Intel cPCI-7200 User Manual

Page 59

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C/C++ Libraries

51

5.19 _7200_DI_DMA_Stop

@ Description

This function is used to stop the DMA data transferring. After executing this
function, the _7200_DI_DMA_Start function is stopped. The function returns
the number of the data which has been transferred, no matter if the digital
input DMA data transfer is stopped by this function or by the DMA terminal
count, ISR.

@ Syntax

Visual C++ (Windows 95)

int W_7200_DI_DMA_Stop (U32 * count)

Visual Basic (Windows 95)

W_7200_DI_DMA_Stop ( count As Long ) As Long

C/C++ (DOS)

int _7200_DI_DMA_Stop (U32 *count)

@ Argument

count:

the number of DI data which has been transferred.

@ Return Code

ERR_NoError
ERR_BoardNoInit

5.20 _7200_DblBufferMode

@ Description

This function is used to enable or disable double buffer mode for DMA DI
operation.

@ Syntax

Visual C++ (Windows 95)

int W_7200_DblBufferMode (Boolean db_flag)

Visual Basic (Windows 95)

W_7200_DblBufferMode (ByVal db_flag As Byte) As Long

C/C++ (DOS)

int _7200_CheckHalfReady (Boolean db_flag)

@ Argument

db_flag:

1: double buffer mode enabled

0: double buffer mode disabled

@ Return Code

ERR_NoError

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