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AM572x GP EVM camera board does not connect

Christopher Hsu
Prodigy 30 points
Other Parts Discussed in Thread: AM5728, ASH

Just got the AM5728 EVM two days ago and I'm trying it out. Included in the box is a Camera Board as shown in the manuals. I mounted and screwed the board in, yet when I run the demos which use the camera (video analytics, for example) it always give me errors saying no camera is connected. Sometimes it says the device number is wrong, which is defaulted to 1. 

I'm wondering if someone can provide more insight for me on this! Thanks in advance!

  • 0
    TI__Guru**** 393215 points
    Have you checked that the camera board is seated properly in the connector slot? What do you mean by "screwed the board in"? There is no need to use screws, if you have - check that they are not overtight.
  • 0 in reply to Biser Gatchev-XID
    Prodigy 30 points

    Hi thanks for the quick response. For my board setup (which I received from a colleague who I believe got it from a distributor) has two bars next to the connector slot, like this. Is there a way with the Matrix GUI to check what devices are connected at the moment? I see the orange light on the back of the camera board lit, but the device doesn't seem to be working according to the EVM since this application doesn't run.

    Edit: Don't think tightness has anything. I just stick the board all the way in but not too forceful or anything. I just re-mounted it again and it's the same.

  • 0 in reply to Christopher Hsu
    TI__Guru 65405 points
    Hi Christopher,

    I suggest you to restart your EVM board when the camera is already connected. Then you can check whether your camera is initialized by your EVM board by executing the following console command (If you have no debug console you can use telnet connection but it is necessary ethernet connected):
    root@am57xx-evm:~# ls -l /dev/video*

    the output should be:
    crw-rw---- 1 root video 81, 1 Jul 8 22:45 /dev/video0
    crw-rw---- 1 root video 81, 2 Jul 8 22:45 /dev/video1
    crw-rw---- 1 root video 81, 0 Jul 8 22:44 /dev/video10

    If the "/dev/video1" entry presents the camera is initialized.

    An other way to verify whether the camera is initialized is to search in kernel log "dmesg" command output for "vip2-s0: device registered as" message.
    If no one of the two ways doesn't find the camera probably there is some hardware problem with camera connector or with camera board.

    BR
    Tsvetolin Shulev
  • 0 in reply to Cvetolin Shulev-XID
    Prodigy 30 points
    Hi there. Thanks for the reply. My output showed video0 and video10 but not 1. I also couldn't find the dmesg command nor the output message. So I guess it is some hardware problem. Thanks!
  • 0 in reply to Christopher Hsu
    TI__Guru 63125 points
    Make sure the flex circuit connector from the camera module is properly seated in the surface mount connector on the camera board.

    Regards,
    Paul
  • 0 in reply to peaves
    Expert 2570 points
    Hello @Mastermind,

    Thanks for your replies. but I am facing the same issues regarding camera detection. I also can see only video1 and video10 but not video1. Also I re-connected many times the camera module with different modules as well., but the issue remains same.
    Please suggest the solution...

    Thanks n Regards,
    /Ash
  • 0 in reply to Hsa S
    TI__Guru 65405 points
    Hi Ash,

    If you are using PDK release without any changes the only reason for issue with camera detection is in the hardware. If there is no issue with the camera connector which is the most common case you should check the data or power lines on the board.

    BR
    Tsvetolin Shulev
  • 0 in reply to Cvetolin Shulev-XID
    TI__Mastermind 26215 points

    Ash,

    if you have reason to believe that the Camera Board is not working from the beginning, please work with your supplier (Distributor or our TI Store if you bought the board via our TI Store) to start a RMA process (replacing the defective board).