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???
05/29/10 17:32
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 		 #176304 - Yes, I think I've done this correctly
Responding to: ???'s previous message
Thanks for your comment. I believe I've done this correctly. I have:
  • Set up the timer and serial port mode.
  • clr RI1
  • clr TI1
  • setb ES1
  • setb EA
  • setb TR1 (I'm using timer 1 in auto-reload mode to generate the baud rate)
  • Send characters to the device and wait for an interrupt, which never happens.
Is there anything wrong with this, or anything else I need to do?

Thanks - Rowan

List of 38 messages in thread
TopicAuthorDate
Trouble with interrupt driven comms on 80C320 serial port 1            01/01/70 00:00      
   CLR ES1?            01/01/70 00:00      
      Good idea but not the solution            01/01/70 00:00      
         As Erik posted, may be the etc. part            01/01/70 00:00      
   I cant' tell if there is a problem in ...            01/01/70 00:00      
      Which ... are you worrying about?            01/01/70 00:00      
         How about commenting "etc"            01/01/70 00:00      
         please post as is, not all the ...            01/01/70 00:00      
            Again without the conditionals            01/01/70 00:00      
               this is NOT an ISR            01/01/70 00:00      
                  Why will jnb RI,$ screw up?            01/01/70 00:00      
                     stick a state machine in the ISR            01/01/70 00:00      
                        To interrupt or not...            01/01/70 00:00      
                           an example            01/01/70 00:00      
                              Avoid infinite loops like the plague            01/01/70 00:00      
                                 Back to the subject - why won't it interrupt?            01/01/70 00:00      
                                    Serial Port Interrupts            01/01/70 00:00      
                                       Yes, I think I've done this correctly            01/01/70 00:00      
                                          Vector Address...            01/01/70 00:00      
                                             I think I've done this correctly...            01/01/70 00:00      
                                                you had me there            01/01/70 00:00      
                                                   Serial port, not port            01/01/70 00:00      
                                          maybe not            01/01/70 00:00      
                                             ES1 is non-standard            01/01/70 00:00      
                                                probably the most common misumderstanding            01/01/70 00:00      
                                                   Thanks for clarification...            01/01/70 00:00      
                                             It works without interrupts...            01/01/70 00:00      
                                                then ...            01/01/70 00:00      
                                                   Even Better ...            01/01/70 00:00      
                                    maybe it does            01/01/70 00:00      
                                       Two things argue against this...            01/01/70 00:00      
   Dunno, but that's a very useful instruction            01/01/70 00:00      
   Dunno..            01/01/70 00:00      
      I have problem with serial port 1 on ds89c450 (www.maxim-ic            01/01/70 00:00      
         MUCH better description needed            01/01/70 00:00      
            not it is not language            01/01/70 00:00      
               Which register bank are you using?            01/01/70 00:00      
                  yes it works now            01/01/70 00:00      

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