damn guys, this looks very promising !
Looks like a very thorough work.
So, these will be available for purchase when you’re done ?
Do you already have a general idea of the price it would go for ?
Oh, yes, does it need a power supply ? I tried to skip fast through the thread but couldn’t spot that info.
No such thing as a VGA -> HDMI cable (unless you’ve found some weird 3rd party product that is violating specs.). You can buy VGA to DVI-A, but not VGA to DVI-D/HDMI. DVI-D is Digital (HDMI compatible, so long as your monitor/TV does not require HDCP). DVI-A is Analog (VGA compatible).
you will loose all audio with that cable
VGA is a analog signal where hdmi is digital
To use that cable you will need some sort of analog to digital converter there is also a good chance of lag
It just makes more sense to get the native rgb signal form the system instead of trying to convert the signal to something that the output
Most lcd/plasma panels have a VGA input anyway, so messing with the conversion isn’t worth the effort. If you do want to make it more crt like however, there is another type of transcoder that you can convert into component, which is perfect if you want to remove all the jaggies you shouldn’t have in the first place.
Remember this is low res you’re trying to achieve here. Going any more high def is the opposite of what you’re trying to accomplish.
Supposedly Pin 9 can be used as +5V by some devices, but I wouldn’t trust that. Only guaranteed signals are the color/sync signals and Ground. Everything else is totally optional. If I were designing this I’d find a boatload of quality phone chargers (where the output voltage is nice and smooth) for cheap and just throw one in with every order. You should be able to pick up bulk name brand (Motorola and the like) +5V @ 1A chargers w/ barrel style connectors from surplus sellers for a couple $ ea.
-ud
or you can just tap into the scaler board for the 5v power easier and cleaner
when you say “some devices” are you talking about the scaller boards or game system?
I’m pretty sure most people on this site are going to go with a gbs -8220 if there going for a scaler. I know its not the best but its so much cheaper and I’m pretty sure most people on this site are not hardcore enough into retro games to go with a scaler that goes for $300+ when they will never notice a difference between it and the $30 gbs-8220
but when you speak of issues with pin 9 powering the board your speaking of scalers having issues. This version as of right now is powered by pin 14 (vSync)
No, I’m not. If you want to design a product that plays well with any device on the planet with a VGA output, you don’t want to rely on anything uncertain. Thusly, supplying power by some means other than ambiguous pins is the most desirable design.
-ud
It’d be nice to have the board not requiring a power supply (say a barrel connector if external supply is needed) if the board doesn’t work properly on system X. Just saying
Vga is just the connector the scanline Generator is meant to make games look the way they were designed to look 90% of ps2 all ps1 saturn and all previous gen systems with the exception dreamcast all were ment for displays that do 240 lines not designed for current lcd/plasma’s were the standard is 480
so the scanline genarator is ment to be used in conjuction with a scaler a device RGB signal (best signal) that takes the 240 and turns them into 480 doubling the lines
when you double the lines of the rgb signal the colors are very crisp so every corner of the pixel is visible its like before you were looking thru a cloud with rca or S-video signal
another example that maybe easier to follow
You take a girl out to this restaurant but it really dark so what you can see restaurant looks okay but its dark and you missing details of how she looks. this is what you get with a s-video or rca (yellow plug)
ok take the same situation but this time the restaurant is bright/vivid and you can see this girl perfectly every damn pore wrinkle So now you think its nice you can see her pretty dress but oh shit your girl is fugly and needs some makeup the genarator is the makeup cleans the details up
sorry got off topic but unfortunately people in the US dont have a Scart cables like European/Asia that take your systems video and separates the red, green and the blue so I believe toodles is going to make a striper that will allow you to plug a scart or custom vga into you system
arcade forge already has one called the sync stripper or if you look a page back I made my own cord for the Saturn that plugs directly into the back of the Saturn and then the scaler
Nintendo went cheap with N64 so you have to do the mod listed the link below but really easy http://www.gamesx.com/rgbadd/rgbn64.htm
most snes are fine stock except for snes2(small one) has to be moded like n64 to get rgb
NES does not have RGB just yellow composite so no
all sega products are top notch supplying rgb
from what I have herd the best way to go for Nes is to get one of the multi system retro consoles I will have to research which one