That's awsome. Great to know even one other part number just for reference, let alone the convenience of making a single order that has the full iit.
I say absolutely add it to the digikey cart and save it as a new shared cart, and maybe leave the original part number and verical link as a reference somewhere on the wiki page. I also like to fill in the customer reference field for each part with the matching silk screen label. For the replacement ram chip for quad I put "Replaces TCM10051". So When a new user orders the kit it's paint-by-numbers. I'll update all that stuff, but just for the record I was always specifically hoping for other people to flesh it out and add to any of those pages. That's why it's a wiki with a functional account registration. I know they are sketchy because I was just trying to get the key info down while working. But the wonderfulness of a wiki is once you get anything at all to start with, it's super easy to improve over time by just adding 5 minutes of work now and then, and fix up like one paragraph or one link etc. I've been tweaking it a little lately with for instance a little clearer pointers to the .jed and flash files, and like just yesterday making it explicit to use build 162 etc. Still could be even clearer. Maybe I'll make a tangent more-info page about the flash chip that lists known compatible parts and a description of what properties matter. Links to data sheets, explaination what to look for in the data sheets. So we have some part actually in the order form, but a page of info about how you would pick a part from scratch when that order form no longer works. Same for the cpld, except I myself know less about those, so I'd be limited to the gross electrical specs. Anyway, thanks for figuring out another part. -- bkw On Oct 21, 2017 5:14 AM, "Jim Anderson" <[email protected]> wrote: > I finally got a chance to build a second REX tonight on my own (kids are > off at their mother's house for the weekend). > > Two wins: first of all, the voltage regulator I thought I messed up last > time is actually OK, and I was able to straighten the pins, solder it down > to a fresh PCB (along with C4) and give it a functionality test. > > Second, I thought I'd try out one of the MX29F800CBTI-70G chips I ordered > from Digi-Key last time, and it works perfectly. I've loaded every ROM > image I can find and a bunch of my RAM images from VirtualT into it and so > far no problems switching between any of them. I'm not sure what else > needs testing to verify it, but I was honestly half expecting it to barf > when I tried installing the REX software load. > > The chip is a Macronix MX29F800CBTI-70G and the Digi-Key part number is > 1092-1022-ND. They're not quite as cheap as buying the AMD chips in lots > of 10 off eBay, but for someone who just wants to build 1-3 REX modules for > their own use I thought it might be convenient to not have to place an > order with another parts supplier or from China to get a couple of flash > chips. > > Brian, I could add a mention of this to the Building a REX wiki page, or > leave it for you to add if you prefer. I don't know if it would be nicer > to make it part of the pre-loaded Digi-Key cart you linked to, or just > mention it separately. > > > > > > > > jim > >
