Aim MIL-STD-1553 - Low Speed Functions; Apicmdcalcplcon

MIL-STD-1553 Reference Manual
152
Chapter 4 – Calibration Functions
4.1 Low Speed Functions
4.1.1 ApiCmdCalCplCon
Prototype:
AiInt16 ApiCmdCalCplCon ( AiUInt32 ul_ModuleHandle, AiUInt8 biu, AiUInt8 bus,
AiUInt8 cpl );
Driver Command:
API_CAL_CPL_CON (0xD3)
Purpose:
This function is used to select the physical MILbus coupling mode for the selected
MILBus channel on the AIM board.
Input
A
A
i
i
U
U
I
I
n
n
t
t
8
8
b
b
u
u
s
s
Value
Constant
Description
1
API_CAL_BUS_PRIMARY
Primary MILbus
2
API_CAL_BUS_SECONDARY
Secondary MILbus
A
A
i
i
U
U
I
I
n
n
t
t
8
8
c
c
p
p
l
l
Note: Not all coupling modes are available on all AIM devices. Please check the
capter “Board functionality overview” for details.
Note: On boards where API_CAL_CPL_ISOLATED is not available it is internally
wrapped to the mode API_CAL_CPL_WRAP_AROUND_LOOP.
Note: For boards where only external and wrap around is supported the external
coupling depends on the configuration of the hardware. Per default, this is
normally transformer coupled. On AMC1553-1/2 with HW-Version lower than
V03.00, this default coupling can be switched between “transformer coupled”
and “direct coupled” by a jumper on the board (please refer to the HW Manual).
For the other boards the default coupling is set by factory and must be
explicitly declared when ordered. If not declared, always transformer coupled is
the default coupling.