Aim AMC429, Справочное руководство

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Software Library Reference Manual for VME 429 105
Section 5 – Transmitter Functions
5.17 Api429CmdTxXferDataRead
P P r r o o t t o o t t y y p p e e : :
AiUInt8 Api429CmdTxXferDataRead( AiUInt8 b_Module, AiUInt8 b_Chn,
TY_API429_XFER_DATA_READ_INPUT *px_XferDataInput,
TY_API429_XFER_DATA *px_XferData );
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:
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API429_TX_LXFER_DATA_READ (0x83)
P P u u r r p p o o s s e e : :
This function is utilized to read the send label transfer data buffer on the selected
API429 transmitter channel.
Note: This command is not accessible if the transmitter mode 'b_Mode' in the
"Api429CmdTxIni command" is set to replay mode.
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A A i i U U I I n n t t 8 8 b b _ _ C C h h n n
Channel Number
Value Description
1..32 API429 transmitter channel number
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Pointer to XferDataInput structure (api429.h)
typedef struct
{
AiUInt32 ul_XferId;
AiUInt32 ul_BufStart;
AiUInt32 ul_BufSize;
AiUInt32 ul_Mode;
} TY_API429_XFER_DATA_READ_INPUT;
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Transfer Identifier
Value Description
0..1024 Transfer Identifier
A A i i U U I I n n t t 3 3 2 2 u u l l _ _ B B u u f f S S t t a a r r t t
Value Description
1..1023 Start Position for "Define Label Data"
A A i i U U I I n n t t 3 3 2 2 u u l l _ _ B B u u f f S S i i z z e e
Value Description
1..1023 Amount of label data structure elements to read from label transmit
buffer.
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Value Constant Description
0 - No action
1 API_TXRXBUF_TT_UPDATE_CLEAR Clear update flag in TT High word after
reading the data
Note: The amount of label data words to read from the transmit buffer of
the selected label transfer should correspond to 'buf_size' in the
"Api429CmdTxXferDef command".