IviDigitizer Configure TV Trigger Source [TVT]
IviDigitizerTVTrigger Capability Group
Configures the digitizer for TV triggering. It configures the TV signal format, the event, and the signal polarity.
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Note This VI affects instrument behavior only if the trigger type is TV Trigger. Set the trigger type and trigger coupling before calling this VI. |
![IviDigitizer Configure TV Trigger Source [TVT].vi](ividigitizer_configure_tv_trigger_source_[tvt]c.gif)
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Trigger Event (Field1) Specifies the TV trigger event. This value sets the IviDigitizer TV Trigger Event property.
Valid Values: - IVIDIGITIZER_VAL_TV_EVENT_FIELD1 (1) Sets the digitizer to trigger on field 1 of the video signal. - IVIDIGITIZER_VAL_TV_EVENT_FIELD2 (2) Sets the digitizer to trigger on field 2 of the video signal. - IVIDIGITIZER_VAL_TV_EVENT_ANY_FIELD (3) Sets the digitizer to trigger on any field. - IVIDIGITIZER_VAL_TV_EVENT_ANY_LINE (4) Sets the digitizer to trigger on any line. - IVIDIGITIZER_VAL_TV_EVENT_LINE_NUMBER (5) Sets the digitizer to trigger on a specific line number you specify with the TV Trigger Line Number property. Default Value: IVIDIGITIZER_VAL_TV_EVENT_FIELD1 (1) |
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instrument handle The instrument handle that you obtain from the IviDigitizer Initialize VI or IviDigitizer Initialize With Options VI. The handle identifies a particular instrument session.
Default Value: None |
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Trigger Source ("") Specifies the trigger source. This value sets the trigger source property.
Default Value: "" Note: You can specify the trace name as a string variable or as a literal enclosed in double quotes. |
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Signal Format (NTSC) Specifies the TV trigger signal format. This value sets the IviDigitizer TV Trigger Signal Format property.
Valid Values: - IVIDIGITIZER_VAL_NTSC (1) Configures the digitizer to trigger on the NTSC signal format. - IVIDIGITIZER_VAL_PAL (2) Configures the digitizer to trigger on the PAL signal format - IVIDIGITIZER_VAL_SECAM (3) Configures the digitizer to trigger on the SECAM signal format Default Value: IVIDIGITIZER_VAL_NTSC (1) |
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error in (no error) The error in cluster can accept error information wired from VIs previously called. Use this information to decide if any functionality should be bypassed in the event of errors from other VIs.
The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed. |
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TV Polarity (Positive) Specifies the polarity of the TV trigger signal. This value sets the IviDigitizer TV Trigger Polarity property.
Valid Values: - IVIDIGITIZER_VAL_TV_POSITIVE (1) The digitizer triggers on a positive glitch. - IVIDIGITIZER_VAL_TV_NEGATIVE (2) The digitizer triggers on a negative glitch. Default Value: IVIDIGITIZER_VAL_TV_POSITIVE (1) |
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instrument handle out The instrument handle that you obtain from the IviDigitizer Initialize VI or IviDigitizer Initialize With Options VI. The handle identifies a particular instrument session.
Default Value: None |
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error out The error out cluster passes error or warning information out of a VI to be used by other VIs.
The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed. |