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???
05/05/08 11:17
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#154419 - Read the data sheets carefully
Responding to: ???'s previous message
The Vdd supply to the micro and LCD must be within acceptable operating limits.

There are many measures you can take to ensure the Vdd supply is stable.

You can confirm the AC supply is noisy by using a battery (with the correctly regulated supply) connected to Vdd.... If no problems with external battery source - then you must clean up the supply to your design.

Joe


List of 12 messages in thread
TopicAuthorDate
LCD Problem            01/01/70 00:00      
   Read the data sheets carefully            01/01/70 00:00      
      add el.capacitor 10..100 microF close to LCD            01/01/70 00:00      
         a common "mistake"            01/01/70 00:00      
            please, not again            01/01/70 00:00      
               You just don't like the facts, Erik ...            01/01/70 00:00      
               Choosing big Capacitance values            01/01/70 00:00      
                  response time?            01/01/70 00:00      
   LCD Problem !!!!            01/01/70 00:00      
      Have you tested Joe\'s procedure?            01/01/70 00:00      
      so post Your sourcecode            01/01/70 00:00      
      Write your initialization code in ASM!            01/01/70 00:00      

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