RIGOL DS6000 Series - Manual (Page 122)

RIGOL 5 To Trigger the Oscilloscope
DS6000 User’s Guide 5-30
USB Trigger
Trigger on the SOP, EOP, RC, Suspended and Exit Suspended 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.
 Suspended: trigger when the idle time of the bus is greater than 3 ms.
 ExitSuspended: trigger when the bus exits from idle state for more than 10
ms.