static void Main(string[] args)
{
System.ConsoleKeyInfo cki = new System.ConsoleKeyInfo();
MccDaq.ErrorInfo RetVal;
int BoardNum = 0;
int DeviceChannels = 0;
int Rate = FREQ;
bool ReadLower = true;
BoardNum = GetBoardNum(DEVICE);
if (BoardNum == -1)
{
Console.WriteLine("No USB-{0} detected!", DEVICE);
cki = Console.ReadKey();
}
else
{
MccBoard daq = new MccDaq.MccBoard(BoardNum);
daq.BoardConfig.GetNumAdChans(out DeviceChannels);
if (DeviceChannels > 8)
{
Console.WriteLine("Single-Ended Channels");
}
else
{
Console.WriteLine("Differentially-Ended Channels");
}
IntPtr buffer = MccService.ScaledWinBufAllocEx(BUFFERSIZE);
if (buffer == IntPtr.Zero)
{
Console.WriteLine("Bad Handle");
return;
}
short[] chArray = new short[CHANCOUNT]; //configuration array for channel numbers
Range[] chRange = new Range[CHANCOUNT]; //configuration array for input ranges
chArray[0] = 0;
chArray[1] = 1;
chArray[2] = 2;
chArray[3] = 3;
chRange[0] = Range.Bip10Volts;
chRange[1] = Range.Bip10Volts;
chRange[2] = Range.Bip10Volts;
chRange[3] = Range.Bip10Volts;
RetVal = daq.ALoadQueue(chArray, chRange, CHANCOUNT);
IsError(RetVal);
//setup the acquisiton
RetVal = daq.AInScan(FIRSTCHANNEL,
LASTCHANNEL,
BUFFERSIZE,
ref Rate,
Range.Bip10Volts,
buffer,
ScanOptions.Background | ScanOptions.ScaleData | ScanOptions.Continuous
);
IsError(RetVal);
fStream = new StreamWriter(@"C:\Users\Public\Documents\DataFile1608G.asc");
CreateFileHeaders(chArray); //writes basic info to the beginning of the file
int Count = 0;
int Index = 0;
short daqStatus;
double[] theArray = new double[BUFFERSIZE];
//Loop until key press
do
{
RetVal = daq.GetStatus(out daqStatus, out Count, out Index, FunctionType.AiFunction);
if ((Index >= HALFBUFFSIZE) & ReadLower) //check for 50% more data
{
//get lower half of buffer - ScaledWinBufToArray returns engineering units
RetVal = MccService.ScaledWinBufToArray(buffer, theArray, 0, HALFBUFFSIZE);
IsError(RetVal);
DisplayData(theArray, HALFBUFFSIZE / CHANCOUNT);
ReadLower = false; //flag that controls the next read
}
else if ((Index < HALFBUFFSIZE) & !ReadLower)
{
//get the upper half - ScaledWinBufToArray returns engineering units
RetVal = MccService.ScaledWinBufToArray(buffer, theArray, HALFBUFFSIZE, HALFBUFFSIZE);
IsError(RetVal);
DisplayData(theArray, HALFBUFFSIZE / CHANCOUNT);
ReadLower = true;//flag that controls the next read
}
} while (!Console.KeyAvailable);
cki = Console.ReadKey();
//flush any buffered data out to disk
fStream.Close();
//stop the acquisition
RetVal = daq.StopBackground(FunctionType.AiFunction);
//free up memory
MccService.WinBufFreeEx(buffer);
WaitForKey();
}
}
private void DaqBoard_DataReceived(int BoardNum, EventType EventType, uint EventData, IntPtr pUserData)
{
//Get timestamp immediately, increment SampleCount.
_timeStamp = DateTime.UtcNow.ToString("yyyy-MM-dd HH:mm:ss.fff");
SampleCount++;
//Copy input to Data[], using temp[] to notify the change.
if (DaqBoard.BoardName != "USB-1408FS")
{
double[] temp = new double[16];
if (tick)
{
MccService.ScaledWinBufToArray(_dataPtr, temp, 0, numChannels + 1);
tick = false;
}
else
{
MccService.ScaledWinBufToArray(_dataPtr, temp, numChannels + 1, numChannels + 1);
tick = true;
}
_data = temp;
}
else
{
short[] tempShort = new short[4];
MccService.WinBufToArray(_dataPtr, tempShort, 0, 4);
float[] tempFloat = new float[4];
double[] tempDouble = new double[16];
for (int i = 0; i < 4; i++)
{
DaqBoard.ToEngUnits(Resolution, tempShort[i], out tempFloat[i]);
tempDouble[i] = (double)tempFloat[i];
}
_data = tempDouble;
}
//Update chart on the worker thread
_updateChart = true;
//Prep command parameters
Database.InsertRowCommand.Parameters.Add(new SQLiteParameter("Time", _timeStamp));
//TODO: Use a Sync Queue to insert data
for (int i = 0; i < _data.Length; i++)
{
if (_data[i] != 0.0)
{
GridData.Rows[i][1] = _data[i];
Database.InsertRowCommand.Parameters.Add(new SQLiteParameter("Dev" + i.ToString(), _data[i]));
}
else
{
Database.InsertRowCommand.Parameters.Add(new SQLiteParameter("Dev" + i.ToString(), null));
}
//If more than ~1hr of data at 200ms, remove to keep memory low
if (SampleCount > 20000)
{
Series[i].Values.RemoveAt(0);
}
}
//Execute Command
Database.ExecuteCommand(Database.InsertRowCommand);
//Update X Axis bounds
if (SampleCount >= XAxisMax)
{
XAxisMax = SampleCount;
XAxisMin = SampleCount - DisplayPoints;
}
}