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A project log for Gigatron TTL microcomputer

Just because! A home computer without microprocessor

marcel-van-kervinckMarcel van Kervinck 09/30/2017 at 21:502 Comments

 Indeed, the plans to consolidate the breadboard into something more robust begin to materialise.

(And yes, U29's pin 10 isn't soldered due to a little bug.)

Discussions

Marcel van Kervinck wrote 10/01/2017 at 08:55 point

Thanks Dylan! I'm now waiting for some parts to arrive (jacks, resistor arrays) so I can continue debugging. It is my first PCB ever.. The board should be compatible with the breadboard computer, except that I now work with the larger capacity 27C1024 EPROM. They seem perfect for the design. Instead of the two 32K 8-bit EEPROMs of before, I can use a single 27C1024 and fill the entire program space AND get 16-bits words. As if this chip was made for this design.

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Dylan Brophy wrote 10/01/2017 at 00:58 point

The board looks great Marcel!

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