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???
11/25/05 16:11
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 		 #104159 - RS485 only specifies the media
Responding to: ???'s previous message
RS485 doesn´t specifies the data format, only specifies the electrical media. I agree with you about the electrical considerations, but the data must be embedded in a protocol.
I think RS485 and the multiprocessor mode can be a good combination for this project. In the multiprocessor mode, the uart uses the 9th bit to distinguish the data and the address on the bus. If the master is a PC, the software can control the parity bit to do the addressing.


Roberto Muñoz

List of 55 messages in thread
TopicAuthorDate
Home System            01/01/70 00:00      
   X10 ?            01/01/70 00:00      
   1-Wire?            01/01/70 00:00      
      Multiprocessor communcations            01/01/70 00:00      
   home system            01/01/70 00:00      
   Another Maxim - HomePlug            01/01/70 00:00      
   Simple RS232 multidrop            01/01/70 00:00      
      a dangerous approach            01/01/70 00:00      
         NOT dangerous if you read properly            01/01/70 00:00      
            So it's NOT RS232, then            01/01/70 00:00      
               Ohhh No! ..... Not RS232?            01/01/70 00:00      
                  That you get by with violating the stand            01/01/70 00:00      
                     To RS232 or not to RS232            01/01/70 00:00      
                        well, now you have both            01/01/70 00:00      
                  No Trick            01/01/70 00:00      
                  That's what I said!            01/01/70 00:00      
            dont take it personally            01/01/70 00:00      
               I won't            01/01/70 00:00      
                  on reliability etc.            01/01/70 00:00      
                     true, but...            01/01/70 00:00      
                        time is $$$            01/01/70 00:00      
                           Not bible!            01/01/70 00:00      
                        "bible" - Read, not memorise!            01/01/70 00:00      
                        Jeff, grow some skin!            01/01/70 00:00      
                        Paid help            01/01/70 00:00      
                           I agree            01/01/70 00:00      
                              Oh I am grateful            01/01/70 00:00      
               Indeed            01/01/70 00:00      
                  If this is a "put down" then I must need            01/01/70 00:00      
                     Blah blah blah            01/01/70 00:00      
                        flamewars, episode 3            01/01/70 00:00      
                  Toys !            01/01/70 00:00      
                     slobodan            01/01/70 00:00      
                        Arrogance            01/01/70 00:00      
                           totally misunderstood            01/01/70 00:00      
                              It's here            01/01/70 00:00      
                                 sorry, I do not have ESP            01/01/70 00:00      
                                    How would that help?            01/01/70 00:00      
      Long distances            01/01/70 00:00      
      Questions about your Multi MPU comm.            01/01/70 00:00      
         UART Mode 3            01/01/70 00:00      
            Re: El-cheapo home network            01/01/70 00:00      
               as dangerous and noise prone as the othe            01/01/70 00:00      
                  not "open air"            01/01/70 00:00      
                     well, I missed that, sorry            01/01/70 00:00      
                     ring protection            01/01/70 00:00      
         More info M.I.N.E.S.T.O.N.Y. Comms :-)            01/01/70 00:00      
      You must lead a very quiet life            01/01/70 00:00      
         Don't get personal            01/01/70 00:00      
      may be dangerous            01/01/70 00:00      
         RS485            01/01/70 00:00      
            RS485 addendum            01/01/70 00:00      
               RS485 only specifies the media            01/01/70 00:00      
                  Multiprocessor Mode            01/01/70 00:00      
                     comments/clrafications            01/01/70 00:00      

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