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Programming Guide DS2000 Series Digital Oscilloscope

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RIGOL<br />

2 Command System<br />

:TRIGger:USB:WHEN<br />

Syntax<br />

:TRIGger:USB:WHEN <br />

:TRIGger:USB:WHEN<br />

Description<br />

Set the trigger condition of USB trigger.<br />

Query the current trigger condition of USB trigger.<br />

Parameter<br />

Name Type Range Default<br />

Discrete {SOP|EOP|RC|SUSPend|EXITsuspend} SOP<br />

Explanation<br />

SOP: trigger at the sync bit at the start of the data packet (SOP).<br />

EOP: trigger at the end of the SEO portion of the EOP of the data packet.<br />

RC: trigger when SEO is greater than 10 ms.<br />

SUSPend: trigger when the idle time of the bus is greater than 3 ms.<br />

EXITsuspend: trigger when the bus exits from idle state for more than 10 ms.<br />

Return Format<br />

The query returns SOP, EOP, RC, SUSP or EXIT.<br />

Example<br />

:TRIGger:USB:WHEN RC<br />

The query returns RC.<br />

2-544 <strong>DS2000</strong> <strong>Programming</strong> <strong>Guide</strong><br />

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