uSyntax

Visual C++ (Windows-95)

int W_9112_AD_Timer (int card_number, unsigned int c1, unsigned int c2)

Visual Basic (Windows-95)

W_9112_Timer (ByVal card_number As Long, c1 As Long, c2 As Long) As Long

C/C++ ( DOS)

int _9112_AD_Timer(int card_number, unsigned int c1 , unsigned int c2 )

uArgument

card_number : the card number of PCI-9112

c1 : frequency divider of timer #1

c2 : frequency divider of timer #2

Note : the A/D sampling rate is equal to :

2MHz / (c1 * c2),

when c1 = 0 or c2 = 0, the pacer trigger will be stopped.

uReturn Code

ERR_NoError

ERR_BoardNoInit

ERR_InvalidTimerValue

uExample

main()

 

{

 

int

errCode;

Int

baseAddr, irqNo;

_9112_Initial( CARD_1, &baseAddr, &irqNo);

/* Assume NoError when Initialize PCI-9112 */

_9112_AD_Timer(CARD_1,10 , 10 );

/* set AD sampling rate to 2MHz/(10*10) */

..

_9112_AD_Timer(CARD_1, 0 , 0 ); /* stop the pacer trigger */

}

62 ∙ C/C++ Library