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???
03/06/06 13:37
Modified:
  03/06/06 14:29

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#111356 - and it sometimes work
Responding to: ???'s previous message
Use this circuit bellow, it´s has an automatic TX RX switching.
and it sometimes work
The link is very faulty, it show component values that are baud rate dependent and does not specify the baud rate. Also I have been able to crash every RC direction switch I have seen by rapid fire direction switching.

Implementing the direction switch in software and bringing it out on a pin is not difficult (well, everyhing is difficult if you do not know what you are doing) and that approach, implemented correctly, does not fail.

Harshada,
Had I not been busy, the first post you would have seen would have been:

anyone that approach 485 without reading "10 ways to bulletproof 485" first is running blind, the link can be found in links under "best serial appnotes".

Erik

List of 14 messages in thread
TopicAuthorDate
SERIAL COMMUNICATION USING RS485            01/01/70 00:00      
   BI-DIRECTIONAL            01/01/70 00:00      
      recommended reading            01/01/70 00:00      
      485            01/01/70 00:00      
         thanks            01/01/70 00:00      
   The circuit that you need!            01/01/70 00:00      
      and it sometimes work            01/01/70 00:00      
         ...but fits in the Harshada´s needs            01/01/70 00:00      
            but when you publish such            01/01/70 00:00      
               my bad            01/01/70 00:00      
                  MAX3444E - the J1708 variation            01/01/70 00:00      
                     You got mr there.            01/01/70 00:00      
         Beat you to it, Erik            01/01/70 00:00      
            ah, Andy            01/01/70 00:00      

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