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picotech_ps2000_generic.mdd
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picotech_ps2000_generic.mdd
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<?xml version="1.0" encoding="utf-8"?>
<MATLABInstrumentDriver>
<FileVersion>2.42</FileVersion>
<DriverName>picotech_ps2000_generic.mdd</DriverName>
<DriverType>MATLAB generic</DriverType>
<InstrumentType>Oscilloscope</InstrumentType>
<InstrumentManufacturer>Pico Technology Ltd.</InstrumentManufacturer>
<InstrumentModel>PicoScope 2000 Series</InstrumentModel>
<InstrumentVersion>1.1.22</InstrumentVersion>
<Identify/>
<Reset/>
<Selftest/>
<Error/>
<CreateInitCode>
<Code>function init(obj)
% This function is called after the object is created.
% OBJ is the device object.
% End of function definition - DO NOT EDIT
%
% Copyright © 2013-2017 Pico Technology Ltd. All rights reserved.
% You may copy and distribute this file as long as it remains unmodified.
% SB
fprintf('\nCopyright © 2013-2017 Pico Technology Ltd. All rights reserved.\n');
fprintf('\n');
fprintf('PicoScope 2000 Series MATLAB Instrument Driver\n');
fprintf('\n');
% Load libraries
% ==============
% Indentify architecture and obtain function handle for the correct
% prototype file.
archStr = computer('arch');
ps2000MFile = str2func(strcat('ps2000MFile_', archStr));
ps2000WrapMFile = str2func(strcat('ps2000WrapMFile_', archStr));
% Only load library once
if (libisloaded('ps2000'))
% Do nothing
else
if (ismac)
[ps2000NotFound, ps2000Warnings] = loadlibrary('libps2000.dylib', ps2000MFile, 'alias', 'ps2000');
elseif (isunix)
[ps2000NotFound, ps2000Warnings] = loadlibrary('libps2000.so', ps2000MFile, 'alias', 'ps2000');
elseif (ispc)
[ps2000NotFound, ps2000Warnings] = loadlibrary('ps2000.dll', ps2000MFile);
else
% Do nothing
end
end
% Only load library once
if (libisloaded('ps2000Wrap'))
% Do nothing
else
if (ismac)
[ps2000NotFound, ps2000Warnings] = loadlibrary('libps2000wrap.dylib', ps2000WrapMFile, 'alias', 'ps2000Wrap');
elseif (isunix)
[ps2000NotFound, ps2000Warnings] = loadlibrary('libps2000Wrap.so', ps2000WrapMFile, 'alias', 'ps2000Wrap');
elseif (ispc)
[ps2000NotFound, ps2000Warnings] = loadlibrary('ps2000Wrap.dll', ps2000WrapMFile);
else
% Do nothing
end
end
% Load in enumeration and structure information
% =============================================
[~, obj.DriverData.structs, obj.DriverData.enums, ~] = ps2000MFile();
% Define constant values used by this Instrument Driver
% =====================================================
% Constants from ps2000.h header file
% ---------------------------------------
% Timebases
obj.DriverData.constants.PS2000_MAX_TIMEBASE = 19;
obj.DriverData.constants.PS2105_MAX_TIMEBASE = 20;
obj.DriverData.constants.PS2104_MAX_TIMEBASE = 19;
obj.DriverData.constants.PS2200_MAX_TIMEBASE = 23;
obj.DriverData.constants.PS2000_MAX_OVERSAMPLE = 256;
% ETS Mode
obj.DriverData.constants.PS2105_MAX_ETS_CYCLES = 250;
obj.DriverData.constants.PS2105_MAX_ETS_INTERLEAVE = 50;
obj.DriverData.constants.PS2104_MAX_ETS_CYCLES = 125;
obj.DriverData.constants.PS2104_MAX_ETS_INTERLEAVE = 25;
obj.DriverData.constants.PS2203_MAX_ETS_CYCLES = 250;
obj.DriverData.constants.PS2203_MAX_ETS_INTERLEAVE = 50;
obj.DriverData.constants.PS2204_MAX_ETS_CYCLES = 250;
obj.DriverData.constants.PS2204_MAX_ETS_INTERLEAVE = 40;
obj.DriverData.constants.PS2205_MAX_ETS_CYCLES = 250;
obj.DriverData.constants.PS2205_MAX_ETS_INTERLEAVE = 40;
obj.DriverData.constants.PS2000_MIN_ETS_CYCLES_INTERLEAVE_RATIO = 1;
obj.DriverData.constants.PS2000_MAX_ETS_CYCLES_INTERLEAVE_RATIO = 10;
% Function/Arbitrary Waveform Parameters
obj.DriverData.constants.PS2000_MIN_SIGGEN_FREQ = single(0.0);
obj.DriverData.constants.PS2000_MAX_SIGGEN_FREQ = single(100000.0);
obj.DriverData.constants.PS2000_MIN_SIGGEN_OFFSET_MV = -2000; % -2 Volts
obj.DriverData.constants.PS2000_MAX_SIGGEN_OFFSET_MV = 2000; % +2 Volts
obj.DriverData.constants.PS2000_MIN_SIGGEN_PKTOPK_MV = 0; % 0
obj.DriverData.constants.PS2000_MAX_SIGGEN_PKTOPK_MV = 4000; % +/- 2 Volts
obj.DriverData.constants.PS2000_SIGGEN_ZERO_VOLTAGE_DC = 0;
obj.DriverData.constants.PS2000_AWG_DDS_FREQUENCY = 48e6; % DDS Frequency of 48MHz.
