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Groups > comp.arch.embedded > #27798
| From | Tauno Voipio <tauno.voipio@notused.fi.invalid> |
|---|---|
| Newsgroups | comp.arch.embedded |
| Subject | Re: Multi Master RS485 is it possible ? (SPAM) |
| Date | 2018-06-12 16:22 +0300 |
| Organization | A noiseless patient Spider |
| Message-ID | <pfohee$41b$1@dont-email.me> (permalink) |
| References | <346041a4.0@katana.legend.co.uk> <fb917f8a-28ee-491f-976d-727a22bed267@googlegroups.com> <pfocb5$1mo$1@dont-email.me> |
On 12.6.18 14:55, David Brown wrote: > On 12/06/18 13:08, duke@dukelec.com wrote: >> On Wednesday, 5 November 1997 16:00:00 UTC+8, Dr John Tankard >> wrote: >>> I have seen many examples of a single master multiple slaves RS485, >>> my question is :- is there any reason why there cannot be multiple >>> masters on the wire ? >>> >>> Thanks in advance >>> >>> John Tankard >>> >>> jtankard@tankard.com >> >> The CDBUS protocol for RS485 avoid collisions just like the the CAN >> bus: https://github.com/dukelec/cdbus_ip >> > > Is this a new record for necroposting in this newsgroup? > > While it is good of you to try to help the OP, I doubt if he has been > sitting for over 20 years waiting for an answer! It is just plain old spam for something the poster thinks to have invented years ago. There have been such protocols in the RS-485 bus for years before his invention. -- -TV
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Re: Multi Master RS485 is it possible ? duke@dukelec.com - 2018-06-12 04:08 -0700
Re: Multi Master RS485 is it possible ? David Brown <david.brown@hesbynett.no> - 2018-06-12 13:55 +0200
Re: Multi Master RS485 is it possible ? (SPAM) Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2018-06-12 16:22 +0300
Re: Multi Master RS485 is it possible ? (SPAM) duke@dukelec.com - 2018-06-12 07:28 -0700
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