Bare with me, still getting up to speed, I thought EME was a product of some-sort that was known.
Anyhow, chip pulled, which turns out to be a M5M5256BP, static RAM. On Fri, Jul 27, 2018 at 10:00 PM Brian White <[email protected]> wrote: > We can't know what it is until you dump it and upload it. Maybe then we > still don't know, or maybe someday we eventually do even if not today, but > absolutely not if it never gets dumped. If it's just the eme adapter with > no label, then it could be literally anything or nothing. > > I don't sell REX's, I just tried to document the process of building, to > remove all the mysteries and question marks and risk as much as possible so > anyone could build their own, and put it where anyone else could improve > the directions even further. > > On Fri, Jul 27, 2018 at 6:41 PM Andy Lawrence <[email protected]> wrote: > >> Hi Brian, maybe, do you have a spare REX? >> >> Either way I can dump the ROM, no problem. It's of no use right, some >> proprietary something or other? >> >> On Fri, Jul 27, 2018 at 5:28 PM Brian White <[email protected]> wrote: >> >>> You should sell it to me :) also dump the rom, or let me dump it. >>> >>> On Fri, Jul 27, 2018 at 2:17 PM Andy Lawrence <[email protected]> >>> wrote: >>> >>>> Ha, thanks, I now understand my mistake. >>>> >>>> Still locks it up, now to think how/if I'll re-purpose the ROM sleeve. >>>> >>>> On Fri, Jul 27, 2018 at 2:05 PM Stephen Adolph <[email protected]> >>>> wrote: >>>> >>>>> Call 61167,2 >>>>> >>>>> ;) >>>>> >>>>> On Friday, July 27, 2018, Andy Lawrence <[email protected]> wrote: >>>>> >>>>>> After the fun with my T102 I decided to continue the fun with a >>>>>> busted T200 off eBay. After a complete re-cap, fixing lots of keyboard >>>>>> traces, huge mounts of cleaning I now have a nice functional T200! This >>>>>> unit came with the RAM fully populated and an EME ROM, which doesn't seem >>>>>> to do anything, calling 63012 locks is up, and 63013 returns OK with >>>>>> nothing else obvious. No NiCad or Y2K mods yet cause I ran out of parts, >>>>>> waiting on Digikey. >>>>>> >>>>>> Well I got bored waiting on Digikey and thought, how fast can this >>>>>> thing go, so I swapped the 4.9151 crystal with a 10Mhz (all I had >>>>>> in-stock), and it boots and runs! So I quickly threw this program >>>>>> together, prime number example I found online modded to time the loop: >>>>>> >>>>>> 1 POWER CONT >>>>>> 10 CLS >>>>>> 20 PRINT "LIMIT"; >>>>>> 30 INPUT L >>>>>> 31 HH$ = LEFT$(TIME$,2) >>>>>> 32 MM$ = MID$(TIME$,4,2) >>>>>> 33 SS$ = RIGHT$(TIME$,2) >>>>>> 37 SEC = VAL(SS$) + (VAL(MM$) * 60) + (VAL(HH$) * 3600) >>>>>> 40 FOR N = 3 TO L >>>>>> 50 FOR D = 2 TO (N-1) >>>>>> 60 IF N/D=INT(N/D) THEN GOTO 100 >>>>>> 70 NEXT D >>>>>> 80 PRINT N; >>>>>> 90 GOTO 110 >>>>>> 100 PRINT "."; >>>>>> 110 NEXT N >>>>>> 111 HH$ = LEFT$(TIME$,2) >>>>>> 112 MM$ = MID$(TIME$,4,2) >>>>>> 113 SS$ = RIGHT$(TIME$,2) >>>>>> 114 SECE = (VAL(SS$) + (VAL(MM$) * 60) + (VAL(HH$) * 3600) - SEC) >>>>>> 117 PRINT "Duration = "; SECE ; " Seconds" >>>>>> 120 END >>>>>> >>>>>> Duration factory = 43sec, duration overclocked = 21sec! (with an >>>>>> input of 100) >>>>>> >>>>>> It isn't completely stable, sometimes I have to power it on 2-3 >>>>>> times, but once on it doesn't seem to have any trouble, aside from the >>>>>> clock resetting on occasion. I've not yet studied the schematic to >>>>>> determine if it's because 10Mhz isn't a multiple of the factory 4.9152, >>>>>> or >>>>>> because it's simply too fast to read properly, but I'll figure it out. >>>>>> I ran the above to 1000 a few times without issue or any lock ups. File >>>>>> transfer even works if I set my PC to 2400bps and the T200 to 1200. >>>>>> >>>>>> Overclocked comes at a 20mA over stock hit. >>>>>> >>>>>> Fun fun, happy Friday. >>>>>> BR, >>>>>> Andy >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>> >>>> -- >>>> projecthuh.com >>>> Never underestimate the carelessness of boredom... >>>> Most people prefer Windows because most people are idiots... >>>> >>>> >>> >>> -- >>> bkw >>> >> >> >> -- >> projecthuh.com >> Never underestimate the carelessness of boredom... >> Most people prefer Windows because most people are idiots... >> >> > > -- > bkw > -- projecthuh.com Never underestimate the carelessness of boredom... Most people prefer Windows because most people are idiots...