% Although the PS2000 uses an 8-bit ADC, it is usually possible to
% oversample (collect multiple readings at each time) by up to 256.
% the results are therefore ALWAYS scaled up to 16-bits, even if
% oversampling is not used.
%
% The maximum and minimum values returned are therefore as follows:
obj.DriverData.constants.PS2000_MAX_VALUE = 32767;
obj.DriverData.constants.PS2000_MIN_VALUE = -32767;
obj.DriverData.constants.PS2000_LOST_DATA = -32768;
obj.DriverData.constants.MAX_CHANNELS = 4;
% PicoScope Models
obj.DriverData.variants.MODEL_NONE = 'NONE';
obj.DriverData.variants.MODEL_PS2104 = '2104';
obj.DriverData.variants.MODEL_PS2105 = '2105';
obj.DriverData.variants.MODEL_PS2202 = '2202';
obj.DriverData.variants.MODEL_PS2203 = '2203';
obj.DriverData.variants.MODEL_PS2204 = '2204';
obj.DriverData.variants.MODEL_PS2205 = '2205';
obj.DriverData.variants.MODEL_PS2204A = '2204A';
obj.DriverData.variants.MODEL_PS2205A = '2205A';
</Code>
</CreateInitCode>
<ConnectInitCode>
<Type>MCode</Type>
<Code>function init(obj)
% This function is called after the object is connected.
% OBJ is the device object.
% End of function definition - DO NOT EDIT
fprintf('Opening PicoScope 2000 Series device...\n\n');
obj.DriverData.unitHandle = calllib('ps2000', 'ps2000_open_unit');
% Verify handle returned
if(obj.DriverData.unitHandle == -1)
error('Oscilloscope failed to open.');
elseif(obj.DriverData.unitHandle == 0)
error('No oscilloscope found.');
else
% Display object information
obj
handle = obj.DriverData.unitHandle;
% Obtain serial number
infoline = blanks(40);
[infoLength, unitSerial] = calllib('ps2000', ...
'ps2000_get_unit_info', handle, infoline, ...
length(infoline), PicoStatus.PICO_BATCH_AND_SERIAL);
%set(obj, 'unitSerial', unitSerial);
obj.DriverData.unitSerial = unitSerial;
% Set variant and channel count information
infoLineVariant = blanks(40);
[infoLength, variant] = calllib('ps2000', ...
'ps2000_get_unit_info', handle, infoLineVariant, ...
length(infoline), PicoStatus.PICO_VARIANT_INFO);
obj.InstrumentModel = variant;
% Set device parameters
invoke(obj, 'resetDevice');
fprintf('\n');
fprintf('Connected to PicoScope 2000 Series device:-\n\n');
fprintf(' Instrument Model: %s\n', get(obj, 'InstrumentModel'));
fprintf(' Batch/Serial Number: %s\n', unitSerial);
fprintf(' Number of Channels: %d\n', get(obj, 'channelCount'));
fprintf(' Buffer memory: %d samples\n', get(obj, 'bufferMemory'));
fprintf('Maximum sampling rate: %d MS/s\n', (get(obj, 'maxSamplingRate')/1e6));
% Output the signal generator type
sigGenType = 'None';
switch (obj.DriverData.sigGenType)
case PicoConstants.SIG_GEN_FUNCT_GEN
sigGenType = 'Function Generator';
case PicoConstants.SIG_GEN_AWG
sigGenType = 'Arbitrary Waveform Generator';
otherwise
% Already set to none
end
fprintf('Signal Generator Type: %s\n\n', sigGenType);
end</Code>
</ConnectInitCode>
<CleanupCode>
<Type>MCode</Type>
<Code>function cleanup(obj)
% This function is called before the object is disconnected.
