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Reference Manual AFDX / ARINC 664 Application Interface Library
73
Section 4 – Function Reference: Transmitter Functions
Value:
Description:
FDX_DIS Disable
Trigger
Strobe
FDX_ENA
Assert external Trigger Strobe on transmission of this
frame
A
A
i
i
U
U
I
I
n
n
t
t
8
8
u
u
c
c
_
_
P
P
r
r
e
e
a
a
m
m
b
b
l
l
e
e
C
C
o
o
u
u
n
n
t
t
This value defines the number of preamble Bytes sent for this frame
Value:
Description:
FDX_TX_FRAME_PRE_DEF
Send default preamble count of 7 Bytes
All other values from n=1..15
Send n preamble Bytes
A
A
i
i
U
U
I
I
n
n
t
t
3
3
2
2
u
u
l
l
_
_
S
S
k
k
e
e
w
w
This parameter defines the transmission skew between the redundant frames on the
AFDX- ports. The skew can be programmed with a resolution of 1us. Range is
0...65535. This parameter is only used if uc_NetSelect is FDX_TX_FRAME_DLY_A or
FDX_TX_FRAME_DLY_B.
Note:
This function is only provided in redundant port operation mode.
Note:
If the ul_Skew parameter is set and one redundant frame is delayed this
time may be added to ul_InterFrameGap and may exceed maximum value
of ul_InterFrameGap in the receiver.This means it can result in a higher
Interframe Gap Time because the IFG counter for transmit is sterted
synchroniously for both networks after both redundant frames are sent..
A
A
i
i
U
U
I
I
n
n
t
t
8
8
u
u
c
c
_
_
N
N
e
e
t
t
S
S
e
e
l
l
e
e
c
c
t
t
This parameter defines the physical Interface_ID of the MAC, which shall send it's
current frame delayed (with
ul_Skew
µs) to the alternate port.
Value:
Description:
FDX_TX_FRAME_DLY_A
Packet on Network A is delayed by the Skew value,
related to Network B
FDX_TX_FRAME_DLY_B
Packet on Network B is delayed by the Skew value,
related to Network A
FDX_TX_FRAME_BOTH
Packet transmitted on both Networks (Skew=0)
FDX_TX_FRAME_ONLY_A
Packet only transmitted on Network A
FDX_TX_FRAME_ONLY_B
Packet only transmitted on Network B
Note:
This function is only provided in redundant port operation mode.
Summary of Contents for AFDX / ARINC 664
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