private void cmdStartBgnd_Click(System.Object eventSender, System.EventArgs eventArgs)
{
int CurIndex;
int CurCount;
short Status;
MccDaq.ErrorInfo ULStat;
int CBRate;
MccDaq.ScanOptions Options;
MccDaq.DigitalPortDirection Direction;
MccDaq.DigitalPortType PortNum;
cmdStartBgnd.Enabled = false;
cmdStartBgnd.Visible = false;
cmdStopConvert.Enabled = true;
cmdStopConvert.Visible = true;
cmdQuit.Enabled = false;
UserTerm = 0; // initialize user terminate flag
//FirstPortA is treated as a 16-bit port; therefore FirtstPortA and FirstPortB must be configured for digital output
PortNum = MccDaq.DigitalPortType.FirstPortA;
Direction = MccDaq.DigitalPortDirection.DigitalOut;
ULStat = DaqBoard.DConfigPort(PortNum, Direction);
PortNum = MccDaq.DigitalPortType.FirstPortB;
Direction = MccDaq.DigitalPortDirection.DigitalOut;
ULStat = DaqBoard.DConfigPort(PortNum, Direction);
// Collect the values with cbDaqInScan()
// Parameters:
// BoardNum :the number used by CB.CFG to describe this board
// ChanArray[] :array of channel values
// ChanTypeArray[] : array of channel types
// GainArray[] :array of gain values
// ChansCount :the number of elements in the arrays (0=disable queue)
// Count :the total number of A/D samples to collect
// CBRate :sample rate in samples per second
// ADData[] :the array for the collected data values
// Options :data collection options
Options = MccDaq.ScanOptions.Background | MccDaq.ScanOptions.Continuous | MccDaq.ScanOptions.NonStreamedIO;
CBRate = 1000; // Generate data at 1000 Hz
ULStat = DaqBoard.DaqOutScan(ChanArray, ChanTypeArray, GainArray, ChanCount, ref CBRate, Count, MemHandle, Options);
ULStat = DaqBoard.GetStatus(out Status, out CurCount, out CurIndex, MccDaq.FunctionType.DaqoFunction);
if (Status == MccDaq.MccBoard.Running)
{
lblShowStat.Text = "Running";
lblShowCount.Text = CurCount.ToString("D");
lblShowIndex.Text = CurIndex.ToString("D");
}
tmrCheckStatus.Enabled = true;
}
