From: Murray Jensen <Murray.Jensen@csiro.au>
To: "Jean Nicollerat MD" <jean.nicollerat@microdev.ch>
Cc: Linuxppc-Embedded <linuxppc-embedded@ozlabs.org>
Subject: RE: RTC with TQM823L
Date: Fri, 18 Mar 2005 08:36:27 +1100 [thread overview]
Message-ID: <6.2.0.14.0.20050318082431.01cd8238@localhost> (raw)
In-Reply-To: <HMECJAKDCPLOGPDHNAHEAEKHCAAA.jean.nicollerat@microdev.ch>
At 08:27 PM 17/03/2005, Jean Nicollerat MD wrote:
>I have to read message that comme on the CAN bus every 2ms. Then I have to
>show values on the LCD and transfers some message on the RS232.
Sounds like a simple device driver would handle this.
>I need a timer to the check the reception of the messages.
Could this be done by setting a timeout which you keep rescheduling?
Note that the standard clock tick on linux has 10ms resolution - i.e. 100Hz.
You might want to increase this to 1000Hz (i.e. 1ms resolution). I have read
of people doing this in this list.
>I seem it is difficult with linux.
No, its not difficult at all - its very easy. There is a learning curve
though, just
like anything. Cheers!
Murray...
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prev parent reply other threads:[~2005-03-17 10:46 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-17 7:47 RTC with TQM823L Jean Nicollerat MD
2005-03-17 8:23 ` Jaap-Jan Boor
2005-03-17 8:34 ` Wolfgang Denk
2005-03-17 9:27 ` Jean Nicollerat MD
2005-03-17 10:39 ` Wolfgang Denk
2005-03-17 21:36 ` Murray Jensen [this message]
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