Measurement Computing ADLIB WIN - Manual (Page 75)

Chapter 20 Triggering Modes 19-7
19.6 AL_SetTriggerOutput
Prototype C\C++
ERRNUM AL_SetTriggerOutput(LHLD lhld, LPSTR lpstrMode);
Visual Basic for Windows
Function AL_SetTriggerOutput(ByVal lhld As Long,
ByVal lpstrMode As String) As Long
LHLD lhld handle of the LDSD
LPSTR lpstrMode address of the TriggerOutput mode string
The AL_SetTriggerOutput function sets the hardware TriggerOutput operation mode of the LDSD. For
the PCI 5500 and Pci55xx Series the AtoD device can be configured to output a signal when it has been
triggered. This allows multiple boards to be connected together which are triggered simultaneously form a
single trigger source that is daisy chained to additional boards.
For the Pci55xx Series the signal ADTGOUT is available to output it’s trigger source. Each time the ADC
is triggered from any of the available triggering sources the ADTGOUT signal pulses high for a period of
1 microsecond. This output can be used to synchronize the triggering of multiple A/D converters on
different PCI cards.
Parameter Description
lhld Identifies the instance of the logical device subsystem.
lpstrMode
Points to the desired TriggerOutput mode string. The available string settings
are
device independent and are verified by ADLIB against the available trigger
mode options specified in the device's capabilities file.
Returns:
On success ERRNUM is set to 1, otherwise ERRNUM contains the last error code that occurred during the
call.
Related Functions:
AL_SetTriggerMode
AL_SetTriggerSource
AL_SetTrigSourceSignal
AL_SetPostSampleCount
AL_GetTriggerStruct
AL_GetTriggerOutput
Supported Logical Device Subsystems:
Pci55xx Series: ADC0, Options:
ENABLED, DISABLED