DECmate III and Rainbow 100+

From: Paul Koning <pkoning_at_equallogic.com>
Date: Tue Feb 22 12:01:46 2005

> For the fdprm setting. Try ONE of the two following lines. I usually find
> the second to usually work best on my hardware, but sometimes the
> first works better. comment out the line you do not use (# in front of
> line).
>
> rx50 800 10 1 80 0 0x25 0x01 0xDF 0x2E
> rx50 800 10 1 80 0 0x14 0x01 0xDF 0x18

Interesting. The one I have used is different from both:

rx50 800 10 1 80 0 0x23 0x01 0xDF 0x50

I don't remember any analysis that went into those magic numbers (23
and 50) -- looking elsewhere in the file, it seems that I simply
copied them from the other entries that were "close" to the RX50
format.

Someone who understands floppies better might be able to deduce the
correct timing parameters from the description in the PRO Technical
Manual, but it's above my head.

        paul
Received on Tue Feb 22 2005 - 12:01:46 GMT