Re: CDP 1861 Replacement Circuit Questions
- --- In email@example.com, "David W. Schultz" <david.schultz@...> wrote:
>The funny thing is there isn't any data sheets on how to program these GAL's. I've seen Galblast before and it's only like following a receipe. But when I can, I'll try to put it together.
> On 03/01/2013 04:08 PM, joshbensadon wrote:
> > I want to build a PAL programmer for the 22V10, but even finding
> > information on how to program those common PAL's is difficult.
- Dave Jones did a review of the TL866CS on his EEVBLOG.- Tom
--- In firstname.lastname@example.org, "joshbensadon" <joshbensadon@...> wrote:
> --- In email@example.com, "thinkpast" hjohnson@ wrote:
> > http://www.retrotechnology.com/herbs_stuff/gal.html
> > Some of the simplest PROMS can just be poked at and manually programmed. I reference some of that work on another Web page linked to the above page.
> > Herb
> Thanks Herb,
> Your web site lead me back to do another search on Ebay. I searched a few years ago without success, but now there are several to choose from!
> -TL866CS -$49
> -TOP853 $46 (does not list GAL 22V10)
> -TOP3000 $160
> -G540 -$60
> -G840 -$80
> -RT809F -$88 (does not have large ZIF socket, less versatile?)
> Several of these models include RAM testing and other CMOS Chip Testing, very impressive (if the tests are rigorous?).
> For these prices, it's not worth messing about building a home brew programmer. Heck, I've paid more for an adapter on my Andromeda Labs programmer.
> Right now I'm considering the G840, just on a hunch, but if anyone here can offer any advise, it would be much appreciated.