% OBJ is the device object.
% End of function definition - DO NOT EDIT
if(isfield(obj.DriverData,'unitHandle'))
unitHandle = obj.DriverData.unitHandle;
if (isempty(unitHandle))
% If no unithandle, return without doing anything.
return;
end
if(~libisloaded('ps2000') && ~libisloaded('ps2000Wrap'))
% If the drivers are no longer loaded, return without doing
% anything.
return;
end
% Disconnect Code:
disconnectStatus = calllib('ps2000', 'ps2000_close_unit', unitHandle);
if(disconnectStatus > 0 )
fprintf(['Connection to PicoScope %s with serial number %s ' ...
'closed successfully.\n'], obj.InstrumentModel, obj.DriverData.unitSerial);
elseif(unitHandle == 0)
% No handle
return;
else
error(['Connection to PicoScope %s with serial number %s ' ...
'not closed. Status code %d\n'], ...
obj.InstrumentModel, obj.DriverData.unitSerial, disconnectStatus);
end
unloadlibrary('ps2000Wrap');
unloadlibrary('ps2000');
if (~libisloaded('ps2000') && ~libisloaded('ps2000Wrap'))
disp('Libraries unloaded successfully.');
else
disp('Libraries not unloaded successfully.');
end
else
warning('Disconnect:NoDevicesFound', 'Disconnect: No devices found.');
end
</Code>
</CleanupCode>
<GroupInfo>
<Group>
<Name>parent</Name>
<Description/>
<Command/>
<Size>1</Size>
<Mappings>
<ChannelMap Command="parent1" Index="1"/>
</Mappings>
<PropertyInfo>
<Property>
<Name>bufferMemory</Name>
<Location>parent</Location>
<CapabilityGroup>Base</CapabilityGroup>
<Type>MCode</Type>
<Code>
<GetMCode>function propertyValue = getProperty(obj, propertyName)
% Return a property value.
% This function is called to return the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.
% If bufferMemory doesn't exist, create it.
if ( ~isfield(obj.DriverData, 'bufferMemory') )
obj.DriverData.awgBufferSize = 8192;
else
propertyValue = obj.DriverData.bufferMemory;
end</GetMCode>
<SetMCode>function set(obj, propertyName, propertyValue)
% Set a property value.
% This function is called to set the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.</SetMCode>
</Code>
<PermissibleType>
<Type>Double</Type>
<Constraint>none</Constraint>
</PermissibleType>
<DefaultValue>8192</DefaultValue>
<ReadOnly>never</ReadOnly>
<Description>Defines the size of the memory buffer on the device (in samples).</Description>
</Property>
<Property>
<Name>channelCount</Name>
<Location>parent</Location>
<CapabilityGroup>Base</CapabilityGroup>
<Type>MCode</Type>
<Code>
<GetMCode>function propertyValue = getProperty(obj, propertyName)
% Return a property value.
% This function is called to return the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.
% If channelCount doesn't exist, create it.
if ( ~isfield(obj.DriverData, 'channelCount') )
obj.DriverData.channelCount = [ ];
end
propertyValue = obj.DriverData.channelCount;</GetMCode>
<SetMCode>function set(obj, propertyName, propertyValue)
% Set a property value.
% This function is called to set the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.</SetMCode>
</Code>
<PermissibleType>
<Type>Double</Type>
<Constraint>bounded</Constraint>
<ConstraintValue>
<Range Max="4.0" Min="0.0"/>
</ConstraintValue>
</PermissibleType>
<DefaultValue>0</DefaultValue>
<ReadOnly>never</ReadOnly>
<Description>The number of input channels on the device. (DO NOT EDIT)</Description>
</Property>
<Property>
<Name>channelSettings</Name>
<Location>parent</Location>
<CapabilityGroup>Base</CapabilityGroup>
<Type>MCode</Type>
<Code>
<GetMCode>function propertyValue = getProperty(obj, propertyName)
% Return a property value.
