How to Step Through Output Waveforms Using NI-FGEN Hardware: Signal Sources (AWG/FG/AO)>>Arbitrary Waveform and Function Generators
Problem: I am using NI-FGEN, and I want to output a sequential list of waveforms, having each waveform loop continuously until I send a software trigger. Is this possible, and if so, how can I accomplish this task? Solution: This can be accomplished using burst mode triggering. Each waveform you wish to output will correspond to a segment of an arbitrary sequence. The sequence can be configured for burst mode triggering. Once the generation begins, each individual segment will continuously loop, until you send a software trigger, which will cause the next segment to output continuously. Please refer to the shipping example niFgen_Arb_Sequence_Example VI. This example is also provided here as an attachment. An excerpt from the NI Signal Generators Help: Burst Trigger mode After a start trigger is received, the waveform described by the first stage generates until another trigger is received. At the next trigger, the buffer of the previous stage completes, and then the waveform described by the second stage generates. Once the staging list is exhausted, the waveform generation returns to the first stage and continues to repeat the cycle. In Frequency List mode, the duration instruction is ignored, and the trigger switches the frequency to the next frequency in the list. Related Links: NI Signal Generators Help (June 2008) Attachments:
Report Date: 07/07/2005 Last Updated: 11/14/2008 Document ID: 3N6FFJBC |
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