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???
10/06/05 06:21
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#102009 - my experience
Responding to: ???'s previous message
hi,

Jeff Corr said:
As for everyone who uses something other than an 11.059Mhz, what do you use? Are there any other crystals that produce a wide range of baud rates, perhaps just not as close, as the 11.059?


I have used 18,432MHz to obtain most baudrates.
In fact you may found useful information in datasheets about UART bootloaders. For example, Atmel AT89C51CC03 UART bootloader datasheet shows most possible combinations of frequences and supported baudrates at pages 8 and 9.
Just one note: this answer depends on derivatives and their features built-in. There are derivatives with x2 mode, with enhanced timer, with PLL, with additional baud rate generator etc.

Regards,
Oleg

List of 31 messages in thread
TopicAuthorDate
Other crystals?            01/01/70 00:00      
   my experience            01/01/70 00:00      
      dallas            01/01/70 00:00      
         RTFM            01/01/70 00:00      
            the speedy '450            01/01/70 00:00      
               why 8MHz?            01/01/70 00:00      
                  crystals            01/01/70 00:00      
         '420            01/01/70 00:00      
         errata?            01/01/70 00:00      
   22.1184MHz            01/01/70 00:00      
      since when?            01/01/70 00:00      
         the tiny asterisk...            01/01/70 00:00      
   Baud rates            01/01/70 00:00      
      crystals, but problem fixed.... sorta :)            01/01/70 00:00      
         10472 baud            01/01/70 00:00      
            but Atmel            01/01/70 00:00      
               8 bits autobaud            01/01/70 00:00      
                  explanation            01/01/70 00:00      
            dallas            01/01/70 00:00      
   7.3728MHz            01/01/70 00:00      
      Lower clock frquency            01/01/70 00:00      
         backslashes            01/01/70 00:00      
            New Server Problems?            01/01/70 00:00      
         lol            01/01/70 00:00      
         Go on laughing...            01/01/70 00:00      
            rise/fall time?            01/01/70 00:00      
               that is absolutely correct, but what mak            01/01/70 00:00      
                  jetplanes            01/01/70 00:00      
               It's a combination of both            01/01/70 00:00      
                  thread            01/01/70 00:00      
                     This is for the XA which has a UART that            01/01/70 00:00      

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