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???
04/15/09 20:20
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#164631 - aren't the LPC9xx's pins...
Responding to: ???'s previous message
Marshall Brown said:
It happens on my emulator PDS900 with no I/O connected at all, just the box sitting on the desk.


... set as true-high-impedance-input at reset?

If so, anything may happen to a floating input...

JW


List of 20 messages in thread
TopicAuthorDate
RI always set after EA Set            01/01/70 00:00      
   I don't know, but...            01/01/70 00:00      
      your application should be designed so as to be tolerant            01/01/70 00:00      
   Check if the Rx pin is pulled low?            01/01/70 00:00      
      Ports are set as:            01/01/70 00:00      
         without looking at the datasheet, I can say it is wrong            01/01/70 00:00      
            Why?            01/01/70 00:00      
               I did not clean my glasses            01/01/70 00:00      
                  Config Registers            01/01/70 00:00      
         Check the BR and FE bits in SSTAT.            01/01/70 00:00      
            Yes they are set - Why?            01/01/70 00:00      
   When do you start the BRG?            01/01/70 00:00      
      BRG set as part of UART Init (before EA)            01/01/70 00:00      
         I would...            01/01/70 00:00      
            Thanks - Done            01/01/70 00:00      
   aren't the LPC9xx's pins...            01/01/70 00:00      
      Yes but - it also happens in the real hardware            01/01/70 00:00      
         the point of asking nonsense questions...            01/01/70 00:00      
            Understood, appreciate being 2nd guessed            01/01/70 00:00      
               The Teddy Bear Effect            01/01/70 00:00      

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