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Author Topic: Internal memory expansion (Read 44625 times)

Offline Z80System

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Re: Internal memory expansion
« Reply #225 on: 2017.November.04. 11:07:08 »
Quote
The same functions with the same wiring, only in SMD

I count only 8 pin on the red and 10 pin on the green,

and the red one does not seem to have a connector on the right side either ...


That does not seem the same ... where am I wrong ?

Z80 System

Offline Tutus

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Re: Internal memory expansion
« Reply #226 on: 2017.November.04. 11:37:40 »
I count only 8 pin on the red and 10 pin on the green,

and the red one does not seem to have a connector on the right side either ...


That does not seem the same ... where am I wrong ?

Here is the explanation :)
Only red is available.
http://szergitata.blog.hu/2017/08/18/enterprise_1088kb_ujra_enterprise_1088kb_anew

Offline Z80System

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Re: Internal memory expansion
« Reply #227 on: 2017.November.04. 13:29:41 »
Quote
Here is the explanation :)

Ok, I did not remember, that the pins of the former cable are separated,
so those can be connected (physically) in any order to a board (former or new one) ...
« Last Edit: 2017.November.04. 13:32:49 by Z80System »
Z80 System

Offline Zozosoft

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Re: Internal memory expansion
« Reply #228 on: 2017.November.21. 10:01:57 »
The same functions with the same wiring, only in SMD
Wiring not same :-(

Now 3 different wiring exist... little crazy :evil:

In this summary colors used from Saint, it is same with the dupont cable colors.

Online gflorez

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Re: Internal memory expansion
« Reply #229 on: 2017.November.21. 10:42:58 »
It is annoying.... I was meaning the same signals there.

Offline Zozosoft

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Re: Internal memory expansion
« Reply #230 on: 2017.November.21. 10:56:05 »
It is annoying....
Yes. But existing "Saint cables" can be modified to universal with cutted dupont headers.
Then just need to care for the proper cable order for the currently installed board. This is why I made this colored table, for a help :-)

Offline Zozosoft

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Re: Internal memory expansion
« Reply #231 on: 2017.November.21. 23:14:47 »
Ooops :oops:
I looked the memory map with the new (red) board, and it is look very crazy :oops:
Then found the suggested wiring on Szörg's page are wrong, two wires need to be replaced.
There is the updated table:


Universal cable which can be used with both Saint and Kotek type boards:
19985-119987-2

With Saint board:
19989-3

With Kotek board:
19991-4

Memorymap of the new red board (Kotek):
19993-5