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Data transfer between DM6467 and FPGA( Xilinx Spartan3)

Wenlong Li
Prodigy 20 points
Other Parts Discussed in Thread: TVP7002

Dir sir:

     My main processer is DM6467.  I use tvp7002 transfering video data from y/pb/pr to bt1120. And this way is ok.  But now,  I want to transfer BT601 to BT1120 using FPGA . My problem is how to change my vpif's driver in order to  capture the right video data.

  • 0
    TI__Expert 3925 points

    Hi,

     

    I am not getting your question exactly. Are you converting BT601 to BT1120 in FPGA and giving BT1120 stream to VPIF? Which standard are you using?

     

    Thx,

    Brijesh Jadav

  • 0 in reply to Brijesh Jadav80
    Prodigy 20 points

    Hi, Brijesh Jadav

         Yes, I want to convert BT601 to BT1120 in FPGA and give BT1120 stream to VPIF. Now, I don't know how to get bt1120 stream from DM6467's VPIF and how to change my capture's driver in order to capture right video data.Thank you very much.

  • 0 in reply to Wenlong Li
    TI__Expert 3925 points

    Hi,

     

    Capture and display both VPIF drivers on DM6467 supports BT1120 streams. If you send your data as known standard like 720p, 1080i, or 1080p, driver does not need any changes. There standards are already supported in the VPIF driver.  What you will need is to write a dummy slave driver which should be based on V4l2 sub-dev frame work and return standard information to VPIF driver. Please go through the TVP7002 driver to get the idea about how to write dummy slave driver.

     

    Thanks,

    Brijesh Jadav