Operator`s manual

151 Signametrics
DMMWaitForTrigger
SMU2060  SMU2064 
Description Put the DMM in a wait state which gets relesed on trigger event.
#include "SMU2060.h"
int DMMWaitForTrigger(int nDmm)
Remarks Setup the DMM for external hardware trigger (Trigger input DIN7 connector).
Following reception of this command the DMM enters a wait state. It waits until the
selected trigger edge, previously defined by DMMSetTrigPolarity() is detected. During
the wait, no other command except for DMMReady() or DMMDisarmTrigger() should
be issued. Prior to issuing this command the DMM may be set up for a composit
function such as Capacitance or any other measurement mode. Monitor readyness using
the DMMReady() command. While no trigger is received, it will return a FALSE (0). If
trigger event occured it will returne a TRUE (1). It is possible to terminate the wait for
trigger by issuing DMMDisarmTrigger() command. Also see DMMArmTrigger(),
DMMDisarmTrigger() and DMMSetTrigPolarity().
Positive Edge is imlied by a transition from 0V to a voltage over 3.5V at the Trigger
input line. Negative edge is implied by transition from a voltage over 3.5V to 0V.
Parameter
Type/Description
nDmm
int Identifies the DMM.
Return Value The return value is one of the following constants.
Value
Meaning
Negative Value
Error code
DMM_OKAY
Normal response
Postive Value
Warning code
Example int status = DMMWaitForTrigger(0);
DMMWidthStr
SMU2060  SMU2064 
Description Return the indicated pulse width in string format.
#include "SMU2060.h"
int DMMWidthStr(int nDmm, int iPol, LPSTR lpszNeg)
Remarks This function is the string equivalent of DMMReadWidth. The measurement results are
stored at the location pointed to by lpszWidth. See DMMReadWidth for more details.
Parameter
Type/Description
nDmm
int Identifies the DMM. DMMs are numbered starting with zero.