Tecel 8051 T1 & S100 boards?

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I've been looking for a source of low cost 8031 pcb's
for projects.  I found a company www.tecel.com that
have some that look promising - a T1 and a S100 board.

Unfortunately the website doesn't give enough
technical info and an email to them hasn't brought
any response.

Has anyone used these boards?  If so, what I would
like to know is:

1.  How is the ROM and RAM mapped on the
     T1 board?  I intend to use my own software
     need to have the ROM and RAM mapped  to
     the same 64K address space i.e. ROM at
     $0000 and RAM at $8000.)

2.  What sizes of EPROM and RAM can the
     T1 accommodate?

3.  The T1 mentions an RS-232 port - does it
      use a MAX232 on board?

4.  The S100 board is ROM only.  What sizes
     of ROM can it handle?

5.  From the picture of the S100, I can't see any
     support chips?  (I assume the LS373 and
     RS232 chip are buried under the mpu and/or
     rom chip - I hope they're not surface mount!)

thanks in advance,
Ed




Re: Tecel 8051 T1 & S100 boards?

that stuff looks a lot like it's from the stone age, maybe you want to keep
looking. I think that's from someone in their basement after they lost a day
job.

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Re: Tecel 8051 T1 & S100 boards?
Stone age is good enough :)  I already have several 8031
chips in the junk box and don't need anything fancier for
the moment.

Also I don't want to make my own PCB's or wire-wrap,
so I'm looking for a source of cheap, general purpose
8031 pcb's.


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Re: Tecel 8051 T1 & S100 boards?

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few you could look at
http://www.futurlec.com/AT89C52Controller.shtml
http://www.futurlec.com/T89C51DevBoard.shtml
http://www.futurlec.com/P89C51Controller.shtml
http://www.futurlec.com/BasicControllers.html
http://www.futurlec.com/DevelopmentBoards.html

older type
http://members.aol.com/JesstecMicros/products.htm
these are quite nice and small, easy to use and cheap if you just get the
pcbs
and use bits out of your junk box

http://www.hometechfla.com also used a couple of their boards
(again just buy the pcb)

also look on http://www.lvr.com/microc.htm

Alex



Re: Tecel 8051 T1 & S100 boards?
Thanks to everyone for the suggestions and sources.  There
were several links that I hadn't yet encountered which look
promising.

Ed

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Re: Tecel 8051 T1 & S100 boards?

try the MCB900 boards from
www.keil.com  or www.hitex.co.uk

They have the Philips LPC 932 on them


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