public DeviceAccession()
{
//Az attributumok elérésénél a lockhoz a szinkronizációs objektum
lockAttributes = new object();
DAQ = DaqSystem.Local.LoadDevice("Dev1");
DAQ.SelfCalibrate();
ditask = new Task();
dotask = new Task();
aitask = new Task();
chLeftEnd = ditask.DIChannels.CreateChannel("Dev1/port0/line0", "Left End", ChannelLineGrouping.OneChannelForEachLine);
chRightEnd = ditask.DIChannels.CreateChannel("Dev1/port0/line1", "Right End", ChannelLineGrouping.OneChannelForEachLine);
chMoveToLeft = dotask.DOChannels.CreateChannel("Dev1/port1/line0", "Move to the Left", ChannelLineGrouping.OneChannelForEachLine);
chMoveToRight = dotask.DOChannels.CreateChannel("Dev1/port1/line1", "Move to the Right", ChannelLineGrouping.OneChannelForEachLine);
chAngle = aitask.AIChannels.CreateVoltageChannel("Dev1/ai0", "Angle", AITerminalConfiguration.Rse, -10, 10, AIVoltageUnits.Volts);
chPosition = aitask.AIChannels.CreateVoltageChannel("Dev1/ai1", "Position", AITerminalConfiguration.Rse, -10, 10, AIVoltageUnits.Volts);
ditask.Start();
dotask.Start();
aitask.Start();
digreader = new DigitalMultiChannelReader(ditask.Stream);
digwriter = new DigitalMultiChannelWriter(dotask.Stream);
anreader = new AnalogMultiChannelReader(aitask.Stream);
}
public void addDigitalOutputChannels(string[] channelNames, uint[,] digis)
{
byteArray=digis;
for (int ch = 0; ch < channelNames.Length; ch++) {
string name = channelNames[ch];
string vname = "DO" + ch;
// task.DOChannels.CreateChannel(name,vname,ChannelLineGrouping.OneChannelForAllLines);
task.DOChannels.CreateChannel(name, vname, ChannelLineGrouping.OneChannelForEachLine);
}
dowriter = new DigitalMultiChannelWriter(task.Stream);
}
public void setPort(uint value)
{
Task task = new Task();
string devFullname = string.Format("{0}/port0/line0:3", name);
DOChannel dochannel = task.DOChannels.CreateChannel(devFullname, "", ChannelLineGrouping.OneChannelForEachLine);
task.Start();
DigitalMultiChannelWriter writer = new DigitalMultiChannelWriter(task.Stream);
writer.BeginWriteSingleSamplePort(true, new uint[] { value& 0x01, value& 0x02, value& 0x04, value& 0x08 }, null, null);
task.Stop();
}
public void addDigitalOutputChannels(string[] channelNames, uint[,] digis)
{
byteArray = digis;
for (int ch = 0; ch < channelNames.Length; ch++)
{
string name = channelNames[ch];
string vname = "DO" + ch;
// task.DOChannels.CreateChannel(name,vname,ChannelLineGrouping.OneChannelForAllLines);
task.DOChannels.CreateChannel(name, vname, ChannelLineGrouping.OneChannelForEachLine);
}
dowriter = new DigitalMultiChannelWriter(task.Stream);
}
/// <summary>
/// Perform DO task.
/// </summary>
/// <param name="bits">0 or 1 to write digital LOW or HIGH output.</param>
public void DigitalWrite(params bool[] bits)
{
if (digitalOut != null)
{
try
{
bool[] input = new bool[digitalOut.DOChannels.Count];
for (int i = 0; i < input.Length; i++)
{
input[i] = bits.Length > i && bits[i];
}
DigitalMultiChannelWriter dw = new DigitalMultiChannelWriter(digitalOut.Stream);
dw.WriteSingleSampleSingleLine(true, input);
}
catch (DaqException de)
{
log.Write(de.Message);
}
}
}
/*
/// <summary>
/// This class contains both the analog and the digital tasks returned from a specific device.
/// The reason for its existence is that if a device is to have both its analog and its digital outputs used,
/// then they must exist in separate tasks.
/// </summary>
///
public class TaskCollection
{
public Task analogTask;
public Task digitalTask;
}
*/
/*
public static Task createVariableTimebaseTask(string digitalTimebaseOutLine, string analogTimebaseOutLine)
{
}*/
///
/// This method creates a daqMX task for an "output now" command, and starts the output.
/// </summary>
/// <param name="deviceName"></param>
/// <param name="settings"></param>
/// <param name="output"></param>
/// <returns></returns>
public static Task createDaqMxTaskAndOutputNow(string deviceName, DeviceSettings deviceSettings, SingleOutputFrame output,
SettingsData settings, Dictionary<int, HardwareChannel> usedDigitalChannels, Dictionary<int, HardwareChannel> usedAnalogChannels)
{
Task task = new Task(deviceName + " output task");
List<int> analogIDs;
List<HardwareChannel> analogs;
Dictionary<int, int[]> port_digital_IDs;
List<int> usedPortNumbers;
// Parse and create channels.
parseAndCreateChannels(deviceName,deviceSettings, usedDigitalChannels, usedAnalogChannels, task, out analogIDs, out analogs, out port_digital_IDs, out usedPortNumbers);
// now create buffer.
