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Digilent HDMI FMC Card with Zynq Zc702


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Hi All,

           I am newbie to zynq board, eagerly started to learn. I have digilent HDMI FMC card it supports 8,10,12 bits color depth. I am trying with pixel width 10-bits with xilinx zynq zc702 board. previously we used Avnet HDMI FMC card it supports only 8-bit pixel width.Now we are in need to move with 10 and 12-bits pixel width. 

 

  1. What are the things needed to use digilent fmc card with zync zc702 board.

   2.Where i can get drivers (c-code libs) for digilent fmc card.

   3.While its operating in 10-bit mode should i connect it with 10-bit color depth output of laptop?

   4.Can i use Avnet fmc card drivers for this digilent fmc card too ? (in this case i need to change EDID content w.r.t digilent  fmc card)

   5. Kindly help me regarding this, It would be a great help to me..!!!

 

 

I Tried as Mentioned Below :

    1.I am not having the digilent fmc card drivers to use and  compile it with  my application C-code so i used with some  changes of  Avnet fmc card driver C-codes. Also chnaged the EDID content w.r.t digilent fmc card ref Document.

 

     2.I used lenova G580 lap to connect HDMI o/p from laptop to FMC card using HDMI cable.digilent fmc card mode is pixel width is 10-bit but while looking at Graphics  card properties of Lap shows that the color depth is 32-bit output, I am sure whther it will support the 10-bit mode digilent fmc card.

  

      3.Any how, While running it I am facing the error message which is given below,

                 Error: ADV7611 has NOT locked on incoming video, aborting !

 

 

 

Thanks,

Ramesh

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Edited by KaitlynFranz
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Hi Ramesh,

 

The FMC-HDMI has two HDMI inputs: one with the ADV7611 decoder that outputs a 24-bit selectable color format video data bus, one that has the AD8195 buffer that only translates the 5 Volt HDMI signals into 3.3 Volt HDMI signals.

 

Please note that the FMC-HDMI is an FMC Mezzanine board meaning that it is a peripheral board (add-on), so the controlling software (HDL, C/C++) resides on the ZC702 board making it dependent on the FPGA/processor present on the board.

 

Here's a reference to the board: https://reference.digilentinc.com/fmc_hdmi:refmanual

 

Regarding the decoder error make sure you:

  1. Set the correct EDID into ADV7611's internal RAM, that configures the link at 10 bits per component
  2. HDMI1_HPA signal of the FMC-HDMI board is asserted
  3. If all of the above steps are completed then measure the decoded pixel clock and compare it with the video resolution's pixel clock frequency

Mihaita

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Hi Mihaita,

                  Thanks for your reply..!!

 

        I couldn't able to get the correct EDID content for ADV7611's internal RAM. Please provide me information that from where i can get the correct EDID content.

 

 

       For your information:

              I have the EDID content for ADV7611 with Avnet's fmc hdmi card, Can i use that for digilent fmc hdmi card to configure ADV7611's RAM ?

 

 

Thanks,

Ramesh

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Here's the git repository where we release some IP cores for Vivado. Inside the ip directory there's the dvi2rgb_v1_3 core that you can use for the second input of the your FMC-HDMI card, but also there's the dgl_dvi_edid.txt inside the src directory. That's the EDID that we use, you can use it as a starting point and by using this as a reference you can easily modify it to your needs. Or you could use Avnet's EDID as a starting point.

There are heaps of EDID editing software on the web if you don't want to manually edit it.

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Hi Mihaita,

                 Already the EDID content available in digilent fmc hdmi ref document which you mentioned above but they said this EDID content for HDMI2 (but i am working with HDMI1),

i tried with this data also but  still i am facing the same problem. Also Avnet's EDID content has 256 bytes but i can't see the same count in digilent fmc ref document.

Anyhow i will try my level best and then i can get help from you.

 

 

Thanks,

Ramesh

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Hi All,

         I tried a lot but i couldn't able to solve the issue. Error: ADV7611 has NOT locked on incoming video, aborting !

Please guide me to solve this issue. And please provide me any reference design.

 

Thanks,

Ramesh

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