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Thank you for your replies.
=20
I'm using Sipex SP232ACT.=20
=20
I'm using crystal oscillator. It might be problem with oscillator. I =
wanted to have PIC running at 40MHz on my board, but I didn't read the =
datasheet carefully ( yes, I know :-/ ) and instead of putting 10Mhz =
oscillator and using PLL I put 40MHz oscillator on the board. It is =
actually running at 13,3 Mhz now.=20
=20
Do you think that it might be the problem?
=20
I'll try lowering the baud rate anyway.
=20
Sam
=20
=20
=20

________________________________

From: piclist-bounces@mit.edu on behalf of Jinx
Sent: Fri 1/12/2007 11:00 PM
To: Microcontroller discussion list - Public.
Subject: Re: [EE] Very odd problem with RS232...




> You may be getting out of sync with the PIC and the PC if the
> frequency is off by more than a few percent.   Try lowering the
> baud rate on both the PC And your PIC board, and see if that
> makes any difference

Lowering the baud rate will just make errors take longer to happen.
If it is a timing problem, the PIC clock needs to be changed to match
the baud rate from the PC

Sam, are you going through an RS232 i/f (eg MAX232) ?

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