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???
03/17/07 21:09
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 		 #135179 - Re: External memory?
Responding to: ???'s previous message
Richard,

I don't fully understand the configuration of the emulator, but the code obviously cannot reside in the internal ROM, as I can run my programs just after the compilation.

However, I am sure the EA pin is connected to Vcc.

I thought the board where the microcontroller is inserted (the one included with the emulator) made the micro think it was working with the internal ROM, while actually the emulator was giving him the instructions.

So, do you think this necessarily implies the use of P0 and P2? This would mean that the emulator doesn't allow to use such ports for I/O, which I haven't found in the documentation yet.

Regards,
Mikel


List of 29 messages in thread
TopicAuthorDate
Unable to use P0 and P2            01/01/70 00:00      
   How do you detect that it's ignored?            01/01/70 00:00      
      Philips 80C52            01/01/70 00:00      
         Re: 80xxx            01/01/70 00:00      
         External memory?            01/01/70 00:00      
            Re: External memory?            01/01/70 00:00      
               Check the datasheet!            01/01/70 00:00      
                  More information            01/01/70 00:00      
                     80C52            01/01/70 00:00      
                        I think it does have internal ROM            01/01/70 00:00      
                           oops!            01/01/70 00:00      
         ICE or Eprom Emulator ?            01/01/70 00:00      
            It is an in-circuit emulator            01/01/70 00:00      
   my assumption            01/01/70 00:00      
      I'm afraid it can't be            01/01/70 00:00      
         There's a special "once" mode ... for emulators            01/01/70 00:00      
         try this            01/01/70 00:00      
            Re: try this            01/01/70 00:00      
               My guess            01/01/70 00:00      
                  Read the datasheets and read the posts, Mike            01/01/70 00:00      
            How is all this supposed to help?            01/01/70 00:00      
               It has code space...            01/01/70 00:00      
                  Where did you get that nonsense, Mike?            01/01/70 00:00      
   My conclusion:            01/01/70 00:00      
      What has it to do with the original question?            01/01/70 00:00      
   I do not know your emulator, but            01/01/70 00:00      
      My conclusion (and thanks for everyone)            01/01/70 00:00      
         then why not say so            01/01/70 00:00      
         Emulator            01/01/70 00:00      

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