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???
08/12/04 12:51
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#75827 - Lack of searching first!
Responding to: ???'s previous message
Does this mean that only a port 0 pin can be used to drive a 1-wire?

Of course, not!

Robert,

when you begin to design such a circuit, why don't you read all available application notes given by manufacturer, first??
If you would have done it, then you would also have read this one

http://www.maxim-ic.com/appnotes....number/857

which clearly states that relevant pull-ups are needed at the master!

So, connecting your 1-wire circuitry directly to port0 pin without any additional pull-up, will definitely result in total desaster!


Kai

List of 9 messages in thread
TopicAuthorDate
1-wire question            01/01/70 00:00      
   RE: 1-wire question            01/01/70 00:00      
      RE: 1-wire question            01/01/70 00:00      
         RE: 1-wire question            01/01/70 00:00      
   Lack of searching first!            01/01/70 00:00      
      RE: Lack of searching first! - Not.            01/01/70 00:00      
         RE: Lack of searching first! - Not.            01/01/70 00:00      
   RE: 1-wire question            01/01/70 00:00      
   Its all in the docs!            01/01/70 00:00      

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