3423

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oli

3423

Post by oli » Mon Jan 02, 2006 6:46 am

Hello,

Please confirm if the 3423 supplied in the auto kit can reliably
capture in real time, a complete CAN 2.0B message frame
at 1Mbit/s first time or will multible samples be required.

Sampling both CAN_H and CAN_L lines at the same time.

Then can we successfully zoom in and check bit timing without
losing integrity.


Regards,

Oli

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Autonerdz
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CAN

Post by Autonerdz » Mon Jan 02, 2006 4:11 pm

Oli,

I don't think that would be a problem. Of course it depends on how much time you put on the screen. Running two channels with 200ms on the screen, (20ms/div) your true sample rate will be 1.25 MHz and the samples will be 800 nanoseconds apart.

For other time bases you can calculate the sample rate using this calculator:

http://www.autonerdz.com/java/SampleRateCalculator.html

For two channel use, put in 256,000 for buffer and 10MHz for max sample rate.
Tom Roberts
(The Picotologist)
Autonerdz

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