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Instrument Settings Pane

Digital Pattern Help

Edition Date: May 2017

Part Number: 375145c

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Select Instruments»History RAM and Signal Settings to launch the Instrument Settings pane.

History RAM Setup

Configure the following options for bursting a pattern and logging History RAM results to display. Refer to the specifications document for the digital pattern instrument for more information about the number of cycles supported in History RAM.

  • Trigger on — Specifies the conditions on which to begin logging results to History RAM.
    • Failure — Begins logging History RAM results on the first cycle that fails. This is the default value.
      Note Note   The editor logs failures on a per-site and per-instrument basis, returning only partial results for a site that spans multiple digital pattern instruments where not all instruments for a site had History RAM results logged for the same cycles. When an instrument does not include all pins of a site and no History RAM results exist for those pins and cycles on another digital pattern instrument in the active pin and channel map, those pin state data cells are shown as blank in the History RAM View.
    • Cycle — Begins logging History RAM results starting with the cycle you specify.
      • Cycle — Specifies the cycle number on which to trigger.
    • Global Label + Vector Offset — Specifies to begin logging History RAM results at a particular global label with a vector offset from the label that you specify.
      • Label or Pattern — Specifies the global label at which to start logging History RAM results. A global label is a label that a pattern exports. All pattern names are also global labels for the first vector of the pattern.
      • Vector Offset — Specifies the number of vectors to offset from the label or pattern before logging History RAM results.
    • Global Label + Cycle Offset — Specifies to begin logging History RAM results at a particular global label with a cycle offset you specify.
      • Label or Pattern — Specifies the global label at which to start logging History RAM results. A global label is a label that a pattern exports. All pattern names are also global labels for the first vector of the pattern.
      • Cycle Offset — Specifies the number of cycles to offset from the label or pattern before logging History RAM results.
  • Pretrigger Cycles — Specifies the number of cycles to log before the Trigger on event occurs. The default value is 0.
  • Stop — Specifies the condition on which to stop logging results to History RAM.
    • When Full — Stops logging History RAM results when the History RAM is full and discards any additional results after the History RAM is full. This is the default value.
    • After X Cycles — Stops logging History RAM results when the number of cycles you specify have been logged.
      • X — Specifies the number of cycles to log.
  • Cycles to Capture — Specifies the cycles to log when the Trigger on event occurs.
    • Failures Only — Logs only cycles with a failure. This is the default value.
    • All — Logs all cycles.

Export Pattern Opcode Event Signals

You can route up to four events to any of the eight PXI chassis backplane trigger lines per digital pattern instrument based on the signal opcodes you use in a pattern.

Note Note   PXI trigger lines are system-wide resources that other instruments in the test system can use or reserve. When you export pattern opcode events to these output terminals, ensure that another instrument is not using or has not reserved the PXI trigger line.

 

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