RE: [Xml1-wire-devel] New hub design, request for input
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RE: [Xml1-wire-devel] New hub design, request for input
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From: Byron K. A. <b.k...@ie...> - 2001-01-18 20:03:47
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> If the tag on the DS2433 contains the 1-Wire Address's > of the DS2409's then it can be anywhere. I would prefer > to have it not down a branch so that you could > know what a branch is before opening it. A valid approach, probably the right one. My only thought is that if you have a network containing several memory devices, not all containing tagging information, you will have to check each of them and determine whether or not they contain a tag, and then process that tag. If, however, it was a rule that braches are always tagged on their aux branch, you would already know where to find what tagging information. On the other hand, if you have prior knowledge of the network, it would make sense to put all of the information for all of the branches in a single tag on the main branch. Byron > -----Original Message----- > From: xml...@li... > [mailto:xml...@li...]On Behalf Of David > Smiczek > Sent: Thursday, January 18, 2001 7:25 AM > To: Byron K. Appelt; 1-wire TAG list > Subject: RE: [Xml1-wire-devel] New hub design, request for input > > > > The problem is that if you have multiple DS2433's, especially > if they are > > associated with multiple DS2409 branches, you can't tell which DS2433 is > > associated with which branch. > > If the tag on the DS2433 contains the 1-Wire Address's > of the DS2409's then it can be anywhere. I would prefer > to have it not down a branch so that you could > know what a branch is before opening it. > > Dave > > > > -----Original Message----- > > From: xml...@li... > > [mailto:xml...@li...]On Behalf Of Byron > > K. Appelt > > Sent: Wednesday, January 17, 2001 6:06 PM > > To: 1-wire TAG list > > Subject: RE: [Xml1-wire-devel] New hub design, request for input > > > > > > The problem is that if you have multiple DS2433's, especially > if they are > > associated with multiple DS2409 branches, you can't tell which DS2433 is > > associated with which branch. Requiring that the DS2409 be > > switched insures > > that you know this. BTW, I am all for having a DS2433 or at least > > space for > > one, on the aux branch. > > > > Byron K. Appelt > > Universal Vinculum Incorporated > > http://www.vinculum.com > > > > > > > -----Original Message----- > > > From: xml...@li... > > > [mailto:xml...@li...]On Behalf Of Jac > > > Kersing > > > Sent: Wednesday, January 17, 2001 5:16 PM > > > To: Bruce Boyes > > > Cc: xml...@li... > > > Subject: Re: [Xml1-wire-devel] New hub design, request for input > > > > > > > > > On Sun, 14 Jan 2001, Bruce Boyes wrote: > > > > > > > Naturally we'd want to include tagging ability, perhaps a > > > DS2433 on the aux > > > > branch of each DS2409. Then the main branch output is the > > > active branch of > > > > OneWire devices. Then you can tell for sure that the tagging > > > 2433 you are > > > > reading is definitely the correct one since it's the only > > > device on the aux > > > > output. > > > > > > What about adding a DS2433 on the main bus? That way there's > no need to > > > address the DS2409 to get to the tagging information. Being > able to read > > > the configuration information for the first layer of the 1-wire net > > > without switching DS2409 to AUX branch seems easier. > > > > > > > Alternatively, if you use both 2409 outputs as switched > > > branches, then you > > > > get twice as many but the tagging is not quite so clean. If the > > > 2433 was on > > > > each output, then it's hard to tell if the 2433 you are > reading is the > > > > tagging 2433 of this 2409 or some other 2433 on the branch. > > > > > > If the tagging contains the 1-wire address of the 2409 that > > shouldn't be a > > > problem. And having both main and aux available would be very > nice. That > > > way one of the 2409 could be used as a door controller. If aux isn't > > > available one would have to use a second 2409 main also for > > this purpose. > > > > > > > The branches would have pluggable screw terminals, maybe also RJ12s > > > > for the maximum of flexibility. > > > > > > Please add RJ12s for easy connection of blue dots, 8x1wire etc. > > > > > > Regards, > > > > > > Jac > > > > > > -- > > > Jac Kersing Technical Consultant The-Box Development > > > j.k...@th... http://www.the-box.com > > > > > > > > > _______________________________________________ > > > Xml1-wire-devel mailing list > > > Xml...@li... > > > http://lists.sourceforge.net/lists/listinfo/xml1-wire-devel > > > > > > > > > _______________________________________________ > > Xml1-wire-devel mailing list > > Xml...@li... > > http://lists.sourceforge.net/lists/listinfo/xml1-wire-devel > > > > > _______________________________________________ > Xml1-wire-devel mailing list > Xml...@li... > http://lists.sourceforge.net/lists/listinfo/xml1-wire-devel > |
