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  2. <!DOCTYPE html

  3.   PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

  4. <html><head>

  5.       <meta http-equiv="Content-Type" content="text/html; charset=utf-8">

  6.    <!--

  7. This HTML was auto-generated from MATLAB code.

  8. To make changes, update the MATLAB code and republish this document.

  9.       --><title>Channel</title><meta name="generator" content="MATLAB 9.4"><link rel="schema.DC" href="http://purl.org/dc/elements/1.1/"><meta name="DC.date" content="2018-03-24"><meta name="DC.source" content="Channel.m"><style type="text/css">

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  68. 

  69.   </style></head><body><div class="content"><pre class="codeinput"><span class="keyword">classdef</span> Channel

  70. <span class="comment">% CHANNEL is the class for one channel of the oscilloscope. Multiple</span>

  71. <span class="comment">% settings for the different channels of the oscilloscope can be changed</span>

  72. <span class="comment">% via this class definition</span>

  73. 

  74.     <span class="keyword">properties</span> (Hidden, Access = private)

  75.         scope <span class="comment">% Contains the class of the scope that is parent of this channel.</span>

  76.         channelnumber <span class="comment">% is the number of the channel on the scope.</span>

  77.     <span class="keyword">end</span>

  78.     <span class="keyword">properties</span> (Dependent)

  79.         state

  80.         coupling

  81.         bandwidth

  82.         scale

  83.         offset

  84.         probe

  85.         label

  86.         type

  87.         probeunit

  88.     <span class="keyword">end</span>

  89. 

  90.     <span class="keyword">methods</span>

  91.         <span class="keyword">function</span> ch = Channel(scope,channelnumber)

  92.             ch.channelnumber = channelnumber;

  93.             ch.scope = scope;

  94.         <span class="keyword">end</span>

  95. 

  96.         <span class="keyword">function</span> s = get.state(ch)

  97.             s = ch.CHAN(<span class="string">'state?'</span>);

  98.         <span class="keyword">end</span>

  99. 

  100.         <span class="keyword">function</span> out = get.coupling(ch)

  101.             out = ch.CHAN(<span class="string">'coup?'</span>);

  102.         <span class="keyword">end</span>

  103. 

  104.         <span class="keyword">function</span> out = get.bandwidth(ch)

  105.             out = ch.CHAN(<span class="string">'band?'</span>);

  106.         <span class="keyword">end</span>

  107. 

  108.         <span class="keyword">function</span> out = get.offset(ch)

  109.             out = ch.CHAN(<span class="string">'offs?'</span>);

  110.         <span class="keyword">end</span>

  111. 

  112.         <span class="keyword">function</span> out = get.scale(ch)

  113.             out = ch.CHAN(<span class="string">'scal?'</span>);

  114.         <span class="keyword">end</span>

  115. 

  116.         <span class="keyword">function</span> out = get.label(ch)

  117.             out = ch.CHAN(<span class="string">'lab?'</span>);

  118.         <span class="keyword">end</span>

  119. 

  120.         <span class="keyword">function</span> out = get.type(ch)

  121.             out = ch.CHAN(<span class="string">'type?'</span>);

  122.         <span class="keyword">end</span>

  123. 

  124.         <span class="keyword">function</span> out = get.probeunit(ch)

  125.             out = ch.scope.query([<span class="string">'PROB'</span>,num2str(ch.channelnumber),<span class="string">':SET:ATT:UNIT?'</span>]);

  126.         <span class="keyword">end</span>

  127. 

  128.         <span class="keyword">function</span> out = get.probe(ch)

  129.             out = ch.scope.query([<span class="string">'PROB'</span>,num2str(ch.channelnumber),<span class="string">':SET:ATT:MAN?'</span>]);

  130.         <span class="keyword">end</span>

  131. 

  132.         <span class="keyword">function</span> ch = set.state(ch,in)

  133.             ch.CHAN(<span class="string">'state'</span>,in);

  134.         <span class="keyword">end</span>

  135. 

  136.         <span class="keyword">function</span> ch = set.coupling(ch,in)

  137.             ch.CHAN(<span class="string">'coup'</span>,in);

  138.         <span class="keyword">end</span>

  139. 

