From: "Heinz-Jürgen Oertel" <oe@emtas.de>
To: Ratheendran <ba.rsrajeshwaran@tataelxsi.co.in>
Cc: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be>,
linux-can@vger.kernel.org
Subject: Re: detect auto baud rate on can bus in linux driver.
Date: Tue, 29 Apr 2014 16:12:51 +0200 [thread overview]
Message-ID: <8638796.WNtrS54FvS@laura> (raw)
In-Reply-To: <535FA7BB.3070700@tataelxsi.co.in>
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Am Dienstag, 29. April 2014, 18:53:07 schrieb Ratheendran:
> this mode, transmission is disabled, all error counters are frozen and
> the module operates
> in a CAN Error Passive mode. Only messages *acknowledged by another CAN
> station* will be received.
In this case always two nodes already communicating are needed in order for
the node doing the auto detection.
> If FLEXCAN detects a message that has not been acknowledged, it will
> flag a BIT0 error (without changing the REC), as if it was trying to
> acknowledge the message."
Is this BIT0 somehow exported to user space by SocketCAN to get the
information
"received valid (+ CRC) message but without seeing an ACK" ?
--
Mit freundlichen Grüßen
Heinz-Jürgen Oertel
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next prev parent reply other threads:[~2014-04-29 14:13 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-24 13:20 detect auto baud rate on can bus in linux driver Ratheendran
2014-04-27 9:44 ` John Whitmore
2014-04-27 18:01 ` Kurt Van Dijck
2014-04-29 8:33 ` Ratheendran S. Rajeshwaran
2014-04-29 8:35 ` Ratheendran S. Rajeshwaran
2014-04-29 19:58 ` Robert Schwebel
[not found] ` <5360E8A6.8040204@tataelxsi.co.in>
2014-04-30 14:41 ` Kurt Van Dijck
2014-04-30 16:35 ` Oliver Hartkopp
2014-05-01 18:49 ` Kurt Van Dijck
[not found] ` <5363243E.7070406@tataelxsi.co.in>
2014-05-02 11:00 ` Kurt Van Dijck
2014-04-29 12:47 ` Heinz-Jürgen Oertel
[not found] ` <535FA7BB.3070700@tataelxsi.co.in>
2014-04-29 14:12 ` Heinz-Jürgen Oertel [this message]
[not found] ` <535F5449.7000108@tataelxsi.co.in>
2014-04-29 13:33 ` Kurt Van Dijck
2014-04-29 14:12 ` Wolfgang Grandegger
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