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C/C++ Library
u Syntax
Visual C++ (Windows-95)
int W_9112_AD_Set_Mode (int card_number, int ad_mode)
Visual Basic (Windows-95)
W_9112_AD_Set_Mode (ByVal card_number As Long, ByVal ad_mode As
Long) As Long
C/C++ ( DOS)
int _9112_AD_Set_Mode (int card_number, int ad_mode )
u Argument
card_number : the card number of PCI-9112
ad_mode : AD trigger and data transfer mode
( please refer to above table.)
u Return Code
ERR_NoError
ERR_BoardNoInit
ERR_InvalidMode
u Example
#include “9112.h”
main()
{
Int baseAddr, irqNo;
_9112_Initial( CARD_1, &baseAddr, &irqNo);
/* Assume NoError when Initialize PCI-9112 */
_9112_AD_Set_Range(CARD_1, AD_B_5_V );
printf( "The A/D analog input range is +/- 5V \n" );
_9112_AD_Set_Mode(CARD_1, AD_MODE_4 );
printf( "Now, The Internal Timer Pacer trigger is set \n" );
/* All A/D conversion will be trigger by internal timer pacer,
and the converted data should be transfered in the interrupt
service routine. ( ISR). */
}
5.11 _9112_AD_Set_Autoscan
u Description
This function is used to set automatic hardware channel scan to be
enable or disable. If the PCI-9112 is set as enable mode, then the A/D
channel can be converted automatically, that is, the hardware will
automatically decrement until channel 0. Then, it will go back to channel
which is set by _9112_AD_Set_Channle and wrap back to zero again.
For example, the channel is set as 4, the A/D conversion sequence will be