Aim MIL-STD-1553 - Page 427

MIL-STD-1553 Reference Manual
413
Chapter 9 – Bus Monitor Functions
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Pointer to the actual buffer. This buffer is allocated with ApiCreateScopeBuffer and freed with
ApiFreeScopeBuffer.
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Size of the buffer in bytes. On APE cards, this value has to be 64K in single-channel mode and
32K in dual-channel mode. On AyX cards, this value has to be 6K in single shot mode and 96K in
continuous mode.
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Specific flags for the buffer.
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Size of the available MIL-Scope data in bytes. Only valid if SCOPE_BUFFER_FLAG_FILLED flag
is set for the buffer.
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ID of the trigger sample in the buffer starting from 0. This value is only valid if
SCOPE_BUFFER_FLAG_TRIGGER flag is set for the buffer.
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Handler function, which is called when the buffer is full. Parameters are the module handle of the
board and a pointer to the buffer that is ready.
Typedef void (_stdcall *TY_API_SCOPE_BUFFER_HANDLER)(
AiUInt32 ulModuleHandle,
TY_API_SCOPE_BUFFER* pBuffer );
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Pointer to user definable data which is attached to the buffer. This data can be accessed in the
scope buffer handler when buffer is completed or canceled.
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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..
Flag
Description
SCOPE_BUFFER_FLAG_FILLED
Buffer is filled with data
SCOPE_BUFFER_FLAG_CANCELED
Receiving of Scope Data for this
buffer was canceled.
SCOPE_BUFFER_FLAG_TRIGGER
The buffer contains the trigger sample