s1l5.c

DSP系统入门与实践源代码

/*********************************************************************
 * S1L5.c - (Section 1, Lesson 5) RECEIVING AN ARRAY OF INTEGERS FROM
 *                                THE HOST
 *          This is the RTDX Target Code for Section 1, Lesson 5
 *
 * This example receives integer values 1-10 from the host
 ********************************************************************/
 
#include <rtdx.h>       /* defines RTDX target API calls            */
#include "target.h"     /* defines TARGET_INITIALIZE()              */
#include <stdio.h>      /* C_I/O                                    */

/* declare a global input channel                                   */
RTDX_CreateInputChannel( ichan );
 
void main()
{
        int arraydata[10];
        int status,i;

        TARGET_INITIALIZE();

        /* enable the input channel                                 */
        RTDX_enableInput( &ichan );
 
        /*************************************************************
         * Insert code from Step #2 here - to request an array of
         *                                 integers
         *
         ************************************************************/
        status = RTDX_read( &ichan, arraydata, sizeof(arraydata) );

        if ( status != sizeof(arraydata) ) {
                printf( "ERROR: RTDX_read failed!\n" );
                exit( -1 );
        } else
                for( i = 0; i < ( sizeof(arraydata) / sizeof(int) ); i++)
                        printf( "Value %d was received from the host\n",
                                arraydata[i] );

        /* disable the input channel                                */
        RTDX_disableInput( &ichan );

        printf( "Program Complete!\n" );
}