task.Timing.SampleTimingType = SampleTimingType.OnDemand;
// analog output
if (analogIDs.Count != 0)
{
// extract a list of analog values corresponding to the list analodIDs. This is
// sorted in the same way as the channels were created in parseAndCreateChannels
List<double> outputValues = new List<double>();
foreach (int analogID in analogIDs)
{
double val;
if (output.analogValues.ContainsKey(analogID))
val = output.analogValues[analogID];
else
val = 0;
outputValues.Add(val);
}
AnalogMultiChannelWriter writer = new AnalogMultiChannelWriter(task.Stream);
writer.WriteSingleSample(true, outputValues.ToArray());
}
// digital output
if (usedPortNumbers.Count != 0)
{
List<byte> outputValues = new List<byte>();
foreach (int portNumber in usedPortNumbers)
{
byte digitalMask = 1;
byte value=0;
for (int lineNum = 0; lineNum < 8; lineNum++)
{
int digitalID = port_digital_IDs[portNumber][lineNum];
if (digitalID != -1)
{
bool val = false;
if (output.digitalValues.ContainsKey(digitalID))
val = output.digitalValues[digitalID];
if (val)
value |= digitalMask;
}
digitalMask = (byte) (digitalMask << 1);
}
outputValues.Add(value);
}
DigitalMultiChannelWriter writer = new DigitalMultiChannelWriter(task.Stream);
writer.WriteSingleSamplePort(true, outputValues.ToArray());
}
return task;
}
/// <summary>
/// This method creates analog and digital output buffers for daqMx cards. Note that the daqmx library seems to only support
/// either analog OR digital on a given card at one time. Despite the fact that this method will create both types of buffers,
/// it will probably throw some daqMX level exceptions if asked to create both analog and digital buffers for the same device.
/// </summary>
/// <param name="deviceName"></param>
/// <param name="deviceSettings"></param>
/// <param name="sequence"></param>
/// <param name="settings"></param>
/// <param name="usedDigitalChannels">digital channels which reside on this server.</param>
/// <param name="usedAnalogChannels">analog channels which reside on this server</param>
/// <returns></returns>
public static Task createDaqMxTask(string deviceName, DeviceSettings deviceSettings, SequenceData sequence,
SettingsData settings, Dictionary<int, HardwareChannel> usedDigitalChannels, Dictionary<int, HardwareChannel> usedAnalogChannels,
ServerSettings serverSettings, out long expectedSamplesGenerated)
{
expectedSamplesGenerated = 0;
Task task = new Task(deviceName + " output task");
List<int> analogIDs;
List<HardwareChannel> analogs;
Dictionary<int, int[]> port_digital_IDs;
List<int> usedPortNumbers;
// Parse and create channels.
parseAndCreateChannels(deviceName,deviceSettings, usedDigitalChannels, usedAnalogChannels, task, out analogIDs, out analogs, out port_digital_IDs, out usedPortNumbers);
if (analogIDs.Count != 0)
{
if (deviceSettings.UseCustomAnalogTransferSettings)
{
task.AOChannels.All.DataTransferMechanism = deviceSettings.AnalogDataTransferMechanism;
task.AOChannels.All.DataTransferRequestCondition = deviceSettings.AnalogDataTransferCondition;
}
}
if (usedPortNumbers.Count != 0)
{
if (deviceSettings.UseCustomDigitalTransferSettings)
{
task.DOChannels.All.DataTransferMechanism = deviceSettings.DigitalDataTransferMechanism;
task.DOChannels.All.DataTransferRequestCondition = deviceSettings.DigitalDataTransferCondition;
}
}
// ok! now create the buffers
#region NON variable timebase buffer
if (deviceSettings.UsingVariableTimebase == false)
{
// non "variable timebase" buffer creation
double timeStepSize = 1.0 / (double)deviceSettings.SampleClockRate;
int nBaseSamples = sequence.nSamples(timeStepSize);
// for reasons that are utterly stupid and frustrating, the DAQmx libraries seem to prefer sample
// buffers with lengths that are a multiple of 4. (otherwise they, on occasion, depending on the parity of the
// number of channels, throw exceptions complaining.
// thus we add a few filler samples at the end of the sequence which parrot back the last sample.
int nFillerSamples = 4 - nBaseSamples % 4;
if (nFillerSamples == 4)
nFillerSamples = 0;
int nSamples = nBaseSamples + nFillerSamples;
if (deviceSettings.MySampleClockSource == DeviceSettings.SampleClockSource.DerivedFromMaster)
{
task.Timing.ConfigureSampleClock("", deviceSettings.SampleClockRate, deviceSettings.ClockEdge, SampleQuantityMode.FiniteSamples, nSamples);
}
else
{
task.Timing.ConfigureSampleClock(deviceSettings.SampleClockExternalSource, deviceSettings.SampleClockRate, deviceSettings.ClockEdge, SampleQuantityMode.FiniteSamples, nSamples);
}
if (deviceSettings.MasterTimebaseSource != "" && deviceSettings.MasterTimebaseSource != null)
{
task.Timing.MasterTimebaseSource = deviceSettings.MasterTimebaseSource.ToString();
}
// Analog first...
