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
