Possible off-the-shelf C128 RGB to DVI converter?
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From: a7yvm109gf5d1 on 11 Oct 2006 16:15 JohnH. wrote: > > You seem to have a fairly urgent need of such a device. > > It is a matter of convenience. I'd like to get all of my computer > systems operating off of one monitor. Currently I have all of these > operating off of my Dell 2407FPW monitor. > > * My main PC running XP (via VGA) > * A PC running 64HDD (via VGA) > * A C128D (40 column via composite) > * An Atari 130XE (via S-Video) Nice setup. I have a IIgs scumming around somewhere that would also benefit from being hooked up to a VGA monitor. > The only think I cannot get to work on the monitor is 80 Column output > from the C128 RGBI port. From previous threads it seems like my best > option may be to try and find or create a RGBI to RGB Component RGBI to RGB is not hard. But I think that monitor wants YUV component video. RGBI to YUV shouldn't be hard but I've never examined that option. The monitor would be doing all the work of upscanning, etc. I'm sure you will not see scan lines on the monitor with 15KHz YUV. > interface. The Dell 2407FPW support RGB Component input. Oooooh, is that LCD nice? Looks tempting. What video card is driving that? > I'm not really a hardware guy. I can do simple things. But, I think > I'm better off trying to go off-the-self if possible. Off-the-shelf is the way to go. Never try to design something that already exists. I originally started because none of the boxes out there handled RGBI or CGA properly. I think this is the first time I see a viable commercial product but I was not prepared for the price. Did you confirm that price BTW? The weather forecast call for a rainy weekend. So no biking or hiking.
From: MagerValp on 11 Oct 2006 17:25 >>>>> "a" == a7yvm109gf5d1 <a7yvm109gf5d1(a)netzero.com> writes: a> BTW CGA and RGBI should be the same thing, but the IBM CGA monitor a> did some tricks to the brown/dark yellow color that I'm still not a> sure the C= monitors did. I can confirm that the 1901 shows dark yellow as brown. -- ___ . . . . . + . . o _|___|_ + . + . + . Per Olofsson, arkadspelare o-o . . . o + MagerValp(a)cling.gu.se - + + . http://www.cling.gu.se/~cl3polof/
From: Dragos on 11 Oct 2006 17:47 First you say to wait for your project, then you say your not going to be selling them. well, that i believe, you cant sell something that you'll never finish. you do seem to have wildstar conviced, but thats not too hard. More vaporcrap, more hype, more BS. a7yvm109gf5d1(a)netzero.com wrote: > JohnH. wrote: > > > 2200$ US. You sure you can't wait a bit for my project? > > > > Holly cow!!! The solution is worth about $100US, maybe $120US to me. > > I have not heard back from the U.S. distributer yet. I can't believe > > anybody would pay $2,200US to convert a video signal. You could > > obviously buy a new monitor for far cheaper. > > > > Is the goal og you RGBI-to-VGA project to produce a comercially > > sellable product, or to produce a design that others can work from to > > build it themsleves? > > > > John > > I just called the number from the website you got the datasheets from. > Maybe I misunderstood the amount, but the sales guy proposed a lower > cost device for 500$. He said he would email info to me. > > My project is just for myself. I never intended to sell any since the > interest was so low. At best, I was going to release the schematics and > the Olimex work order number to get your own PCB and then you can build > it yourself. This depends on your skill level and what tools you have, > of course. Most parts can be had at Digikey and the other parts I can > order through work since they need the old-school distributor/purchase > order thing. Programmed PICs I can supply. > > If my tests on the genlock chip suceed, I can write some more code to > configure the main IC and maybe start seeing some VGA signals soon. > This is just a hobby for me though, so if I get drunk this weekend, > nothing will get done, again... > > You seem to have a fairly urgent need of such a device. (BTW CGA and > RGBI should be the same thing, but the IBM CGA monitor did some tricks > to the brown/dark yellow color that I'm still not sure the C= monitors > did. At worst, you'll have one color from the 128 not look exactly > right.) > > I think the high cost of their device reflects the amount of work > required to get such a thing working and the small market for one. You > can get NTSC to VGA boxes for less than a 100$ cdn.
From: Joseph Fenn on 11 Oct 2006 18:02 On Wed, 11 Oct 2006, Leif Bloomquist wrote: > > "JohnH." <john(a)jrcc.net> wrote in message > news:1160595586.315916.225320(a)m73g2000cwd.googlegroups.com... > >> The only think I cannot get to work on the monitor is 80 Column output >> from the C128 RGBI port. > > You can get mediocre monochrome composite output from the RGBI Port on Pin > 7. You'd be missing out on the excellent color, but at least you'd be able > to display the information. > > > Hogwash joe
From: Joseph Fenn on 11 Oct 2006 18:04
On Wed, 11 Oct 2006, MagerValp wrote: >>>>>> "a" == a7yvm109gf5d1 <a7yvm109gf5d1(a)netzero.com> writes: > > a> BTW CGA and RGBI should be the same thing, but the IBM CGA monitor > a> did some tricks to the brown/dark yellow color that I'm still not > a> sure the C= monitors did. > > I can confirm that the 1901 shows dark yellow as brown. > > -- > ___ . . . . . + . . o > _|___|_ + . + . + . Per Olofsson, arkadspelare > o-o . . . o + MagerValp(a)cling.gu.se > - + + . http://www.cling.gu.se/~cl3polof/ > Well again I say find something that will do the job for C128 in 80 col mode and buy it (I'll have another Heinekens in the meantime Joe |