% This function is called to return the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.
% If channelSettings doesn't exist, create it.
if ( ~isfield(obj.DriverData, 'channelSettings') )
obj.DriverData.channelSettings = [ ];
obj.DriverData.channelSettings.channelA.enabled = PicoConstants.TRUE;
obj.DriverData.channelSettings.channelA.dc = PicoConstants.TRUE;
obj.DriverData.channelSettings.channelA.range = evalin('base', 'ps2000Enuminfo.enPS2000Range.PS2000_5V');
if(obj.DriverData.channelCount == PicoConstants.DUAL_SCOPE)
obj.DriverData.channelSettings.channelB.enabled = PicoConstants.TRUE;
obj.DriverData.channelSettings.channelB.dc = PicoConstants.TRUE;
obj.DriverData.channelSettings.channelB.range = evalin('base', 'ps2000Enuminfo.enPS2000Range.PS2000_5V');
end
else
propertyValue = obj.DriverData.channelSettings;
end</GetMCode>
<SetMCode>function set(obj, propertyName, propertyValue)
% Set a property value.
% This function is called to set the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.
if(isStruct(propertyValue))
obj.DriverData.channelSettings = propertyValue;
else
error('Cannot set channelSettings - not a structure').
end</SetMCode>
</Code>
<PermissibleType>
<Type>Object</Type>
<Constraint>none</Constraint>
</PermissibleType>
<DefaultValue/>
<ReadOnly>never</ReadOnly>
<Description>A structure containing the channel settings.</Description>
</Property>
<Property>
<Name>firstRange</Name>
<Location>parent</Location>
<CapabilityGroup>Base</CapabilityGroup>
<Type>MCode</Type>
<Code>
<GetMCode>function propertyValue = getProperty(obj, propertyName)
% Return a property value.
% This function is called to return the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.
% If firstRange doesn't exist, create it.
if ( ~isfield(obj.DriverData, 'firstRange') )
obj.DriverData.firstRange = [ ];
else
propertyValue = obj.DriverData.firstRange;
end</GetMCode>
<SetMCode>function set(obj, propertyName, propertyValue)
% Set a property value.
% This function is called to set the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.</SetMCode>
</Code>
<PermissibleType>
<Type>Double</Type>
<Constraint>enum</Constraint>
<ConstraintValue>
<Value>0.0</Value>
<Value>1.0</Value>
<Value>2.0</Value>
<Value>3.0</Value>
<Value>4.0</Value>
<Value>5.0</Value>
<Value>6.0</Value>
<Value>7.0</Value>
<Value>8.0</Value>
<Value>9.0</Value>
<Value>10.0</Value>
<Value>11.0</Value>
</ConstraintValue>
</PermissibleType>
<DefaultValue>0.0</DefaultValue>
<ReadOnly>never</ReadOnly>
<Description>Lowest voltage range supported by the device (mV).</Description>
</Property>
<Property>
<Name>hasAdvancedTrigger</Name>
<Location>parent</Location>
<CapabilityGroup>Base</CapabilityGroup>
<Type>MCode</Type>
<Code>
<GetMCode>function propertyValue = getProperty(obj, propertyName)
% Return a property value.
% This function is called to return the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.
% If hasAdvancedTrigger doesn't exist, create it.
if ( ~isfield(obj.DriverData, 'hasAdvancedTrigger') )
obj.DriverData.hasAdvancedTrigger = 0;
else
propertyValue = obj.DriverData.hasAdvancedTrigger;
end</GetMCode>
<SetMCode>function set(obj, propertyName, propertyValue)
% Set a property value.
% This function is called to set the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.</SetMCode>
</Code>
<PermissibleType>
<Type>Boolean</Type>
<Constraint>none</Constraint>
</PermissibleType>
<DefaultValue>off</DefaultValue>
<ReadOnly>never</ReadOnly>
<Description>Indicates if the PicoScope unit has Advanced Trigger functionality.</Description>
</Property>
<Property>
<Name>hasEts</Name>
<Location>parent</Location>
<CapabilityGroup>Base</CapabilityGroup>
<Type>MCode</Type>
<Code>
<GetMCode>function propertyValue = getProperty(obj, propertyName)
% Return a property value.
% This function is called to return the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.
