Aim AMC429, Справочное руководство

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38 Software Library Reference Manual for VME 429
Section 3 - System Functions
3.2 Api429CmdBiuIntrCheck
P P r r o o t t o o t t y y p p e e : :
AiUInt8 Api429CmdBiuIntrCheck( AiUInt8 b_Module, AiUInt8 b_DestBiu,
AiUInt32 *pl_Stat,
TY_API429_INTR_REGS *px_Regs );
D
D
r
r
i
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v
v
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r
r
C
C
o
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m
m
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:
:
API429_BIU_INTR_STATUS (0x40)
P P u u r r p p o o s s e e : :
This command is used to read the interrupt status of the API429 BIU. Up to 32
interrupt events can be stored for two consecutive calls of this function.
Note: 32 interrupt events as a maximum (API429_MAX_IR_EVENT_BUF) can be
buffered in the TY_API429_INTR_REGS data structure. Index 0 contains the
latest occurred interrupt event.
The number of valid buffered interrupt events is equal to the returned
'pl_stat' value. The number of interrupt events is cleared with every call of
this function. If 'pl_Stat' is > 32, the entries in the structure
TY_API429_INTR_REGS are undefined and set to 0xFFFFFFFF (overflow).
I I n n p p u u t t
A
A
i
i
U
U
I
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t
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8
8
b
b
_
_
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s
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B
B
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u
Discrete Channel ID
Value Description
0 Channel 1..16
1 Channel 17..32
O O u u t t p p u u t t
A
A
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U
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3
3
2
2
*
*
p
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_
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t
Interrupt counter, number of occurred BIU interrupt events between two
consecutive calls of this function.
Value Description
0 No interrupt event occurred
>0 Count of interrupt events (set to 0 after calling this function!)
T
T
Y
Y
_
_
A
A
P
P
I
I
4
4
2
2
9
9
_
_
I
I
N
N
T
T
R
R
_
_
R
R
E
E
G
G
S
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*
*
p
p
x
x
_
_
R
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g
g
s
s
Pointer to loglist structure of occurred BIU interrupt events (api429.h)
typedef struct
{
AiUInt32 l_Lla[ API429_MAX_IR_EVENT_BUF ];
AiUInt32 l_Llb[ API429_MAX_IR_EVENT_BUF ];
} TY_API429_INTR_REGS;