Rumor has it that Holger Veit may have mentioned these words:
This has been already done, and is available on the
Net. Look at the
schematics for the Apple I replica at
www.applefritter.com;
this contains an ATMEL controller to convert a PC keyboard to the
7bit+strobe required for the Apple I. It is probably just a matter
of changing the translation table in the code to adapt to any encoding. An
ATMEGA8515 is maybe overkill for such a converter,
For that *exact* use, it may be overkill - but I've been wanting to build
an PS/2 -> CoCo adapter for quite some time out of one of my currently
unused 90S8515's I have collecting dust... The CoCo needs 2 8-bit ports for
the keyboard matrix interface; and you could still have an 8-bit port
configured as a straight ascii backup.
I've wandered around that site for quite a while, and I found the
schematics, but no source code for the 90S8515/ATMEGA8515. Do you know if
it's available, or is it closed-source?
Thanks!
Roger "Merch" Merchberger
--
Roger "Merch" Merchberger -- SysAdmin, Iceberg Computers
zmerch at
30below.com
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