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18F26K80 CAN bit rates 250 and 500

 
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PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Mon Oct 07, 2013 11:20 am     Reply with quote
Quote:
Can anyone share their working settings for 250 and 500 please?

Download and install the MBtime can bus baud rate calculator:
http://www.intrepidcs.com/support/mbtime.htm

Detailed instructions on how to use it with CCS:
http://www.ccsinfo.com/forum/viewtopic.php?t=22138&start=8
newguy



Joined: 24 Jun 2004
Posts: 1904

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PostPosted: Mon Oct 07, 2013 11:28 am     Reply with quote
Further to what PCM has posted, I had a lot of trouble with the CCS CAN functions with later version 4 compilers (4.100+) and dsPICs. I ended up having to completely set up the CAN registers myself. I have no experience with the version 5 compiler yet.
oxo



Joined: 13 Nov 2012
Posts: 219
Location: France

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PostPosted: Mon Oct 07, 2013 12:51 pm     Reply with quote
PCM programmer wrote:
Quote:
Can anyone share their working settings for 250 and 500 please?

Download and install the MBtime can bus baud rate calculator:
http://www.intrepidcs.com/support/mbtime.htm

Detailed instructions on how to use it with CCS:
http://www.ccsinfo.com/forum/viewtopic.php?t=22138&start=8


Thanks mate. I already tried It. Still the 500k doesn't work.
Ttelmah



Joined: 11 Mar 2010
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PostPosted: Mon Oct 07, 2013 1:32 pm     Reply with quote
Other thing to remember is that as frequencies get higher, so do the requirements to keep bus capacitance's low, terminate properly, etc. etc..

Best Wishes
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