HP NuDAQ I-9111DG/HR manual ++ Library ∙61

Models: NuDAQ I-9111DG/HR

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function _9111_AD_FFHF_INT_Status(). While all the specified blocks of data are acquired, the interrupt status will be changed to “AD_FFHF_BLOCK_FULL”. The function can perform on single A/D channel (autoscan is disable) or multiple A/D channels (autoscan is enable) with fixed analog input range.

@ Syntax

C/C++ (DOS)

U16 _9111_AD_FFHF_INT_Start (U16 cardNo, U16 auto_scan, U16 ad_ch_no, U16 ad_gain, U16 blockNo, I16 far *ad_buffer, U16 c1, U16 c2)

C/C++ (Windows 95)

U16 W_9111_AD_FFHF_INT_Start (U16 cardNo, U16 auto_scan, U16 ad_ch_no, U16 ad_gain, U16 blockNo, I16 far *ad_buffer, U16 c1, U16 c2)

Visual Basic (Windows 95)

W_9111_AD_FFHF_INT_Start (ByVal cardNo As Integer, ByVal auto_scan As Integer, ByVal ad_ch_no As Integer, ByVal ad_gain As Integer, ByVal blockNo As Integer, ad_buffer As Integer, ByVal c1 As Integer, ByVal c2 As Integer) As Integer

@ Argument

cardNo: the card number of PCI-9111 card initialized.

auto_scan: 0: autoscan is disabled.

1:autoscan is enabled.

ad_ch_no: A/D channel number.

If the auto_scan is set as enable, the selection sequence of A/D channel is: 0, 1, 2, 3, ... , [ad_ch_no], 0, 1, 2, 3, ... , [ad_ch_no], ... .

If the auto_scan is set as disable, only the data input from [ad_ch_no] is converted.

ad_gain: A/D analog input range, the possible values are:

AD_B_10_V, AD_B_5_V, AD_B_2_5_V, AD_B_1_25_V, AD_B_0_625_V,

blockNo: the number of blocks for performing A/D convertion, one block of A/D conversion is 512.

ad_buffer: the start address of the memory buffer to store the AD data, the buffer size must large than the number of AD conversion (blockNo*512).

c1: the frequency devider of Timer#1.

c2: the frequency devider of Timer#2.

@ Return Code

ERR_InvalidADChannel ERR_AD_InvalidGain

ERR_InvalidTimerValue ERR_NoError

C/C++ Library 61

Page 71
Image 71
HP NuDAQ I-9111DG/HR manual ++ Library ∙61