368 Agilent InfiniiVision 3000 X-Series Oscilloscopes User's Guide
24 FlexRay Triggering and Serial Decode
6 Press Source and select the analog channel that is probing the FlexRay
signal.
7 Press Threshold; then, turn the Entry knob to set the threshold voltage
level.
The threshold level should be set below the idle level.
The threshold voltage level is used in decoding and will become the
trigger level when the trigger type is set to the selected serial decode
bus.
8 Press Baud and select the baud rate of the FlexRay signal being probed.
9 Press Bus and select the bus type of the FlexRay signal being probed.
It is important to specify the correct bus because this setting affects
CRC error detection.
10 Press Auto Setup to perform the following actions:
• Sets the selected source channel's impedance to 50 Ohms, assuming a
differential active probe that requires a 50 ohm termination is being
used .
• Sets the selected source channel's probe attenuation to 10:1.
• Sets the trigger level (on the selected source channel) to - 300 mV.
• Turns on trigger Noise Reject.
• Turns on Serial Decode.
• Sets the trigger type to FlexRay.
FlexRay Triggering
To set up the oscilloscope to capture a FlexRay signal, see "Setup for
FlexRay Signals" on page 367.
After you have set up the oscilloscope to capture a FlexRay signal, you
can then set up triggers on frames (see page 369), errors (see page 370),
or events (see page 370).
To display FlexRay serial decode, see "FlexRay Serial Decode" on page 371.
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