ADLINK PCI-9810 - Manual (Page 66)

54 Function Reference
_9812_AD_DMA_Status
Description
Since _9812_AD_DMA_Start is executed in the background, the
function _9812_AD_DMA_Status can be used to check its opera-
tion status.
Syntax
C/C++ (DOS)
int _9812_AD_DMA_Status(int card_number, int
*count, int *status, U32 *start_idx)
C/C++ (Windows 95)
int W_9812_AD_DMA_Status(int card_number, int
*count, int *status, U32 *start_idx)
Visual Basic (Windows 95)
W_9812_AD_DMA_Status (ByVal card_number As Long,
count As Long, status As Long, start_idx As
Long) As Long
Argument(s)
card_number Card number of the selected card.
count Current amount of DMA transferred data.
status DMA data transfer status. Valid values:
start_idx The index where the data starts from is in the user’s
buffer. For example, the sequence of read data is:
buff[start_idx], buff[start_idx+1], _,
buff[0], buff[1],_.,buff[start_idx-1].
Return Code(s)
PCICardNumErr
PCICardNotInit
NoError
0 DMA_done
1 DMA_continue
2 DMA_wait_trig
3 DMA_wait_delay