if (analogIDs.Count != 0)
{
double[,] analogBuffer;
double[] singleChannelBuffer;
try
{
analogBuffer = new double[analogs.Count, nSamples];
singleChannelBuffer = new double[nSamples];
}
catch (Exception e)
{
throw new Exception("Unable to allocate analog buffer for device " + deviceName + ". Reason: " + e.Message + "\n" + e.StackTrace);
}
for (int i = 0; i < analogIDs.Count; i++)
{
int analogID = analogIDs[i];
if (settings.logicalChannelManager.Analogs[analogID].TogglingChannel)
{
DaqMxTaskGenerator.getAnalogTogglingBuffer(singleChannelBuffer);
}
else if (settings.logicalChannelManager.Analogs[analogID].overridden)
{
for (int j = 0; j < singleChannelBuffer.Length; j++)
{
singleChannelBuffer[j] = settings.logicalChannelManager.Analogs[analogID].analogOverrideValue;
}
}
else
{
sequence.computeAnalogBuffer(analogIDs[i], timeStepSize, singleChannelBuffer);
}
for (int j = 0; j < nBaseSamples; j++)
{
analogBuffer[i, j] = singleChannelBuffer[j];
}
for (int j = nBaseSamples; j < nSamples; j++)
{
analogBuffer[i, j] = analogBuffer[i, j - 1];
}
}
singleChannelBuffer = null;
System.GC.Collect();
AnalogMultiChannelWriter writer = new AnalogMultiChannelWriter(task.Stream);
writer.WriteMultiSample(false, analogBuffer);
// analog cards report the exact number of generated samples. for non-variable timebase this is nSamples
expectedSamplesGenerated = nSamples;
}
if (usedPortNumbers.Count != 0)
{
byte[,] digitalBuffer;
bool[] singleChannelBuffer;
try
{
digitalBuffer = new byte[usedPortNumbers.Count, nSamples];
singleChannelBuffer = new bool[nSamples];
}
catch (Exception e)
{
throw new Exception("Unable to allocate digital buffer for device " + deviceName + ". Reason: " + e.Message + "\n" + e.StackTrace);
}
for (int i = 0; i < usedPortNumbers.Count; i++)
{
int portNum = usedPortNumbers[i];
byte digitalBitMask = 1;
for (int lineNum = 0; lineNum < 8; lineNum++)
{
int digitalID = port_digital_IDs[portNum][lineNum];
if (digitalID != -1)
{
if (settings.logicalChannelManager.Digitals[digitalID].TogglingChannel)
{
getDigitalTogglingBuffer(singleChannelBuffer);
}
else if (settings.logicalChannelManager.Digitals[digitalID].overridden)
{
for (int j = 0; j < singleChannelBuffer.Length; j++)
{
singleChannelBuffer[j] = settings.logicalChannelManager.Digitals[digitalID].digitalOverrideValue;
}
}
else
{
sequence.computeDigitalBuffer(digitalID, timeStepSize, singleChannelBuffer);
}
// byte digitalBitMask = (byte)(((byte) 2)^ ((byte)lineNum));
for (int j = 0; j < nBaseSamples; j++)
{
// copy the bit value into the digital buffer byte.
if (singleChannelBuffer[j])
digitalBuffer[i, j] |= digitalBitMask;
}
}
digitalBitMask = (byte)(digitalBitMask << 1);
}
for (int j = nBaseSamples; j < nSamples; j++)
{
digitalBuffer[i, j] = digitalBuffer[i, j - 1];
}
}
singleChannelBuffer = null;
System.GC.Collect();
DigitalMultiChannelWriter writer = new DigitalMultiChannelWriter(task.Stream);
writer.WriteMultiSamplePort(false, digitalBuffer);
/// Digital cards report the number of generated samples as a multiple of 4
expectedSamplesGenerated = nSamples;
}
}
#endregion
#region Variable timebase buffer creation
else // variable timebase buffer creation...
{
double timeStepSize = 1.0 / (double)deviceSettings.SampleClockRate;
TimestepTimebaseSegmentCollection timebaseSegments =
sequence.generateVariableTimebaseSegments(serverSettings.VariableTimebaseType,
timeStepSize);
int nBaseSamples = timebaseSegments.nSegmentSamples();
nBaseSamples++; // add one sample for the dwell sample at the end of the buffer
// for reasons that are utterly stupid and frustrating, the DAQmx libraries seem to prefer sample
// buffers with lengths that are a multiple of 4. (otherwise they, on occasion, depending on the parity of the
// number of channels, throw exceptions complaining.
// thus we add a few filler samples at the end of the sequence which parrot back the last sample.
int nFillerSamples = 4 - nBaseSamples % 4;
if (nFillerSamples == 4)
nFillerSamples = 0;
int nSamples = nBaseSamples + nFillerSamples;
if (deviceSettings.MySampleClockSource == DeviceSettings.SampleClockSource.DerivedFromMaster)
{
throw new Exception("Attempt to use a uniform sample clock with a variable timebase enabled device. This will not work. To use a variable timebase for this device, you must specify an external sample clock source.");
}
else
{
task.Timing.ConfigureSampleClock(deviceSettings.SampleClockExternalSource, deviceSettings.SampleClockRate, deviceSettings.ClockEdge, SampleQuantityMode.FiniteSamples, nSamples);
}
// Analog first...