% If hasEts doesn't exist, create it.
if ( ~isfield(obj.DriverData, 'hasEts') )
obj.DriverData.hasEts = 0;
else
propertyValue = obj.DriverData.hasEts;
end</GetMCode>
<SetMCode>function set(obj, propertyName, propertyValue)
% Set a property value.
% This function is called to set the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.
</SetMCode>
</Code>
<PermissibleType>
<Type>Boolean</Type>
<Constraint>none</Constraint>
</PermissibleType>
<DefaultValue>off</DefaultValue>
<ReadOnly>never</ReadOnly>
<Description>Indicates if the device supports Equivalent Time Sampling (Ets).</Description>
</Property>
<Property>
<Name>hasFastStreaming</Name>
<Location>parent</Location>
<CapabilityGroup>Base</CapabilityGroup>
<Type>MCode</Type>
<Code>
<GetMCode>function propertyValue = getProperty(obj, propertyName)
% Return a property value.
% This function is called to return the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.
% If hasFastStreaming doesn't exist, create it.
if ( ~isfield(obj.DriverData, 'hasFastStreaming') )
obj.DriverData.hasFastStreaming = 0;
else
propertyValue = obj.DriverData.hasFastStreaming;
end</GetMCode>
<SetMCode>function set(obj, propertyName, propertyValue)
% Set a property value.
% This function is called to set the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.</SetMCode>
</Code>
<PermissibleType>
<Type>Boolean</Type>
<Constraint>none</Constraint>
</PermissibleType>
<DefaultValue>off</DefaultValue>
<ReadOnly>never</ReadOnly>
<Description>Indicates if the device supports collection of data using Fast Streaming.</Description>
</Property>
<Property>
<Name>lastRange</Name>
<Location>parent</Location>
<CapabilityGroup>Base</CapabilityGroup>
<Type>MCode</Type>
<Code>
<GetMCode>function propertyValue = getProperty(obj, propertyName)
% Return a property value.
% This function is called to return the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.
% If lastRange doesn't exist, create it.
if ( ~isfield(obj.DriverData, 'lastRange') )
obj.DriverData.lastRange = [ ];
else
propertyValue = obj.DriverData.lastRange;
end</GetMCode>
<SetMCode>function set(obj, propertyName, propertyValue)
% Set a property value.
% This function is called to set the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.
</SetMCode>
</Code>
<PermissibleType>
<Type>Double</Type>
<Constraint>enum</Constraint>
<ConstraintValue>
<Value>0.0</Value>
<Value>1.0</Value>
<Value>2.0</Value>
<Value>3.0</Value>
<Value>4.0</Value>
<Value>5.0</Value>
<Value>6.0</Value>
<Value>7.0</Value>
<Value>8.0</Value>
<Value>9.0</Value>
<Value>10.0</Value>
<Value>11.0</Value>
</ConstraintValue>
</PermissibleType>
<DefaultValue>0.0</DefaultValue>
<ReadOnly>never</ReadOnly>
<Description>Highest voltage range supported by the device (mV).</Description>
</Property>
<Property>
<Name>maxADCValue</Name>
<Location>parent</Location>
<CapabilityGroup>Base</CapabilityGroup>
<Type>MCode</Type>
<Code>
<GetMCode>function propertyValue = getProperty(obj, propertyName)
% Return a property value.
% This function is called to return the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.
% If maxADCValue doesn't exist, create it.
if ( ~isfield(obj.DriverData, 'maxADCValue') )
obj.DriverData.maxADCValue = [ ];
else
propertyValue = obj.DriverData.maxADCValue;
end</GetMCode>
<SetMCode>function set(obj, propertyName, propertyValue)
% Set a property value.
% This function is called to set the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.</SetMCode>
</Code>
<PermissibleType>
<Type>Double</Type>
<Constraint>bounded</Constraint>
<ConstraintValue>
<Range Max="32767.0" Min="32767.0"/>
</ConstraintValue>
</PermissibleType>
<DefaultValue>32767</DefaultValue>
<ReadOnly>always</ReadOnly>
<Description>The maximum ADC count for the device.</Description>
</Property>
<Property>
<Name>maxSamplingRate</Name>
<Location>parent</Location>
<CapabilityGroup>Base</CapabilityGroup>
<Type>MCode</Type>
<Code>
<GetMCode>function propertyValue = getProperty(obj, propertyName)
% Return a property value.
