> Charles Garcia-Tobin wrote:
>
> Hi there
>
>          I am having a major headache with comms and I need some help.
> I am using a pic16c76 coupled with a radiometrix wireless rs232, after
> the random-th overrun error, no amount of receiver resetting seems to
> get rid of it. The program runs fine for a while. Then I obtain an
> overrun error. On receive interrupt I attempt to clear the overrun as
> follows:

>         movf    RCREG,w                 ; read twice

Just a few guesses...


I don't know it if does anything, but I usually flush the receive buffer
by reading 3 times.

I wonder what happens if you disable the Async port, (clear RCSTA) and
then reenable it.

Does "bcf RCSTA,CREN" disable the receive FIFO logic??

        movf    RCREG,w
        movf    RCREG,w
        movf    RCREG,w
        bcf     RCSTA,CREN              ; turn reception off
        bsf     RCSTA,CREN              ; turn it on again

--
Best regards

Tony

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