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???
02/13/06 19:52
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 		 #109881 - well, I can't
Responding to: ???'s previous message
Peter, if you read my posts, you will see I have, in none, stated "DO NOT bit-bang" I have no argument for that. What I argue against is your point "bit-bang is always better"

Since typically a main loop must be fast from the humans view, no human was able to detect a 100µs delay.
If all your applications "interface with humans" sure, but many '51 apps do not. When you "interface with humans", you typically have "all the time in the world".

And again, I know no main loop which can not tolerate several 100µs delay.
well, I can't 100µs would be 20% of my loop

On my experience a HW-I2C was only really needed in very rarely cases or to support I2C slave or multimaster.
You keep banging on "needed" I have stated "in many cases you can use bit-bang with no ill effect, but, as I post, not in all. Should that be a reason to shun HW IIC?"

I really do not give a hoot if you "need" it I merely state "the overhead is less"

Erik

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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