Agilent Technologies VXI E1439 - Manual (Page 175)

165
Agilent E1439 Programmer's Reference
Functions listed alphabetically
age1439_reference_clock
Selects the source of the reference clock. This description also includes the query function:
age1439_reference_clock_get
VXIplug&play Syntax
#include "age1439".h
ViStatus age1439_reference_clock(ViSession id, ViInt16 refClock);
ViStatus age1439_reference_clock_get(ViSession id, ViPInt16 refClockPtr);
Note
This command should be used only for specialized custom clock requirements. Most useful clock
setups can be supplied by
age1439_clock_setup .
Parameters
id is the VXI instrument session pointer returned by the age1439_init function.
refClock AGE1439_FRONT_PANEL_CLOCK specifies the front panel clock be used as the reference
clock. Use this in conjunction with age1439_front_panel_clock_input .
AGE1439_VXI_CLOCK specifies that the VXI (rear panel) clock be used as the reference clock.
Use this in conjunction with age1439_vxi_clock_output .
refClockPtr Returns a pointer to the current value of refClock.
Return Value
AGE1439_SUCCESS indicates that a function was successful.
Values other than AGE1439_SUCCESS indicate an error condition or other important status
condition. To determine the error message, pass the return value to
“age1439_error_message” on
page 102 .
See Also
“Default values” on page 201 , “age1439_init” on page 132 , “age1439_clock_setup” on page 78 ,
“age1439_front_panel_clock_input” on page 131 , “age1439_vxi_clock_output” on page 188 ,
“age1439_reference_prescaler” on page 166 , “Using clock and sync” in chapter 3