Adlink ACL-8112 Series Manual do Utilizador descarregar pdf (Página 74)

66 • C Language Library

Syntax

int _8112_AD_Set_Range( int ad_range )

int _8112pg_AD_Set_Gain( int ad_range )

Argument:

int ad_range: the programmable range of A/D

conversion, pleas refer to above tables for the

possible values .

Return Code:

ERR_NoError

ERR_BoardNoInit

ERR_AD_InvalidRange

Example:

#include “8112.h”

main()

{

_8112_Initial( CARD_1, A8112B_HG, 0x220 );

/* Assume NoError when Initialize ACL-8112 */

_8112_AD_Input_Mode( DIFFERENTIAL) ;

/* set analog input mode as “differential” mode */

_8112_AD_Set_Range( AD_B_5_V );

printf( "The A/D analog input range is +/- 5V \n" );

for( j = 0; j < 7; j++)

{

_8112_AD_Set_Channel( j );

printf( "AD channel j is now selected.\n" );

/* all analog input operations are based on

analog differential mode,

input range is from -5V to +5V */

}

...

}

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Adlink ACL-8112 Series Manual do Utilizador Página 74