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???
11/29/07 04:23
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#147539 - UART tied up - EZ-LCD rate question
Responding to: ???'s previous message
The UART in the slave boards will be tied up communicating with EZ-LCD displays. I decided to use the "bit bang" method for the general communications between the master and slaves. Low speed opto's to receive and S to P OC drivers to send. VERY slow data rate.

The EZ-LCD calls for a baud rate of 115200 bps and I can't find a list of crystal frequencies and timer 1 reload values to obtain this baud rate using mode 1 with the AT89LP4052.

Anybody have those figures handy?

List of 24 messages in thread
TopicAuthorDate
master slave 8052 configuration            01/01/70 00:00      
   Options            01/01/70 00:00      
   Wait a minute - Bidirectional...?            01/01/70 00:00      
      MOSI TO MOSI            01/01/70 00:00      
         Eh??            01/01/70 00:00      
            page 40            01/01/70 00:00      
               Out of date?            01/01/70 00:00      
               Not bidirectional            01/01/70 00:00      
   use RS485 transmitters and receivers            01/01/70 00:00      
   That is not how it works            01/01/70 00:00      
      just clearing it up            01/01/70 00:00      
         UART tied up - EZ-LCD rate question            01/01/70 00:00      
            crystal frequencies and timer 1 reload values            01/01/70 00:00      
               A common crystal            01/01/70 00:00      
                  what is confusing?            01/01/70 00:00      
                  Synonyms            01/01/70 00:00      
                     crystal chosen            01/01/70 00:00      
                        read, READ, read the thread            01/01/70 00:00      
                           read-ed            01/01/70 00:00      
                              Kiel calculator revisit            01/01/70 00:00      
                                 correct, but there is s small problem            01/01/70 00:00      
                                    yes device differs            01/01/70 00:00      
            unless you have a very fast micro ...            01/01/70 00:00      
   ATMEL Baud rate calculator            01/01/70 00:00      

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