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  1. #1
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    VGA to HDMI conversion

    Hello,

    I have been working on a project where I need to convert VGA video signal into HDMI, is there any chips for this? i searched a lot and found a couple of chinese manufacturers and was hoping to find something different from that.

    I also would like to know if there is any way to extract audio from HDMI signal and put it on a separate audio connector?

    Thanks.

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    Re: VGA to HDMI conversion

    Buy one of these:
    https://www.aliexpress.com/item/3276...chweb201603_60
    disassemble it and try to figure out how analog VGA is digitized.
    And this:
    https://www.aliexpress.com/item/1857...chweb201603_60
    is for extraction of digital audio from HDMI.
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  3. #3
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    Re: VGA to HDMI conversion

    Thanks, they are using Chinese chips that I found their likes but i prefer something that can be procured easily and have clear datasheets.



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    Re: VGA to HDMI conversion

    Quote Originally Posted by HasHx View Post
    Thanks, they are using Chinese chips that I found their likes but i prefer something that can be procured easily and have clear datasheets.
    Hello,

    look how HDMI is implemented on FPGAs (it is basically VGA + TMDS coder). See for example these links:

    https://www.fpga4fun.com/HDMI.html

    https://numato.com/kb/hdmi-output-ex...lopment-board/

    https://electronics.stackexchange.co...-on-fpga-basic

    Regards


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  5. #5
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    Re: VGA to HDMI conversion

    Well, guess i will have to go that way probably as I have many side functionalities along with that one. Thanks!

    Do you have any idea about the cost comparison for both methods?



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    Re: VGA to HDMI conversion

    You can get some HDMI examples from here:
    http://hamsterworks.co.nz/mediawiki/.../FPGA_Projects



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  7. #7
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    Re: VGA to HDMI conversion

    Quote Originally Posted by HasHx View Post

    Do you have any idea about the cost comparison for both methods?
    Hello,

    the cost of FPGA board is higher, but it is one time cost. After buying FPGA board you can use it for many projects. I can recommend you cheap FPGA board proper to implement such HDMI projects:

    https://numato.com/product/mimas-v2-...with-ddr-sdram

    It cost 50 $ (US). Of course, if you want to spend more choice is wide. For example such board:

    https://store.digilentinc.com/nexys-...-applications/

    dedicated to video processing.

    Kind regards



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