Aim MIL-STD-1553 - Page 413

MIL-STD-1553 Reference Manual
399
Chapter 9 – Bus Monitor Functions
A
A
i
i
U
U
I
I
n
n
t
t
3
3
2
2
p
p
x
x
_
_
S
S
c
c
o
o
p
p
e
e
T
T
r
r
g
g
-
-
>
>
u
u
l
l
_
_
T
T
r
r
g
g
S
S
r
r
c
c
Trigger source
Primary or secondary bus on which the trigger is activated
Value
Constant
Description
0
API_SCOPE_SRC_PRIMARY
Primary Bus
1
API_SCOPE_SRC_SECONDARY
Secondary Bus
A
A
i
i
U
U
I
I
n
n
t
t
3
3
2
2
p
p
x
x
_
_
S
S
c
c
o
o
p
p
e
e
T
T
r
r
g
g
-
-
>
>
u
u
l
l
_
_
T
T
r
r
g
g
V
V
a
a
l
l
u
u
e
e
Trigger value, that is used to compare against. The voltage range that this value is
representing is dependent on the coupling that was set with the function
ApiCmdScopeSetup().
Coupling
Value
Description
Extern 30V
0..1023
Representing the voltage range of -15V..+15V (steps of 29.3mV)
Extern 3V
0..1023
Representing the voltage range of -1.5V..+1.5V (steps of 2.9mV)
Stub 30V
0..1023
Representing the voltage range of -15V..+15V (steps of 29.3mV)
Stub 3V
0..1023
Representing the voltage range of -1.5V..+1.5V (steps of 2.9mV)
A
A
i
i
U
U
I
I
n
n
t
t
3
3
2
2
p
p
x
x
_
_
S
S
c
c
o
o
p
p
e
e
T
T
r
r
g
g
-
-
>
>
u
u
l
l
_
_
T
T
r
r
g
g
N
N
b
b
S
S
a
a
m
m
p
p
l
l
e
e
s
s
Number of samples
‘ul_TrgMode’
Value
Description
0, 1
0
Reserved
4, 5
1..255
Number of samples
A
A
i
i
U
U
I
I
n
n
t
t
3
3
2
2
p
p
x
x
_
_
S
S
c
c
o
o
p
p
e
e
T
T
r
r
g
g
-
-
>
>
u
u
l
l
_
_
F
F
l
l
a
a
g
g
s
s
Trigger flags
Bit 31
Bit 30
Bit 29
Bit 28
Bit 27
Bit 26
Bit 25
Bit 24
reserved (0)
Bit 23
Bit 22
Bit 21
Bit 20
Bit 19
Bit 18
Bit 17
Bit 16
reserved (0)
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
reserved (0)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
reserved (0)
DIS_FDBT
D
D
I
I
S
S
_
_
F
F
D
D
B
B
T
T
0: The Trigger is enabled immediately
1 : The Trigger is enabled after the DMA Buffer chain is filled. This mode will always
produce valid trace before trigger data. In this mode trigger conditions might be lost.
A
A
i
i
U
U
I
I
n
n
t
t
3
3
2
2
p
p
x
x
_
_
S
S
c
c
o
o
p
p
e
e
T
T
r
r
g
g
-
-
>
>
u
u
l
l
_
_
T
T
r
r
g
g
D
D
e
e
l
l
a
a
y
y
Trigger Delay Time
This value defines the delay time after a trigger has occurred until the capturing is started.
The time resolution is calculated from the sampling rate, which is setup with parameter
px_ScopeSetup->ul_SamplingRate in the function ApiCmdScopeSetup().
Value
Description
0..262143
Delay Time in steps of 1µs
A
A
i
i
U
U
I
I
n
n
t
t
3
3
2
2
p
p
x
x
_
_
S
S
c
c
o
o
p
p
e
e
T
T
r
r
g
g
-
-
>
>
u
u
l
l
_
_
T
T
r
r
g
g
T
T
b
b
t
t
Trace Before Trigger
This value defines the time the data is captured before a trigger occurres.
Ul_TrgDelay
Value
Description