[Coco] Coco3 Motherboard Drivewire ROM

[Bruce Borer]

Hi Charlie,
    Instead of burning several EPROMs why not replace the EPROMs with
FLASH and support several versions of the PROM.
This is what I am building right now.  My design does not require any
trace cuts on the main board but does require some
additional signals added from the main board to my plugin PCB.
    My FLASH design can be installed on a Cartridge that has a
socketed 8K EPROM or the CoCo 3's 32K EPROM.
I intend to put it in my Floppy drive controller and experiment with
several mods to the code.  There are simple POKEs to make the second
side of of double sided floppy drives as a another floppy.  I have
developed another version to use 80 tracks instead of the standard 35
tracks.  It is working but not fully tested and it takes a lot of
POKEs.  I want to have the CoCo boot in that mode but be able to
switch back to the standard version.

If any one interested in a copy let me know and I will contact you
when it is fully tested.

Bruce P.B.

On Fri, Feb 2, 2024 at 3:06 PM coco--- via Coco <coco at maltedmedia.com> wrote:
>
>
> A Coco3 Motherboard ROM to Boot OS9 from a Drivewire Server was written
> by
> Boisy Pitre I understand that it was open sourced about 10 years ago.
>
> Does anyone know:
>              1.    Where this ROM image can be found ?
>              2.    If an improved version has ever been written witch say
> could
>                    allow a Cartrige Game to be played ?
>              3.    Who provides a EPROM burning service and how much ?
>
> Charlie
>
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