thanks Ken. I'm about to find out how little my hours are worth.
On Mon, May 16, 2016 at 9:00 PM, Stephen Adolph <twospru...@gmail.com> wrote: > sure, send it over. > > On Mon, May 16, 2016 at 8:56 PM, Ken Pettit <petti...@gmail.com> wrote: >> Hey Steve, >> >> Actually I just checked my Skype contact list and my China manufacturer >> contact is online right now. :) I could share that contact with you no >> problem. For facts, they would need to see gerbers, BOM and assemby >> diagrams of course. >> >> Ken >> >> >> On 5/16/16 6:54 PM, Stephen Adolph wrote: >>> >>> no, i have not, mostly because I feel like they can't do the M100 >>> machining. I hand grind the PCBs for M100 to expose the large vias so >>> they can engage the molex. So, that's an issue. Next is just the $$ >>> per hour of the offshore assembling. If you have a contact Ken, I >>> could actually get *facts*. >>> PC-8201 is pretty easy, but the pins needed are kinda special from >>> what I can tell. I only have 50 of those carriers in my parts pile, >>> and I never see them on ebay. >>> steve >>> >>> >>> On Mon, May 16, 2016 at 8:50 PM, Ken Pettit <petti...@gmail.com> wrote: >>>> >>>> Hey Steve, >>>> >>>> Did you ever look into having an assembly house build these? >>>> >>>> Ken >>>> >>>> >>>> On 5/16/16 6:48 PM, Stephen Adolph wrote: >>>>> >>>>> ..re REX. IF I could release it to oshpark I would. In fact the >>>>> boards are there. The problem is... I doubt people will be successful >>>>> soldering fine pitch. Do you want to try? The chips can be purchased >>>>> on ebay or digikey. >>>>> If you want to try I will release the board design(s). >>>>> >>>>> Steve >>>>> >>>>> >>>>> On Mon, May 16, 2016 at 8:33 PM, Brian White <bw.al...@gmail.com> wrote: >>>>>> >>>>>> The figtronix link broke because I asked him a question about his main >>>>>> rom >>>>>> adapter a couple weeks ago, and he updated the board, just the >>>>>> silkscreen >>>>>> not anything functional, and he removed the old link and made a new >>>>>> one. >>>>>> I >>>>>> don't know if that's just the way oshpark works or if he's just doing >>>>>> something wrong. >>>>>> >>>>>> He ended up doing a bunch of stuff that I wanted for free and without >>>>>> asking, so I wasn't going to complain about a little thing like it's >>>>>> annoying having to keep finding out the new link! >>>>>> >>>>>> We ended up trading a lot of emails and he whipped up both the option >>>>>> rom >>>>>> board and the programmer adapter after I showed him the club100 links >>>>>> to >>>>>> the >>>>>> old EME option rom module. There were several rapid iterations of both >>>>>> of >>>>>> those and he did the same thing each time with those too, broke the >>>>>> existing >>>>>> link and made a new one. And it takes forever before they show up in >>>>>> the >>>>>> oshpark search too. >>>>>> >>>>>> (Oh yeah, don't trust that search. Find any working link to any board >>>>>> by >>>>>> that guy, then click on the guy's name, and THERE you see all his other >>>>>> boards, including all 3 M100-related, even though they don't show up in >>>>>> the >>>>>> search.) >>>>>> >>>>>> Anyway there's lot's of ways to skin the same cat of course. >>>>>> >>>>>> I like your board too. I actually assembled one of your boards too, but >>>>>> I'm >>>>>> using the figtronix at the moment, because I don't want a combined >>>>>> system >>>>>> and option rom, I want to be able to use the external accessible option >>>>>> rom >>>>>> socket to swap roms and install commercial roms, and I want the system >>>>>> rom >>>>>> to be socketed and re-programmable or at least swappable. I actually >>>>>> found >>>>>> ceramic uv-erasable clcc 27C256, but even replacing OTP plcc ones is >>>>>> better >>>>>> than needing a test-clip. >>>>>> >>>>>> One thing I should verify, maybe there IS actually room to solder your >>>>>> board >>>>>> on the motherboard and put a dip socket on the adapter, then trim the >>>>>> legs >>>>>> of the eprom a little so the eprom sits lower in the socket, does the >>>>>> resulting stack come out 0.55" or shorter? That would meet all my same >>>>>> wishes above. Takes a standard eprom, and the eprom is removable and >>>>>> reprogrammable with no special adapters. >>>>>> >>>>>> Ideally I'd like both the main and option roms to use the same kind of >>>>>> eprom. not plcc in one and soic in the other. There is just barely >>>>>> vertical >>>>>> room for a low profile plcc socket in the option rom, but low profile >>>>>> plcc >>>>>> sockets are surface mount so soldering them at home is not simple like >>>>>> the >>>>>> regular socket with thru pins. I have old commercial option roms that >>>>>> used a >>>>>> full dip28 eprom on a board. it's a tight fit but it works. The holes >>>>>> for >>>>>> the eprom are actually pulled in a little closer than the proper dip28 >>>>>> spacing, squished inside the half-holes on the edges which are at dip28 >>>>>> spacing. No room for a socket, so a board like that you could only >>>>>> re-program with either a test clip or a programming adapter, but that's >>>>>> no >>>>>> worse than what you already need for the soic board. But at least then >>>>>> that, >>>>>> along with your main rom board, means you'd have the same kind of part >>>>>> on >>>>>> both system and option roms. >>>>>> >>>>>> I mean IDEALLY of course, I'd love a REX, but I emailed the address on >>>>>> club100 a couple times and never got any answer, and the plans for REX >>>>>> aren't published like on oshpark, so oh well. Even if by a miracle one >>>>>> REX >>>>>> became available from somewhere, I still probably wouldn't want to >>>>>> invest >>>>>> time hacking with it if no one else could ever make use of the results. >>>>>> If >>>>>> the REX were reproducible at will and anyone could have one, THEN it >>>>>> would >>>>>> be a worthwhile target for hacking/developing. If not, then I'd rather >>>>>> just >>>>>> start a new public/open design even if it's cruder and reinventing the >>>>>> wheel. >>>>>> >>>>>> (And now that I say that, I realize I sure like my MISE, and that's >>>>>> basically in the same boat. The design is not public. The guy just >>>>>> happens >>>>>> to be actively producing and supporting it right now. So maybe I'm >>>>>> being >>>>>> inconsistent. At least I made my enclosure for the MISE public, >>>>>> including >>>>>> a >>>>>> slick non-trivial arrangement to hold the cf card reader which does not >>>>>> have >>>>>> any nice mounting holes or anything, if I do say so myself. ;) ) >>>>>> >>>>>> In the 102 of course I just stuck a plain socket in and a plain dip >>>>>> 27c256. >>>>>> No complications there. Same goes for late m100 too apparently though >>>>>> both >>>>>> my m100's needed the adapter. >>>>>> >>>>>> -- >>>>>> bkw >>>>>> >>>>>> On Mon, May 16, 2016 at 3:54 PM, Mike Stein <mhs.st...@gmail.com> >>>>>> wrote: >>>>>>> >>>>>>> Thanks for posting those links. When I mentioned the various options >>>>>>> for >>>>>>> adding/upgrading System and Option ROMs I wanted to include this one >>>>>>> but >>>>>>> at >>>>>>> the time the link at Oshpark didn't seem to work; I couldn't find any >>>>>>> mention on his Figtronix site either so I assumed they were no longer >>>>>>> available for some reason. Glad to see they're back and he's added a >>>>>>> programming adapter. >>>>>>> >>>>>>> One advantage of those boards over the board Bill and Steve are >>>>>>> discussing >>>>>>> is that in a T102 you can add an Option ROM without removing the >>>>>>> System >>>>>>> ROM >>>>>>> chip; however, at the risk of being immodest I should point out what I >>>>>>> think >>>>>>> are some advantages of the 'Combo' board: >>>>>>> >>>>>>> Whether you want to upgrade the System ROM and/or add an Option ROM in >>>>>>> either an old or a new M100/T102 you use the same board; no need for >>>>>>> separate System and Option ROM adapters. >>>>>>> >>>>>>> To (re)program the IC in an 'old' M100 you'll need another adapter to >>>>>>> convert the pinout back to standard JEDEC; no problem, just assemble >>>>>>> another >>>>>>> adapter 'in reverse' as it were, with a socket. >>>>>>> >>>>>>> So the one PCB essentially does the same job as all three different >>>>>>> Figtronix ones; since you get a minimum of six boards you might save >>>>>>> some >>>>>>> money. >>>>>>> >>>>>>> Finally, since it uses a standard 28-pin socket if you want to play >>>>>>> around >>>>>>> with the System ROM code without burning/replacing/reprogramming the >>>>>>> E(E)PROM every time, replace it with a non-volatile RAM chip like the >>>>>>> Dallas >>>>>>> DS1230Y or the FM1808 FRAM and a minor mod to connect R/W and you can >>>>>>> POKE >>>>>>> around all you want.. >>>>>>> >>>>>>> m >>>>>>> >>>>>>> ----- Original Message ----- >>>>>>> From: Brian White >>>>>>> To: Model 100 Discussion >>>>>>> Sent: Saturday, May 14, 2016 11:42 PM >>>>>>> Subject: Re: [M100] ROM burning questions >>>>>>> >>>>>>> ...Re-post without pic... >>>>>>> >>>>>>> Old m100 takes a non-standard pinout, new m100 and all t102 takes a >>>>>>> standard 27C256 pinout. >>>>>>> >>>>>>> I just did an old m100 using this plcc adapter: >>>>>>> >>>>>>> https://oshpark.com/shared_projects/toQDqmVV >>>>>>> >>>>>>> I burned the Tandy 102 rom with y2k patches from the rex page on >>>>>>> bitchin100. >>>>>>> >>>>>>> The board is easy to assemble except the only hitch is you have to >>>>>>> find >>>>>>> pin headers that have thinner round pins rather than the more common >>>>>>> square. >>>>>>> >>>>>>> If you have a "new" m100, the chip number on the rom will not match >>>>>>> the >>>>>>> number silkscreened on this board. In that case you don't need any >>>>>>> adapter, >>>>>>> just put in a 27C256 dip28 directly, same as for T102. >>>>>>> >>>>>>> https://goo.gl/photos/GUKXgxxVGaUVt57k9 >>>>>>> >>>>>>> -- >>>>>>> bkw >>>>>> >>>>>> >>
