Adlink ACL-8112 Series Manual do Utilizador descarregar pdf (Página 64)

56 • C Language Library

7.2 _8112_Switch_Card_No

Description

This function is used on a system that has two ACL-8112 card inserted.

After initializing the two ACL-8112 cards, this function is called upon to

select the default card.

Note: This library only has support for two ACL-8112 because only two DMA

channels are supported by 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*/

}

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Adlink ACL-8112 Series Manual do Utilizador Página 64