302 lines
11 KiB
Matlab
302 lines
11 KiB
Matlab
classdef ScopeKeysight
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%NAME Summary of this class goes here
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% Detailed explanation goes here
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properties(Access=public)
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model scope_model
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fadc scope_fadc
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channel
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autoScale
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extRef
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removeDC
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interpolate
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recordLen
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IPaddress
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end
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methods (Access=public)
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function obj = ScopeKeysight(options)
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%NAME Construct an instance of this class
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% Detailed explanation goes here
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arguments
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options.model scope_model = scope_model.DSAZ634A;
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options.fadc scope_fadc = scope_fadc.GSa_160;
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options.channel logical = [0,0,0,0];
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options.autoScale logical = 0;
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options.extRef logical = 1;
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options.removeDC logical = 1;
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options.interpolate logical = 0;
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options.recordLen double = 1000000;
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options.IPaddress
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end
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%
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fn = fieldnames(options);
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for n = 1:numel(fn)
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try
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obj.(fn{n}) = options.(fn{n});
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end
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end
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switch obj.model
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case scope_model.DSAZ634A
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case scope_model.UXR1102A
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end
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end
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function recordedSignals = read(obj,options)
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arguments
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obj
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options.channel logical = obj.channel
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end
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%%%%%%%%%%%%%%%%%%%%%%%%
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%%% CONNECT TO SCOPE %%%
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%%%%%%%%%%%%%%%%%%%%%%%%
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if isempty(obj.IPaddress)
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switch obj.model
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case scope_model.DSAZ634A
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v=visadev('TCPIP0::keysight.tf.uni-kiel.de::inst0::INSTR');% TCPIP0::127.0.0.1::inst0::INSTR
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case scope_model.UXR1102A
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v=visadev('TCPIP0::testscope.tf.uni-kiel.de::inst0::INSTR');% TCPIP0::127.0.0.1::inst0::INSTR
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case scope_model.UXR1104A
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v=visadev('TCPIP0::134.245.243.223::inst0::INSTR');
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end
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else
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try
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ressourceName=['TCPIP0::',char(obj.IPaddress),'::inst0::INSTR'];
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v=visadev(ressourceName);
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catch
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error(['Could not connect to instrument using VISA. Check VISA ressourcename -> ', ressourceName]);
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end
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end
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disp(['Connected to Instrument: ',char(v.Vendor),' ',char(v.Model),' SerNo:',char(v.SerialNumber)]);
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% Check if Scope is ready to go
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opdone = 0;
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acqdone = 0;
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procdone = 0;
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while ~opdone || ~acqdone || ~procdone
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opdone = sscanf(obj.writeReceiveCheck(v,'*opc?'), '%f');
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acqdone = sscanf(obj.writeReceiveCheck(v,'ader?'), '%f');
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procdone = sscanf(obj.writeReceiveCheck(v,'pder?'), '%f');
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pause(0.005);
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end
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armed = sscanf(obj.writeReceiveCheck(v,'aer?'), '%f');
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scope_state = strtrim(obj.writeReceiveCheck(v,'RSTate?'));
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% Set sample rate / activate real edge
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if obj.fadc == scope_fadc.GSa_160
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obj.writeNcheck(v,':ACQuire:REDGe 1');
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if length(obj.channel)>1
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if obj.channel(2) == 1
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error("CH 2 is invalid for Real Edge configuration. ONLY use channel 1 and 3 as shown on scope! Simply use [1,0,1,0] as channel config to record 1 and 3.")
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end
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elseif length(obj.channel)>3
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if obj.channel(2) == 1 || obj.channel(4) == 1
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error("CH 2 is invalid for Real Edge configuration. ONLY use channel 1 and 3 as shown on scope! Simply use [1,0,1,0] as channel config to record 1 and 3.")
