ICP DAS USA PCI-D64HU, User Manual, Page: 106 / 128

5.7 d64h_do_async_dblbuf_transfer
VC6
short d64h_do_async_dblbuf_transfer (BYTE bCardID, void *pBuffer)
VB6
d64h_do_async_dblbuf_transfer (ByVal bCardID As Byte, pBuffer As Any) As Integer
Description:
This function updates the DO output data to the idle half-buffer.
Parameters:
bCardID: The specific Card ID that is configured with the on-board Dip-Switch.
pBuffer: The pointer to the user-provided buffer that contains the DO output data.
Return Code:
SUCCESS_NO_ERROR: The function returns successfully.
ERROR_INVALID_CARD_ID: There is no active PCI-D64HU card configured with bCardID, or the
given Card ID is invalid (for instance, Card ID is assigned to 254).
ERROR_INVALID_MAPPED_ADDRESS: Indicates the mapped address is invalid.
ERROR_INVILID_DOUBLE_BUFFER_MODE: Indicates the acquisition operation is NOT configured
as double-buffer mode.
ERROR_ACCESS_VIOLATION_DATA_COPY: Some system exception occurs while copying
memory, please check the pointer-type parameter you assign to this function.
PCI-D64HU Function Reference Version 34