Gx3722DigitizerSetTermination

Purpose

Sets the state of the digitizer channel’s termination resistors.

Syntax

Gx3722DigitizerSetTermination (nHandle, nLoad, pnStatus)

Parameters

Name
Type
Comments
nHandle
SHORT
Handle to a GX3722 board.
nLoad
SHORT
Specifies the channels where the 75Ω termination resistors are applied:
0.      GX3722_DIGITIZER_TERMINATION_NONE: No termination resistors.
1.      GX3722_DIGITIZER_TERMINATION_CH1: 75Ω across channel 1 only.
2.      GX3722_DIGITIZER_TERMINATION_CH2: 75Ω across channel 2 only.
3.    GX3722_DIGITIZER_TERMINATION_BOTH: 75Ω across both channels.
pnStatus
PSHORT
Returned status: 0 on success, negative number on failure.

Comments

The digitizer channels each have a 75Ω, 2-Watt resistor available to bridge the positive and negative input pins.  By default, this termination resistor is not connected.

Example

The following example connects the termination resistor across digitizer channel 1 and then makes a measurement:

 

DOUBLE dMeasurement;

 

Gx3722DigitizerSetFrequency (nHandle, GX3722_DIGITIZER_LOAD_CH1, &nStatus);

Gx3722DigitizerReadStatic (nHandle, GX3722_DIGITIZER_CH1, &dMeasurement, &nStatus);

 

See Also

Gx3722DigitizerSetTriggerMode, Gx3722DigitizerSetTriggerThreshold, Gx3722DigitizerGetTermination Gx3722DigitizerReadStatic, Gx3722DigitizerReadWaveform, GxFpgaGetErrorString