On 7 Feb, Mark Knecht wrote:
> On Sat, 2004-02-07 at 07:57, Stefan Richter wrote:
>> Can [gap_count] be set identical to the maximum number of cable
>> hops? [...]
> I'm at home and don't have a copy of the spec here, but the spec does
> cover (in either the code examples or tables somewhere) how the gap
> timing equation is effected by the value of the gap count.
I have literature here that shows these two equations:
subaction gap: detected by (27...29)+(gap_count*16)/base_rate
arb.reset gap: detected by (51...53)+(gap_count*32)/base_rate
[base_rate = 98.304/s]
But what I don't know from this is what minimal gaps (and hence
what minimum of gap_count) are needed for a given bus topology.
I will dig deeper and learn about how the gap timing relates to
the topology; though I'd certainly welcome any insight you could
provide on occasion.
-- Stefan Richter -=====-=-=-- --=- --=== http://arcgraph.de/sr/ ------------------------------------------------------- The SF.Net email is sponsored by EclipseCon 2004 Premiere Conference on Open Tools Development and Integration See the breadth of Eclipse activity. February 3-5 in Anaheim, CA. http://www.eclipsecon.org/osdn _______________________________________________ mailing list Linux1394-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux1394-userReceived on Sat Feb 7 23:06:18 2004
This archive was generated by hypermail 2.1.8 : Mon 02 May 2005 - 09:16:46 CEST