ty140 at hotmail.com
Thu Nov 29 13:47:28 EST 2007
Absolutely amazing! I could only look at these through an emulator, as I'm without a 5 1/4" drive for my PC and have no disk system for my CoCo.
Thanks for the welcome! It seems I have a lot of material to review so I don't step on any toes or re-invent the wheel several times. :)
I can't seem to find a "good" schematic of the NTSC CoCo3, so I re-did the one scanned for the service manual (which is absolutely horrible on my eyes). It's been remade in PSpice, so the component sizes aren't the same as on the original CoCo3 schematic -- you'll see what I mean, but everything is generally in the same place.
This is a pre-release of sorts, as I haven't marked polarity on the electrolytics yet.
Signals are color-coded as follows:
Red -- RESET*, SND_IN(2), CAS*, RST*, CVIDEO, SOUND, HSYNC, VSYNC
Green -- ECLK, QCLK, WE1*, WE0*, R/W*, P1, 8V, HI
Blue -- CART*, ROM*, CTS*, SCS*, SLENB*, FIRQ*, IRQ*, SERNT
The CoCo3 on an FPGA looks like a step in the right direction for improving the CoCo3 hardware without a lot of expense in design. I found the designer's homepage, but I couldn't find if it offers (or plans to offer) the expansion ports.
> Date: Thu, 29 Nov 2007 11:42:27 -0600> To: coco at maltedmedia.com> From: operator at coco3.com> Subject: Re: [Coco] Hello!> > At 10:38 AM 11/29/2007, you wrote:> >Welcome to the group, Ty.> >> >Some things to check out if you haven't been using the CoCo in a while:> >Sockmaster (AKA John Kowalski) has done some amazing things with the> >CoCo. What I find particularly impressive is his Hi-Color display> >program, which produces, IMHO, the best quality image display I've ever> >seen on a CoCo 3, though it's more of a demo, and less of a finished> >product, and the image processing takes an eternity (but processed> >images can be saved for much quicker load times).> >http://www.axess.com/twilight/sock/hicolor/hicolor.html For a very> >polished, general-purpose image viewer that includes good quality> >high-color modes, check out Roger Taylor's Projector 3. (Can't find a> >link at the moment.> > > Projector-3 has been added to the Downloads section at:> http://www.coco3.com/modules.php?name=Downloads&d_op=viewdownload&cid=7> > > > > --> Coco mailing list> Coco at maltedmedia.com> http://five.pairlist.net/mailman/listinfo/coco
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