MATLAB: UDP communication Raspberry pi with direct Ethernet connection

communicationraspberry pisimulinkudp

Hi, I recently downloaded and installed Raspberry Pi package (Simulink+MATLAB) and chose direct PC connection.

I tested the sine wave model (External mode) and it worked just fine. I even tested it by removing ethernet cable and reconnecting it and it was disconnecting and resuming on the plot. Also pinging the IP of raspberry pi is success.

The problem is when applying UDP communication example, I receive nothing. I made sure that Normal mode is selected and then deploying the on hardware . I tested when assigning my host IP and another time with '255.255.255.255' (Broadcast). Both got me nothing when running host communication model.

Here is the example Communicating with Raspberry Pi Hardware

My question is, is it possible to receive UDP packets from Raspberry Pi if Direct connection is selected? Hope someone could assist me.

Thanks in advance. I use Model B.

Best Answer

I discovered the problem guys, I had to configure my Ethernet adapter to have static IP . After that all things went good.

Related Solutions

MATLAB: How to use the Raspberry Pi Support Packages over a wireless connection

The MATLAB and Simulink hardware support packages for Raspberry Pi use an SSH connection to communicate with the hardware. This will work regardless of whether there is a wired or wireless connection.

To communicate with the Raspberry Pi over WiFi you will need:

The Raspberry Pi must be connected to a wireless network that the computer running MATLAB can also access. The simplest way of achieving this is to have both the device and the computer connected to the same wireless network.
The IP address of the Raspberry Pi, see: http://uk.mathworks.com/help/supportpkg/raspberrypi/ug/get-the-ip-address-of-the-raspberry_pi-hardware.html

Verify that your network is correctly configured by pinging the IP address of the Raspberry Pi. In a Command Prompt (Windows) or terminal (Linux, Mac) run the command:

ping RPI_IP

where RPI_IP is the IP address of the Raspberry Pi. If it is successful this should return a reply and time information, if not it reports that the request timed out.

Once you can successfully ping the Raspberry Pi, configure MATLAB or Simulink to use the correct IP address to communicate with the hardware:

MATLAB Support Package

When executing the RASPI command, specify the device's IP address, username and password:

http://uk.mathworks.com/help/supportpkg/raspberrypiio/ref/raspi.html

Simulink Support Package

When using the "Run on Target Hardware" window to deploy your model, set the "Host name" field to the device's IP address, and the username and password fields to the username and password for your device:

http://uk.mathworks.com/help/supportpkg/raspberrypi/ug/create-and-run-an-application-on-raspberry_pi-hardware.html

Note that the Simulink package also supports the standalone operation. This means that a connection is needed for installing the support package and deploying any models onto the Raspberry Pi, but it is possible to run the created code without any connection to Simulink once a model is deployed.

MATLAB: How to receive UDP broadcast data in MATLAB using Instrument Control Toolbox

You can receive UDP broadcast data using the UDP functionality in Instrument Control Toolbox.

If you are only receiving UDP packets, and not sending out any UDP packets, the only relevant properties of the UDP object are LocalHost and LocalPort; the RemoteHost and RemotePort are not relevant in this case.

LocalHost is the host name or IP address of the Ethernet adapter you are receiving the UDP packets on, and the LocalPort is the port number you are receiving the UDP packets on.

Note: If you don't specify LocalHost (or if you set it to an empty string), you will receive UDP packets on all available Ethernet interfaces at the specified LocalPort.

% Listen on all available Ethernet interfaces at local port 8000.
% Specify a LocalHost (host name or IP address) if known
u = udp('', 'LocalHost', '', 'LocalPort', 8000);
fopen(u);
% Receive a single UDP packet
packetData = fread(u);
% Clean up
fclose(u);
delete(u);
clear u

Best Answer

Related Solutions

MATLAB: How to use the Raspberry Pi Support Packages over a wireless connection

MATLAB: How to receive UDP broadcast data in MATLAB using Instrument Control Toolbox

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