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Problem getting USB running on Ultra96 v2 under UBUNTU 16.04.LTE VM

drbarryh

Hello All, I am having trouble getting both my USB to work and my SDK to connect to my ULTRA96-v2 board under the UBUNTU 16.04 LTE VM,

 

I refer to the following course document:  MPSoC_HW_2018_3_lab_2_v01_u96.pdf

and specifically to LAB 2 Experiment 4,

 

Page 36, Figure 51 – Select the Xilinx JTAG USB Device in Ubuntu if i click on the USB link as shown i usually get an error message

about the USB already being busy.

 

Also when i look in the /dev/ Directory i cannot find an ttyUSB1 entry, in fact i don't see

any USB entries at all. I can see under Windows 10 that the JTAG and USB UART has enumerated ...in my machine to USB serial port 10

 

Then when i try and run the program either in the debugger or just as a run application. i get an error about not being able

to find an A53 processor ..so basically no joy yet !

 

Has anybody else faced these issues and have any suggestions as to what is going wrong ?

 

Many thanks for any help,

Cheers Dr Barry H

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  • 0

    Did you install the missing cable drivers?  "Cable Drivers are no longer installed by this installer under Linux. See instructions in the Install Missing Cable Drivers section of this document."

     

    See page 44 of the VirtualBox_Installation_Guide_2018_3_v1_12.pdf for installation instructions.

     

    Also, were you careful to install Ubuntu 16.04.4 or 16.04.3?  I had a problem when I just installed the the latest LTS version which was 16.04.6 when I did it.  Xilinx is pretty serious about specific OS version compatibility.  The problem occurred in Vivado in one of the later HW labs.

Reply
  • 0

    Did you install the missing cable drivers?  "Cable Drivers are no longer installed by this installer under Linux. See instructions in the Install Missing Cable Drivers section of this document."

     

    See page 44 of the VirtualBox_Installation_Guide_2018_3_v1_12.pdf for installation instructions.

     

    Also, were you careful to install Ubuntu 16.04.4 or 16.04.3?  I had a problem when I just installed the the latest LTS version which was 16.04.6 when I did it.  Xilinx is pretty serious about specific OS version compatibility.  The problem occurred in Vivado in one of the later HW labs.

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  • 0 in reply to ralphjy

    Hi Ralphyj, thanks for the reply and suggestions. Yes i did all of what you mentioned. I have a VM with UBUNTU 16.04.4 LTE installed and i did install the missing cable drivers.

     

    And then i checked my UBUNTU VM version...and sure enough :

    barry@barry-VirtualBox:/dev$ lsb_release -a

    No LSB modules are available.

    Distributor ID: Ubuntu

    Description: Ubuntu 16.04.6 LTS

    Release: 16.04

    Codename: xenial

     

    It seems i have installed the wrong version then.....what a pain ! Is there any easy way to change the UBUNTU VM to 16.04.4 LTS or do i need to go through the entire VM installaion guide again ?

     

    Also, where should i get the correct version of UBUNTU from please ? I thought i had done it right the first time but must have clicked on the wrong link !

     

    What happens under this VM is that i see the USB under windows and under the UBUNTU VM ...under  Devices -> USB ->  XILINX JTAG+serial (0700) but when

    i click on it and the look in /dev/

     

    ls ttyUSB* .....i get nothing found ..

     

    Back to the drawing board ? image

     

    cheers, Dr Barry

  • 0 in reply to drbarryh

    Hi Barry,

     

    Sometimes this stuff ends up being harder than it should be. I don't know of an easy way to downgrade minor versions.  I usually just load the version that I want.  You may have done that but if you are not careful and allow the OS to update, it will happily advance you to the next minor version.  If you haven't loaded a specific version before, you need to search for the version that you want in the directory of older versions.  In this case http://old-releases.ubuntu.com/releases/16.04.4/.  You have to wade through all the choices to get the version that you want which in my case was the 64bit desktop.

     

    Of course, this is not your USB problem.  I did not have USB issues so I'm not sure what your problem is.  Since you can see the USB port in Windows and installed the Ubuntu drivers and cannot see the USB device in Ubuntu, the only thing I can think of is that the USB interface either did not install or is not enabled in VirtualBox.  Do you recall it asking to install drivers during installation of VirtualBox?

    image

     

    Unfortunately, I am not a VirtualBox expert so maybe others can help.  If you check the settings in your VM do you see a USB controller and is it enabled?  Here is what I have for the VM I am running for a Minized Hackster tutorial:

    image

     

    Hope you can get this fixed.

     

    Ralph

  • 0 in reply to ralphjy

    Hello again Ralph,

     

    I am wondering of you can please tell me if this looks like the correct UBUNTU version to install to get my VM working :

     

    From this location:  Index of /releases   resolved to: http : // old-releases.ubuntu.com/releases/16.04.4

     

    And i am thinking of using This file : 

     

    ubuntu-16.04.4-desktop-amd64.iso2018-02-28 19:151.5G

     

     

    It seems to be the correct version, UBUNTU_16_04_4  x64 bit ... i am running a x64 bit Intel i7 based PC which has windows 10 x64 Pro installed as it main OS.

     

    Thanks for the help, Dr Barry H

  • 0 in reply to drbarryh

    Yes, I’m running the same PC configuration and have used that image.

     

    If you end up working with the Xilinx tools a lot, I would recommend getting a large external USB3 drive so that you can have VMs configured for the specific tool and OS versions.  I have an 8TB drive that I allocate in 500GB fixed segments for VMs.  You only need that large a segment if you play a lot with PetaLinux.

  • 0 in reply to ralphjy

    One caveat about using multiple VMs that I should mention.  If you use a node locked license, each VM is treated as a separate host.  Re-hosting is straightforward but makes moving between VMs aggravating.  Good news is that if you are using Vivado Webpack or Vivado with Vitis, you won't have any issues.  Also, floating or network licenses should work well.

  • 0 in reply to ralphjy

    In order to use USB2.0 or better,   will need an additional download to match the Virtual box version you now have:

     

    VirtualBox 6.1.4 Oracle VM VirtualBox Extension Pack

    Support for USB 2.0 and USB 3.0 devices, VirtualBox RDP, disk encryption, NVMe and PXE boot for Intel cards. See this chapter from the User Manual

    for an introduction to this Extension Pack. The Extension Pack binaries are released under the VirtualBox Personal Use and Evaluation License (PUEL)

    . Please install the same version extension pack as your installed version of VirtualBox.

     

    Clem

  • 0 in reply to clem57

    Do read the user guide on how to filter USB device!