Operator`s manual

127 Signametrics
Value Meaning
DMM_OKAY
Operation successfully terminated
Negative Value
Error code.
Example double Buffer[120];
DMMSetBuffTrigRead(0, 4, 50, 0); // Negative edge, 4
//setteling readings, and 50 samples/trigger
while( ! DMMReady(0) ); // wait for completion
for(i=0; i < 50 ; i++) // read buffer
j = DMMReadBuffer(0, &Buffer[i]);
DMMSetCapsAveSamp
SMU2060  SMU2064 
Description Tunes the capacitance measurement function parameters for higher measurement speed.
#include "SMU2060.h"
Int DMMSetCapsAveSamp(int nDmm, int iAverage, int iSamples)
Remarks This function should be used carefully since it modifies the capacitance function basic
measurement parameters; the averages value, iAverage, and the number of points
sampled, iSamples. This function is provided only for cases where it is necessary to
improve measurement speed. When using this function keep in mind that the accuracy
specification provided for capacitance is not guaranteed. Also, modifying these values
could have profound efect on the operation of the function. Any time a capacitance range
is change, these values are set to the default values. For instance, values of 1 and 3 for
iAverage, and iSamples will reduce measurement time on the 12nF range from 0.8s to
about 50ms.
Parameter
Type/Description
nDmm
int Identifies the DMM. DMMs are numbered starting with zero.
iAverage
int The average value, must be set between 1 and 100.
iSamples
int The number of samples must be set to at least 3.
Return Value The return value is one of the following constants.
Value
Meaning
DMM_OKAY
Valid return.
Negative Value
Error code
Example int status = DMMSetCapsAveSamp(0,1,3);