public void Read()
{
try
{
// Changes from idle to wait-for-trigger state.
// May want to move to "Open". Unsure if state is changed back to idle upon scan completion.
_v3497x.SCPI.INITiate.Command();
// Sends trigger via bus source.
_v3497x.SCPI.TRG.Command();
// Transfers NVM readings to output buffer.
_v3497x.SCPI.FETCh.QueryAllData(out string data);
string[] dataSeparated = data.Split(',');
// Remove previous readings.
Readings.Clear();
for (int i = 0; i < dataSeparated.Length; i += 2)
{
// Parse sensor output from string into double and add to list of readings.
uint key = uint.Parse(dataSeparated[(i + 1)]) % 100;
double value = double.Parse(dataSeparated[i], System.Globalization.NumberStyles.Any);
Readings.Add(key, value);
}
}
catch (Exception ex)
{
throw new DeviceCommandFailedException("Could not read from Keysight datalogger."
+ Environment.NewLine + ex.Message);
}
}
private async Task RefreshDevices()
{
IsLoading = true;
var registeredDevices = (await metersDatabase.GetMetersAsync()).ToList();
var results = registeredDevices.Select(d => DownloadDeviceDataAsync(d)).ToArray();
await Task.WhenAll(results);
Readings.Clear();
results
.SelectMany(p => p.Result)
.ToList()
.ForEach(i => Readings.Add(i));
IsLoading = false;
}