[Coco] Rs232 Pack
David Ladd
davidwladd at gmail.com
Thu Feb 27 10:34:14 EST 2025
On Thu, Feb 27, 2025 at 7:25 AM Juan Castro via Coco <coco at maltedmedia.com>
wrote:
> Hmmmm, nice! What's in that ROM? Did the RS-232 Pak originally come with a
> 8K ROM?
>
Deluxe RS-232 Pak came with a 4K ROM and by default only supports a 4K ROM,
so if you replace the ROM with a socket or socket adapter there are a
couple patches you have to do to support 8K & 16K ROM's.
I used Jim Brain's 2364 to 2764/27128/27256/27512 EPROM adapter and
soldered it in place of the 24PIN ROM. Then ran the bodge wires to the
adapter to get the extra address lines needed as well as cutting one trace
that was pulling one of the address lines on the ROM high.
>
> <cut>
>
>
Sincerely,
David Ladd
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