  140.         <span class="keyword">function</span> ch = set.bandwidth(ch,in)

  141.             ch.CHAN(<span class="string">'band'</span>,in);

  142.         <span class="keyword">end</span>

  143. 

  144.         <span class="keyword">function</span> ch = set.offset(ch,in)

  145.             ch.CHAN(<span class="string">'offs'</span>,in);

  146.         <span class="keyword">end</span>

  147. 

  148.         <span class="keyword">function</span> ch = set.scale(ch,in)

  149.             ch.CHAN(<span class="string">'scal'</span>,in);

  150.         <span class="keyword">end</span>

  151. 

  152.         <span class="keyword">function</span> ch = set.label(ch,in)

  153.             ch.CHAN(<span class="string">'lab'</span>,in);

  154.         <span class="keyword">end</span>

  155. 

  156.         <span class="keyword">function</span> ch = set.type(ch,in)

  157.             ch.CHAN(<span class="string">'type'</span>,in);

  158.         <span class="keyword">end</span>

  159. 

  160.         <span class="keyword">function</span> out = frequency(ch)

  161.             out = str2double(ch.MEAS(<span class="string">'freq'</span>));

  162.         <span class="keyword">end</span>

  163. 

  164.         <span class="keyword">function</span> out = peak2peak(ch)

  165.             out = str2double(ch.MEAS(<span class="string">'peak'</span>));

  166.         <span class="keyword">end</span>

  167. 

  168.         <span class="keyword">function</span> out = period(ch)

  169.             out = str2double(ch.MEAS(<span class="string">'per'</span>));

  170.         <span class="keyword">end</span>

  171. 

  172.         <span class="keyword">function</span> out = amplitude(ch)

  173.             out = str2double(ch.MEAS(<span class="string">'ampl'</span>));

  174.         <span class="keyword">end</span>

  175. 

  176.         <span class="keyword">function</span> out = mean(ch)

  177.             out = str2double(ch.MEAS(<span class="string">'mean'</span>));

  178.         <span class="keyword">end</span>

  179. 

  180.         <span class="keyword">function</span> out = rms(ch)

  181.             out = str2double(ch.MEAS(<span class="string">'rms'</span>));

  182.         <span class="keyword">end</span>

  183. 

  184.         <span class="keyword">function</span> out = phase(ch)

  185.             out = str2double(ch.MEAS(<span class="string">'phas'</span>));

  186.         <span class="keyword">end</span>

  187. 

  188.         <span class="keyword">function</span> ch = set.probeunit(ch,unit)

  189.             ch.scope.write([<span class="string">'PROB'</span>,num2str(ch.channelnumber),<span class="string">':SET:ATT:UNIT '</span>, unit]);

  190.         <span class="keyword">end</span>

  191. 

  192.         <span class="keyword">function</span> ch = set.probe(ch,man)

  193.             ch.scope.write([<span class="string">'PROB'</span>,num2str(ch.channelnumber),<span class="string">':SET:ATT:MAN '</span>, man]);

  194.         <span class="keyword">end</span>

  195. 

  196.         <span class="keyword">function</span> data = waveform(ch,window)

  197.             ch.scope.single;

  198.             <span class="keyword">if</span> nargin &lt; 2

  199.                 window = <span class="string">'DEF'</span>;

  200.             <span class="keyword">end</span>

  201.             ch.scope.setWaveformSettings(window,<span class="string">'REAL'</span>)

  202.             data = ch.getWaveform;

  203.         <span class="keyword">end</span>

  204. 

  205.         <span class="keyword">function</span> data = getWaveform(ch)

  206.             header = str2num(ch.CHAN(<span class="string">'DATA:HEAD?'</span>));

  207.             data.length = header(3);

  208.             data.start = header(1);

  209.             data.stop = header(2);

  210.             data.sampletime = str2double(ch.CHAN(<span class="string">'DATA:XINC?'</span>));

  211.             ch.scope.opc;

  212.             ch.scope.write_unsafe([<span class="string">'CHAN'</span>,num2str(ch.channelnumber),<span class="string">':DATA?'</span>]);

  213.             data.data = ch.scope.readWaveform(data.length);

  214.         <span class="keyword">end</span>

  215. 

