private void tmrStartConvert_Tick(object eventSender, System.EventArgs eventArgs) /* Handles tmrStartConvert.Tick */
{
ushort DataValue;
int Chan = int.Parse(txtShowChannel.Text);
float EngUnits = float.Parse(txtShowTrigSet.Text);
ushort TrigValue = GetTrigCounts(Range, EngUnits);
MccDaq.TriggerType TrigType;
if (chkNegTrigger.Checked == true)
{
TrigType = MccDaq.TriggerType.TrigBelow;
}
else
{
TrigType = MccDaq.TriggerType.TrigAbove;
}
tmrStartConvert.Stop();
// Monitor the channel with MccDaq.MccBoard.ATrig
// The input value that meets the threshold will become DataValue
// The data value will be updated and displayed until a Stop event occurs.
// Parameters:
// Chan :the input channel number
// TrigType :specifies whether the trigger is to be above
// or below TrigValue
// TrigValue :the threshold value that will cause the trigger
// Range :the range for the board
// DataValue :the input value read from Chan
MccDaq.ErrorInfo ULStat = DaqBoard.ATrig(Chan, TrigType, TrigValue, Range, out DataValue);
// print the value that meets the threshold
lblTrigStatus.Text = "The value that caused the last trigger was:";
lblShowTrigValue.Text = DataValue.ToString("D");
ULStat = DaqBoard.ToEngUnits(Range, DataValue, out EngUnits);
lblShowVolts.Text = EngUnits.ToString("0.00###") + "V";
tmrStartConvert.Start();
}
