public static void Read()
{
NCTYPE_CAN_STRUCT _STRUCT = new NCTYPE_CAN_STRUCT();
NCTYPE_CAN_STRUCT *p = &_STRUCT;
int size = sizeof(NCTYPE_CAN_STRUCT);
ncRead(pObjHandlePtr, size, p);
DateTime date = DateTime.FromFileTime((long)p->Timestamp);
Console.Write("Timestamp:{0}\t", date);
Console.Write("Id:{0:X2}\t", p->ArbitrationId);
Console.Write("FrameType:{0:X2}\t", p->FrameType);
Console.Write("Length:{0:X2}\t", p->DataLength);
byte *pdata = p->Data;
for (int i = 0; i < 8; i++)
{
Console.Write("{0:X2}" + " ", *pdata);
pdata++;
}
Console.WriteLine();
}
public static void ReadMult()
{
//读取多帧只是依次读取多帧，导致不能实时读到发送后的值，需在一段时间内读去查询值。
var cancelTokenSource = new CancellationTokenSource(1000);
while (!cancelTokenSource.IsCancellationRequested)//设置读取超时
{
NCTYPE_CAN_STRUCT[] _STRUCT1 = new NCTYPE_CAN_STRUCT[150];
fixed(NCTYPE_CAN_STRUCT *p = _STRUCT1) //指针指向数组的首指针
{
NCTYPE_CAN_STRUCT *pp = p; //fixed语句的指针不能移动需赋值给新指针才可操作。
int szie = sizeof(NCTYPE_CAN_STRUCT) * _STRUCT1.Length; //结构体数组的总元素个数。
ncReadMult(pObjHandlePtr, szie, pp, ref pActualDataSize);
pActualDataSize = pActualDataSize / (uint)sizeof(NCTYPE_CAN_STRUCT);
for (int i = 0; i < pActualDataSize; i++)
{
if (pp->ArbitrationId == 0x7ab)
{
DateTime date = DateTime.FromFileTime((long)pp->Timestamp);
Console.Write("Timestamp:{0}\t", date);
Console.Write("Id:{0:X2}\t", pp->ArbitrationId);
Console.Write("FrameType:{0:X2}\t", pp->FrameType);
Console.Write("Length:{0:X2}\t", pp->DataLength);
byte *pdata = pp->Data;
for (int t = 0; t < 8; t++)
{
Console.Write("{0:X2}" + " ", *pdata);
pdata++;
}
Console.WriteLine();
}
pp++;//指针操作地址加一（数组的下一个元素）
}
}
}
}
static extern int ncWriteMult(ulong ObjHandle, ulong DataSize, NCTYPE_CAN_STRUCT *DataPtr);
static extern int ncReadMult(uint ObjHandle, int SizeofData, NCTYPE_CAN_STRUCT *DataPtr, ref uint ActualDataSize);
static extern int ncRead(uint ObjHandle, int DataSize, NCTYPE_CAN_STRUCT *DataPtr);
