firstVal

firstVal(
o_waveform
)
=> n_value / nil

Description

Returns the first value from where the specified waveform starts on x axis.

Arguments

o_waveform

Waveform ID.

Value Returned

n_value

The first value from where the specified waveform starts from x axis

Examples

The following example returns the waveform ID of the eye diagram eye created from the jitter signal.

eye=eyeDiagram(v("jitter" ?result "tran-tran" ?resultsDir "/servers/user/design/prbs.raw") 200n 400u 2*40n   ?autoCenter t )

=> srrWave:0x336321f0

The following example returns the waveform ID of the curve representing the left-side bit error rate (BER) curve for the eye diagram eye.

waveform=eyeBERLeft(eye 200n 400u 80n 0.5 100)

=> srrWave:0x336322e0

The following example returns the x-axis value from where the waveform returned by the function eyeBERLeft starts.

firstVal(waveform)

=>1.660711e-08

Indicates that the waveform starts from x=16.60711ns.

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