31 Oct
2008
31 Oct
'08
1:12 a.m.
On 30 Oct 2008 at 17:44, Jules Richardson wrote:
I think the end of the last discussion on this
resulted in the conclusion that
it could be done, but required frequencies high enough to rule out just
slapping some TTL together on a bit of prototype board...
ISTR the bitrate from a ST412 drive was about 5 MHz, or one bit every
200 nsec/8 bits per 1.2 usec. That doesn't seem to be all that high
to me--at least not in terms of today's logic. I think I remember
that RLL 2,7 drives had to be able to handle 7.5 MHz data.
Cheers,
Chuck