Hi PIClisters,

I have a specific problem with PIC16C63' UART. I am not able to find any
application notes / codes for UART's at the Microchip web site.

Below is the receive routine for a the PIC.

receive         btfsc rcsta,1
                    call clearerror
                    btfsc rcsta,2
                    call clearerror

                    clrwdt
                    btfss pir1,rcif
                    goto receive
                    movf rcreg,w
                    movwf rxchar
                    retlw 01h
;---------------
clearerror     bcf rcsta,cren
                    bsf rcsta,cren
                    retlw 0

If an OVERRUN error occurs, the error flag gets cleared by running the
CLEARERROR routine.
If a FRAMING error occurs, running CLEARERROR routine does not clear the
FRAMING ERROR flag.

Could you whio have used 16C63's UART let me know
1. if FRAMING ERROR inhibits further receiption of data on the receive
line.
2. What other ways are there to clear the FRAMING ERROR flag ?
3. Would a software restart to 0000 address reset the FRAMING ERROR flag
? OR
4. Should I reinitialise the UART registers ?

Thanks in advance.

Regards

Pailoor

Website : http://business.vsnl.com/chiptech


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