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76
Agilent E1439 Programmer's Reference
Functions listed alphabetically
age1439_clock_fs
Provides the module with the frequency of an external sample clock. This description also
includes the query:
age1439_clock_fs_get
VXI
plug&play
Syntax
#include "age1439".h
ViStatus age1439_clock_fs(ViSession
id
, ViReal64
fs
);
ViStatus age1439_clock_fs_get(ViSession
id
, ViPReal64
fsPtr
);
Description
This command is applicable only when an external sample clock is used. It is an order-dependent
command and must be set after selecting the external sample clock.
When using an external sample clock or when a module is a non-master in a multi-module group,
the frequency of the ADC clock is unknown by the module. It is the responsibility of the
programmer to provide the correct frequency so that library functions dependent on
fs
operate
properly. This value has no effect if the module is not set up to use the external sample clock.
Parameters
id
is the VXI instrument session pointer returned by the
age1439_init
function.
fs
provides the module with the frequency of an external sample clock (from 10,000,000 to
103,000,000) connected to the Ext Clk TTL connector.
AGE1439_FS_MIN
supplies the minimum external sample clock frequency.
AGE1439_FS_MAX
supplies the maximum external sample clock frequency.
fsPtr
points to the current value of the external sample clock frequency. If the Agilent E1439 is set to
the internal ADC clock, this query returns the value of that clock frequency. If the Agilent E1439
is set to the external clock, this query returns the last value entered via the
age1439_clock_fs
function.
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_ext_sample_sync” on page 104
,
“Using clock and sync” in chapter 3
Содержание E1439
Страница 6: ...6...
Страница 10: ...10 Contents...
Страница 11: ...1 1 Installing the Agilent E1439...
Страница 18: ...8 Installing the Agilent E1439 To transport the module...
Страница 19: ...2 2 Getting Started with the Agilent E1439...
Страница 28: ...18 Getting Started with the Agilent E1439 To use the example programs...
Страница 29: ...3 3 Using the Agilent E1439...
Страница 63: ...4 4 Agilent E1439 Programmer s Reference...
Страница 217: ...5 5 Module Description...
Страница 228: ...218 Module Description Block diagram and description...
Страница 229: ...6 6 Replacing Assemblies...
Страница 234: ...224 Replacing Assemblies Replaceable parts To remove the top cover...
Страница 235: ...225 Replacing Assemblies Replaceable parts To remove the M1 M2 assemblies...
Страница 236: ...226 Replacing Assemblies Replaceable parts...
Страница 238: ...228...
Страница 244: ...Index 234...