u Example

#include

“9112.h”

 

main()

 

 

{

 

 

Int

baseAddr, irqNo;

 

_9112_Initial( CARD_1, &baseAddr, &irqNo);

 

/* Assume NoError when Initialize PCI-9112

*/

/* if the hardware setting for DA output range is 0~5V */

_9112_DA(CARD_1, DA_CH_1 , 0x800 );

printf( "The output voltage of CH1 is 2.5V \n" );

_9112_DA(CARD_1, DA_CH_2 , 0xFFF );

printf( "The output voltage of CH2 is 5V \n" );

}

A more complete program is specified in Appendix A Demo. Program 'DA_DEMO.C'

5.8_9112_AD_Set_Channel

uDescription

This function is used to set AD channel by means of writing data to the multiplexed scan channel register. There are 16 single-ended or 8 differential analog input channels in PCI-9112, so the channel number should be set between 0 to 15 for signled-end analog input mode, and 0 to 7 for differnetial analog input mode. The initial state is channel 0 which is a default setting by the PCI-9112 hardware configuration.

uSyntax

Visual C++ (Windows-95)

int W_9112_ AD_Set_Channel (int card_number, int ad_ch_no)

Visual Basic (Windows-95)

W_9112_AD_Set_Channel (ByVal card_number As Long, ByVal da_ch_no As Long) As Long

C/C++ ( DOS)

int _9112_AD_Set_Channel (int card_number, int ad_ch_no )

uArgument

card_number : the card number of PCI-9112

ad_ch_no : channel number to perform AD conversion

for single-ended mode : channel no. is from 0-15; for

differential mode : channel no. is from 0-7

C/C++ Library ∙ 45