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Linux/PROCESSOR-SDK-AM335X: existing image w/ working WLAN for BeagleBoard Black.

Alexander Horn
Prodigy 130 points

Part Number: PROCESSOR-SDK-AM335X

Tool/software: Linux

Does anyone have an SD card image with a working WLAN on Beagleboard Black ? 

If so, can you post it somewhere for me to download and test ? 

I am trying to test some basic user-level wireless features, I don't need the full SDK (and it's complexity) right now. 

(yes i've tried full SDK - but included images don't have WLAN support, and applying the patches and such - despite methodically following instructions (link) - WLAN still fails, and I'd rather not burn another 3 weeks on merely getting WLAN to work) 

Thanks in advance 

  • 0
    TI__Mastermind 27240 points
    Which WLAN CAPE are you using? And, what is the processor-SDK version being used?

    Thanks
  • 0 in reply to Hari Nagalla
    Prodigy 130 points

    Hello, SDK ver 04_02_00_09

    There is no 'cape' - the wlan chip is on-board the beaglebone black.

    I learned this not in the SDK/install instructions, but on this forum post (https:/e2e.ti.com/support/wireless_connectivity/wilink_wifi_bluetooth/f/307/t/613217?tisearch=e2e-sitesearch&keymatch=beaglebone%20black%20wireless)

    " beaglebone patches on wiki are for beaglebone black board with Element 14 WL1837MOD cape .For beaglebone black wireless you don't need to apply these patches."

  • 0 in reply to Alexander Horn
    TI__Mastermind 27240 points
    I see.. so, you are using beagle bone black wireless, right?
    beagleboard.org/black-wireless

    Let me check the DTS file/configurations needed for this board..

    Thanks
  • 0 in reply to Hari Nagalla
    Prodigy 130 points

    Indeed ! The Beagle Bone Black Wireless is what we were recommended to use, and what we've been working with.

    I've since got past the 'unknown symbols' and feel strongly the last remaining step is indeed the DTS/device tree. I've tried variations from this post, and while I can load the (patched) modules, nothing actually binds to the hardware. (see details in my other post) 

    So - yes, an image would still help (subject of this page/post) !

    but so would explicit instructions for device tree update. (subject of this other post, with more detail.)

    Thank you for your help ! 

  • 0 in reply to Alexander Horn
    TI__Mastermind 27240 points

    I briefly tried with the attached DTB file on BBBW with TISDK4.01 and it went ok.. Please copy this DTB to the /boot folder in rootfs..

    root@am335x-evm:/usr/share/wl18xx# cat /proc/device-tree/model

    TI AM335x BeagleBone Black Wirelessroot@am335x-evm:/usr/share/wl18xx#

    root@am335x-evm:/usr/share/wl18xx#

    root@am335x-evm:/usr/share/wl18xx#

    root@am335x-evm:/usr/share/wl18xx# uname -a                    

    Linux am335x-evm 4.9.41-ge3a80a1c5c #1 PREEMPT Thu Oct 26 11:06:35 CDT 2017 armv7l GNU/Linux

    root@am335x-evm:/usr/share/wl18xx# ifconfig -a

    lo        Link encap:Local Loopback  

             inet addr:127.0.0.1  Mask:255.0.0.0

             inet6 addr: ::1%763860/128 Scope:Host

             UP LOOPBACK RUNNING  MTU:65536  Metric:1

             RX packets:2890 errors:0 dropped:0 overruns:0 frame:0

             TX packets:2890 errors:0 dropped:0 overruns:0 carrier:0

             collisions:0 txqueuelen:1

             RX bytes:219856 (214.7 KiB)  TX bytes:219856 (214.7 KiB)

    sit0      Link encap:IPv6-in-IPv4  

             NOARP  MTU:1480  Metric:1

             RX packets:0 errors:0 dropped:0 overruns:0 frame:0

             TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

             collisions:0 txqueuelen:1

             RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

    usb0      Link encap:Ethernet  HWaddr 2E:B8:0E:E2:11:F1  

             inet addr:192.168.7.2  Bcast:192.168.7.3  Mask:255.255.255.252

             UP BROADCAST MULTICAST  MTU:1500  Metric:1

             RX packets:0 errors:0 dropped:0 overruns:0 frame:0

             TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

             collisions:0 txqueuelen:1000

             RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

    wlan0     Link encap:Ethernet  HWaddr 80:30:DC:F4:63:52  

             inet addr:192.168.0.123  Bcast:192.168.0.255  Mask:255.255.255.0

             inet6 addr: fe80::8230:dcff:fef4:6352%763860/64 Scope:Link

             UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

             RX packets:11 errors:0 dropped:0 overruns:0 frame:0

             TX packets:63 errors:0 dropped:0 overruns:0 carrier:0

             collisions:0 txqueuelen:1000

             RX bytes:2478 (2.4 KiB)  TX bytes:11591 (11.3 KiB)

