Adlink ACL-8216 Manual de usuario descargar pdf (Pagina 60)

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C/C++ Library

5.13 _8216_AD_Acquire

@ Description

This function will set the A/D mode as AD_MODE_1 (Software trigger,

Software polling), generate a software trigger to begin A/D conversion,

then poll the A/D conversion data. It reads the 16-bit A/D data until the

data is ready ('data ready' bit becomes low).

@ Syntax

int _8216_AD_Aquire( int *ad_data )

@ Argument

ad_data:

16-bit A/D converted value, the value

should within -32768 to 32767

@ Return Code

ERR_NoError

ERR_BoardNoInit

ERR_AD_AquireTimeOut

@ Example

#include “aclerr.h”

#include "8216.h"

main()

{

intad_data;

intErrCode;

_8216_Initial( CARD_1, 0x220 );

/* Assume NoError when Initialize ACL-8216 */

/* Set to software trigger at first*/

/* then trigger the AD */

/* wait for AD data ready then read it */

ErrCode = _8216_AD_Aquire( &ad_data );

if( ErrCode == ERR_NoError )

printf( "The AD value is %d.\n", ad_data );

else

printf( "AD conversion error happen\n" );

}

Also see demo program ‘AD_DEMO.C’.

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Adlink ACL-8216 Manual de usuario Pagina 60