>   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.


********************************************************************
Olin Lathrop, embedded systems consultant in Littleton Massachusetts
(978) 742-9014, olin@embedinc.com, http://www.embedinc.com

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