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Multi-Pak Interface: Difference between revisions

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To use these MULTIPAK smoothly with Color Computer 3, use this:
To use these MULTIPAK smoothly with Color Computer 3, use this:
Upgrading 26-3024 MPIs uses a PAL/GAL chip programmed for the CoCo 3's addressing pattern.
Upgrading the 26-3124 involves trace cutting and wiring in a 74LS10 chip to change the addresses.
To make a 20-3024 MPI work with both a CoCo 1/2 and a CoCo 3 requires a piggybacked PAL/GAL with a switch to activate one or the other. I'm sure someone can figure out some circuitry to switch the 20-3124 type MPI.
Neither setup is stable with the other CoCos. IE; once you upgrade to the CoCo 3 address set, your CoCo 1/2 will be unreliable with that MPI.


[http://www.coco3.com/community/2010/05/26-3124-mpi-coco-3-upgrade-1/ 26-3124 MPI CoCo 3 Upgrade #1] [http://www.coco3.com/community/2010/06/26-3124-mpi-coco-3-upgrade-2/ 26-3124 MPI CoCo 3 Upgrade #2]<br />
[http://www.coco3.com/community/2010/05/26-3124-mpi-coco-3-upgrade-1/ 26-3124 MPI CoCo 3 Upgrade #1] [http://www.coco3.com/community/2010/06/26-3124-mpi-coco-3-upgrade-2/ 26-3124 MPI CoCo 3 Upgrade #2]<br />

Revision as of 22:37, 13 March 2014

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This page was last updated on 03/13/2014. Total Pages: 744. Total Files: 994.


Home / Hardware - Multi-Pak Interface


Multi-pak 26-3024 Grey
Multi-pak 26-3024 Grey
Multi-pak 26-3024
Multi-pak 26-3024 White
Multi-pak 26-3124
Multi-pak 26-3124 White

The MULTIPAK is a peripheral that plugs into the slot of expansion of the Color Computer (cartridge port) and expands it to handle up to 4 cartridges interchangeable and can be used one at a time without having to put out one another, this exchange of the 4 slot can be done without shutting down the computer, but sometimes need to use the reset, you can even do some things with several at once

Exist the following models:

  • 26-3024 Grey
  • 26-3024 White
  • 26-3124 White
  • 26-3124A White

There are also custom made MULTIPAK and 8 Slot MULTIPAK


To use these MULTIPAK smoothly with Color Computer 3, use this:

Upgrading 26-3024 MPIs uses a PAL/GAL chip programmed for the CoCo 3's addressing pattern.

Upgrading the 26-3124 involves trace cutting and wiring in a 74LS10 chip to change the addresses.

To make a 20-3024 MPI work with both a CoCo 1/2 and a CoCo 3 requires a piggybacked PAL/GAL with a switch to activate one or the other. I'm sure someone can figure out some circuitry to switch the 20-3124 type MPI.

Neither setup is stable with the other CoCos. IE; once you upgrade to the CoCo 3 address set, your CoCo 1/2 will be unreliable with that MPI.

26-3124 MPI CoCo 3 Upgrade #1 26-3124 MPI CoCo 3 Upgrade #2

26-3024 mpi coco 3 upgrade By Robin W. Drake

Besides the two that provides Cloud-9 hardware Upgrade PAL Multi-Pak, but you have to send the MULTIPAK.


The disk controller must be used in slot 4, and while you can use two disk controllers in the mpi problems exist

Link

Mod

The 74LS10 can be mounted on another (??), and attach the pin 7 & 14, with pin 7 & 14 of the mounted chip

MPI Mod for coco3

(26-3124)


MPI Mod for coco3 diagram