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MATLAB can not connect to ZedBoard through Ethernet

Former Member

Hello,

Iu2019m trying to use the external mode in MATLAB (2015b) with ZedBoard (Rev. D) as the target hardware.

I have done all the configurations required through u201Ctargetupdateru201D function of MATLAB.

I use the direct connection between MATLAB and Zedboard.

Host PC Network Setting:IP: 169.254.1.1 - Mask: 255.255.0.0

ZedBoard:IP: 169.254.1.10 - Mask: 255.255.0.0

Connection is done through a RJ45 Cat.5e cable.

I can ping the ZedBoard (IP: 169.254.1.10) from my host PC (both sending and receiving data).
I can log in to the linux system on Zedboard through UART (Putty terminal) and I have verified the ip address of ZedBorad with u201Cifconfigu201D command.
I can log in to the linux system on Zedboard through UART (Putty terminal) and ping my host pc (IP: 169.254.1.1) when my firewall is off (both sending and receiving data).
I can log in to the linux system on ZedBoard through SSH (Putty terminal, IP: 169.254.1.10, port 22).

Yet, when I run the commands:
z = zynq;
z = z.SetupZynqHardware;
z = z.CheckConnection;


Matlab issues the following error:
"Error using zynq.util.LinuxServices/checkConnection (line 410)
Cannot connect to Zynq Hardware at IP Address "169.254.1.10".
Click here to view the troubleshooting guide and verify the IP Address settings of your hardware."

I have changed Host PC ip address to 169.254.1.5: It didnu2019t work
I have changed the network cable: it didnu2019t work
I tried crossover Ethernet cable: it didnu2019t work
I tried to connect both PC and ZedBoard to our server, I still could ping both of them and yet MATLAB couldnu2019t connect to ZedBoard.

Iu2019m out of ideas how to fix this problem.
Could you please help me and explain to me what I have to do?

Thank you

  • 0

    Hello Ali,

    You've done a great job of debugging.  That's everything I would have tried in my lab. 

    The fact that Simulink reports back the correct IP address tells us that the COM serial connection is alive.

    The fact that you can ping both directions tells us that the ethernet communication is alive and making through your firewall.

    I assume that you kept your firewall disabled while trying to connect from Simulink?

    One other thing that you might try is adding an exception for MathWorks to your firewall. That's a better long-term fix, but probably not the issue your battling.

     

    Have you tried a ping from the MATLAB command prompt?

    dos('ping 192.168.0.1')  ---> this is my router address

     

    It appears that ZedBoard is functioning correctly, so I would recommend opening a support request @ MathWorks.

     

    Thanks,

    Matt

  • 0 in reply to mbrown

    I forgot to suggest disabling your anti-virus software.  We've seen cases that real-time anti-virus protection blocks traffic initiated from MATLAB.

  • 0 in reply to mbrown


    Hi Matt,

    thanks for your answer.

    I have tried the pring command from MATLAB and it works.
    However, I still cannot connect to ZedBoard. Basically when I cannect directly to my laptop, my network setting issues the message: "not identified network". So probably either the network setting on my laptop or the network setting on the linux system (which by the way is generated through MATLAB targetupdater function) is incorrect.

    I have disabled the firewall and auntivirus on my laptop when I try to connect to ZedBoard.

    Ali

  • 0

    Hi Matt,

    Meanwhile I was able to solve the problem and enable the ethernet communication between MATLAB and Zedboad.

    I only had to delete the "saved sessions" which I had in PuTTY and put the Zedboard ip address as the "Default Setting" in PuTTY.

    I was not expecting such a problem at all.

    Now the MATALAB can communicate with Zedboard through ethernet and I can use the External Mode in MATLAB.

    Regards,
    Ali

  • 0 in reply to Former Member

    Yeah, I solved the problem in the same way.

    Thank you so much Ali!

    Regards,

    Cerilet

  • 0

    Hi everyone,

     

    I have a problem at the moment to run the support package configuration.  When I run "“targetupdater” command inMATLAB, it shows me an error which says " Error: Connect the Hardware   Undefined function or variable 'mxgetnicinfo'. Do you know how to solve it?

    Thanks in advance,

    Romel