Lpc2000

Hello,
 
my problem seems to be, that I´m using the internal triple transmit
buffer. In the errata sheet is mentioned, that it doesn´t work
correctly. I will change the software and switch to software buffer.
 
but thanks a lot for the hint to the errata sheet. Does anyone know,
from which production data this bug is corrected?
 
Regards, Andreas

-----Ursprüngliche Nachricht-----
Von: lpc2000@yahoogroups.com [mailto:lpc2000@yahoogroups.com] Im Auftrag
von gerhard_uttenthaler
Gesendet: Donnerstag, 15. September 2005 11:06
An: lpc2000@yahoogroups.com
Betreff: [lpc2000] Re: CAN: ID0 - Messages: Problem


--- In lpc2000@yahoogroups.com, "cabrioandi" <andi.reinhold@g...>
wrote:
> Hello,
> 
> I´m using the LPC2119 as a CAN-Gateway (24MHz crystal, CAN
83.3kBaud). 
> I´ve got 50 different ID´s on the CAN. There is also the ID0
appearing. 
> Sometimes the ID 0 is written with wrong data and DLC. This problem 
> appears only with the Message ID0. Has anyone had the same problem
or 
> knows what can be wrong?
> 
> many thanks, Andreas

Hi Andreas,

There is a bug mentioned in a philips errata sheet, noted as CAN.7.
http://www.semiconductors.philips.com/acrobat/erratasheets/2129.pdf

If you receive a message, while you are trying to send another message
and you lose arbitration, the received message may be corrupt.

This errata is for the 2129, but the CAN part should be the same with
the 2119, philips_apps?

Regards
Gerhard





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