Re: TI-H: New EII!!! Subcontracting to build them
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Re: TI-H: New EII!!! Subcontracting to build them
Sure.. I haven't done much regarding laying out the PCB yet
(its awefully hard to find good shareware PCB programs,
anyway) but there will also be an 8 pin module port allowing
all sorts of modules to be connected... so perhaps some kind
of SPinTerface-style thing for that would be nice too. I love
the idea of memory modules... I think they could easily fit
into a DB9 and maybe even something smaller. The whole EII
board, though, will never be that small. I'm trying my damn
hardest to keep it under 2.5 by 1.5 but its gonna be tough.
I'd like to go to SMDs but they're hard to work with for the
average hobbyist and I really don't think they're worth it.
I have found a great place that will do single sided
boards for el-cheapo so I will definitely be getting a pre-fab
run as soon as the design is finalized. I may move some of the
lines around to facilitate PCB routing but I can always change
the firmware. I'll talk to you more in private e-mail if you're
still interested.
Bryan
Richard Piotter wrote:
>
> Does the board have the MMOD port on it? It'd make it very easy to expand the
> memory further.
>
> Also, My new job is VERY time consuming. I might be able to do a few, but I'm
> not sure.
>
> I did say i officialy quit doing upgrades on my web page, but i guess i could
> do some EIIs for the SPinTerface port. 45 minutes aint that bad.
>
> For the MMOD port, all you need is + and -, two wires that interupt power from
> the supply (easy for the SPinTerface version or the link version) and then the
> 4 wires that lead to the chip (excluding the power wires).
>
> If you have a board layout done already, i could make changes to support the
> MMODs. The MMODs can be built into emptied out 9-pin D connector (like a
> serial port) shells. I admit, They could definitely stand to look nicer, but
> they would do. The MMOD would probably be point to point soldering liek the
> old ESF (unless you did a TINY board, which is possible). Does the EII board
> fit in a 3x5 cm space? then, with a hole in the center you can use a GREAT
> radio shack case for them. It's tiny! Probably no room for socketed chips, but
> definitely a good case!
>
> I think I might end up doing SPinTerface versions (maybe link versions too),
> since i can afford an hour or two to make them each day. I'd like to do this,
> but i won't actualy be buiilding the SPinTerfaces, since i simply don't have
> the time for it.
>
> I'd be happy to do EIIs if they are on a pre fabed PCB. I'd like to look at
> the PCB and change it to allow the MMOD port to be used. Like I said, it's
> only 8 wires total. Plain old female header. It's quite simple. At the most,
> you might need two jumper wires. That's it!!!
>
> Are you interested in my offer to modify the board for the MMOD?
>
> Let me know.
>
> Richard Piotter
> richfile@prairie.lakes.com
>
> The Richfiles TI Hardware and BASIC web page:
> http://www.geocities.com/SiliconValley/Lakes/5081/Richfiles.html
--
Bryan Rittmeyer
mailto:bryanr@flash.net
http://www.bridges.edu/horizon/
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