[Coco] World's most expensive Coco RGB -> VGA adapter?

[John Kent]

There is a Video decoder board from Digilent here:

http://www.digilentinc.com/Products/Detail.cfm?Prod=VDEC1

VDEC-1 US$69

It needs an I2C interface to program it.
It interfaces via a Hirose FX2 100 pin connector.

http://www.digilentinc.com/Products/Detail.cfm?NavPath=2,400,789&Prod=NEXYS2
Nexsys2 US$149

or
http://www.digilentinc.com/Products/Detail.cfm?NavPath=2,400,792&Prod=S3EBOARD
Spartan3E starter board $189
(which is what I have)

That will give you and idea of the hardware cost.

Then it's a matter of having a 6809 or some processor to program up the 
VDEC-1 with via an I2C interface, and a matter of writing a DDR RAM 
controller for the Spartan 3E starter. The Nexsys2 uses SDRAM I think 
and I'm not sure if Digilent have an SDRAM controller core for the Nexsys2.

Alternately it would be a matter of buying a XST-3S1000 board set form 
XESS for US$399 which I'm pretty sure has a NTSC/PAL/SECAM video decoder 
chip on the carrier board. XESS also provide the SDRAM controller IP as 
support.

I'm not sure if Mark has a cheaper hardware solution. Building your own 
FPGA board I think would be a more expensive way to go.

John.

On 20/07/2011 8:19 PM, Nick Marentes wrote:
> >>/Mark, is it possible to add scanlines to the video? /
>
> >Actually, it would be possible, given a high enough output resolution.
>
>
> Cool! Scanlines!!
>
> THIS is the CoCo RGB to VGA/LCD converter I've been waiting for.
>
> I'd be keen to get one, if not too expensive. I actually bought a 
> second CM-8 monitor 10 years ago for when my main one died. Amazingly, 
> the original is still working strong just like the day I bought it 
> back in 1986!!   :)
>
>
>
> -- 
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> Coco at maltedmedia.com
> http://five.pairlist.net/mailman/listinfo/coco
>
>

-- 
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