Thanks for the response BillW.

The reason is that I'm not using assembler for this, and the read will
slow things down, and it's a waste of CPU time if I don't want the data,
hence hoping for something like a quick bit set.

Joe


-----Original Message-----
From: William "Chops" Westfield [mailto:westfw@mac.com] 
Sent: 29 January 2009 15:52
To: Joe P. Farr
Subject: Re: [PIC] Serial buffer on 18F4550


On Jan 29, 2009, at 7:11 AM, Joe P. Farr wrote:

> As I understand the datasheet, the 18F4550 contains a 2 byte RX buffer
> for the EUSART.
>
> If there a way to clear this buffer without reading off the data ?
>
> I've looked at the RCSTA register and was hoping to see a ClearBuffer
> type bit but nothing.

Read the rx buffer twice.  Ignore what you read.  All gone.
(why do you specifically wan to avoid reading the data?)

BillW

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