There is a prototyping board for that software. You still have to design a flex cable for it. To get a dev kit still will cost you a few hundred bucks for you to start prototyping anything.
Example of the OG 3DS capturecard:
Example of that Flex cable for that capturecard:
You will have to map out all the pinouts you need from a 2DS XL for the prototyping board.
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To clarify what is above, you need several things if your going to make your own capturecard.
A usb controller:
Kat uses something called a Chameleon USB controller (I can only find conflicting information on this, I don't believe the usb controller is actually called Chameleon.)
You will have to get a dev board to make your own custom drivers (library files and compiler files will come with the dev kit)
I'd recommend you use a USB C or 3 controller just for the bandwidth. The problem is if your going to be using a RPI as an intermediate to output HDMI, your going to be using a USB 2 interface controller.
A FPGA:
Kat uses a XILINIX spartan for the later n3DS and n2DS. This is used for converting the 3DS video signals into a format that the USB controller can handle.
The one he uses is no longer being sold, but you might find a used dev kit one on ebay. Or just buy what is available on the usual digikey, mouser, etc site.
The use of a HDMI port would require you have a full arm chip to process the signal, this can increase the board size used do to the amount of chips you have to have to just converting the video source to HDMI then outputing it to HDMI output.
HDMI uses 12V, that means your going to be adding an AC adapter to your design just to power the HDMI output unless your want to only be able to run your 3DS to an hour or so.
Your 2/3DS battery has to also power your capturecard.
You want to talk to loopy if you seriously want to make your own capturecard.
Example of the OG 3DS capturecard:
Example of that Flex cable for that capturecard:
You will have to map out all the pinouts you need from a 2DS XL for the prototyping board.
---
To clarify what is above, you need several things if your going to make your own capturecard.
A usb controller:
Kat uses something called a Chameleon USB controller (I can only find conflicting information on this, I don't believe the usb controller is actually called Chameleon.)
You will have to get a dev board to make your own custom drivers (library files and compiler files will come with the dev kit)
I'd recommend you use a USB C or 3 controller just for the bandwidth. The problem is if your going to be using a RPI as an intermediate to output HDMI, your going to be using a USB 2 interface controller.
A FPGA:
Kat uses a XILINIX spartan for the later n3DS and n2DS. This is used for converting the 3DS video signals into a format that the USB controller can handle.
The one he uses is no longer being sold, but you might find a used dev kit one on ebay. Or just buy what is available on the usual digikey, mouser, etc site.
The use of a HDMI port would require you have a full arm chip to process the signal, this can increase the board size used do to the amount of chips you have to have to just converting the video source to HDMI then outputing it to HDMI output.
HDMI uses 12V, that means your going to be adding an AC adapter to your design just to power the HDMI output unless your want to only be able to run your 3DS to an hour or so.
Your 2/3DS battery has to also power your capturecard.
You want to talk to loopy if you seriously want to make your own capturecard.
Last edited by how_do_i_do_that,