Signametrics Corporation SMU2060, Руководство оператора

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Signametrics
150
Parameter Type/Description
nDmm
int Identifies the DMM. DMMs are numbered starting with zero.
iSamples
int The number of samples to take following a Trigger events.
Allowd range is 1 to 250.
iEvents
int The number of Trigger events to expect. Range 1 to 30,000.
iEdge
Int The edge polarity of the trigger signal. 1 for Positive, or leading
edge, and 0 for negative or trailing edge trigger.
Return Value
The return value is one of the following constants.
Value Meaning
DMM_OKAY Operation successfully terminated
Negative Value
Error code.
Example
double Reading[150];
DMMTrigBurst(0, 10, 100, 0); // Negative edge, 10 samples
//per trigger event, total of 100 events
for(i=0; i < 150 ; i++)
// read buffer
while( ! DMMReadMeasurement(0 , Reading[i]) );
DMMUnlockCounter
SMU2060  SMU2064 
Description
Return the indicated pulse width in string format.
#include "SMU2060.h"
int DMMUnlockCounter ( int
nDm
)
Remarks
This function unlocks the freqency counter range, allowing it to autorange. This is the
default mode of operation for the frequency coutner. User this function to release the
range lock which was caused by using the
DMMSetCounterRange function.
Parameter Type/Description
nDmm
int Identifies the DMM. DMMs are numbered starting with zero.
Return Value
The return value is one of the following constants.
Value Meaning
Negative Value Error code
Positive Value < 100 The length of the returned string
Postive Value ≥ 100 Warning code
Example
int status = DMMUnlockCounter(0);