Initial

PicoVNA106.m

@@ -0,0 +1,152 @@
+classdef PicoVNA106
+    properties
+       v;
+    end
+    
+    methods
+        function obj = PicoVNA106()
+            obj.v = tcpclient('localhost', 5025);
+            obj.v.Timeout = 10; %default
+        end
+
+        function sweep(obj)
+            obj.sendCommand('INIT');
+            readline(obj.v);
+        end
+
+        function p = getPowerLevel(obj)
+            % Outputs power in dBm
+            obj.clearBuffer();
+            pstr = obj.sendCommand('SENS:LEV?');
+            splt = strsplit(pstr, ' ');
+            p = str2double(splt{1});
+        end
+
+        function setPowerLevel(obj, p)
+            % In dBm
+            obj.sendCommand(['SENS:LEV ' num2str(p)]);
+            obj.clearBuffer();
+        end
+
+        function setContinuousSweep(obj)
+            obj.sendCommand('INIT:CONT:ALL');
+        end
+
+        function [S11, S12, S21, S22] = getSParams(obj)
+            % Function does not initiate a sweep, it only gathers the data
+            % in the buffer.
+            obj.clearBuffer();
+            obj.sendCommand('CALC:DATA S11,POLAR');
+            S11temp = readbinblock(obj.v, 'double');
+            S11 = S11temp(1:2:end) + 1i*S11temp(2:2:end);
+            
+            obj.sendCommand('CALC:DATA S21,POLAR');
+            S21temp = readbinblock(obj.v, 'double');
+            S21 = S21temp(1:2:end) + 1i*S21temp(2:2:end);
+        
+            obj.sendCommand('CALC:DATA S12,POLAR');
+            S12temp = readbinblock(obj.v, 'double');
+            S12 = S12temp(1:2:end) + 1i*S12temp(2:2:end);
+        
+            obj.sendCommand('CALC:DATA S22,POLAR');
+            S22temp = readbinblock(obj.v, 'double');
+            S22 = S22temp(1:2:end) + 1i*S22temp(2:2:end);
+        end
+
+        function f = getFreqAxis(obj)
+            obj.clearBuffer()
+            freqStart = obj.sendCommand('SENS:FREQ:STAR?');
+            freqStart = obj.freqStrConvert(freqStart);
+            freqStop = obj.sendCommand('SENS:FREQ:STOP?');
+            freqStop = obj.freqStrConvert(freqStop);
+            numPoints = obj.sendCommand('SENS:SWE:POIN?');
+            f = linspace(freqStart, freqStop, numPoints);
+        end
+
+        function S = readToSparamsObject(obj)
+            w = warning('off', 'all');
+            S = SPARAMS();
+            w = warning('on', 'all');
+            [S.S11, S.S12, S.S21, S.S22] = obj.getSParams();
+            S.S11 = S.S11'; S.S12 = S.S12'; S.S21 = S.S21'; S.S22 = S.S22';
+            S.f = obj.getFreqAxis();
+            S.f = S.f';
+            S.setZ0(50);
+            S.setNumPorts(2);
+        end
+
+        function clearBuffer(obj)
+            w = warning('off', 'all');
+            obj.v.Timeout = 0.2;
+            resp = 1;
+            while ~isempty(resp)
+                try
+                    resp = readline(obj.v);
+                catch
+                    disp('No response from VNA when clearing buffer');
+                end
+            end
+            obj.v.Timeout = 10;
+            w = warning('on', 'all');
+        end
+
+        function freq = freqStrConvert(obj, freqStr)
+            freqStr = lower(freqStr);
+            strSplt = split(freqStr, ' ');
+            switch lower(char(strSplt(2)))
+                case 'khz'
+                    scale = 1e3;
+                case 'mhz'
+                    scale = 1e6;
+                case 'ghz'
+                    scale = 1e9;
+            end
+            freq = str2double(strSplt{1})*scale;
+        end
+
+        function setLocal(obj)
+            obj.sendCommand('SYST:LOC');
+        end
+        
+        function retVal = sendCommand(obj, command)
+            if contains(command, '?') == 1
+                writeline(obj.v, command);
+                retVal = readline(obj.v);
+            else
+                writeline(obj.v, command);
+                retVal = 0;
+            end
+        end
+        
+        function reset(obj)
+            obj.sendCommand('*RST');
+        end
+        
+        function selfTest(obj)
+           retStr = obj.sendCommand('*TST?');
+           try ret = str2double(retStr);
+           catch 
+               error('Non-numerical response')
+           end
+           if(ret == 0)
+               disp(['No errors found in self-test, code:' num2str(ret)]);
+           else
+               disp(['Error code: ' (ret)]);
+           end
+        end            
+        
+        function id = getID(obj)
+            id = obj.sendCommand('*IDN?');
+        end
+
+        function bool = deInit(obj)
+            if(isvalid(obj.v) == 1)
+                clear obj.v;
+                bool = 1;
+            else
+                bool = 0;
+            end
+
+        end
+    end
+end