Byte)comboBox_Mode.SelectedIndex;
VCI_InitCAN(m_devtype, m_devind, m_canind, ref config);
//////////////////////////////////////////////////////////////////////////
Int32 filterMode = comboBox_e_u_Filter.SelectedIndex;
if (2 != filterMode)//不是禁用
{
VCI_FILTER_RECORD filterRecord = new VCI_FILTER_RECORD();
filterRecord.ExtFrame = (UInt32)filterMode;
filterRecord.Start = System.Convert.ToUInt32("0x" + textBox_e_u_startid.Text, 16);
filterRecord.End = System.Convert.ToUInt32("0x" + textBox_e_u_endid.Text, 16);
//填充滤波表格
VCI_SetReference(m_devtype, m_devind, m_canind, 1, (byte *)&filterRecord);
//使滤波表格生效
byte tm = 0;
if (VCI_SetReference(m_devtype, m_devind, m_canind, 2, &tm) != STATUS_OK)
{
MessageBox.Show("设置滤波失败", "错误", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
VCI_CloseDevice(m_devtype, m_devind);
return;
}
}
//////////////////////////////////////////////////////////////////////////
}
buttonConnect.Text = m_bOpen == 1?"断开":"连接";
timer_rec.Enabled = m_bOpen == 1?true:false;
}
