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???
02/08/06 19:13
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 		 #109547 - No
Responding to: ???'s previous message
The timeout has to do with the fact SMBus batteries can be removed in the middle of a transmission. Plus the spec assumes multi- master. It does not want any device hogging the bus.
I2C assumes one predefined system. You should know how long some thing takes. Then, set a timeout in code. hanging in an embedded system is a bad plan.

BTW Microchip has document showing the differences between the 2 buses, one page I believe.

List of 35 messages in thread
TopicAuthorDate
I2C bit banging            01/01/70 00:00      
   It has I2C bus            01/01/70 00:00      
      question, language and added info            01/01/70 00:00      
         SMB more reliable?            01/01/70 00:00      
            I never hung            01/01/70 00:00      
               Hanging I2C            01/01/70 00:00      
                  No LCD drivers, no hotplug            01/01/70 00:00      
                  Hanging I2C, and freeing it again            01/01/70 00:00      
                     Me too!            01/01/70 00:00      
                        which confirm            01/01/70 00:00      
                           So you've never had to            01/01/70 00:00      
                              I tend to fix hardware shortcomings with            01/01/70 00:00      
                                 Like I said, lucky.            01/01/70 00:00      
                                    doing the impossible            01/01/70 00:00      
                                       Even a nice word for it!            01/01/70 00:00      
                              Look at the philips I2C bus muxes            01/01/70 00:00      
                                 That would make sense            01/01/70 00:00      
            No            01/01/70 00:00      
               For hot plug use SMB            01/01/70 00:00      
               differences SMB IIC            01/01/70 00:00      
   I2C with hang recovery            01/01/70 00:00      
    I2C bit banging: yes !            01/01/70 00:00      
      I see nobody "fighting"            01/01/70 00:00      
         Re Erik            01/01/70 00:00      
            WHO, in his/her right mind would use pol            01/01/70 00:00      
               Really ?            01/01/70 00:00      
                  never used the 552            01/01/70 00:00      
                     HW-I2C not identical !            01/01/70 00:00      
                        where did you gtet that impression?            01/01/70 00:00      
                           Nice            01/01/70 00:00      
                           Re: SW-I2C efficiency            01/01/70 00:00      
                              then the question is "when"            01/01/70 00:00      
                                 No illnes seen until today            01/01/70 00:00      
                                    well, I can't            01/01/70 00:00      
            Good point            01/01/70 00:00      

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