352 Agilent InfiniiVision 3000 X-Series Oscilloscopes User's Guide
23 CAN/LIN Triggering and Serial Decode
6 Press Source; then, select the channel for the CAN signal.
The label for the CAN source channel is automatically set.
7 Press the Threshold softkey; then, turn the Entry knob to select the CAN
signal threshold voltage level.
The threshold voltage level is used in decoding, and it will become the
trigger level when the trigger type is set to the selected serial decode
slot.
8 Press the Baud softkey; then, turn the Entry knob to select the baud
rate that matches match your CAN bus signal.
The CAN baud rate can be set to predefined baud rates from 10 kb/s
up to 5 Mb/s or a user- defined baud rate from 10.0 kb/s to 4 Mb/s in
increments of 100 b/s. Fractional user-defined baud rates between
4 Mb/s and 5 Mb/s are not allowed.
The default baud rate is 125 kb/s
If none of the pre-defined selections match your CAN bus signal, select
User Defined; then, press the User Baud softkey and turn the Entry knob
to enter the baud rate.
9 Press the Sample Point softkey; then, turn the Entry knob to select the
point between phase segments 1 and 2 where the state of the bus is
measured. This controls the point within the bit's time where the bit
value is captured.
10 Press the Signal softkey and select the type and polarity of the CAN
signal. This also automatically sets the channel label for the source
channel.
• CAN_H — The actual CAN_H differential bus.
60%
70%
80%
Sample Point
One Bit
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