Discussion DS TV out

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I've been researching the process of doing a TV out mod from a DS (likely RGB, but a component/composite option would be nice too). I have dug up seemingly all of the information available, which is all around 10 years old. Here is the main one:

https://nfggames.com/forum2/index.php?topic=2254.0

This is a data sheet for a supposedly similar screen to the DS, using the same signal type and such
https://media.digikey.com/pdf/Data Sheets/Sharp PDFs/LQ030B7DD01.pdf

On the forum post I linked, it talks about getting the RGB data from some solder points on the DS board. Easy enough. Then it talks about "counting clocks" and I have absolutely no idea what that means, so I can't really learn much about it on my own. I mainly just want to figure out how to get the sync signal out of the DS, and then I can hopefully make a VGA mod, or do an RGB out to a modded CRT. How do I know if the DS is using the right frequency and how can I change the frequency to be proper for a display? Thats where I'm at right now with this.
 

Aurelio

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This is probably the most complete pinout: https://problemkaputt.de/gbatek.htm#pinoutslcdcables
In order to get video out of that you need at least a DAC (to get analog RGB signals) and some logic to get the proper sync signals (probably you only need to get them from SPL and SPS).
The hard part is that DS' resolution is 256x192, which is not a standard one for VGA, so you would need to design a resampler using an FPGA, similar to what Loopy did few years ago:
 
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