Usb Trigger - Rigol DS6000 Series User Manual

5 To Trigger the Oscilloscope

USB Trigger

Trigger on the SOP, EOP, RC, Suspend and ExitSuspend of the data packet on the
differential USB data cable (D+ and D-). This trigger supports USB Low Speed and
Full Speed. The figure below shows the USB data transmission protocol.
Trigger Type:
Press Type to select "USB". At this point, the trigger setting information as shown in
the figure below is displayed at the upper-right corner of the screen.
Source Selection:
Press D+ and D- to specify data sources for D+ and D- data cables respectively.
CH1-CH4 can be selected as the data source. The current trigger source is displayed
at the upper-right corner of the screen.
Signal Speed:
Press Speed to select "Low Speed" (1.5 Mb/s) or "Full Speed" (12 Mb/s).
Trigger Condition:
Press When to select the desired trigger condition.
SOP: trigger at the sync bit at the beginning of the data packet (SOP).

EOP: trigger at the end of the SEO portion of the data packet (EOP).

RC: trigger when SEO is greater than 10 ms.

Suspend: trigger when the bus enters the idle state for more than 3 ms.

ExitSuspend: trigger when the bus exits from the idle state for more than 10

ms.
DS6000 User's Guide
RIGOL
5-31