On Mon, 13 Aug 2001, Olin Lathrop wrote:

> >   Olin, if you remember, a while ago I've asked the same question. My
> > purpose was an autobaud asynchronous routine. This sort of routines have
> > usual a calibration character. Well, I've done it without this, but I need
> > a reset. I'm still search for good  software reset. Else I can't switch
> > from 115200 bauds to one step backward ( measured in standard baud rate ).
> > This could be a good reason, or do you have another method ?
>
> You don't need to reset the processor to change the baud rate, just change
> the SPBRG register and possibly the BRGH bit in TXSTA.
>
  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.

Vasile

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