  216.     <span class="keyword">end</span>

  217. 

  218.     <span class="keyword">methods</span> (Hidden, Access = private)

  219.         <span class="keyword">function</span> c = CHAN(ch,string,in)

  220.             <span class="keyword">if</span> nargin == 2

  221.                 <span class="keyword">if</span> strcmp(string(end),<span class="string">'?'</span>)

  222.                     c = ch.scope.query([<span class="string">'CHAN'</span>,num2str(ch.channelnumber),<span class="string">':'</span>,string]);

  223.                 <span class="keyword">else</span>

  224.                     ch.scope.write([<span class="string">'CHAN'</span>,num2str(ch.channelnumber),<span class="string">':'</span>,string]);

  225.                 <span class="keyword">end</span>

  226.             <span class="keyword">else</span>

  227.                 ch.scope.write([<span class="string">'CHAN'</span>,num2str(ch.channelnumber),<span class="string">':'</span>,string,<span class="string">' '</span>,in]);

  228.             <span class="keyword">end</span>

  229.         <span class="keyword">end</span>

  230. 

  231.         <span class="keyword">function</span> c = MEAS(ch,string)

  232.             c = ch.scope.query([<span class="string">'MEAS'</span>,num2str(ch.channelnumber),<span class="string">':RES:ACT?'</span>,string]);

  233.         <span class="keyword">end</span>

  234. 

  235. <span class="comment">%         function c = CHANsend(ch,string,in)</span>

  236. <span class="comment">%             c = ['CHAN',num2str(ch.channelnumber),':',string,' ',in];</span>

  237. <span class="comment">%         end</span>

  238.     <span class="keyword">end</span>

  239. <span class="keyword">end</span>

  240. </pre><pre class="codeoutput error">Not enough input arguments.

  241. 

  242. Error in Channel (line 24)

  243.             ch.channelnumber = channelnumber;

  244. </pre><p class="footer"><br><a href="https://www.mathworks.com/products/matlab/">Published with MATLAB&reg; R2018a</a><br></p></div><!--

  245. ##### SOURCE BEGIN #####

  246. classdef Channel

  247. % CHANNEL is the class for one channel of the oscilloscope. Multiple

  248. % settings for the different channels of the oscilloscope can be changed

  249. % via this class definition

  250.     

  251.     properties (Hidden, Access = private)

  252.         scope % Contains the class of the scope that is parent of this channel.

  253.         channelnumber % is the number of the channel on the scope.

  254.     end

  255.     properties (Dependent)

  256.         state

  257.         coupling

  258.         bandwidth

  259.         scale

  260.         offset

  261.         probe

  262.         label

  263.         type

  264.         probeunit

  265.     end

  266.     

  267.     methods

  268.         function ch = Channel(scope,channelnumber)

  269.             ch.channelnumber = channelnumber;

  270.             ch.scope = scope;

  271.         end

  272.         

  273.         function s = get.state(ch)

  274.             s = ch.CHAN('state?');

  275.         end

  276.         

  277.         function out = get.coupling(ch)

  278.             out = ch.CHAN('coup?');

  279.         end

  280.         

  281.         function out = get.bandwidth(ch)

  282.             out = ch.CHAN('band?');

  283.         end

  284.         

  285.         function out = get.offset(ch)

  286.             out = ch.CHAN('offs?');

  287.         end

  288.         

  289.         function out = get.scale(ch)

  290.             out = ch.CHAN('scal?');

  291.         end

  292.         

  293.         function out = get.label(ch)

  294.             out = ch.CHAN('lab?');

  295.         end

  296.         

  297.         function out = get.type(ch)

  298.             out = ch.CHAN('type?');

  299.         end

  300.         

  301.         function out = get.probeunit(ch)

  302.             out = ch.scope.query(['PROB',num2str(ch.channelnumber),':SET:ATT:UNIT?']);

  303.         end

  304.         

