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| Transputer chips, anyone? http://anycpu.org/forum/viewtopic.php?f=3&t=854 |
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| Author: | Dr Jefyll [ Wed Jun 23, 2021 2:55 pm ] |
| Post subject: | Transputer chips, anyone? |
I wish I had time to play with these! But maybe someone else will. Great Plains Electronics is a small supplier I learned of only recently. Hidden on their "clearance" page ( here ) are several chips from the Transputer family, including 25MHz CPUs and FPUs. (A few other interesting tidbits, too.) I have no association with GPE but in the interest of anycpu forumites I thought I'd pass this along.  -- Jeff |
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| Author: | BigEd [ Wed Jun 23, 2021 4:05 pm ] |
| Post subject: | Re: Transputer chips, anyone? |
Nice find! IMST805-G25S Transputer, 25MHz, Floating Point, $15 IMST425-G25S Transputer, 25MHz $10.00 IMSC011-P20S Transputer Link Adapter $5.00 IMSC012-P20S Transputer Link Adapter $5.00 IMSC004-G20S Transputer Link Switch $10.00 Just to clarify, both the 805 and 425 are transputers, with CPU, 4k byte onchip RAM and four communication links and a 32 bit wide DRAM-compatible memory interface. The 805 also has an FPU but the 425 doesn't. As the transputer has a handy pre-boot protocol, you need only a 5MHz clock input and a bypass capacitor. To talk to it, you need to speak transputer link protocol, which is pretty simple but not the usual serial. It runs at a fixed 10 Mbit/s rate, so to bit-bang it you need a deterministic machine. http://www.transputer.net/tn/18/tn18.html This is where one or other of the link adapters should be handy - I think the C012 interfaces transputer links to an 8 bit bus, whereas the C011 gives the transputer an 8 bit parallel port. (Or, use an external boot ROM instead of trying to boot over the link.) See also http://www.transputer.net/fbooks/fbooks.asp and http://www.transputer.net/tn/tn.asp I have a whole bunch of transputers, and one day perhaps might try to wake one up. |
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