NuDAQ ACL-8112 Series, User Manual

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C Language Library
7.2 _8112_Switch_Card_No
Description
This function is used on dual-cards system. After initialized two ACL-
8112 cards, this function is used to select which card is used currently.
Note: In this library, only two ACL-8112 can be initialized. The reason is
only two DMA channels are supported in the card.
Syntax
int _8112_Switch_Card_No(int card_number)
int _8112pg_Switch_Card_No(int card_number)
Argument:
card_number:
The card number to be initialized, only
two cards can be initialized, the card
number must be CARD_1 or CARD_2.
Return Code:
ERR_NoError
ERR_InvalidBoardNumber
Example:
#include “8112.h”
main()
{
_8112_Initial( CARD_1, A8112B_HG, 0x210 );
_8112_Initial( CARD_2, A8112B_DG, 0x220 );
/* Assume NoError when Initialize ACL-8112 */
_8112_Switch_Card_No( CARD_1 );
/* ..... You can perform certain functions
to Card_1 here */
_8112_Switch_Card_No( CARD_2 );
/* ..... You can perform certain functions
to Card_2 here */
}