if (analogIDs.Count != 0)
{
double[,] analogBuffer;
double[] singleChannelBuffer;
try
{
analogBuffer = new double[analogs.Count, nSamples];
singleChannelBuffer = new double[nSamples];
}
catch (Exception e)
{
throw new Exception("Unable to allocate analog buffer for device " + deviceName + ". Reason: " + e.Message + "\n" + e.StackTrace);
}
for (int i = 0; i < analogIDs.Count; i++)
{
int analogID = analogIDs[i];
if (settings.logicalChannelManager.Analogs[analogID].TogglingChannel)
{
getAnalogTogglingBuffer(singleChannelBuffer);
}
else if (settings.logicalChannelManager.Analogs[analogID].overridden)
{
for (int j = 0; j < singleChannelBuffer.Length; j++)
{
singleChannelBuffer[j] = settings.logicalChannelManager.Analogs[analogID].analogOverrideValue;
}
}
else
{
sequence.computeAnalogBuffer(analogIDs[i], timeStepSize, singleChannelBuffer, timebaseSegments);
}
for (int j = 0; j < nBaseSamples; j++)
{
analogBuffer[i, j] = singleChannelBuffer[j];
}
for (int j = nBaseSamples; j < nSamples; j++)
{
analogBuffer[i, j] = analogBuffer[i, j - 1];
}
}
singleChannelBuffer = null;
System.GC.Collect();
AnalogMultiChannelWriter writer = new AnalogMultiChannelWriter(task.Stream);
writer.WriteMultiSample(false, analogBuffer);
// Analog cards report the exact number of samples generated. for variable timebase this is nBaseSamples
expectedSamplesGenerated = nBaseSamples;
}
if (usedPortNumbers.Count != 0)
{
byte[,] digitalBuffer;
bool[] singleChannelBuffer;
try
{
digitalBuffer = new byte[usedPortNumbers.Count, nSamples];
singleChannelBuffer = new bool[nSamples];
}
catch (Exception e)
{
throw new Exception("Unable to allocate digital buffer for device " + deviceName + ". Reason: " + e.Message + "\n" + e.StackTrace);
}
for (int i = 0; i < usedPortNumbers.Count; i++)
{
int portNum = usedPortNumbers[i];
byte digitalBitMask = 1;
for (int lineNum = 0; lineNum < 8; lineNum++)
{
int digitalID = port_digital_IDs[portNum][lineNum];
if (digitalID != -1)
{
if (settings.logicalChannelManager.Digitals[digitalID].TogglingChannel)
{
getDigitalTogglingBuffer(singleChannelBuffer);
}
else if (settings.logicalChannelManager.Digitals[digitalID].overridden)
{
for (int j = 0; j < singleChannelBuffer.Length; j++)
{
singleChannelBuffer[j] = settings.logicalChannelManager.Digitals[digitalID].digitalOverrideValue;
}
}
else
{
sequence.computeDigitalBuffer(digitalID, timeStepSize, singleChannelBuffer, timebaseSegments);
}
// byte digitalBitMask = (byte)(((byte) 2)^ ((byte)lineNum));
for (int j = 0; j < nBaseSamples; j++)
{
// copy the bit value into the digital buffer byte.
if (singleChannelBuffer[j])
digitalBuffer[i, j] |= digitalBitMask;
}
}
digitalBitMask = (byte)(digitalBitMask << 1);
}
for (int j = nBaseSamples; j < nSamples; j++)
{
digitalBuffer[i, j] = digitalBuffer[i, j - 1];
}
}
singleChannelBuffer = null;
System.GC.Collect();
DigitalMultiChannelWriter writer = new DigitalMultiChannelWriter(task.Stream);
writer.WriteMultiSamplePort(false, digitalBuffer);
// digital cards report number of samples generated up to multiple of 4
expectedSamplesGenerated = nSamples;
}
}
#endregion
if (deviceSettings.StartTriggerType == DeviceSettings.TriggerType.TriggerIn)
{
task.Triggers.StartTrigger.ConfigureDigitalEdgeTrigger(
deviceSettings.TriggerInPort,
DigitalEdgeStartTriggerEdge.Rising);
}
task.Control(TaskAction.Verify);
task.Control(TaskAction.Commit);
task.Control(TaskAction.Reserve);
return task;
}
private void Line2Valve_StateChanged(int port, int line, bool value, string msg)
{
#if DEBUG
Console.WriteLine(msg + " Port {0} line {1} state {2}", port, line, value);
#endif
//if (!resettingSwitches)
//{
try
{
// Get the task name and load from MAX
string taskName = "";
switch (port)
{
case PORT_0:
taskName = "Port0DigitalOutTask";
break;
case PORT_1:
taskName = "Port1DigitalOutTask";
break;
case PORT_2:
taskName = "Port2DigitalOutTask";
break;
default:
break;
}
using (NationalInstruments.DAQmx.Task digitalWriteTask = DaqSystem.Local.LoadTask(taskName))
{
// Get switch values
int tmp = line;
int cyclinderToRead = 1;
switch (tmp)
{
//case CYCLINDER_VALVE_0:
// dataArray[tmp, 0] = value;
// break;
case CYCLINDER_VALVE_1:
dataArray[tmp, 1] = value;
cyclinderToRead = CYCLINDER_VALVE_1;
break;
case CYCLINDER_VALVE_2:
dataArray[tmp, 2] = value;
cyclinderToRead = CYCLINDER_VALVE_2;
break;
case CYCLINDER_VALVE_3:
