VGA to HDMI conversion

[HasHx]

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.

 

[ZASto]

Buy one of these:
https://www.aliexpress.com/item/327...chweb0_0,searchweb201602_1,searchweb201603_60
disassemble it and try to figure out how analog VGA is digitized.
And this:
https://www.aliexpress.com/item/185...chweb0_0,searchweb201602_1,searchweb201603_60
is for extraction of digital audio from HDMI.

 

[HasHx]

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

 

[FlyingDutch]

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-example-design-using-vivado-for-mimas-a7-fpga-development-board/

https://electronics.stackexchange.com/questions/27882/how-to-utilize-hdmi-port-on-fpga-basic

Regards

 

[HasHx]

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?

 

[filip.amator]

You can get some HDMI examples from here:
**broken link removed**

 

[FlyingDutch]

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-spartan-6-fpga-development-board-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-video-artix-7-fpga-trainer-board-for-multimedia-applications/

dedicated to video processing.

Kind regards

 

[alexanealessia]

In some situations, it may be necessary to send a VGA signal from a computer to an HDMI connection on a newer display, TV, or projector. Using a VGA to HDMI Scaler/Converter, allows you to connect your computer to any device requiring an HDMI connection.

 

[mariah1902]

Yes it is possible but you have to buy an adapter for that. Search on website and see where the adapter is available. Order online.

 

[metteomercatale]

In some situations, it may be necessary to send a VGA signal from a computer to an HDMI connection on a newer display, TV, or projector. Using a VGA to HDMI Scaler/Converter, allows you to connect your computer to any device requiring an HDMI connection.

Agreed. I had misconception before but you are right such situations are very much possible.