ncoplin_at_orbeng.com
Date: 2003-09-24 09:35:53
Hi All,
The two issues have been relavant issues of 64er have been uploaded to my
website. Thanks to Jochen Adler for the scans.
http://www.64hdd.com/other/ <http://www.64hdd.com/other/>
Will leave them up there for about 1week for anyone interested to download
them. Given today's CPLDs the concept should easily translate into a single
chip project ;)
One thing I didn't uderstand from the schematic (not being able to read
german) is how are the LEDs refreshed... is the memory location accessed
often enough that the display is updated and steadily lit?
- Nick
-----Original Message-----
From: COPLIN, Nicholas.
Sent: Friday, 19 September 2003 9:10 AM
To: cbm-hackers@cling.gu.se
Subject: RE: Track/Sector Indicator on Drives
Hi All,
the advice from a friend of a friend is that the article appeared in 64er
issue 10/91. The hardware device apparantly attached to the RAM IC and
detected/converted particular writes to the chip into the display codes. It
apparantly works with both standard and JiffyDOS. As to whether it works
with custom routines depends I guess on whether these update the particular
RAM locations which store T and S.
- Nick
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