built classes for different signal generator waveforms.

built rp_sig_gen function to call the new classes.
built SignalGenerator_example to show how to use it.

examples/redpitaya/SignalGenerator_example.m

+%% alter path to your python (3.8 is tested) distribution here
+py_path = 'C:\Users\Arthur-Vincent\AppData\Local\Programs\Python\Python38\python.exe';
+broker_ip = '169.254.249.197'; 
+addpath('../../lib');
+addpath('../../lib/redpitaya'); 
+myMqtt = mqtt_py_matlab(py_path);
+myMqtt.connect_mqtt(broker_ip);
+
+%% Init components
+
+rp_name = "RP1"; % Name of used red pitaya
+channel = "CH1"; % Name of used red pitaya channel
+
+%% Waveform Sinus
+
+% sigeSin = SigGenSine(); % get an object of the SigGenSine child class
+% SiGeSin_proberty_message = sigeSin.get_mqtt_message_sin; % build mqtt message
+%sigeSin.magnitude =0.6; % change magnitude
+%sigeSin.frequency = 4000; % change frequency
+%rp_sig_gen(myMqtt, broker_ip, rp_name, channel, SiGeSin_proberty_message) % Use Mqtt function to generate signal
+
+% %% Waveform Square
+% 
+% sigeSquare = SigGenSquare(); % Build object of child class SigGenSquare
+% sigeSquare.magnitude =0.6; % change magnitude
+% sigeSquare.frequency = 3000; % change frequency
+% SiGeSquare_proberty_message = sigeSquare.get_mqtt_message_square; % build mqtt message
+% rp_sig_gen(myMqtt, broker_ip, rp_name, channel, SiGeSquare_proberty_message) % Use Mqtt function to generate signal
+
+
+%% Waveform Sawtooth
+
+% sigeSawtooth = SigGenSawtooth(); % Build object of child class SigGenSawtooth
+% sigeSawtooth.magnitude =0.7; % change magnitude
+% sigeSawtooth.frequency = 2000; % change frequency
+% SiGeSawtooth_proberty_message = sigeSawtooth.get_mqtt_message_sawtooth; % build mqtt message
+% rp_sig_gen(myMqtt, broker_ip, rp_name, channel, SiGeSawtooth_proberty_message) % Use Mqtt function to generate signal
+
+%% Waveform PWM
+
+sigePWM = SigGenPWM(); % Build object of child class SigGenSquare
+sigePWM.magnitude =0.6; % change magnitude
+sigePWM.frequency = 3000; % change frequency#
+sigePWM.duty_cycle = 0.2; % change duty cicle
+SiGeSquare_proberty_message = sigePWM.get_mqtt_message_pwm; % build mqtt message
+rp_sig_gen(myMqtt, broker_ip, rp_name, channel, SiGeSquare_proberty_message) % Use Mqtt function to generate signal

lib/redpitaya/SigGenPWM.m

+classdef SigGenPWM < SigGenProperties
+    
+    properties
+        frequency = 1000;
+        duty_cycle = 0.5;
+    end
+    
+    
+    methods
+        %% Constructor
+        function obj = SigGenPWM()
+            obj@SigGenProperties();
+            %SigGenSquare Construct an instance of this class
+        end
+        
+        %% Getter methods
+        function mqtt_message_sig = get_mqtt_message_pwm(obj)
+        mqtt_message_append =...
+            {"/WAVE/PWM", "1";...
+            "/FREQUENCY", num2str(obj.frequency);...
+            "/DUTYCYCLE",num2str(obj.duty_cycle)};
+        mqtt_message = obj.get_mqtt_message;
+        mqtt_message_sig = [mqtt_message; mqtt_message_append];
+
+        end
+        
+        %% Setter methods
+        
+        
+    end
+end

