/// <summary>
/// 成功返回非0，失败返回0
/// </summary>
/// <returns></returns>
private unsafe static void GetCanData()
{
Dictionary <string, byte[]> barCodeData = new Dictionary <string, byte[]>();
var CameraData = new Dictionary <uint, System.IO.MemoryStream>();
Dictionary <uint, System.IO.MemoryStream> YNZhiJingMaiData = new Dictionary <uint, System.IO.MemoryStream>();
IntPtr pt = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(VCI_CAN_OBJ)) * 100);
UInt32 res = 0;
byte[] buf1 = new byte[8];
while (m_bOpen)
{
for (uint m_canind = 0; m_canind < m_CanCount; m_canind++)
{
try
{
res = AdvCan.VCI_GetReceiveNum(m_devtype, m_devind, m_canind);
if (res == 0)
{
continue;
}
res = AdvCan.VCI_Receive(m_devtype, m_devind, m_canind, pt, 100, 100);
for (uint i = 0; i < res; i++)
{
VCI_CAN_OBJ obj = (VCI_CAN_OBJ)Marshal.PtrToStructure((IntPtr)((UInt32)pt + i * Marshal.SizeOf(typeof(VCI_CAN_OBJ))), typeof(VCI_CAN_OBJ));
//Package receiving ok
uint cmd = (obj.ID >> 20) & 0xFF;
if ((cmd == 0x01 || cmd == 0x02 || cmd == 0x05 || cmd == 0x06) && (obj.ID & 0xFF) >= 0x80)
{
//条码的数据,证卡的数据
uint BiaoZhi = (obj.ID >> 8) & 0xFFF;
byte[] buf;
if (barCodeData.ContainsKey(BiaoZhi.ToString()))
{
buf = barCodeData[BiaoZhi.ToString()];
}
else
{
buf = new byte[1024];
barCodeData.Add(BiaoZhi.ToString(), buf);
}
uint j = obj.ID & 0xFF;
System.Runtime.InteropServices.Marshal.Copy((IntPtr)obj.Data, buf1, 0, 8);
Array.Copy(buf1, 0, buf, (j - 0x80 + 1) * 8 + 4, 8);
}
else if (cmd == 0x01 || cmd == 0x02 || cmd == 0x05 || cmd == 0x06)
{
//条码,证卡的头部
uint BiaoZhi = (obj.ID >> 8) & 0xFFF;
byte[] buf;
if (barCodeData.ContainsKey(BiaoZhi.ToString()))
{
buf = barCodeData[BiaoZhi.ToString()];
barCodeData.Remove(BiaoZhi.ToString());
}
else
{
buf = new byte[1024];
}
buf[0] = (byte)((obj.ID >> 20) & 0xFF); //code
buf[1] = (byte)((obj.ID >> 0) & 0xFF); //m0
buf[2] = (byte)((obj.ID >> 8) & 0xFF); //m1
buf[3] = (byte)((obj.ID >> 16) & 0xF); //m2
System.Runtime.InteropServices.Marshal.Copy((IntPtr)obj.Data, buf1, 0, 8);
Array.Copy(buf1, 0, buf, 4, 8);
OnCanGetData(buf);
}
else if (cmd == 0x0A)
{
//燕南指静脉
uint BN = obj.ID & 0xFFFFF;
System.IO.MemoryStream ms;
if (YNZhiJingMaiData.ContainsKey(BN))
{
ms = YNZhiJingMaiData[BN];
}
else
{
ms = new System.IO.MemoryStream();
YNZhiJingMaiData.Add(BN, ms);
}
System.Runtime.InteropServices.Marshal.Copy((IntPtr)obj.Data, buf1, 0, 8);
ms.Write(buf1, 0, 8);
}
else if (cmd == 0x0B)
{
//燕南指静脉
uint BN = obj.ID & 0xFFFFF;
