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TDA4VM: PCIe or USB Adapter wifi solutions

Baptiste Arnou
Prodigy 60 points
Part Number: TDA4VM

Lately I have been trying to add a wifi support to the j7 board I got at work. I saw in an other post  that a PCIe card have been tested and from the drivers I have on my board I can see that only PICe cards might be supported. However I tried to compile a kernel that could  go on the board using:

- PSDKRA: psdk_rtos_auto_j7_07_00_00_11

- PSDKLA: ti-processor-sdk-linux-automotive-j7-evm-07_00_01

And there is a lot more wireless drivers than the one I currently have installed on my board. I see realtek, mediatek... Does that mean some USB wifi dongle could be supported with this kernel?

  • 0
    TI__Mastermind 23125 points

    Baptiste, 

    I am not aware anyone in our teams tested USB WIFI dongles on TDA4 EVM. You best bet is to check the chipset/family of the dongle used, and make sure they have firmware support for embedded linux kernel. Typically they got published on github. 

    A PCIe module with M.2 form factor could be a good choice, if the wifi is a permanent solution. the other thread mentioned tested for Intel 8260NGW (or other brands based on the same chipset), I also tinkered with an Atheros 9k based card.

    Let me now if you have specific requirements to install a USB card. I will ask my colleagues. 

    regards

    Jian

  • 0 in reply to jian35385
    Prodigy 60 points

    Hi sorry for the late update from me but the subject was not a priority here so I managed to have a look at it only lately. We tried to setup a wifi using:

    - https://www.amazon.fr/dp/B07RLZG522

    - https://www.amazon.fr/dp/B07PG8RWDQ

    And actually I managed to have something with a special behaviour I saw using PuTTY:

    1. I manage to setup a static (fixed ssid and password) Wifi connection in my `/etc/network/interfaces` and connect to ssh using the IP it gave me in `ifconfig` 

    auto wlp1s0
iface wlp1s0 inet dhcp
        wpa-ssid SMU_R2D2
        wpa-psk  ************************************

    $ ifconfig wlp1s0 up
    $ udhcpc wlp1s0

    2. I then tried to unplug the ethernet cable and PuTTY printed an appropriate status message: `[ 561.801716] am65-cpsw-nuss 46000000.ethernet eth0: Link is Down` but the Wifi didn't work after that. 

    3. When I replugged the ethernet cable, PuTTY printed another status message but the Wifi doesn't reset itself and is still down. 

    I won't have a lot of time to give more information about that since I'm also remote working without a physical access to the board but I thought it could still be of interest for you!

  • 0 in reply to Baptiste Arnou
    TI__Mastermind 23125 points

    Baptiste, 

    Thank you for the update. I assume the PCIe WIFI module was brought up successfully, though there are some mixed-up issues in terms of interface down/up implementation between the wired and wireless interface. please feel free to reopen or create a new ticket if your project need such support. 

    Jian