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Camera functionality?

Hello!

I notice that the Sitara 335X does not include a standard camera interface. Would it be possible to implement such an interface with a PRU etc? If so will TI be looking to offer such functionality out of the box for their SDKs?

Many thanks

  • Noticed that too...

    Real great pity. I like this chip otherwise. Had a look at the PRUs to do this but I see no chance of accepting a 27Mhz data stream AND converting YUV to RGB in real time (if you want the chip to do a few other things as well). You could do single frame capture but not live video.

    I'm busy designing with the AM3730 and am considering changing to the AM335x as this chip makes life a lot easier (0.8mm ball pitch and I can ditch more than 1/2 dozen level translator chips - what a blessing !).

    So what to do with video ?

    My solution is to use a Fujitsu GPU via a small FPGA to fake a 32bit bus. I use the "MINT" in some of my products - works well. Multi layer frame buffer, nice video performance and also analog RGB out plus digital for a panel. Easy to use. In this application I use it only as external frame buffer using DMA to pipe the local frames over to the GPU, not using any of the internal drawing functions. Not using the internal LCD part at all on the Ti. Fujitsi also has the " Scarlet" chip which has a built in 2Mbyte frame buffer so this becomes single chip (plus a small FPGA as glue).
    This sounds like a strange solution but it works out as the GPU is quite cheap and I save not only all the level translators but also a VGA DAC which is almost the same price.

    Added advantage is near complete offload of LCD image related hit on memory bandwidth - uploads to GPU can be at a lower rate than normal screen refresh. Using this for up to 1024x768 at 20 full frames/second but it could go to 30+ if needed.

    AM3730 or 3715 with 3.3V I/O would however be the ideal solution for me. I hate those level translators.

    Rainier

     

  • Video isn't such an issue for me, I plan on using web-streaming.

    The situation wouldn't be so bad if more bridge chips were available. OmniVision make a USB 2.0 bridge chip, limited streaming but can handle upto 5MP stills, problem is there's a minimum order. Do you know of any I could just go on-line and buy as a one off?

     

    Cheers