Continus adc reading

examples/redpitaya/Oscilloscope_example.m

@@ -3,6 +3,11 @@ py_path = 'C:\Users\Arthur-Vincent\AppData\Local\Programs\Python\Python38\python
 broker_ip = '127.0.0.1';
 
 
+%% Oscilloscope plot config
+osci_div =1.00e-4; % Oscilloscope grid (2kHz => 0.5ms)
+osci_mag = 0.2; % Magnitude in Volt
+
+
 %% Init components
 %oscilloscope properties --> delivering mqtt string for RedPitaya Inputs
 %mqtt stuff
@@ -12,12 +17,22 @@ addpath('../../lib/redpitaya');
 op = OscilloscopeProperties(); % get an object of the OscilloscopeProperties class
 
 % Two options to set sample rate
-op = op.set_sample_rate_by_div(1.01e-4); % Set time per Oszilloscope-Div
+
+op = op.set_sample_rate_by_div(osci_div); % Set time per Oszilloscope-Div
 %op.SampleRate = 15.6e6; % Set samplerate in MHz
 
-op.TriggerDelay =+8192; %Delay in samples (0 delay -> Start writing in the center of the buffer)     
+% get sample rate of rp
+rp_sample_rate = op.get_sample_rate_rp()
+
+% get trigger delay of rp 
+trg_del_rp = op.get_trigger_delay_rp()
+
+% get max length of x axis 
+x_axis = op.get_ordinate();
+
+%op.TriggerDelay =8192; %Delay in samples (0 delay -> Start writing in the center of the buffer)     
 
-op.TriggerLevel = .001; % Trigger level in Volt
+op.TriggerLevel = .00; % Trigger level in Volt
 
 test_message = op.get_mqtt_message();
 %test_message = '[OSC]\ntrigger_delay=100\ndecimation=1\ntrigger_level=0.2\ntrigger_ch=CH_1\ntrigger_src=CH_1_PE';
@@ -40,16 +55,13 @@ myMqtt.pub_mqtt(broker_ip, "RP1/CONFIGURE/RECONFIG", test_message);
 % Read the last published message 
 fprintf('%s', myMqtt.get_payload_str("RP1/CONFIGURE/RECONFIG"));
 
-% get max length of x axis 
-x_axis = op.get_ordinate();
-
 pause(2);
 
 % Start oszilloscope
 myMqtt.pub_mqtt(broker_ip, "RP1/CONFIGURE/START", test_message);
 %% Filter
 
-Hd = fir_highpass2k;
+%Hd = fir_highpass2k;
 
 %% Signal aquisition
 
@@ -58,17 +70,27 @@ Hd = fir_highpass2k;
     arr = myMqtt.get_payload_float("RP1/raw/CH1");
     y_mat = cell2mat(cell(arr));
     
+    y_mat_shift = circshift(y_mat,8192+65);
+    
+    
+    
     %filter input 1
-    y_filt = filter(Hd,y_mat);
+   % y_filt = filter(Hd,y_mat);
     
     % Plot input 1
     subplot (2,1,1)
     plot(x_axis, y_mat);
-    grid on;
+
+    ax = gca;
+    ax.XGrid = 'on';
+    %ax.XTick = 0:osci_div:osci_div*10; 
+    ax.XTick = -osci_div*5:osci_div:osci_div*5; 
+    ax.YGrid = 'on';
+    ax.YTick = -2*osci_mag:osci_mag:2*osci_mag; 
     
     % Plot filtered input 1
     subplot (2,1,2)
-    plot(x_axis, y_filt);
+    plot(y_mat_shift);
     grid on;
     
     % Stop the aquisition

examples/redpitaya/Oscilloscope_example_multisig.m

+clear all
+
+
+%% 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 = '127.0.0.1';
+
+
+%% Oscilloscope plot config
+osci_div =1.00e-4; % Oscilloscope grid (2kHz => 0.5ms)
+osci_mag = 0.2; % Magnitude in Volt
+
+
+%% Init components
+%oscilloscope properties --> delivering mqtt string for RedPitaya Inputs
+%mqtt stuff
+addpath('../../lib');
+addpath('../../lib/redpitaya');
+
+op = OscilloscopeProperties(); % get an object of the OscilloscopeProperties class
+
+% Two options to set sample rate
+
+op = op.set_sample_rate_by_div(osci_div); % Set time per Oszilloscope-Div
+%op.SampleRate = 15.6e6; % Set samplerate in MHz
+op.TriggerDelay = 8192;
+op.TriggerLevel = .75;
+
+% get sample rate of rp
+rp_sample_rate = op.get_sample_rate_rp()
+
+% get trigger delay of rp 
+trg_del_rp = op.get_trigger_delay_rp()
+
+% get max length of x axis 
+x_axis = op.get_ordinate();
+
+%op.TriggerDelay =8192; %Delay in samples (0 delay -> Start writing in the center of the buffer)     
+
+%op.TriggerLevel = .00; % Trigger level in Volt
+
+test_message = op.get_mqtt_message();
+%test_message = '[OSC]\ntrigger_delay=100\ndecimation=1\ntrigger_level=0.2\ntrigger_ch=CH_1\ntrigger_src=CH_1_PE';
+
+myMqtt = mqtt_py_matlab(py_path);
+myMqtt.connect_mqtt(broker_ip);
+
+% Subscription to RP1 with wildcard (#)
+myMqtt.sub_mqtt_topics(broker_ip, "RP1/#");
+
+% Subscription without wildcard
+myMqtt.sub_mqtt_topics(broker_ip, "RP1/CONFIGURE/RECONFIG");
+
+myMqtt.sub_mqtt_topics(broker_ip, "RP1/raw/CH1");
+pause(2);
+
+% Publish Redpitaya API message
+myMqtt.pub_mqtt(broker_ip, "RP1/CONFIGURE/RECONFIG", test_message);
+
+% Read the last published message 
+fprintf('%s', myMqtt.get_payload_str("RP1/CONFIGURE/RECONFIG"));
+
+pause(2);
+
+% Start oszilloscope
+myMqtt.pub_mqtt(broker_ip, "RP1/CONFIGURE/START", test_message);
+%% Filter
+
+%Hd = fir_highpass2k;
+
+%% Signal aquisition
+xxx =1;
+while(xxx <50)
+    
+    myMqtt.sub_mqtt_topics(broker_ip, "RP1/raw/CH1"); % renew subcription
+    pause(1);
+    
+    % Read input 1
+    arr = myMqtt.get_payload_float("RP1/raw/CH1");
+    
+
+   
+    y_mat = cell2mat(cell(arr));
+%     y_mat_shift = circshift(y_mat,8192+65+47);
+    
+    %arr_payload(xxx)= y_mat;
+    % Plot input 1
+%     subplot (2,1,1)
+    plot(x_axis, y_mat);
+
+%     ax = gca;
+%     ax.XGrid = 'on';
+%     %ax.XTick = 0:osci_div:osci_div*10; 
+%     %ax.XTick = -osci_div*5:osci_div:osci_div*5; 
+%     ax.YGrid = 'on';
+%     ax.YTick = -2*osci_mag:osci_mag:2*osci_mag; 
+%     
+%     % Plot input 1
+%     subplot (2,1,2)
+%     plot(y_mat_shift);
+    grid on;
+    
+
+    
+    xxx = xxx+1;
+    
+end
+    
+    % Stop the aquisition
+    myMqtt.pub_mqtt(broker_ip, "RP1/CONFIGURE/RECONFIG", "STOP");
+    
+
+    
+    
+
+