can bus decoding

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can bus decoding

Postby stefan1 » Sun Jan 03, 2010 1:50 am

i use picoscope 4423 .loaded in picscope 6 ver6.3.43.0 but no can bus decoding.is there an automotive version ,if so where can i download it from thanks stefan
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Re: can bus decoding

Postby PeterF » Sun Jan 03, 2010 10:28 am

Hi,
The default settings for the Automotive version of R6.3.43 is to have Spectrum, Persistence & Serial decoding turned off. To make them available, go to Tools, Preferences, Options and under Advanced Features, tick Spectrum, Persistence & Serial decoding. Click on Apply. To access CAN decoding, select Tools & then Serial Decoding.
Regards,
PeterF.
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Re: can bus decoding

Postby stefan1 » Mon Jan 04, 2010 1:22 am

Thanks peter for aquick response to my question about can bus.tried it and all works well.but what to do with all this info in real life. regards stefan
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Re: can bus decoding

Postby autologic » Sat Feb 20, 2010 8:31 pm

I have already used this feature on a BMW X3 with a LIN bus issue. Normal scoping of the LIN bus showed a normal pattern but decoding showed bit stuffing errors in all messages. I removed components off the bus until I found that the General module which is the master module of the LIN bus was putting out corrupt initialisation messages over and over. component activation with a diagnostic machine was neve an issue through the whole analysis. Without decoding the fix on this car could only have been parts swapping
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Re: can bus decoding

Postby Amechs » Sun Mar 21, 2010 11:32 pm

Autologic,
Any chance you could post some examples of the waveforms for us?

Thanks,
Paul.
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