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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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Murray Jensen, CSIRO Manufacturing & Infra. Tech.      Phone: +61 3 9662 7763
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      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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