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???
05/05/05 12:59
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 		 #92988 - I2c is forbidden to leave the board...
Responding to: ???'s previous message
Erik Malund said:
on-board, I hope, The IIC is not noise resistant to any extent.

Indeed, Erik, I2c won't leave the board. I've given no authorization to I2c to do that... ;-)
See the comment I gave on Russel's very extensive explanation.

Erik Malund said:
Using IIC in wiring is, at best, risky.

I will have to face one problem,though... As explained in the answer to Russel, I mentioned I have to go with 1 I2c line from the box containing my uC downstairs, to a box upstairs, since I'm working on two levels.
Not all the cables are arriving in the box located in the garage, only part of. Whatever is needed upstairs, will be put in a box upstairs.

2 reasons for that:
- too long cables would be the result, if I have to come from from the first level to the ground level
- more wires would be packed together. Separating them reliefs this a bit.

But for the "long" I2c wire (some 20 meter in total, I guess), I will use the I2c line extender (82B715). So, I don't think that will be a problem, right?

Best rgds,

--Geert

PS. It'll take some more time, but once my complete schematics are ready of the complete electronical circuit, I'll try to post them on the web.




List of 40 messages in thread
TopicAuthorDate
Your opinion about port config pls.            01/01/70 00:00      
   Its irrelevant            01/01/70 00:00      
      Can you clearify pls?            01/01/70 00:00      
         always            01/01/70 00:00      
   More....            01/01/70 00:00      
      Elementary, my dear Watson            01/01/70 00:00      
   Some reference circuits I've looked at            01/01/70 00:00      
      fittness for purpose            01/01/70 00:00      
         I'd second that            01/01/70 00:00      
         The intention is...            01/01/70 00:00      
            on-board, I hope            01/01/70 00:00      
               I2c is forbidden to leave the board...            01/01/70 00:00      
                  I would'nt            01/01/70 00:00      
   The outside world            01/01/70 00:00      
      Sure, you did! ;-)            01/01/70 00:00      
         Multi controller approach.            01/01/70 00:00      
            Some practical restrictions...            01/01/70 00:00      
               concentrate the data            01/01/70 00:00      
               Something like this.            01/01/70 00:00      
                  maybe not needed            01/01/70 00:00      
                     RS485 Stubs.            01/01/70 00:00      
                        two of the same            01/01/70 00:00      
                           Re: Two of the same.            01/01/70 00:00      
                              you are right            01/01/70 00:00      
                  let Geert do it differently            01/01/70 00:00      
                     on data and star            01/01/70 00:00      
                        bus and star            01/01/70 00:00      
                     I prefer 75176 -> RS485 & 75179 -> RS422            01/01/70 00:00      
                        I've got a lot of 75176s in my drawer :)            01/01/70 00:00      
                           What about CAN?            01/01/70 00:00      
                              CAN            01/01/70 00:00      
                                 CAN            01/01/70 00:00      
                                    CAN CAN            01/01/70 00:00      
                                 Challenges, indeed...            01/01/70 00:00      
                                    I would            01/01/70 00:00      
                                    how about Power Line Communications?            01/01/70 00:00      
                                       X10-alike, I suppose?            01/01/70 00:00      
                                          Ya..            01/01/70 00:00      
                                             Always welcome...            01/01/70 00:00      
                                             oops !!!            01/01/70 00:00      

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