Neil's Little E&L Collection

I'm always looking for E&L hardware, manuals and misc. items from the 70's and early 80's.
Email me if you have something I might want!

Documents for Download - Note - My uplink is really slow so please be kind when downloading. I can also provide you with a CD of these files for $10.00US, email me for more info.


MMD-1 - Microcomputer Design System

I have two operational MMD-1's in my collection. One of them included the EID-1 add-on listed below. I've been able to make backup copies of the KEX 1702A EPROM and can supply you with a good one if needed (Email me).

Documents for Download - Note - My uplink is really slow so please be kind when downloading. I can also provide you with a CD of these files for $10.00US, email me for more info.

MMD-1 Links


MMD-1 - Unit 1


MMD-1 - Unit 2


MMD-1 with MMD-1/MF Expansion Board - Unit 3


MMD/PP - PROM PROGRAMMER

The MMD/PP is an EPROM programmer for use with the MMD-1. It programs 1702 EPROMs only.  The unit is interfaced to the MMD-1 via the 40-pin ribbon cable. It carries it's own operating program in a 1702 onboard.

 


EID-1

The EID-1 is an add-on for the MMD-1. It plugs into the expansion connector on the MMD-1. It provides a D/A, an A/D, a DC motor, photocell etc. I was able to figure out the port assignments from the silkscreen and have successfully written test code to drive the components on the EID-1.


AID-1

The AID-1 is an add-on for the MMD-1. It plugs into the expansion connector on the MMD-1. It provides a D/A, an A/D, a DC motor, photocell etc.  The AID-1 appears identical to the EID-1 except for the silk screen which identifies this unit as 'AID-1 Analog Interface Designer'.


MMD-2 - Microcomputer Design System

I have an MMD-2 in my collection as well. It was not operational when I bought it. I was able to obtain the HEX files for the EPROMs (2716s) and have successfully programmed a set for it. It took some time but I was able to bring the unit back to life. The reset switch had failed closed which held the system in reset. Once the switch was replaced and the new EPROMs installed the unit powered up. I've written some simple test programs for it.

Documents for Download - Note - My uplink is really slow so please be kind when downloading. I can also provide you with a CD of these files for $10.00US, email me for more info.

MMD-2 ROM Images (HEX files) - MMD2ROM.zip    - 10,278
MMD-2 Notes / Memory Map     - MMD2_Notes.TXT -  3,231

MMD-2 Links

Some pictures of the MMD-2 before I repaired it. Note the empty EPROM sockets in the 2nd picture.


UTC-02 - Universal Counter Timer


Elite 2 - Design Station


OA-1 - Op Amp Designer


DD-1 - Digi Designer (Older Design)

 

Documents for Download - Note - My uplink is really slow so please be kind when downloading. I can also provide you with a CD of these files for $10.00US, email me for more info.

 


DD-1 - Digi Designer (Newer Design)


CD-1 - CMOS/TTL Designer

 


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All content Copyright 2004-2005 Neil B. Breeden II - 05/01/2005 03:14:59 PM