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RIGOL Chapter 5 To Trigger the Oscilloscope
5-42 DS8000-R User Guide
FlexRay Trigger (Option)
DS8000-R can trigger on the specified frame, symbol, error, or position of the
FlexRay bus.
FlexRay is a type of differential serial bus configured with three consecutive
segments (i.g. header, payload, and trailer). Its data transmission rate is up to 10
Mb/s. Each frame contains a static segment and a dynamic segment, and ends with
the bus idle time.
Its format is as shown in the figure below.
Figure 5-19 Frame Format of FlexRay Bus
Trigger Type:
Click Type to select "FlexRay". Then, the current trigger setting information is
displayed at the upper-right corner of the screen, as shown in the figure below.
Source Selection:
Click Source to open the signal source list and select CH1-CH4. For details, refer to
descriptions in "Trigger Source". The current trigger source is displayed at the
upper-right corner of the screen.
Note: Only when we select the channel (that has been input with signals) as the
trigger source, can we obtain a stable trigger.
Baud Rate:
Click Baud to select a FlexRay baud rate that matches the FlexRay bus signal. The
available baud rates are 2.5 Mbps, 5 Mbps, and 10 Mbps.
Trigger Condition:
Click When to select the desired trigger condition.
âš« Post: triggers on the specified position of the FlexRay bus. Click Post to select
"TSS End", "FSS_BSS End", "FES End", or "DTS End".
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