System.IO.MemoryStream ms;
if (YNZhiJingMaiData.ContainsKey(BN))
{
ms = YNZhiJingMaiData[BN];
YNZhiJingMaiData.Remove(BN);
}
else
{
ms = new System.IO.MemoryStream();
}
ms.Seek(0, System.IO.SeekOrigin.Begin);
int getLen = (int)ms.Length;
byte[] buf = new byte[getLen + 12];
ms.Read(buf, 12, getLen);
ms.Close();
int datalen = (int)(obj.Data[1] | (obj.Data[2] << 8));
uint checkSum = (uint)(obj.Data[3] | (obj.Data[4] << 8) | (obj.Data[5] << 16) | (obj.Data[6] << 24));
if ((datalen > getLen) || (getLen - datalen) > 8)
{
LogInfo.Log.WriteInfo(LogInfo.LogType.Error, "燕南指静脉，接收数据不完整。收到：" + getLen.ToString() + "，应该：" + datalen.ToString());
}
else
{
uint sum = 0;
for (int ii = 0; ii < datalen; ii++)
{
sum += buf[12 + ii];
}
if (sum == checkSum)
{
buf[0] = (byte)((obj.ID >> 20) & 0xFF); //code
buf[1] = (byte)((obj.ID >> 0) & 0xFF); //m0
buf[2] = (byte)((obj.ID >> 8) & 0xFF); //m1
buf[3] = (byte)((obj.ID >> 16) & 0xF); //m2
for (int ii = 0; ii < 8; ii++)
{
buf[4 + ii] = obj.Data[ii];
}
OnCanGetData(buf);
}
else
{
LogInfo.Log.WriteInfo(LogInfo.LogType.Error, "燕南指静脉，接收数据，校验失败。");
}
}
}
else if (cmd == 0xE7)
{
//串口摄像头图片数据
uint BN = obj.ID & 0xFFFFF;
System.IO.MemoryStream ms;
if (CameraData.ContainsKey(BN))
{
ms = CameraData[BN];
}
else
{
ms = new System.IO.MemoryStream();
CameraData.Add(BN, ms);
}
Marshal.Copy((IntPtr)obj.Data, buf1, 0, 8);
ms.Write(buf1, 0, 8);
}
else if (cmd == 0xE8)
{
//串口摄像头图片传输完成，长度
uint bn = obj.ID & 0xFFFFF;
System.IO.MemoryStream ms;
if (CameraData.ContainsKey(bn))
{
ms = CameraData[bn];
CameraData.Remove(bn);
}
else
{
ms = new System.IO.MemoryStream();
}
ms.Seek(0, System.IO.SeekOrigin.Begin);
byte[] buf = new byte[ms.Length + 12];
ms.Read(buf, 12, buf.Length - 12);
ms.Close();
buf[0] = (byte)((obj.ID >> 20) & 0xFF); //code
buf[1] = (byte)((obj.ID >> 0) & 0xFF); //m0
buf[2] = (byte)((obj.ID >> 8) & 0xFF); //m1
buf[3] = (byte)((obj.ID >> 16) & 0xF); //m2
buf[4] = obj.Data[0];
buf[5] = obj.Data[1];
buf[6] = obj.Data[2];
buf[7] = obj.Data[3];
OnCanGetData(buf);
}
else
{
byte[] buf = new byte[12];
buf[0] = (byte)((obj.ID >> 20) & 0xFF); //code
buf[1] = (byte)((obj.ID >> 0) & 0xFF); //m0
buf[2] = (byte)((obj.ID >> 8) & 0xFF); //m1
buf[3] = (byte)((obj.ID >> 16) & 0xF); //m2
Marshal.Copy((IntPtr)obj.Data, buf1, 0, 8);
Array.Copy(buf1, 0, buf, 4, 8);
OnCanGetData(buf);
}
}//for
}
catch (Exception ee)
{
Log.WriteFileLog("接收数据：" + ee);
}
} //for
Thread.Sleep(10);
} //while
}
