Technical data

Verifying CAN Serial Bus Communication 9
Agilent InfiniiVision 7000B Series Oscilloscopes Evaluation Guide 49
9 Press [Digital] to turn on digital channels; then, press Turn off D15-D8 to
turn off these unused channels.
10 Next, press Bus; then, press Bus1 two times.
Note that Bus1 is an overlaid display of D7-D0. We will use this mode
later to make a time-correlated measurement. Let’s now set up the
oscilloscope to decode and trigger on CAN frames.
11 To turn on CAN decode, first press [Serial]; then, select the CAN serial
decode mode.
12 To set decoding for the appropriate baud rate, press Settings.
13 Press Baud.; then, select 125 kb/s.
14 To trigger on the channel 1 CAN signal, first press [Trigger]; then, select
the CAN triggering mode.
The oscilloscope should now be triggering on Start-of-frame (SOF) of any
CAN frame. Let’s now set up the oscilloscope to trigger on a specific data
frame ID (07F hex).
15 Press Trigger: SOF; then, select Data Frame ID (~RTR) as the CAN
triggering mode.
16 Press Bits.
17 Next, press Hex; then, select “F”.