// read A/D from device
internal static void getVoltage(ADContainer adc, bool[] channel, int trial)
{
byte[] state;
double[] curVoltage = new double [channel.Length];
if (!chanSelected)
{
Debug.WriteLine("No channel selected yet. Cannot get voltage reading.");
return;
}
while (trial-- > 0)
{
state = adc.readDevice();
if (adc.canADMultiChannelRead())
{
// do all channels together
adc.doADConvert(channel, state);
curVoltage = adc.getADVoltage(state);
}
else
{
// do one channel at a time;
for (int i = 0; i < maxNumChan; i++)
{
if (channel [i])
{
adc.doADConvert(i, state);
curVoltage [i] = adc.getADVoltage(i, state);
}
}
}
Debug.Write(" Voltage Reading:");
for (int i = 0; i < maxNumChan; i++)
{
if (channel [i]) // show value up to 2 decimal places
{
Debug.Write(" Ch" + i + " = " + ((int)(curVoltage [i] * 10000)) / 10000.0 + ADUnit);
}
}
Debug.WriteLine("");
}
}
// find the first OneWireContainer with ADContainer interface
// if found, initialize the container
internal static OneWireContainer initContainer()
{
byte[] state = null;
OneWireContainer owc = null;
ADContainer adc = null;
try
{
adapter = OneWireAccessProvider.DefaultAdapter;
// get exclusive use of adapter
adapter.beginExclusive(true);
adapter.setSearchAllDevices();
adapter.targetAllFamilies();
adapter.Speed = DSPortAdapter.SPEED_REGULAR;
// enumerate through all the One Wire device found
for (System.Collections.IEnumerator owc_enum = adapter.AllDeviceContainers; owc_enum.MoveNext();)
{
// get the next owc
owc = (OneWireContainer)owc_enum.Current;
// check for One Wire device that implements ADCotainer interface
if (owc is ADContainer)
{
adc = (ADContainer)owc;
// access One Wire device
state = adc.readDevice();
double[] range = null;
double[] resolution = null;
// set resolution
for (int channel = 0; channel < adc.NumberADChannels; channel++)
{
range = adc.getADRanges(channel);
resolution = adc.getADResolutions(channel, range [0]);
// set to largest range
adc.setADRange(channel, range [0], state);
// set to highest resolution
adc.setADResolution(channel, resolution [resolution.Length - 1], state);
if (adc.hasADAlarms())
{
// disable all alarms
adc.setADAlarmEnable(channel, ADContainer_Fields.ALARM_LOW, false, state);
adc.setADAlarmEnable(channel, ADContainer_Fields.ALARM_HIGH, false, state);
}
}
adc.writeDevice(state);
// print device information
Debug.WriteLine("");
Debug.WriteLine("*************************************************************************");
Debug.WriteLine("* 1-Wire Device Name: " + owc.Name);
Debug.WriteLine("* 1-Wire Device Other Names: " + owc.AlternateNames);
Debug.WriteLine("* 1-Wire Device Address: " + owc.AddressAsString);
Debug.WriteLine("* 1-Wire Device Max speed: " + ((owc.MaxSpeed == DSPortAdapter.SPEED_OVERDRIVE) ? "Overdrive" : "Normal"));
Debug.WriteLine("* 1-Wire Device Number of Channels: " + adc.NumberADChannels);
Debug.WriteLine("* 1-Wire Device Can Read MultiChannels: " + adc.canADMultiChannelRead());
Debug.WriteLine("* 1-Wire Device Description: " + owc.Description);
Debug.WriteLine("*************************************************************************");
Debug.WriteLine(" Hit ENTER to continue...");
dis.ReadLine();
break;
}
} // enum all owc
}
catch (Exception e)
{
printException(e);
}
return(owc);
}