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???
09/13/07 16:41
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#144573 - my quick test is:
Responding to: ???'s previous message
Dear 5678,

Welcome to 8052.com.

... after successful autobauding (UUUU), I type in the following (I do it so often I even don't need to count the zeros or think about the checksum):
:020000050000F9
and the echo should look like:
:020000050000F9BF.

If not, it's some user program which dumbly echoes what's typed in; or, worse, the terminal program has turned local echo on and there was no successful autobaud.

Please come back with your results.

JW



List of 9 messages in thread
TopicAuthorDate
Checksum calculation for P89V51RD2 burning            01/01/70 00:00      
   Checksums in Intel Hex Files            01/01/70 00:00      
      FYI: more on intel hex files            01/01/70 00:00      
   my quick test is:            01/01/70 00:00      
      The bootloader sends 'R'            01/01/70 00:00      
         you have to erase flash before you program it...            01/01/70 00:00      
            Echo is very slow            01/01/70 00:00      
               are you sure it's not the VB response...            01/01/70 00:00      
               USB - RS232 converter?            01/01/70 00:00      

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