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???
12/27/07 13:13
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 		 #148786 - single, double and ring buffer app dependent
Responding to: ???'s previous message
If there is a firm protocol, especially one with acknowledge, a single/double buffer is often the better choice.
However, when there is only 'bytes' a ring seems the logical choice.

Anyhow, the point is that by using interrupt and buffer you gain a lot of flexibility as opposed to polling that usually end up biting you in a place that will make it hurt when you sit down.

I can not count the number of 'working' setups using polling I have seen that fell apart because of a change that "had no effect on I/O"

Erik


List of 34 messages in thread
TopicAuthorDate
Having problem on using interrupt            01/01/70 00:00      
   Answers            01/01/70 00:00      
      not so fast, Cristoph and to Ragu            01/01/70 00:00      
         Serial comm is slow.            01/01/70 00:00      
            if you read the OP            01/01/70 00:00      
               good interupts            01/01/70 00:00      
                  AAAAAARGH            01/01/70 00:00      
                     not AAAAAAAARGH            01/01/70 00:00      
                        OH YES            01/01/70 00:00      
                           do You ever avoid "non-debuggable"?            01/01/70 00:00      
                              always            01/01/70 00:00      
                                 nice            01/01/70 00:00      
                                    a trick for "long ISRs" better than a RTOS            01/01/70 00:00      
         Buffered RX            01/01/70 00:00      
            not much difference            01/01/70 00:00      
               You are right            01/01/70 00:00      
   Sucess with interrupts            01/01/70 00:00      
      Isn't it too short?            01/01/70 00:00      
         the reason for circular buffers            01/01/70 00:00      
            Worst case, instead of average            01/01/70 00:00      
               absolutely, just worst case is not as bad            01/01/70 00:00      
                  single, double and ring buffer            01/01/70 00:00      
                     single, double and ring buffer app dependent            01/01/70 00:00      
         and some more reasons to use (circular) buffers            01/01/70 00:00      
            buffer overflow error            01/01/70 00:00      
               Buffer overflow handling            01/01/70 00:00      
                  Buffering options            01/01/70 00:00      
                     Beauty contest !            01/01/70 00:00      
                        flexible is the best?            01/01/70 00:00      
                        Simplicity is always better            01/01/70 00:00      
                           simple is another word for            01/01/70 00:00      
                              Where is the borderline to stumble on            01/01/70 00:00      
                                 Copper Oxide            01/01/70 00:00      
               please exclude me from the 'we'            01/01/70 00:00      

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