STROBE
The STROBE channel on the DDC connector is a dedicated channel for the STROBE signal. STROBE can be used only for acquisition sessions.
Designed for use in source-synchronous data transfer applications, the data channels are sampled precisely on a user-selected edge (programmable as rising or falling edge) of the STROBE signal, when configured as the Sample clock. The advantage of using STROBE as the Sample clock source signal for the acquisition operation is that the acquisition session Sample clock and the data channels now travel together through the same cable and system delays, maintaining time correlation between them.
Since NI digital waveform generator/analyzers only have one onboard clock, normally generation and acquisition sessions on the same NI device must use the same Sample clock rate. However, by choosing STROBE as the clock for acquisition operations, generation and acquisition operations can use two different timebases.
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