I am developing a Vc++ application, in which I am using NI-PXI-5411 to generate square waveform of necessary frequency, amplitude, dutycycle & offset.
I use the "nifgen_createArbWaveform" function in my program. This function needs a parameter called "waveformDataArray".
The user manual says, itz range is between -1 & +1. Depending on the gain value, the output will vary.
But I am unable to generate waveform of my required amplitude, say for eg., 4 V (or) 2.8 V
I assumed that, the output voltage = wfmData * gain.
But when I measured the output using Scope, itz coming with different amplitudes.
I need to know, how to map (scale) the wfmDataArray points, according to my
required amplitude.
Can any one help me in this regard ?
Thanx in advance.
--sriram.
