Digilent WaveForms Manuel d'utilisateur télécharger pdf (Page 40)

WaveForms™ SDK Reference Manual

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FDwfAnalogOutNodeFunctionGet(

HDWF hdwf, int idxChannel, AnalogOutNode node, FUNC *pfunc)

Parameters:

- hdwf – Open interface handle on a device.

- idxChannel – Channel index.

- node – Node index.

- ptrigsrc – Pointer to variable to receive the generator function option.

The function above is used to retrieve the current generator function option for the specified instrument channel.

FDwfAnalogOutNodeFrequencyInfo(HDWF hdwf, int idxChannel, AnalogOutNode node,

double *phzMin, double *phzMax)

Parameters:

- hdwf – Open interface handle on a device.

- idxChannel – Zero based channel index.

- node – Zero based node index.

- phzMin – Variable to receive the supported minimum frequency.

- phzMax – Variable to receive the supported maximum frequency.

The function above is used to return the supported frequency range for the instrument. The maximum value

shows the DAC frequency. The frequency of the generated waveform: repetition frequency for standard types and

custom data; DAC update for noise type; sample rate for play type.

FDwfAnalogOutNodeFrequencySet(

HDWF hdwf, int idxChannel, AnalogOutNode node, double hzFrequency)

Parameters:

- hdwf – Open interface handle on a device.

- idxChannel – Channel index.

- node – Node index.

- hzFrequency – Frequency value to set expressed in Hz.

The function above is used to set the frequency. With channel index -1, each enabled Analog Out channel

frequency will be configured to use the same, new option.

FDwfAnalogOutNodeFrequencyGet(

HDWF hdwf, int idxChannel, AnalogOutNode node, double *phzFrequency)

Parameters:

- hdwf – Open interface handle on a device.

- idxChannel – Channel index.

- node – Node index.

- hzFrequency – Pointer to variable to receive frequency value in Hz.

The function above is used to get the currently set frequency for the specified channel-node on the instrument.

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Digilent WaveForms Manuel d'utilisateur Page 40