dataArray[tmp, 3] = value;
cyclinderToRead = CYCLINDER_VALVE_3;
break;
case CYCLINDER_VALVE_4:
dataArray[tmp, 4] = value;
cyclinderToRead = CYCLINDER_VALVE_4;
break;
case CYCLINDER_VALVE_5:
dataArray[tmp, 5] = value;
cyclinderToRead = CYCLINDER_VALVE_5;
break;
case CYCLINDER_VALVE_6:
dataArray[tmp, 6] = value;
cyclinderToRead = CYCLINDER_VALVE_6;
break;
case CYCLINDER_VALVE_7:
dataArray[tmp, 7] = value;
cyclinderToRead = CYCLINDER_VALVE_7;
break;
case CYCLINDER_VALVE_8:
dataArray[tmp, 8] = value;
cyclinderToRead = CYCLINDER_VALVE_8;
break;
case CYCLINDER_VALVE_9:
dataArray[tmp, 9] = value;
cyclinderToRead = CYCLINDER_VALVE_9;
break;
case CYCLINDER_VALVE_10:
dataArray[tmp, 10] = value;
cyclinderToRead = CYCLINDER_VALVE_10;
break;
case CYCLINDER_VALVE_11:
dataArray[tmp, 11] = value;
cyclinderToRead = CYCLINDER_VALVE_11;
break;
case CYCLINDER_VALVE_12:
dataArray[tmp, 12] = value;
cyclinderToRead = CYCLINDER_VALVE_12;
break;
//case CYCLINDER_VALVE_13:
// dataArray[tmp, 13] = value;
// break;
//case CYCLINDER_VALVE_14:
// dataArray[tmp, 14] = value;
// break;
//case CYCLINDER_VALVE_15:
// dataArray[tmp, 15] = value;
// break;
default:
break;
}
// Write data to the port
DigitalMultiChannelWriter writer = new DigitalMultiChannelWriter(digitalWriteTask.Stream);
writer.WriteSingleSampleMultiLine(true, dataArray);
digitalWriteTask.Dispose();
#if DEBUG
double rval = ReadSensor(_panelID.ToString(), port.ToString(), cyclinderToRead);;
Console.WriteLine("Debug Write line {0} value {1}", line, rval);
#else
double rval = ReadSensor(_panelID.ToString(), port.ToString(), cyclinderToRead);;
#endif
}
}
catch (DaqException ex)
{
MessageBox.Show(ex.Message);
eventLog1.WriteEntry("Line2Valve_StateChanged - " + ex.Message);
}
}
/// <summary>
/// This method creates analog and digital output buffers for daqMx cards. Note that the daqmx library seems to only support
/// either analog OR digital on a given card at one time. Despite the fact that this method will create both types of buffers,
/// it will probably throw some daqMX level exceptions if asked to create both analog and digital buffers for the same device.
/// </summary>
/// <param name="deviceName"></param>
/// <param name="deviceSettings"></param>
/// <param name="sequence"></param>
/// <param name="settings"></param>
/// <param name="usedDigitalChannels">digital channels which reside on this server.</param>
/// <param name="usedAnalogChannels">analog channels which reside on this server</param>
/// <returns></returns>
public static Task createDaqMxTask(string deviceName, DeviceSettings deviceSettings, SequenceData sequence,
SettingsData settings, Dictionary <int, HardwareChannel> usedDigitalChannels, Dictionary <int, HardwareChannel> usedAnalogChannels,
ServerSettings serverSettings, out long expectedSamplesGenerated)
{
expectedSamplesGenerated = 0;
Task task = new Task(deviceName + " output task");
List <int> analogIDs;
List <HardwareChannel> analogs;
Dictionary <int, int[]> port_digital_IDs;
List <int> usedPortNumbers;
// Parse and create channels.
parseAndCreateChannels(deviceName, deviceSettings, usedDigitalChannels, usedAnalogChannels, task, out analogIDs, out analogs, out port_digital_IDs, out usedPortNumbers);
if (analogIDs.Count != 0)
{
if (deviceSettings.UseCustomAnalogTransferSettings)
{
task.AOChannels.All.DataTransferMechanism = deviceSettings.AnalogDataTransferMechanism;
task.AOChannels.All.DataTransferRequestCondition = deviceSettings.AnalogDataTransferCondition;
}
}
if (usedPortNumbers.Count != 0)
{
if (deviceSettings.UseCustomDigitalTransferSettings)
{
task.DOChannels.All.DataTransferMechanism = deviceSettings.DigitalDataTransferMechanism;
task.DOChannels.All.DataTransferRequestCondition = deviceSettings.DigitalDataTransferCondition;
}
}
// ok! now create the buffers
#region NON variable timebase buffer
if (deviceSettings.UsingVariableTimebase == false)
{
// non "variable timebase" buffer creation
double timeStepSize = Common.getPeriodFromFrequency(deviceSettings.SampleClockRate);
int nBaseSamples = sequence.nSamples(timeStepSize);
// for reasons that are utterly stupid and frustrating, the DAQmx libraries seem to prefer sample
// buffers with lengths that are a multiple of 4. (otherwise they, on occasion, depending on the parity of the
// number of channels, throw exceptions complaining.
