Aim AMC429, Справочное руководство

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154 Software Library Reference Manual for VME 429
Section 7 – Receiver Monitor Functions
7.7 Api429CmdRmReadRecData
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AiUInt8 Api429CmdRmReadRecData( AiUInt8 b_Module, AiUInt8 b_Chn,
TY_API429_RM_REC *px_RecStatus,
void *p_Buffer, AiUInt32 *pl_BytesRead );
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Indirect calls: API429_RM_REC_STATUS_READ (0xBE)
API429_RM_COPY_REC_DATA (0xBF)
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This function allows an easy implementation of an ARINC Recording task. The
recording status information is read, if the transmitter is operating in the Continuous
Capture / Recording mode. The initial value of the parameter
‘
px_RecStatus.hfi_cnt ’ indicates the amount of half buffer full interrupts required
for storing the requested recording file size (see function Api429CmdRmCapDef) .
If available, the received monitor data (recording data) will be copied from the
Receiver Monitor Buffer to a buffer in the Shared Memory RAM area of the API429
board. Finally the data is provided to the user application with the parameter
‘
p_Buf ’.
Note: To record receive data, it is absolutely necessary that the Half Buffer Full
Interrupt is enabled! (see function Api429CmdRmCapDef)
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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 receiver channel number
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Pointer to Recording structure (api429.h)
typedef struct
{
AiUInt8 status;
AiUInt8 padding1;
AiUInt16 padding2;
AiUInt32 hfi_cnt;
AiUInt32 saddr;
AiUInt32 size;
} TY_API429_RM_REC;
' ' A A i i U U I I n n t t 8 8 s s t t a a t t u u s s ' '
Receiver Monitor Status
Value Constant Description
1 API429_HALT Receiver Monitor halted
2 API429_BUSY Receiver Monitor busy