Sorry, some of the lines in this message are Dutch!
>>2/ Can I use a PC memories (EDO) on MSX (or with an interface...)
>
>
>According to an article from Hans Oranje in MSX-Info blad it is possible to
>use PC memory ( 30 pins 1Mb) in your MSX2. However I tried to build it and
>it didn't work (grrrrr). I haven't yet discovered why. But because I used 5
>metres of cable to connect all the IC's on the mainboard to the 1 Mb SIMM,
>it is difficult to locate the error.
>I can't undo the changes because the original memory got broken when I
tried
>to get it out and I can buy new memory because it is taken out of the
>market.
>
>If you still want to try it, I can send you the article, but it's in Dutch.
For the people who tried to build SIMM memory in their MSX 2 computers,
there are some slight modifications in the design. On page 15 of MSX-Info
Blad 8 at the bottom of the left column the line:
"Breng een draad aan tussen pen 1 en pen 2 van de geplaatste 74LS00 en pen
12 van IC 180 (74LS32) (RFSH)" should be:
"Breng een draad aan tussen pen 1 en 2 van de geplaatste 74LS00 en pen 11
van IC 180 (74LS32) (RFSH+MEMRQ)"
Furthermore on page 17 SIMM pin 28 and 29 should not be connected instead of
being connected to pin 9 of the 133 (41464) IC!!
Then it should work correctly!
For more detailed questions contact:
Hans Oranje
Tollenslaan 153
2741 XZ Waddinxveen (Holland)
Tel:(0182) 61 89 32
E-mail: [EMAIL PROTECTED]
A copy of MSX-Info Blad 8 can be obtained by contacting:
Rinus Stoker
Rotterdamstraat 73
6415 AV Heerlen (Holland)
Tel: (045) 572 95 09
Articles in MSX-Info Blad are copyrighted and may not be freely distributed
without permission of the authors!
Greetings,
G.H. van den Berg
MSX-Info Blad
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