User Manual

5 To Trigger the Oscilloscope RIGOL
MSO4000D/S4000 User’s Guide
5-35
Trigger Condition:
Press When to select the desired trigger condition.
 Frame: trigger on the frame of FlexRay bus.
 Symbol: trigger on the CID (Channel Idle Delimiter), CAS (Collision Avoidance
Symbol), MTS (Media Access Test Symbol) and WUP (Wakeup Pattern) of
FlexRay bus.
 Error: trigger when error occurs to FlexRay bus, including header CRC error
and frame CRC error.
 TSS: trigger on the transmission start sequence of FlexRay bus.
Note: FlaxRay frame rates can be very low. It is recommended to set the oscilloscope
to “Normal” trigger mode to prevent the instrument from triggering automatically on
the specified frame. The same goes for “Error” trigger conditions. In addition, the
trigger holdoff might need to be adjusted to view a specified error when multiple
errors occur at the same time.
Trigger Mode:
Press Sweep to select the Trigger Mode (page 5-3) under this trigger type as auto,
normal or single. The corresponding status light of the current trigger mode turns on.
Trigger Setting:
Press Setting to set the trigger parameters (trigger coupling, trigger holdoff and
noise rejection) under this trigger type.
Trigger Level:
Use TRIGGER LEVEL to modify the level. For details, please refer to the
description of “
Trigger Level” on page 5-9.