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Am 06.07.25 um 08:12 schrieb Don Y:Like an XMOS chip perhaps?On 7/4/2025 3:30 PM, Oscar Toledo G. wrote:In a previous life I had quite huge a T800 Tranputer cluster and alsoI've developed an ISA board to test some transputer boards (TRAM) I bought in>
eBay, I started with a prototype wired board on an ISA development card, and then I made a proper PCB in three iterations as I solved some bugs.
>
The ISA connector was just because I have several old PC motherboards (80286,
80486, a Pentium MMX, and a AMD K5)
>
The history of development is available at
https://nanochess.org/transputer_board.html
>
The schematics and PCB are available at
https://github.com/nanochess/transputer/pcb
>
In the same git you can get my operating system developed in 1993-1996.
Excellent! What did you learn from the experience (besides the
perils of rushing a PCB)? I.e., what value (or lack thereof) did the
transputer offer?
>
Could you, perhaps, have used a small SBC (arduino, rPi, etc.) and
used GPIOs to twiddle the hardware -- and a USB interface to talk
to it? Or, was the ISA bus an important asset?
did some designs that connected to it.
The ISA bus was not important, but there was a link adaptor
chip (C11? - where is my bottle of Gerontol Forte?) that had a
SRAM-alike "foreign" side that made it easy to handle.
In
< https://www.flickr.com/photos/137684711@N07/52631074700/in/datetaken/ lightbox/ >
the link chip is between the Western Digital SCSI controller and the
VLSI serial/par IO chip.
Complete industrial PC/AT with Multibus2, lots of DRAM, disks, floppy, ... Thanks Goddess I had someone to do the board layout in DOS Orcad STD
on a Compaq 286 :-)
Occam was fun. Maybe nowadays it would make a bigger impact with a
substantial number of CPUs on a chip.
Cheers, Gerhard
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