// thus we add a few filler samples at the end of the sequence which parrot back the last sample.
int nFillerSamples = 4 - nBaseSamples % 4;
if (nFillerSamples == 4)
{
nFillerSamples = 0;
}
int nSamples = nBaseSamples + nFillerSamples;
if (deviceSettings.MySampleClockSource == DeviceSettings.SampleClockSource.DerivedFromMaster)
{
task.Timing.ConfigureSampleClock("", deviceSettings.SampleClockRate, deviceSettings.ClockEdge, SampleQuantityMode.FiniteSamples, nSamples);
}
else
{
task.Timing.ConfigureSampleClock(deviceSettings.SampleClockExternalSource, deviceSettings.SampleClockRate, deviceSettings.ClockEdge, SampleQuantityMode.FiniteSamples, nSamples);
}
if (deviceSettings.MasterTimebaseSource != "" && deviceSettings.MasterTimebaseSource != null)
{
task.Timing.MasterTimebaseSource = deviceSettings.MasterTimebaseSource.ToString();
}
// Analog first...
if (analogIDs.Count != 0)
{
double[,] analogBuffer;
double[] singleChannelBuffer;
try
{
analogBuffer = new double[analogs.Count, nSamples];
singleChannelBuffer = new double[nSamples];
}
catch (Exception e)
{
throw new Exception("Unable to allocate analog buffer for device " + deviceName + ". Reason: " + e.Message + "\n" + e.StackTrace);
}
for (int i = 0; i < analogIDs.Count; i++)
{
int analogID = analogIDs[i];
if (settings.logicalChannelManager.Analogs[analogID].TogglingChannel)
{
DaqMxTaskGenerator.getAnalogTogglingBuffer(singleChannelBuffer);
}
else if (settings.logicalChannelManager.Analogs[analogID].overridden)
{
for (int j = 0; j < singleChannelBuffer.Length; j++)
{
singleChannelBuffer[j] = settings.logicalChannelManager.Analogs[analogID].analogOverrideValue;
}
}
else
{
sequence.computeAnalogBuffer(analogIDs[i], timeStepSize, singleChannelBuffer);
}
for (int j = 0; j < nBaseSamples; j++)
{
analogBuffer[i, j] = singleChannelBuffer[j];
}
for (int j = nBaseSamples; j < nSamples; j++)
{
analogBuffer[i, j] = analogBuffer[i, j - 1];
}
}
singleChannelBuffer = null;
System.GC.Collect();
AnalogMultiChannelWriter writer = new AnalogMultiChannelWriter(task.Stream);
writer.WriteMultiSample(false, analogBuffer);
// analog cards report the exact number of generated samples. for non-variable timebase this is nSamples
expectedSamplesGenerated = nSamples;
}
if (usedPortNumbers.Count != 0)
{
byte[,] digitalBuffer;
bool[] singleChannelBuffer;
try
{
digitalBuffer = new byte[usedPortNumbers.Count, nSamples];
singleChannelBuffer = new bool[nSamples];
}
catch (Exception e)
{
throw new Exception("Unable to allocate digital buffer for device " + deviceName + ". Reason: " + e.Message + "\n" + e.StackTrace);
}
for (int i = 0; i < usedPortNumbers.Count; i++)
{
int portNum = usedPortNumbers[i];
byte digitalBitMask = 1;
for (int lineNum = 0; lineNum < 8; lineNum++)
{
int digitalID = port_digital_IDs[portNum][lineNum];
if (digitalID != -1)
{
if (settings.logicalChannelManager.Digitals[digitalID].TogglingChannel)
{
getDigitalTogglingBuffer(singleChannelBuffer);
}
else if (settings.logicalChannelManager.Digitals[digitalID].overridden)
{
for (int j = 0; j < singleChannelBuffer.Length; j++)
{
singleChannelBuffer[j] = settings.logicalChannelManager.Digitals[digitalID].digitalOverrideValue;
}
}
else
{
sequence.computeDigitalBuffer(digitalID, timeStepSize, singleChannelBuffer);
}
// byte digitalBitMask = (byte)(((byte) 2)^ ((byte)lineNum));
for (int j = 0; j < nBaseSamples; j++)
{
// copy the bit value into the digital buffer byte.
if (singleChannelBuffer[j])
{
digitalBuffer[i, j] |= digitalBitMask;
}
}
}
digitalBitMask = (byte)(digitalBitMask << 1);
}
for (int j = nBaseSamples; j < nSamples; j++)
{
digitalBuffer[i, j] = digitalBuffer[i, j - 1];
}
}
singleChannelBuffer = null;
System.GC.Collect();
DigitalMultiChannelWriter writer = new DigitalMultiChannelWriter(task.Stream);
writer.WriteMultiSamplePort(false, digitalBuffer);
/// Digital cards report the number of generated samples as a multiple of 4
expectedSamplesGenerated = nSamples;
}
}
#endregion
#region Variable timebase buffer creation
else // variable timebase buffer creation...