lib/redpitaya/SigGenProperties.m

+classdef SigGenProperties
+    
+    properties
+        magnitude = 1.0;
+        offset = 0.0;
+        phase_deg = 0.0;
+        burst_cnt = 0;
+    end
+    
+    
+    methods
+        %% Constructor
+        function obj = SigGenProperties()
+            %SigGenProperties Construct an instance of this class
+        end
+        
+        %% Getter methods
+        function mqtt_message = get_mqtt_message(obj)
+            mqtt_message = cell(4,2);
+            mqtt_message(1,1:2) = {"/AMPLITUDE", num2str(obj.magnitude)};
+            mqtt_message(2,1:2) = {"/OFFSET", num2str(obj.offset)};
+            mqtt_message(3,1:2) = {"/PHASE", num2str(obj.phase_deg)};
+            if obj.burst_cnt > 0
+                mqtt_message(4,1:2) = {"/BURST", num2str(obj.burst_cnt)};
+            else
+                mqtt_message(4,1:2) = {"/CONTINUOUS", num2str(obj.burst_cnt)};
+            end          
+        end          
+        
+        %% Setter methods
+        
+        
+    end
+end

lib/redpitaya/SigGenSawtooth.m

+classdef SigGenSawtooth < SigGenProperties
+    
+    properties
+        frequency = 1000;
+    end
+    
+    
+    methods
+        %% Constructor
+        function obj = SigGenSawtooth()
+            obj@SigGenProperties();
+            %SigGenSquare Construct an instance of this class
+        end
+        
+        %% Getter methods
+        function mqtt_message_sig = get_mqtt_message_sawtooth(obj)
+        mqtt_message_append =...
+            {"/WAVE/SAWTOOTH", "1";...
+            "/FREQUENCY", num2str(obj.frequency)};
+        mqtt_message = obj.get_mqtt_message;
+        mqtt_message_sig = [mqtt_message; mqtt_message_append];
+
+        end
+        
+        %% Setter methods
+        
+        
+    end
+end

lib/redpitaya/SigGenSine.m

+classdef SigGenSine < SigGenProperties
+    
+    properties
+        frequency = 1000;
+    end
+    
+    
+    methods
+        %% Constructor
+        function obj = SigGenSine()
+            obj@SigGenProperties();
+            %SigGenSine Construct an instance of this class
+        end
+        
+        %% Getter methods
+        function mqtt_message_sig = get_mqtt_message_sin(obj)
+        mqtt_message_append = {"/WAVE/SINE", "1"; "/FREQUENCY", num2str(obj.frequency)};
+        mqtt_message = obj.get_mqtt_message;
+        mqtt_message_sig = [mqtt_message; mqtt_message_append];
+        end
+        
+        %% Setter methods
+        
+        
+    end
+end

lib/redpitaya/SigGenSquare.m

+classdef SigGenSquare < SigGenProperties
+       
+    properties
+        frequency = 1000;
+    end
+    
+    
+    methods
+        %% Constructor
+        function obj = SigGenSquare()
+            obj@SigGenProperties();
+            %SigGenSquare Construct an instance of this class
+        end
+        
+        %% Getter methods
+        function mqtt_message_sig = get_mqtt_message_square(obj)
+        mqtt_message_append =...
+            {"/WAVE/SQUARE", "1";...
+            "/FREQUENCY", num2str(obj.frequency)};
+        mqtt_message = obj.get_mqtt_message;
+        mqtt_message_sig = [mqtt_message; mqtt_message_append];
+
+        end
+        
+        %% Setter methods
+        
+        
+    end
+end

lib/redpitaya/rp_sig_gen.m

+function rp_sig_gen(mqtt_handler, broker_ip, rp_name, ch, message)
+
+    % Init and disable signal generator
+    mqtt_handler.pub_mqtt(broker_ip, rp_name + "/CONFIGURE/AO/" + ch + "/DISABLE", "1");
+    mqtt_handler.pub_mqtt(broker_ip, rp_name + "/CONFIGURE/AO/" + ch + "/ENABLE", "1");
+    mqtt_handler.pub_mqtt(broker_ip, rp_name + "/CONFIGURE/AO/" + ch + "/DISABLE", "1");
+    
+    % Build signal from message proberty class
+    len_message = size(message);
+    len_message_dim1= len_message(1);
+    for i= 1:len_message_dim1
+         mqtt_handler.pub_mqtt(broker_ip, rp_name + "/CONFIGURE/AO/" + ch + message(i,1), message(i,2));
+    end
+    
+    % Enable signal generator
+    mqtt_handler.pub_mqtt(broker_ip, rp_name + "/CONFIGURE/AO/" + ch + "/ENABLE", "1"); 
+end
+