Replacement Serial Ports

About original Memotech hardware.
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thewiz
Posts: 137
Joined: 12 Aug 2012 16:08

Replacement Serial Ports

Post by thewiz »

How easy would it be to make a serial port for the MTX? Something compatible with the original one?
THIS is what Memotech is doing now.
inaki
Posts: 14
Joined: 17 Dec 2013 14:42

Re: Replacement Serial Ports

Post by inaki »

Pretty easy. You can use the schematics on the service manual, on the part describing the IFACE/RS232 board.
The IFACE board uses a Z80DART controller and three drives. Using a PAL for decoding you can get it all in only four chips. The code for the PAL is also listed on the service manual.
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