From: David Wood (jbevren_at_starbase.globalpc.net)
Date: 2007-11-13 02:58:15
Revisiting token ring, there is a problem that can be mitigated. Systems that aren't yet running the network software won't pass the packets to the next link in the ring. This can be mitigated by having a circuit link the in and out together until an output on the userport is set. ;-) That was my only concern against using a token ring, and this (small) epiphany (spelling?) is making me rethink the topology. Using a ring network also solves addressing issues, somewhat. It's possible to easily address an uninitialized network's nodes directly. -jbevren On Mon, 12 Nov 2007 firstname.lastname@example.org wrote: > Hallo Jim, > > > >> telling the system that the network is alive by pulling it High. The > >> first C64 to be started sees a (H) on this line and waits for its > > > > Don't you mean L? > > Yep, indeed. I thought that I changed that. The first idea was starting > with (H) and pulling it to (L) but then I got this idea of using (H) as > active signal so it also could be used as a (small) power source. But > now it seems I forgot to change the first (H). > > > > This suffers if more than one machine power up at the same time > > The idea was to power-on only _one_ machine by hand and this one sees a > (L) and thus asks if it should start the network software. Witht the > right electronics installed, the rest of the C64's will start-up and see > a (H). > > > > I was rather hoping something like the IEC ATN line.... > > No problem, but then, as said, a collision detection is needed. But > whether to use collision detection, master/slave, token ring or another > solution is a matter of SW and IMHO we can discuss that thoroughly after > we have decided on the hardware. > > > -- > ___ > / __|__ > / / |_/ Groetjes, Ruud > \ \__|_\ > \___| URL: Ruud.C64.org > > > De informatie in dit e-mailbericht is vertrouwelijk en uitsluitend bestemd voor de geadresseerde. Wanneer u dit bericht per abuis ontvangt, verzoeken wij u contact op te nemen met de afzender per kerende e-mail. Verder verzoeken wij u in dat geval dit e-mailbericht te vernietigen en de inhoud ervan aan niemand openbaar te maken. Wij aanvaarden geen aansprakelijkheid voor onjuiste, onvolledige dan wel ontijdige overbrenging van de inhoud van een verzonden e-mailbericht, noch voor daarbij overgebrachte virussen. > > Stichting Pensioenfonds ABP is gevestigd te Heerlen en ingeschreven bij de Kamer van Koophandel Zuid Limburg onder nummer: 41074000 > > > The information contained in this e-mail is confidential and may be privileged. It may be read, copied and used only by the intended recipient. If you have received it in error, please contact the sender immediately by return e-mail; please delete in this case the e-mail and do not disclose its contents to any person. We don't accept liability for any errors, omissions, delays of receipt or viruses in the contents of this message which arise as a result of e-mail transmission. > > Stichting Pensioenfonds ABP, having its registered office at Heerlen, is registered in the Traderegister of the Chamber of Commerce Zuid Limburg (Maastricht), the Netherlands, registration number: 41074000 > > > > > > Message was sent through the cbm-hackers mailing list > Message was sent through the cbm-hackers mailing list
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