Chapter 5 Trigger RIGOL
DS4000E User’s Guide 5-43
FlexRay Trigger
DS4000E can trigger on the specified frame, symbol, error or TSS of the FlexRay bus.
FlexRay is a type of differential serial bus configured with three continuous segments
(namely packet header, payload and packet trailer). Its data transmission rate is up
to 10 Mbps. Each frame contains a static segment and a dynamic segment and ends
with the bus idle time.
The frame format of the FlexRay protocol is as shown in the figure below.
Figure 5-7 Frame Format of FlexRay Bus
Press MENU (in the trigger control area (TRIGGER) at the front panel) Type, turn
the multi-function knob to select “FlexRay” and press the knob. You can also
press Type continuously to switch to “FlexRay” trigger.
At this point, the trigger setting information (include the trigger type, trigger source
and trigger level, as shown in the figure below) is displayed at the upper-right side of
the screen and changes with the trigger setting.
1. Specify the trigger source and adjust the trigger level
1) Press Source to select CH1 to CH4 (please refer to “Trigger Source”).
The trigger source currently selected is displayed at the upper-right side of
the screen.
Note: Channels that are turned off can also be selected as the trigger
source.
2) Turn TRIGGER
LEVEL to adjust the trigger level (please refer to
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