Hi,
I'm using the CAN features, both triggering and decoding, and I'm a little confused by the setup. I've got CANH on CH1 and CANL on CH2 and can get the functions to work with Source selected as CANH, CANL, or CANH-CANL. CANH and CANL each have their own threshold, and that makes sense, although it may not work correctly on a system with large but acceptable common-mode noise level. The CANH-CANL choice would seem to make more sense, but there's no threshold adjustment for the difference. Does anyone know precisely what the scope is doing in that case? Experimentally, it seems to not be different than just using CANL.
There's also an odd bug in which the thresholds for CANH and CANL can't be set to greater than 0.75 V, but selecting 1x instead of 10x probe setting allows setting of a useful value (e.g. 0.34 V), and after resetting the probes to 10x the useful value is scaled correctly (e.g. 3.4 V).
I also notice that the CAN decoding doesn't work for history pages, the decoded values stay on the screen but only reflect the value of the last capture.
Thanks.