Yahoo Groups archive

AVR-Chat

Index last updated: 2026-04-28 22:41 UTC

Message

RE: [AVR-Chat] Multimaster network

2005-03-09 by Chuck Hackett

> From: Jim Wagner
> 
> For this application, you really DO NOT need a very random
> value. The whole idea is that the transmitters that
> "collided" wait different time intervals before retrying.
> You just want one to be different than the other. Don't
> bother with all that stuff to get genuinely random values.

You are correct in that we don't really need "random" values in this application
(collision resolution).  The conversation really started by needing to generate
two "different" values in the case where two processors are connected in the
same local environment such that they are running identical software, receive
the same bus data, and are reset by the same HW reset signal.

Cheers,

Chuck Hackett
"Good judgment comes from experience, experience comes from bad judgment"
7.5" gauge Union Pacific Northern (4-8-4) 844
http://www.whitetrout.net/Chuck

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.