  305.         function out = get.probe(ch)

  306.             out = ch.scope.query(['PROB',num2str(ch.channelnumber),':SET:ATT:MAN?']);

  307.         end

  308.                 

  309.         function ch = set.state(ch,in)

  310.             ch.CHAN('state',in);

  311.         end

  312.         

  313.         function ch = set.coupling(ch,in)

  314.             ch.CHAN('coup',in);

  315.         end

  316.         

  317.         function ch = set.bandwidth(ch,in)

  318.             ch.CHAN('band',in);

  319.         end

  320.         

  321.         function ch = set.offset(ch,in)

  322.             ch.CHAN('offs',in);

  323.         end

  324.         

  325.         function ch = set.scale(ch,in)

  326.             ch.CHAN('scal',in);

  327.         end

  328.         

  329.         function ch = set.label(ch,in)

  330.             ch.CHAN('lab',in);

  331.         end

  332.         

  333.         function ch = set.type(ch,in)

  334.             ch.CHAN('type',in);

  335.         end

  336.         

  337.         function out = frequency(ch)

  338.             out = str2double(ch.MEAS('freq'));

  339.         end

  340.         

  341.         function out = peak2peak(ch)

  342.             out = str2double(ch.MEAS('peak'));

  343.         end

  344.         

  345.         function out = period(ch)

  346.             out = str2double(ch.MEAS('per'));

  347.         end

  348.         

  349.         function out = amplitude(ch)

  350.             out = str2double(ch.MEAS('ampl'));

  351.         end

  352.         

  353.         function out = mean(ch)

  354.             out = str2double(ch.MEAS('mean'));

  355.         end

  356.         

  357.         function out = rms(ch)

  358.             out = str2double(ch.MEAS('rms'));

  359.         end

  360.         

  361.         function out = phase(ch)

  362.             out = str2double(ch.MEAS('phas'));

  363.         end

  364.         

  365.         function ch = set.probeunit(ch,unit)

  366.             ch.scope.write(['PROB',num2str(ch.channelnumber),':SET:ATT:UNIT ', unit]);

  367.         end

  368.         

  369.         function ch = set.probe(ch,man)

  370.             ch.scope.write(['PROB',num2str(ch.channelnumber),':SET:ATT:MAN ', man]);

  371.         end

  372.         

  373.         function data = waveform(ch,window)

  374.             ch.scope.single;

  375.             if nargin < 2

  376.                 window = 'DEF';

  377.             end

  378.             ch.scope.setWaveformSettings(window,'REAL')

  379.             data = ch.getWaveform;

  380.         end

  381.         

  382.         function data = getWaveform(ch)

  383.             header = str2num(ch.CHAN('DATA:HEAD?'));

  384.             data.length = header(3);

  385.             data.start = header(1);

  386.             data.stop = header(2);

  387.             data.sampletime = str2double(ch.CHAN('DATA:XINC?'));

  388.             ch.scope.opc;

  389.             ch.scope.write_unsafe(['CHAN',num2str(ch.channelnumber),':DATA?']);

  390.             data.data = ch.scope.readWaveform(data.length);

  391.         end

  392.         

  393.     end

  394.     

  395.     methods (Hidden, Access = private)

  396.         function c = CHAN(ch,string,in)

  397.             if nargin == 2

  398.                 if strcmp(string(end),'?')

  399.                     c = ch.scope.query(['CHAN',num2str(ch.channelnumber),':',string]);

  400.                 else

  401.                     ch.scope.write(['CHAN',num2str(ch.channelnumber),':',string]);

  402.                 end

  403.             else

  404.                 ch.scope.write(['CHAN',num2str(ch.channelnumber),':',string,' ',in]);

  405.             end

  406.         end

  407.         

  408.         function c = MEAS(ch,string)

  409.             c = ch.scope.query(['MEAS',num2str(ch.channelnumber),':RES:ACT?',string]);

  410.         end

  411.         

  412. %         function c = CHANsend(ch,string,in)

  413. %             c = ['CHAN',num2str(ch.channelnumber),':',string,' ',in];

  414. %         end

  415.     end

  416. end

  417. ##### SOURCE END #####

  418. --></body></html>