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???
01/14/09 22:09
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#161514 - reply to Andy Neil
Responding to: ???'s previous message
Andy Neil said:
What if both RI and TI are set on entering the ISR...?


I thought of that. From what I know, RI or TI will be set when a byte has been fully transmitted or fully received.

IF RI is set, it will be dealt with in the ISR. IF TI is set, the only way it would be set is if the OutChar routine was called, in which case TI would be cleared immediately upon returning from the interrupt. I can't see a problem if they were both set at the same time.



List of 23 messages in thread
TopicAuthorDate
serial interrupt?            01/01/70 00:00      
   Your Problem            01/01/70 00:00      
      still not working            01/01/70 00:00      
         you need to flag somehow the end of transmission            01/01/70 00:00      
            reply to Jan            01/01/70 00:00      
   Several            01/01/70 00:00      
      To Hans            01/01/70 00:00      
         And my reply to Charles            01/01/70 00:00      
   no interrupts works            01/01/70 00:00      
   the solution            01/01/70 00:00      
      Isn't that what Hans said?            01/01/70 00:00      
      Perfectly????? Prolly should look again.            01/01/70 00:00      
         Got to look ahead...            01/01/70 00:00      
         Another thing to consider            01/01/70 00:00      
            reply to Andy Neil            01/01/70 00:00      
         reply to Michael Karas            01/01/70 00:00      
      why is this a bad idea            01/01/70 00:00      
         Exactly why not perfect !!!            01/01/70 00:00      
         response to Jan Waclawek            01/01/70 00:00      
            interrupts forever            01/01/70 00:00      
            nope            01/01/70 00:00      
               Re: Erik            01/01/70 00:00      
   if you HAVE to mix ...            01/01/70 00:00      

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