ADLINK PCI-9810 - Manual (Page 63)

Function Reference 51
_9812_AD_DMA_Start
Description
Starts an operation of A/D conversion N times with DMA data
transfer. It will take place in the background, which will not stop
until the Nth conversion has been completed or until your program
executes _9182_AD_DMA_Stop to stop the operation. After exe-
cuting this function, check the status of the operation by using the
_9812_AD_DMA_Status function.
Syntax
C/C++ (DOS)
int _9812_AD_DMA_Start (int card_number, int
ch_cnt, U32 *buff, U32 count)
C/C++ (Windows 95)
int W_9812_AD_DMA_Start(int card_number, int
ch_cnt, HANDLE memID, U32 count)
Visual Basic (Windows 95)
W_9812_AD_DMA_Start (ByVal card_number As Long,
ByVal ch_cnt As Long, ByVal handle As Long,
ByVal count As Long) As Long
Argument(s)
card_number Card number of the selected card.
ch_cnt Number of A/D channel enabled. Valid values:
0 No channel is enabled.
1 Only channel 0 is enabled.
2 Channel 0 and 1 are enabled, and the sequence of
channel scan is 0, 1, 0, 1, …
4 All channels are enabled and the sequence of channel
scan is 0, 1, 2, 3, 0, 1, 2, 3, …