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end
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end
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else
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obj.writeNcheck(v,':ACQuire:REDGe 0');
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obj.writeNcheck(v,':ACQuire:SRATe %u',double(obj.fadc).*1e9);
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end
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%
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for n = find(obj.channel == 1)
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obj.writeNcheck(v,sprintf(':CHANnel%u:DISPlay ON',n));% display captured data trace
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end
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if obj.autoScale
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obj.writeNcheck(v,':AUTOscale');
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for n = 1:4
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range = str2double(obj.writeReceiveCheck(v,sprintf(':CHANnel%u:RANGe?',n)));
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obj.writeNcheck(v,sprintf(':CHANnel%u:RANGe %.3f',n,range/1.2));
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end
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else
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obj.writeNcheck(v,':SINGLE');
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end
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if obj.extRef
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switch obj.model
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case scope_model.DSAZ634A
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obj.writeNcheck(v,':TIMebase:REFClock HFR');
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case scope_model.UXR1102A || scope_model.UXR1104A
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obj.writeNcheck(v,':TIMebase:REFClock 1');
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end
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REFclock = strtrim(obj.writeReceiveCheck(v,':TIMebase:REFClock?'));
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if ~strcmp(REFclock,'HFR')
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obj.writeNcheck(v,':TIMebase:REFClock ON');
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REFclock = strtrim(obj.writeReceiveCheck(v,':TIMebase:REFClock?'));
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assert(~(strcmp(REFclock,'OFF') || strcmp(REFclock,'0')),'No Refclock found: Using internal')
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end
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else
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obj.writeNcheck(v,':TIMebase:REFClock 0');
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end
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if obj.interpolate
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obj.writeNcheck(v,'ACQ:INTerpolate INT16');
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obj.writeNcheck(v,sprintf(':ACQuire:POINts %u',obj.recordLen+100));
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else
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obj.writeNcheck(v,sprintf(':ACQuire:POINts %u',obj.recordLen+100));
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obj.writeNcheck(v,'ACQ:INTerpolate OFF');
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end
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obj.writeNcheck(v,':SYSTem:HEADer OFF'); % turn off system headers
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obj.writeNcheck(v,':WAVEFORM:FORMAT WORD');% set the data format type to WORD
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obj.writeNcheck(v,':WAVEFORM:BYTeorder LSBFirst');% Setup transfer of LSB first
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obj.writeNcheck(v,':WAVEFORM:STReaming off');% Turn off waveform streaming
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for n = find(obj.channel == 1)
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obj.writeNcheck(v,sprintf(':CHANnel%u:DISPlay ON',n));% display captured data trace
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end
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%% Acquire Data from Scope %%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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obj.writeNcheck(v,':DIGitize');
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recordedSignals = cell(size(obj.channel));
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for n = find(obj.channel == 1)
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% record
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recordedSignals{n} = obj.readChannel(v,n);
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% cut "safety samples" that were added at the end
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recordedSignals{n} = recordedSignals{n}(1:obj.recordLen);
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if obj.removeDC
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recordedSignals{n} = recordedSignals{n}-mean(recordedSignals{n});
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end
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obj.writeNcheck(v,sprintf(':CHANnel%u:DISPlay ON',n));
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end
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% fill all other channels with nothing
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for n = find(obj.channel == 0)
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recordedSignals{n} = [];
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end
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obj.writeNcheck(v,sprintf(':%s',scope_state));
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obj.writeNcheck(v,'*OPC?');
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opdone = 0;
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acqdone = 0;
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procdone = 0;
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while ~opdone || ~acqdone || ~procdone
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opdone = sscanf(obj.writeReceiveCheck(v,'*opc?'), '%f');
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acqdone = sscanf(obj.writeReceiveCheck(v,'ader?'), '%f');
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procdone = sscanf(obj.writeReceiveCheck(v,'pder?'), '%f');
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pause(0.005);
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end
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end
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end
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methods (Access=private)
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function captured_signal = readChannel(obj, v, aCH)
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Format = 'word';
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if strcmpi(Format,'word')
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nBytes = 2;
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blockReadType = 'int16';
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elseif strcmpi(Format,'byte')
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nBytes = 1;
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blockReadType = 'int8';
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else
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error('Param.Format not recognized');
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end
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maxBlockSize = pow2(20);
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obj.writeNcheck(v,sprintf(':WAVeform:SOURce CHANnel%u',aCH)); % read x origin:WAVeform:SOURce
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xOrg = str2double(obj.writeReceiveCheck(v,':wav:xor?'));% read x origin
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xInc = str2double(obj.writeReceiveCheck(v,':wav:xinc?'));% read x increment => 1/fadc
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xRef = str2double(obj.writeReceiveCheck(v,':wav:xref?'));
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yOrg = str2double(obj.writeReceiveCheck(v,':wav:yor?'));% read y origin
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yInc = str2double(obj.writeReceiveCheck(v,':wav:yInc?'));% read y increment
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yRef = str2double(obj.writeReceiveCheck(v,':wav:yref?'));
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points = str2double(obj.writeReceiveCheck(v,':wav:points?'));
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% timerperiod = max(10,1e-6*points*nBytes);
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% set(v,'TimerPeriod',timerperiod);
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timeout = min([max(10,1e-6*points*nBytes) 1000]);
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set(v,'Timeout',timeout);
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blockSize = min(pow2(ceil(log2(points))),maxBlockSize);
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set(v,'InputBufferSize',nBytes*blockSize);
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blockCount = int8(ceil(max(1,points/blockSize)));
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for block = 0:blockCount - 1
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startPoint = double(block) * blockSize + 1;
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endPoint = min((double(block + 1)) * blockSize,points);
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pointsRead = endPoint - startPoint + 1;
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obj.writeNcheck(v, sprintf(':wav:data? %d,%d', startPoint, pointsRead));
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%Wfm.data(startPoint:endPoint,1) = binblockread(v,blockReadType); %old Matlab
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data(startPoint:endPoint,1) = readbinblock(v,blockReadType);
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Junk = fread(v,1,'schar'); %#ok Read out end of file character.
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end
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%scale the signal back to volt
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captured_signal = data*yInc+yOrg;
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end
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function writeNcheck(~,visaobj,command)
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% 1) send command to intstument
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% 2) check if everything is okay
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writeline(visaobj,char(command));
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% writeline(visaobj,':syst:err?');
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% err_aw=readline(visaobj);
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% assert(strfind(err_aw,"No error"),['AWG System Error? after command: ', char(command)])
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end
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function [aw]=writeReceiveCheck(~,visaobj,command)
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% 1) send command to intstument
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% 2) receive answer from instrument
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% 3) check i f everything is okay
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writeline(visaobj,char(command));
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aw = readline(visaobj);
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% writeline(visaobj,':syst:err?');
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% err_aw=readline(visaobj);
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% assert(strfind(err_aw,"No error"),['AWG System Error? after command: ', char(command)])
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end
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end
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end
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