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NTSC composite video into OMAP4460?

Bob Cunningham
Prodigy 50 points

Other Parts Discussed in Thread: TVP5151, TVP5150AM1, TVP5150, TVP5146

I'm looking for a single-chip solution to get an analog NTSC composite video signal into the OMAP4460.  I had initially hoped to use a TI TVP515x, but have since learned that the CCP (parallel camera interface) is not yet supported under Linux.

1. Any idea if/when parallel camera support will arrive?

2. Are there any other single-chip solutions I should consider?

Please, please, please don't make me use one of these.

Thanks,

-BobC

  • 0
    TI__Mastermind 24525 points

    TVP5151 has a CCP serial out mode too. You can hook this mode with V4L2 driver on Linux (No Ducati support for CCP).

  • 0 in reply to Mayank Mangla
    Prodigy 50 points

    I just re-checked the datasheet, and the TVP5151 digital video output is 8-bit parallel.  The only serial on the chip is the I2C interface used for configuration and control.

    I need either CSI2 or USB output, or maybe SPI (if I can find a way to make it work).

  • 0 in reply to Bob Cunningham
    Prodigy 50 points

    Anyone have any other suggestions?  I really need to know if this issue makes the OMAP4460 useless for our application.

  • 0 in reply to Bob Cunningham
    TI__Genius 10545 points

    Some answers I got after asking about this matter are:

    The best solution if OMAP4 is planned to be used is to implement the BT656 driver.

    TI has many chips which can connect with TVP51xx, such as DM6446, DM365, DM6467.

    If your plan is to use BT656 there are other 2 suggestions, TVP5150(NRND)/TVP5150AM1  or TVP5146.

    And I found next interesting links:

    http://processors.wiki.ti.com/index.php/DM646x_Complementary_Products

    http://focus.ti.com/docs/training/catalog/events/event.jhtml?sku=OLT109076

    http://www.ti.com/lit/sl/slyb099g/slyb099g.pdf

    You can get in contact with nearest TI representative, they must be able to provide information that suits your development needs (go to www.ti.com + [TI wordwide] + "Contact Us").

  • 0 in reply to Manuel Contreras
    Prodigy 50 points

    Unfortunately, our project lacks the time required to write Linux device drivers (and especially has no time to get them through the acceptance process and into the kernel tree), besides which we have no experience at all writing TI video input drivers (that's some complex hardware to manage).

    I need a ready-to-roll solution, and it seems the OMAP4 is not yet capable:  There is no software support for the CPI port, and no analog converter hardware support for the CSI ports.  Such great video processing capabilities, and no direct way to get our old-school analog composite signal to them!

    I'll look into a USB solution, but I'm not optimistic: I haven't yet found a single-chip composite NTSC/PAL to USB converter that has Linux support.

  • 0 in reply to Bob Cunningham
    TI__Genius 10545 points

    1. By your previous comments, it is clear that you need a NTSC/PAL converter

    2. I didn't mention about possible SoC for NTSC/PAL converter + USB solution since if it is available you can get an answer from contacting a TI representative, and know if this option is available or not.

    3. The only feature that you mentioned is NTSC/PAL converter, but what about other features? you can contact a TI representative to provide those and check what solution fits to your development needs.

    Note, in either case DM6446 solution could fit ok, but there are many features that haven't been mentioned and it is not possible to run a cross reference to find a solution, it is better to contact a TI representative and talk with them.

  • 0 in reply to Manuel Contreras
    Prodigy 10 points

    I've been on the same quest a few months, investigating platforms for a new product. I too lack the time to totally bring up a composite to video platform on an ARM system from scratch. 

    When I did find a driver for a Composite to USB hardware in the Linux world, it certainly did not come with sources, and it was not pre-compiled for the ARM processor. While Im still plugging along on this, I fear that the simple solution would be to use an x86 based system (COM module, etc). While I hate the later, I need to eventually commercialize my product.

    I'd be interested in knowing your findings in this

    Rich