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The Memotech MTX Series

Memotech Multi-Function Expansion System

MFX



 
MFX Boot Screen - VGA



 
MFX Boot Screen - VDP

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Background

This page was first created as a placeholder when Martin and I were planning to develop a CFX-III. This was going to be a development of CFX-II, intended to improve the quality of the graphics output. Whilst CFX-II worked well, the VGA output was not all that I had hoped, with some "noise" being displayed on some, but not all, VGA monitors and I didn't feel comfortable making more than the original batch of 10.

For various reasons, Martin and I rethought the aims of the project and decided that, whilst a Compact Flash based solution was still a possibility, the waning popularity of CF, the increasing prices of CF cards and the lack of a built-in CF interface on most PCs meant that SD card was really a better option.

We have now developed a different expansion board for the MTX which includes additional functions and have released it as the Memotech Multi Function eXpansion card - MFX.

 

Design Goals

  • CP/M Disk system based on SD card

  • RAM Expansion up to 512kB (starting from 32k/MTX500 and 64k/MTX512)

  • VGA Output for CP/M (80 columns) and VDP (40 columns & graphics)

  • Network Connectivity based on the work done for NFX

  • Utilizing a low cost FPGA development board

  • Designed for internal mounting only

 

 

M F X   A V A I L A B I L I T Y

Released Late 3Q 2022

Now shipping - in small numbers !

 

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