{
double timeStepSize = Common.getPeriodFromFrequency(deviceSettings.SampleClockRate);
TimestepTimebaseSegmentCollection timebaseSegments =
sequence.generateVariableTimebaseSegments(serverSettings.VariableTimebaseType,
timeStepSize);
int nBaseSamples = timebaseSegments.nSegmentSamples();
nBaseSamples++; // add one sample for the dwell sample at the end of the buffer
// for reasons that are utterly stupid and frustrating, the DAQmx libraries seem to prefer sample
// buffers with lengths that are a multiple of 4. (otherwise they, on occasion, depending on the parity of the
// number of channels, throw exceptions complaining.
// thus we add a few filler samples at the end of the sequence which parrot back the last sample.
int nFillerSamples = 4 - nBaseSamples % 4;
if (nFillerSamples == 4)
{
nFillerSamples = 0;
}
int nSamples = nBaseSamples + nFillerSamples;
if (deviceSettings.MySampleClockSource == DeviceSettings.SampleClockSource.DerivedFromMaster)
{
throw new Exception("Attempt to use a uniform sample clock with a variable timebase enabled device. This will not work. To use a variable timebase for this device, you must specify an external sample clock source.");
}
else
{
task.Timing.ConfigureSampleClock(deviceSettings.SampleClockExternalSource, deviceSettings.SampleClockRate, deviceSettings.ClockEdge, SampleQuantityMode.FiniteSamples, nSamples);
}
// Analog first...
if (analogIDs.Count != 0)
{
double[,] analogBuffer;
double[] singleChannelBuffer;
try
{
analogBuffer = new double[analogs.Count, nSamples];
singleChannelBuffer = new double[nSamples];
}
catch (Exception e)
{
throw new Exception("Unable to allocate analog buffer for device " + deviceName + ". Reason: " + e.Message + "\n" + e.StackTrace);
}
for (int i = 0; i < analogIDs.Count; i++)
{
int analogID = analogIDs[i];
if (settings.logicalChannelManager.Analogs[analogID].TogglingChannel)
{
getAnalogTogglingBuffer(singleChannelBuffer);
}
else if (settings.logicalChannelManager.Analogs[analogID].overridden)
{
for (int j = 0; j < singleChannelBuffer.Length; j++)
{
singleChannelBuffer[j] = settings.logicalChannelManager.Analogs[analogID].analogOverrideValue;
}
}
else
{
sequence.computeAnalogBuffer(analogIDs[i], timeStepSize, singleChannelBuffer, timebaseSegments);
}
for (int j = 0; j < nBaseSamples; j++)
{
analogBuffer[i, j] = singleChannelBuffer[j];
}
for (int j = nBaseSamples; j < nSamples; j++)
{
analogBuffer[i, j] = analogBuffer[i, j - 1];
}
}
singleChannelBuffer = null;
System.GC.Collect();
AnalogMultiChannelWriter writer = new AnalogMultiChannelWriter(task.Stream);
writer.WriteMultiSample(false, analogBuffer);
// Analog cards report the exact number of samples generated. for variable timebase this is nBaseSamples
expectedSamplesGenerated = nBaseSamples;
}
if (usedPortNumbers.Count != 0)
{
byte[,] digitalBuffer;
bool[] singleChannelBuffer;
try
{
digitalBuffer = new byte[usedPortNumbers.Count, nSamples];
singleChannelBuffer = new bool[nSamples];
}
catch (Exception e)
{
throw new Exception("Unable to allocate digital buffer for device " + deviceName + ". Reason: " + e.Message + "\n" + e.StackTrace);
}
for (int i = 0; i < usedPortNumbers.Count; i++)
{
int portNum = usedPortNumbers[i];
byte digitalBitMask = 1;
for (int lineNum = 0; lineNum < 8; lineNum++)
{
int digitalID = port_digital_IDs[portNum][lineNum];
if (digitalID != -1)
{
if (settings.logicalChannelManager.Digitals[digitalID].TogglingChannel)
{
getDigitalTogglingBuffer(singleChannelBuffer);
}
else if (settings.logicalChannelManager.Digitals[digitalID].overridden)
{
for (int j = 0; j < singleChannelBuffer.Length; j++)
{
singleChannelBuffer[j] = settings.logicalChannelManager.Digitals[digitalID].digitalOverrideValue;
}
}
else
{
sequence.computeDigitalBuffer(digitalID, timeStepSize, singleChannelBuffer, timebaseSegments);
}
// byte digitalBitMask = (byte)(((byte) 2)^ ((byte)lineNum));
for (int j = 0; j < nBaseSamples; j++)
{
// copy the bit value into the digital buffer byte.
if (singleChannelBuffer[j])
{
digitalBuffer[i, j] |= digitalBitMask;
}
}
}
digitalBitMask = (byte)(digitalBitMask << 1);
}
for (int j = nBaseSamples; j < nSamples; j++)
{
digitalBuffer[i, j] = digitalBuffer[i, j - 1];
}
}
singleChannelBuffer = null;
System.GC.Collect();
DigitalMultiChannelWriter writer = new DigitalMultiChannelWriter(task.Stream);
writer.WriteMultiSamplePort(false, digitalBuffer);
// digital cards report number of samples generated up to multiple of 4
expectedSamplesGenerated = nSamples;
}
}
#endregion
if (deviceSettings.StartTriggerType == DeviceSettings.TriggerType.TriggerIn)
{
task.Triggers.StartTrigger.ConfigureDigitalEdgeTrigger(
deviceSettings.TriggerInPort,
DigitalEdgeStartTriggerEdge.Rising);
}
task.Control(TaskAction.Verify);
task.Control(TaskAction.Commit);
task.Control(TaskAction.Reserve);
return(task);
}
/*
* /// <summary>
* /// This class contains both the analog and the digital tasks returned from a specific device.
