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rINSTCONTROL/@MyNa/MyNa.asv
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MyNa.asv
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classdef MyNa < MyInstrument
properties (SetAccess=protected, GetAccess=public)
enable_out; % switch the output signal on/off
point_no; % number of points in the sweep
sweep_type; % linear or log sweep
disp_type; % windows arrangement at the display, e.g 'D1'
active_trace = -1; % manipulating with active traces seems unavoidable
% for selecting the data format. -1 stands for unknown
cont_trig;
% measurement parameters for the traces 1-2, e.g. 'S21'
meas_par1;
meas_par2;
% data formats for the traces 1-2, options:
% 'PHAS', 'SLIN', 'SLOG', 'SCOM', 'SMIT', 'SADM', 'MLOG', 'MLIN', 'PLIN', 'PLOG', 'POL'
form1 = 'MLOG';
form2 = 'PHAS';
data1 = struct();
data2 = struct();
end
methods
function this=MyNa(name, interface, address, varargin)
this@MyInstrument(name, interface, address,varargin{:});
createCommandList(this);
createCommandParser(this);
switch interface
case 'TCPIP'
connectTCPIP(this);
end
%Tests if device is working.
try
openDevice(this);
closeDevice(this);
catch
error(['Failed to open communications with device.',...
' Check that the address and interface is correct.',...
' Currently the address is %s and the interface is ',...
'%s.'],this.address,this.interface)
end
end
% Command attributes are {class, attributtes} accepted by
% validateattributes()
function createCommandList(this)
addCommand(this,...
'cent_freq','SENS1:FREQ:CENT %d', 'default',1.5e6,...
'attributes',{{'numeric'}},'write_flag',true);
addCommand(this,...
'start_freq','SENS1:FREQ:START %d', 'default',1e6,...
'attributes',{{'numeric'}},'write_flag',true);
addCommand(this,...
'stop_freq','SENS1:FREQ:STOP %d', 'default',2e6,...
'attributes',{{'numeric'}},'write_flag',true);
addCommand(this,...
'span','SENS1:FREQ:SPAN %d', 'default',1e6,...
'attributes',{{'numeric'}},'write_flag',true);
% IF bandwidth
addCommand(this,...
'ifbw','SENS1:BAND %d', 'default',100,...
'attributes',{{'numeric'}},'write_flag',true);
addCommand(this,...
'point_no','SENS1:SWE:POIN %i', 'default',1000,...
'attributes',{{'numeric'},{'integer'}},'write_flag',true);
% number of averages
addCommand(this,...
'average_no','SENS1:AVER:COUN %i', 'default',0,...
'attributes',{{'numeric'},{'integer'}},'write_flag',true);
% number of traces
addCommand(this,...
'trace_no','CALC1:PAR:COUN %i', 'default',1,...
'attributes',{{'numeric'},{'integer'}},'write_flag',true);
addCommand(this,...
'sweep_type','SENS1:SWE:TYPE %s', 'default','LIN',...
'attributes',{{'string'}},'write_flag',true);
addCommand(this,...
'enable_out','OUTP %d', 'default',0,...
'attributes',{{'logical'}},'write_flag',true);
% probe power
addCommand(this,...
'power','SOUR:POW:LEV:IMM:AMPL %d', 'default',-10,...
'attributes',{{'numeric'}},'write_flag',true);
addCommand(this,...
'disp_type','DISP:WIND1:SPL %s', 'default','D1',...
'attributes',{{'string'}},'write_flag',true);
addCommand(this,...
'cont_trig',':INIT1:CONT %s', 'default','OFF',...
'attributes',{{'string'}},'write_flag',true);
% Parametric commands
% Measurement parameters for traces, i can be extended to 4
for i = 1:2
i_str = num2str(i);
addCommand(this,...
['meas_par',i_str],['CALC1:PAR',i_str,':DEF %s'],...
'default','S21',...
'attributes',{{'string'}},'write_flag',true);
end
end
% Execute all the write commands with default values
function writeAllDefaults(this)
for i=1:this.command_no
if this.CommandList.(this.command_names{i}).write_flag
write(this.Device, ...
sprintf(this.CommandList.(this.command_names{i}).command,...
this.CommandList.(this.command_names{i}).default));
this.(this.command_names{i})=...
this.CommandList.(this.command_names{i}).default;
end
end
end
% Execute all the read commands and update corresponding properties
function readAll(this)
result=readProperty(this, this.command_names{:});
res_names=fieldnames(result);
for i=1:length(res_names)
this.(res_names{i})=result.(res_names{i});
end
end
function writePropertyHedged(this, varargin)
this.openDevice();
try
this.writeProperty(varargin{:});
catch
disp('Error while writing the properties:');
disp(varargin);
end
this.readAll();
closeDevice(this);
end
function result = readPropertyHedged(this, varargin)
this.openDevice();
try
result = this.readProperty(varargin{:});
catch
disp('Error while reading the properties:');
disp(varargin);
end
this.closeDevice();
end
function readTrace(this, nTrace)
this.writeActiveTrace(nTrace);
dtag = sprintf('data%i', nTrace);
freq_str = strsplit(query(this.Device,'SENS1:FREQ:DATA?'),',');
data_str = strsplit(query(this.Device,'CALC1:DATA:FDAT?'),',');
this.(dtag).x = str2double(freq_str);
this.(dtag).y = str2double(data_str(1:2:end));
this.(dtag).y2 = str2double(data_str(2:2:end));
end
function writeActiveTrace(this, nTrace)
fprintf(this.Device, sprintf('CALC1:PAR%i:SEL',nTrace));
this.active_trace = nTrace;
end
function writeTraceFormat(this, nTrace, fmt)
this.writeActiveTrace(nTrace);
n_str = num2str(nTrace);
this.(['form',n_str]) = fmt;
fprintf(this.Device, sprintf('CALC1:FORM %s', fmt));
end
function singleSweep(this)
this.openDevice();
% Set the triger source to be remote control
fprintf(this.Device,':TRIG:SOUR BUS');
% Start a sweep cycle
fprintf(this.Device,':TRIG:SING');
% Wait for the sweep to end
query(this.Device,'*OPC?');
this.closeDevice();
end
function startContSweep(this)
this.openDevice();
this.writeProperty('cont_trig', 'ON');
% Set the triger source to be remote control
fprintf(this.Device,':TRIG:SOUR BUS');
% Start a sweep cycle
fprintf(this.Device,':TRIG');
this.closeDevice();
end
function abortSweep(this)
this.openDevice();
fprintf(this.Device,':ABOR');
this.closeDevice();
end
function connectTCPIP(this)
buffer = 1000 * 1024;
visa_brand = 'ni';
visa_address_rsa = sprintf('TCPIP0::%s::inst0::INSTR',...
this.address);
this.Device=visa(visa_brand, visa_address_rsa,...
'InputBufferSize', buffer,...
'OutputBufferSize', buffer);
set(this.Device,'InputBufferSize',1e6);
set(this.Device,'Timeout',10);
end
end
end
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