private DaqStatusValues QueryStatus()
{
var status = DaqStatusValues.Default;
using (IsolateConnection()) {
System.Diagnostics.Debug.Write("Status");
ConnectIfRequired();
var queryPacket = GenerateQueryDaqStatusPacketData();
if (null != UsbConn && UsbConn.WritePacket(queryPacket))
{
queryPacket = UsbConn.ReadPacket(QuarterSecond);
if (null != queryPacket)
{
var volUsbRaw = (ushort)(queryPacket[2] | (queryPacket[3] << 8));
var volBatRaw = (ushort)(queryPacket[4] | (queryPacket[5] << 8));
var tmpDaqRaw = (ushort)(queryPacket[7] | (queryPacket[6] << 8));
var temp = (tmpDaqRaw / 10.0) - 40.0;
var volUsb = (volUsbRaw / 1024.0) * 6.4;
var volBat = (volBatRaw / 1024.0) * 6.4;
status = new DaqStatusValues(volBat, volUsb, temp);
System.Diagnostics.Debug.WriteLine(": " + status);
}
}
if (status == DaqStatusValues.Default)
{
System.Diagnostics.Debug.WriteLine(": FAIL!");
}
}
return(status);
}
private void QueryThreadBody()
{
if (!_queryActive)
{
return;
}
int networkSize = 4;
var values = new PackedReadingValues[networkSize];
bool?usingDaqTemp = null;
int highestValid = -1;
var now = DateTime.Now;
var daqSafeTime = UnitUtility.StripToSecond(now);
for (int i = 0; i < values.Length; i++)
{
values[i] = QueryValues(i);
}
for (int i = 0; i < values.Length; i++)
{
if (!values[i].IsValid)
{
continue;
}
if (PackedValuesFlags.AnemTemperatureSource != (values[i].RawFlags & PackedValuesFlags.AnemTemperatureSource))
{
usingDaqTemp = true;
}
else if (!usingDaqTemp.HasValue)
{
usingDaqTemp = false;
}
highestValid = Math.Max(highestValid, i);
}
if (highestValid < 0)
{
highestValid = 3;
}
networkSize = highestValid + 1;
_lastClock = QueryAdjustedClock(0);
_daqStat = _lastDaqStatusQuery >= now?QueryStatus() : DaqStatusValues.Default;
for (int i = 0; i < values.Length; i++)
{
_sensors[i].HandleObservation(values[i], networkSize, daqSafeTime);
}
_networkSize = networkSize;
if (!_usingDaqTempUntil.HasValue || _usingDaqTempUntil.Value <= DateTime.Now)
{
_usingDaqTemp = usingDaqTemp;
_usingDaqTempUntil = null;
}
}
