Jen,

How do you 'print' out the data received?  By outputing them to LEDs?
Transmitting the received data again to a PC?  I am trying to see if
it's possibly the code.


Rudy


> The transmission is from PIC to PIC - one USART to another.  The
sending PIC
> is a 16F627.  The scope readings show perfect 5V signals at 9600 baud.
> There is no parity bit, only 8 data bits, plus start and stop bit.
>
> Jen
>
> > > Despite accurate signal levels, debugging RCREG immediately
> > after data is
> > > received reveals that the byte seems to flip back and forth.
> > >
> > > e.g., a byte equal to 4 (dec) will oscillate between 4 and
> > 32.  A byte
> > equal
> > > to 1 will oscillate between 1 and 128, etc.
> > >
> > > Again, this value is being read immediately after reception
> > (triggered by
> > RX
> > > interrupt), so it is highly unlikely that program code
> > could be altering
> > the
> > > register after reception.
> > >
> > > Has anyone seen a problem like this before, or perhaps have
> > any ideas as
> > to
> > > its cause?  I have been stumped on this for a while, so ANY
> > help would be
> > > greatly appreciated!
> >

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