* /// The reason for its existence is that if a device is to have both its analog and its digital outputs used,
* /// then they must exist in separate tasks.
* /// </summary>
* ///
* public class TaskCollection
* {
* public Task analogTask;
* public Task digitalTask;
* }
*/
/*
* public static Task createVariableTimebaseTask(string digitalTimebaseOutLine, string analogTimebaseOutLine)
* {
*
* }*/
///
/// This method creates a daqMX task for an "output now" command, and starts the output.
/// </summary>
/// <param name="deviceName"></param>
/// <param name="settings"></param>
/// <param name="output"></param>
/// <returns></returns>
public static Task createDaqMxTaskAndOutputNow(string deviceName, DeviceSettings deviceSettings, SingleOutputFrame output,
SettingsData settings, Dictionary <int, HardwareChannel> usedDigitalChannels, Dictionary <int, HardwareChannel> usedAnalogChannels)
{
Task task = new Task(deviceName + " output task");
List <int> analogIDs;
List <HardwareChannel> analogs;
Dictionary <int, int[]> port_digital_IDs;
List <int> usedPortNumbers;
// Parse and create channels.
parseAndCreateChannels(deviceName, deviceSettings, usedDigitalChannels, usedAnalogChannels, task, out analogIDs, out analogs, out port_digital_IDs, out usedPortNumbers);
// now create buffer.
task.Timing.SampleTimingType = SampleTimingType.OnDemand;
// analog output
if (analogIDs.Count != 0)
{
// extract a list of analog values corresponding to the list analodIDs. This is
// sorted in the same way as the channels were created in parseAndCreateChannels
List <double> outputValues = new List <double>();
foreach (int analogID in analogIDs)
{
double val;
if (output.analogValues.ContainsKey(analogID))
{
val = output.analogValues[analogID];
}
else
{
val = 0;
}
outputValues.Add(val);
}
AnalogMultiChannelWriter writer = new AnalogMultiChannelWriter(task.Stream);
writer.WriteSingleSample(true, outputValues.ToArray());
}
// digital output
if (usedPortNumbers.Count != 0)
{
List <byte> outputValues = new List <byte>();
foreach (int portNumber in usedPortNumbers)
{
byte digitalMask = 1;
byte value = 0;
for (int lineNum = 0; lineNum < 8; lineNum++)
{
int digitalID = port_digital_IDs[portNumber][lineNum];
if (digitalID != -1)
{
bool val = false;
if (output.digitalValues.ContainsKey(digitalID))
{
val = output.digitalValues[digitalID];
}
if (val)
{
value |= digitalMask;
}
}
digitalMask = (byte)(digitalMask << 1);
}
outputValues.Add(value);
}
DigitalMultiChannelWriter writer = new DigitalMultiChannelWriter(task.Stream);
writer.WriteSingleSamplePort(true, outputValues.ToArray());
}
return(task);
}
private void Line2Valve_StateChanged(int port, int line, byte value)
{
//if (!resettingSwitches)
//{
try
{
// Get the task name and load from MAX
string taskName = "";
switch (port)
{
case 0:
taskName = "";
break;
case 1:
taskName = "";
break;
case 2:
taskName = "Port2DigitalOutTask";
break;
default:
break;
}
using (NationalInstruments.DAQmx.Task digitalWriteTask = DaqSystem.Local.LoadTask(taskName))
{
// Get switch values
switch (line)
{
case 0:
dataArray[0] = 1;
break;
case 1:
dataArray[1] = 0;
break;
case 2:
dataArray[2] = 0;
break;
case 3:
dataArray[3] = 0;
break;
case 4:
dataArray[4] = 0;
break;
case 5:
dataArray[5] = 0;
break;
case 6:
dataArray[6] = 0;
break;
case 7:
dataArray[7] = 0;
break;
default:
break;
}
//int dataValue = 0;
// Convert switch values (0/1) into a decimal value
//for (int i = 0; i < 8; i++)
//{
// if (dataArray[i] == 1)
// dataValue += Convert.ToInt32(Math.Pow(2, (double)i));
//}
// Write data to the port
DigitalMultiChannelWriter writer = new DigitalMultiChannelWriter(digitalWriteTask.Stream);
writer.WriteSingleSamplePort(true, dataArray);
}
}
catch (DaqException ex)
{
MessageBox.Show(ex.Message);
}
//}
}
private void WriteDigital(IDictionary<Channel, double[]> output, int nsamples)
{
var data = new UInt32[output.Count, nsamples];
var chans = DAQTasks.DOChannels.Cast<DOChannel>().ToList();
foreach (var o in output)
{
int chanIndex = chans.FindIndex(c => c.PhysicalName == o.Key.PhysicalName);
for (int i = 0; i < o.Value.Count(); i++)
{
data[chanIndex, i] = (UInt32) o.Value[i];
}
}
var writer = new DigitalMultiChannelWriter(DAQTasks.DOStream);
writer.WriteMultiSamplePort(false, data);
}