    root@am335x-evm:/usr/share/wl18xx# ping 192.168.0.1

    PING 192.168.0.1 (192.168.0.1): 56 data bytes

    64 bytes from 192.168.0.1: seq=0 ttl=64 time=19.925 ms

    64 bytes from 192.168.0.1: seq=1 ttl=64 time=8.236 ms

    64 bytes from 192.168.0.1: seq=2 ttl=64 time=8.634 ms

    ^C

    --- 192.168.0.1 ping statistics ---

    3 packets transmitted, 3 packets received, 0% packet loss

    round-trip min/avg/max = 8.236/12.265/19.925 ms

    https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/968/am335x_2D00_boneblack_2D00_wireless.dtb

  • 0 in reply to Hari Nagalla
    Prodigy 130 points
    Thank you !

    I copied the attachd DTB into /boot.

    I then manually inserted all wireless kernel and modules.

    dmesg gives no errors.
    yet there is no wlan0.

    note:

    root@am335x-evm:/boot# cat /proc/device-tree/model
    TI AM335x BeagleBone Blackroot@am335x-evm

    uname -a
    Linux am335x-evm 4.9.59-ga75d8e9305 #1 PREEMPT Sat Dec 23 09:46:08 EST 2017 armv7l GNU/Linux

    comments:

    note boot contains a lot:
    root@am335x-evm:/boot# ls -al
    am335x-bone.dtb -> devicetree-zImage-am335x-bone.dtb
    am335x-boneblack-iot-cape.dtb
    sm335x-boneblack-wireless.dtb
    am335x-boneblack.dtb
    am335x-boneblack.dtb.orig -> devicetree-zImage-am335x-boneblab
    m335x-bonegreen.dtb -> devicetree-zImage-am335x-bonegreen.dtb
    am335x-evm.dtb -> devicetree-zImage-am335x-evm.dtb
    am335x-evmsk.dtb -> devicetree-zImage-am335x-evmsk.dtb
    am335x-icev2-pru-excl-uio.dtb -> devicetree-zImage-am335x-iceb
    am335x-icev2.dtb -> devicetree-zImage-am335x-icev2.dtb
    devicetree-zImage-am335x-bone.dtb
    devicetree-zImage-am335x-boneblack.dtb
    devicetree-zImage-am335x-bonegreen.dtb
    devicetree-zImage-am335x-evm.dtb
    devicetree-zImage-am335x-evmsk.dtb
    devicetree-zImage-am335x-icev2-pru-excl-uio.dtb
    devicetree-zImage-am335x-icev2.dtb
    vmlinux-4.9.59-ga75d8e9305
    Image -> zImage-4.9.59-ga75d8e9305
    zImage-4.9.59-ga75d8e9305
    root@am335x-evm:/boot#

    should I get rid of anything ?

    ps
    if you can DD your sdcard, I'll download and I'm good to go :) I don't need the SDK right now, I just need wlan0.
  • 0 in reply to Alexander Horn
    TI__Mastermind 27240 points
    The SDCARD with TISDK is a bit too fat (4GB).. Let me see, how I can share it to you..

    I would like you to try one more thing..
    It seems, your device is picking 'AM335xBeagleBoneBlack' dtb, not the the 'BeagleBoneBlackWireless' dtb.. You can do the following..
    It appears the name is spelled correctly.. rename it to 'am335x-boneblack-wireless.dtb'. If, it still does not pick the right dtb file.. Rename 'am335x-boneblack.dtb' to some thing else and make a symbolic link between 'am335x-boneblack.dtb' to 'am335x-boneblack-wireless.dtb'..

    We, want to make sure, 'cat /proc/device-tree/model' shows bone black wireless..

    Thanks
  • 0 in reply to Hari Nagalla
    Prodigy 130 points

    Thank you ! Trying now... 

  • 0 in reply to Alexander Horn
    Prodigy 130 points

    Nice work, sir ! That was the trick. I had to symlink 'am335x-boneblack.dtb' to 'am335x-boneblack-wireless.dtb'.

    now

    root@am335x-evm:~# cat /proc/device-tree/model

    TI AM335x BeagleBone Black Wireless

    and I don't have to manually load modules, to get a wlan0. 

    Thanks again !!!!

    (And I'd vote someone does a bit of updating to Appendix A so future bboard black wireless users don't have to swim through the forums after the instructinos don't quite work for them :)