Aim MIL-STD-1553 - Page 109

MIL-STD-1553 Reference Manual
95
Chapter 3 – System Functions
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IRIG set mode
Value
Constant
Description
0
API_IRIG_SET
The IRIG time given in the previous
parameters will be set
1
API_CHANGE_TIMETAG_SOURCE
The IRIG time source given in the
parameter ‘irig_src’ will be set
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IRIG source
Value
Constant
Description
0
API_IRIG_INTERN
Switch IRIG source to internal IRIG time generator
On APM and APX boards “free wheeling” is
disabled with this setting
1
API_IRIG_EXTERN
Switch IRIG source to external IRIG time generator
On APM and APX boards, “free wheeling” is
enabled with this setting. That means, if no external
IRIG signal is detected, the IRIG source is switched
automatically to internal.
Note: This parameter is not possible on all AIM boards. Please
check chapter “Board functionality overview”. If your board
does not support INTERN/EXTERN switching it uses “Free
Wheeling Mode”
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Reserved (0)
Output
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Return Value
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All API functions return API_OK if no error occurred. If the return value is not equal
to API_OK the function ApiGetErrorDescription can be used to obtain an error
description.