How to catch a glitch

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26 May 2010
Posts:

I am using CS328A to analyze I2C lines. I am interested in triggering on a glitch on the SDA line that lasts less than 40 ns.
How should I set up the scope to do that?

28 May 2010
Posts: 73

Hi Elizabeth,
You use the Second Trigger by connecting the SDA line to channel A and select Use Trig 1 ~ 2 < min. Set min = 40n


Choose View | Trigger 2 Source and select Trigger 1 inverted

Set the level at whatever level is best for the glitch you want to find

That should find it for you.

Regards,
Roger
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