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???
12/15/10 07:58
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 		 #180150 - Ridiculous - but not unique, I'm afraid
Responding to: ???'s previous message
Erik Malund said:
Your MCU data sheet says that the I2C peripheral does not support repeated start sequences.

that is ridiculous, repeated starts is not a bell or a whistle, it is part of the IIC spec.


Indeed - but it wouldn't be the first such incomplete implementation!

Michael Karas said:
I really wonder what planet the chip designers were on when they conjured up the IP for this puppy. The chip design folks clearly have not had real world experience interfacing to a variety of I2C devices.

Yes, one does have to wonder...

:-(

Do they actually call this thing "I2C"?
I thought the reason why Philips/NXP keep hold of the rights to the name was to stop people calling their stuff "I2C" if it wasn't really a fully-compatible implementation...?



List of 36 messages in thread
TopicAuthorDate
Aaargh, it only works with the monitor connected            01/01/70 00:00      
   Scope            01/01/70 00:00      
      No obvious difference            01/01/70 00:00      
         May not help            01/01/70 00:00      
         Just a thought....            01/01/70 00:00      
   ground            01/01/70 00:00      
      Setup and hold            01/01/70 00:00      
         0ns hold is allowed indeed...            01/01/70 00:00      
            Bus Speed?            01/01/70 00:00      
               Reply to all            01/01/70 00:00      
                  Add capacitance :-|(            01/01/70 00:00      
                     Other options?            01/01/70 00:00      
                        Chip Types and Connections            01/01/70 00:00      
                           chip type            01/01/70 00:00      
                           ADuC7026 and 24LC16            01/01/70 00:00      
                              If serial EEPROM not in critical path...            01/01/70 00:00      
                                 Another thing...            01/01/70 00:00      
                                    that is ridiculous!!!            01/01/70 00:00      
                                       I know...            01/01/70 00:00      
                                       Ridiculous - but not unique, I'm afraid            01/01/70 00:00      
                                          Fully licensed interface            01/01/70 00:00      
                                             Stop Timing?            01/01/70 00:00      
                                                If I could figure out how            01/01/70 00:00      
                     Resolved? 39pF added to SDA            01/01/70 00:00      
                        NOw..ok            01/01/70 00:00      
                           Chewing gum            01/01/70 00:00      
                              Agreed            01/01/70 00:00      
                           Where?            01/01/70 00:00      
                        points            01/01/70 00:00      
                           "Features of a 51"...            01/01/70 00:00      
         do You have            01/01/70 00:00      
         to long track of SDA and SCL            01/01/70 00:00      
            huh?            01/01/70 00:00      
               the cable also            01/01/70 00:00      
                  re: the cab;e            01/01/70 00:00      
                     Capacitance slows flanks - but slow flanks needs hysterese            01/01/70 00:00      

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