% This function is called to return the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.
% If maxSamplingRate doesn't exist, create it.
if ( ~isfield(obj.DriverData, 'maxSamplingRate') )
obj.DriverData.maxSamplingRate = [ ];
else
propertyValue = obj.DriverData.maxSamplingRate;
end</GetMCode>
<SetMCode>function set(obj, propertyName, propertyValue)
% Set a property value.
% This function is called to set the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.
</SetMCode>
</Code>
<PermissibleType>
<Type>Double</Type>
<Constraint>none</Constraint>
</PermissibleType>
<DefaultValue>0</DefaultValue>
<ReadOnly>never</ReadOnly>
<Description>The maximum single shot sampling rate for the device (samples per second).</Description>
</Property>
<Property>
<Name>numberOfSamples</Name>
<Location>parent</Location>
<CapabilityGroup>Base</CapabilityGroup>
<Type>MCode</Type>
<Code>
<GetMCode>function propertyValue = getProperty(obj, propertyName)
% Return a property value.
% This function is called to return the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.
% If numberOfSamples doesn't exist, create it.
if ( ~isfield(obj.DriverData, 'numberOfSamples') )
numberOfSamples = [ ];
else
propertyValue = obj.DriverData.numberOfSamples;
end</GetMCode>
<SetMCode>function set(obj, propertyName, propertyValue)
% Set a property value.
% This function is called to set the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.
obj.DriverData.numberOfSamples = propertyValue;</SetMCode>
</Code>
<PermissibleType>
<Type>Double</Type>
<Constraint>none</Constraint>
</PermissibleType>
<DefaultValue>0</DefaultValue>
<ReadOnly>never</ReadOnly>
<Description>The number of samples to be collected (applies to block and streaming mode capture).</Description>
</Property>
<Property>
<Name>unitHandle</Name>
<Location>parent</Location>
<CapabilityGroup>Base</CapabilityGroup>
<Type>MCode</Type>
<Code>
<GetMCode>function propertyValue = getProperty(obj, propertyName)
% Return a property value.
% This function is called to return the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.
% If DriverData.unitHandle doesn't exist, create it.
if ( ~isfield(obj.DriverData, 'unitHandle') )
obj.DriverData.unitHandle = [ ];
else
propertyValue = obj.DriverData.unitHandle;
end</GetMCode>
<SetMCode>function set(obj, propertyName, propertyValue)
% Set a property value.
% This function is called to set the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.</SetMCode>
</Code>
<PermissibleType>
<Type>Double</Type>
<Constraint>none</Constraint>
</PermissibleType>
<DefaultValue>0</DefaultValue>
<ReadOnly>never</ReadOnly>
<Description>The handle for the device.</Description>
</Property>
<Property>
<Name>unitSerial</Name>
<Location>parent</Location>
<CapabilityGroup>Base</CapabilityGroup>
<Type>MCode</Type>
<Code>
<GetMCode>function propertyValue = getProperty(obj, propertyName)
% Return a property value.
% This function is called to return the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.
% If DriverData.unitSerial doesn't exist, create it.
if ( ~isfield(obj.DriverData, 'unitSerial') )
obj.DriverData.unitSerial = [ ];
else
propertyValue = obj.DriverData.unitSerial;
end</GetMCode>
<SetMCode>function set(obj, propertyName, propertyValue)
% Set a property value.
% This function is called to set the device or group object property
% value. If the property is a group property, OBJ is the group object. If
% the property is a base device property, OBJ is the device object.
</SetMCode>
</Code>
<PermissibleType>
<Type>String</Type>
<Constraint>none</Constraint>
</PermissibleType>
<DefaultValue>''</DefaultValue>
<ReadOnly>never</ReadOnly>
<Description>The batch/serial serial number of the device.</Description>
</Property>
</PropertyInfo>
<MethodInfo>
<Method>
<Name>getLastError</Name>
<Location>parent</Location>
<CapabilityGroup>Base</CapabilityGroup>
<Type>MCode</Type>
<Code>
<MCode>function getLastError(obj)
% For group functions, OBJ is the group object. For
% base device functions, OBJ is the device object.
stringLength = 0;
errorCode = 0;
infoString = ' ';
[stringLength, errorCode] = ...
calllib('ps2000', 'ps2000_get_unit_info', obj.DriverData.unitHandle, ...
infoString, length(infoString), ...
