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rINSTCONTROL/@MyRsa/MyRsa.asv
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MyRsa.asv
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classdef MyRsa < MyInstrument
%% Constructor and destructor
methods (Access=public)
function this=MyRsa(interface, address,varargin)
this@MyInstrument(interface, address, varargin{:});
createCommandList(this);
createCommandParser(this);
connectDevice(this, interface, address);
end
end
%% Private functions
methods (Access=private)
function val=getInstrProp(this, tag)
switch this.Gui.(tag).Style
case 'edit'
val=str2double(this.Gui.(tag).String)*...
this.ConvFactors.(tag);
case 'checkbox'
val=this.Gui.(tag).Value;
case 'popupmenu'
val=str2double(this.Gui.(tag).String(this.Gui.(tag).Value));
otherwise
error('No appropriate GUI field was found for %s',tag);
end
end
function createCommandList(this)
% Resolution bandwidth
addCommand(this, 'rbw','DPSA:BAND:RES',...
'default',1e3,'str_spec','%e')
addCommand(this, 'span', 'DPSA:FREQ:SPAN',...
'default',1e6,'str_spec','%e'),...
addCommand(this, 'start_freq','DPSA:FREQ:STAR',...
'default',1e6,'str_spec','%e')
addCommand(this, 'stop_freq','DPSA:FREQ:STOP',...
'default',2e6,'str_spec','%e')
addCommand(this, 'cent_freq','DPSA:FREQ:CENT',...
'default',1.5e6,'str_spec','%e')
addCommand(this, 'point_no','DPSA:POIN:COUN',...
'default',10401, 'val_list',{801,2401,4001,10401},...
'str_spec','P%i');
addCommand(this, 'read_cont','INIT:CONT','default',1,...
'str_spec','%i');
% Parametric commands
for i = 1:4
i_str = num2str(i);
% Display trace
% Enable average
addCommand(this, ['enable_avg',i_str],...
['TRAC',i_str,':DPSA:COUN:ENABLE'],...
'default',false,'str_spec','%b');
% Number of averages
addCommand(this, ['average_no',i_str],...
['TRAC',i_str,':DPSA:AVER:COUN'],...
'default',1,'str_spec','%i');
end
end
end
%% Public functions including callbacks
methods (Access=public)
function readSingle(this)
openDevice(this);
fwrite(this.Device, 'fetch:dpsa:res:trace3?');
data = binblockread(this.Device,'float');
closeDevice(this);
x_vec=linspace(this.start_freq,this.stop_freq,...
this.point_no);
%Calculates the power spectrum from the data, which is in dBm.
%Output is in V^2/Hz
power_spectrum = (10.^(data/10))/this.rbw*50*0.001;
%Trace object is created containing the data and its units
setTrace(this.Trace,'x',x_vec,'y',power_spectrum,...
'unit_y','$\mathrm{V}^2/\mathrm{Hz}$','name_y','Power',...
'unit_x','Hz','name_x','Frequency');
%Trigger acquired data event (inherited from MyInstrument)
triggerNewData(this);
end
function fetchCallback(this, hObject, ~)
%Fetches the data using the settings given. This function can
%in principle be used in the future to add further fetch
%functionality.
switch get(hObject,'Tag')
case 'fetch_single'
readSingle(this)
end
set(this.Gui.fetch_single,'Value',0);
end
end
end
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