On Tue, 14 Aug 2001, Alan B. Pearce wrote:

> >>   Its's not enough. Will work only first time after a reset. I've tested.
> >> Next time when will come a character with other baud rate, the receiver
> >> it's still stick on the old baudrate and a frame error will occur. Before
> >> setting a new value for SPBRG and BRGH, a reset must be produced and new
> >> values could be written in those register.
>
> >I know you say you've tested this, but I still find this very hard to
> >believe.  Did you try completely disabling the UART, changing the baud
> rate,
> >then enabling the UART again?  I have a feeling something else was going on
> >in your test that made it appear as if the processor had to be reset to
> >change baud rate.
>
> >I don't have time to test this now myself, but this is just too bizarre for
> >me to believe without seeing it myself where I can carefully control the
> >conditions to my own satisfaction.
>
>
> I do not believe it either. Have a look in the archive for some code that
> someone posted where they change the baud rate on the fly, using the A/D
> converter and a pot as the input method to get the new baud rate. If there
> really are problems like you describe, then this should show you how to
> overcome them.
>
  don't you remember the whole subject name ?
  Thanks, Vasile

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