evalin('base', 'ps2000Enuminfo.enPS2000Info.PS2000_ERROR_CODE'));
% Read in error codes
errorCodes = evalin('base', 'ps2000Enuminfo.enPS2000Error');
switch (str2num(errorCode))
case errorCodes.PS2000_OK
disp('Status: OK');
case errorCodes.PS2000_MAX_UNITS_OPENED
error('The maximum number of units have been opened.');
case errorCodes.PS2000_MEM_FAIL
error('Not enough memory could be allocated on the host machine.');
case errorCodes.PS2000_NOT_FOUND
error('An oscilloscope could not be found.');
case errorCodes.PS2000_FW_FAIL
error('Unable to download firmware..');
case errorCodes.PS2000_NOT_RESPONDING
error('The oscilloscope is not responding to commands from the PC.');
case errorCodes.PS2000_CONFIG_FAIL
error('The configuration information in the oscilloscope has become corrupt or is missing.');
case errorCodes.PS2000_OS_NOT_SUPPORTED
error('The operating system is not supported by this driver.');
case errorCodes.PS2000_PICOPP_TOO_OLD
error('The PICOPP File is too old.');
end
clear stringLength;
clear errorCodes;</MCode>
</Code>
<Description>getLastError(obj) returns the last error from the device.
This function may be used with the Test and Measurement Tool.
Input parameters:
obj - the object representing the device.
Output parameters:
status - status code returned by the driver.
For further information on the ps2000_get_unit_info function please refer to the PicoScope 2000 Series PC Oscilloscopes Programmer's Guide.</Description>
</Method>
<Method>
<Name>getUnitInfo</Name>
<Location>parent</Location>
<CapabilityGroup>Base</CapabilityGroup>
<Type>MCode</Type>
<Code>
<MCode>function [unitInfo, stringLengths] = getUnitInfo(obj)
% For group functions, OBJ is the group object. For
% base device functions, OBJ is the device object.
% Record of
stringLengths = zeros(8, 1);
unitInfo = [];
% Obtain unit information
for infoValue = 0:7
infoString = blanks(40);
switch(infoValue)
% Driver Version
case 0
[stringLengths(1), unitInfo.driverVersion] = ...
calllib('ps2000', 'ps2000_get_unit_info', obj.DriverData.unitHandle, ...
infoString, length(infoString), infoValue);
% USB Version
case 1
[stringLengths(2), unitInfo.usbVersion] = ...
calllib('ps2000', 'ps2000_get_unit_info', obj.DriverData.unitHandle, ...
infoString, length(infoString), infoValue);
% Hardware Version
case 2
[stringLengths(3), unitInfo.hardwareVersion] = ...
calllib('ps2000', 'ps2000_get_unit_info', obj.DriverData.unitHandle, ...
infoString, length(infoString), infoValue);
% Variant
case 3
[stringLengths(4), unitInfo.variant] = ...
calllib('ps2000', 'ps2000_get_unit_info', obj.DriverData.unitHandle, ...
infoString, length(infoString), infoValue);
% Batch and Serial
case 4
[stringLengths(5), unitInfo.batchAndSerial] = ...
calllib('ps2000', 'ps2000_get_unit_info', obj.DriverData.unitHandle, ...
infoString, length(infoString), infoValue);
% Calibration Date
case 5
[stringLengths(6), unitInfo.calibrationDate] = ...
calllib('ps2000', 'ps2000_get_unit_info', obj.DriverData.unitHandle, ...
infoString, length(infoString), infoValue);
% Error Code
case 6
[stringLengths(7), unitInfo.errorCode] = ...
calllib('ps2000', 'ps2000_get_unit_info', obj.DriverData.unitHandle, ...
infoString, length(infoString), infoValue);
% Kernel Driver Version
case 7
[stringLengths(8), unitInfo.kernelDriverVersion] = ...
calllib('ps2000', 'ps2000_get_unit_info', obj.DriverData.unitHandle, ...
infoString, length(infoString), infoValue);
otherwise
% Do nothing
end
end</MCode>
</Code>
<Description>getUnitInfo(obj) provides the following information about the oscilloscope:
1. Driver Version
2. USB Version
3. Hardware Version
4. Variant Information
5. Batch and Serial number
6. Calibration Date
7. Error code
8. Kernel Driver Version
If the oscilloscope failed to open, only line types 1 and 7 are available to explain why the last open unit call failed.