DBS9900 User’s Manual
5-48
DBS9900 Driver Software
82-28993 Revision 01
5.6.13
Clock Control Query
an9900_clockControl_Q
This function returns clock routing information from the daughter boards.
Function Prototype
ViStatus
an9900_clockControl_Q
( ViSession
instrumentHandle
,
ViUInt16
*
EXTCLKAenable
,
ViUInt16
*
EXTCLKBenable
,
ViUInt16
*
CHACLKSelect
,
ViUInt16
*
CHBCLKSelect
);
an9900_clockControl_Q
Parameters
Variable Type Description
<INPUT>
instrumentHandle
ViSession
This control accepts the Instrument Handle returned by the Initialize function to
select the desired instrument driver session.
<OUTPUT>
*EXTCLKAenable ViUInt16
(passed by
reference)
Signal present on the input of Clock A enable.
*EXTCLKBenable ViUInt16
(passed by
reference)
Signal present on the input of Clock B enable.
*CHACLKSelect ViUInt16
(passed by
reference)
Clock routing to daughter board A.
*CHBCLKSelect ViUInt16
(passed by
reference)
Clock routing to daughter board B.
<RETURN>
= 0
> 0
< 0
“VI_SUCCESS”
Warning: The function completed, but an exception condition occurred which
may require attention.
Error: The function did not complete successfully.
NOTE: Use the an902_error_message() function to get a textual description of
errors and warnings.
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