t_rdsa.c

来自「TMS320F2812的C++ examples 各个模块的程序」· C语言 代码 · 共 52 行

/*********************************************************************
 * FILENAME: $RCSfile: t_rdsa.c,v $
 * VERSION : $Revision: 1.6 $
 * DATE    : $Date: 2000/11/03 19:12:12 $
 * Copyright (c) 1997-2000 Texas Instruments Incorporated
 *
 * Target Read (for SAFEARRAYS) Example:
 *____________________________________________________________________
 * - Read an array of 5 integers, 100 times, via RTDX_read().
 * - Uses ONE input channel
 *
 * - This is the module to be run on the TARGET.
 * - This program is meant to be used with the RTDX Excel project's
 *   VBA module h_wrtsa().
 ********************************************************************/
#include <stdio.h>                     /* fprintf(), puts()         */
#include <stdlib.h>                    /* abort()                   */
#include <rtdx.h>                      /* RTDX                      */
#include "target.h"                    /* TARGET_INITIALIZE()       */

#define MAX_MESSAGES 100
#define MAX_ELEMENTS 5

/* Declare and initialize an input channel called "ichan"           */
RTDX_CreateInputChannel(ichan);

void main()
{
        unsigned int i;
        int recvd[MAX_ELEMENTS];

        /* Target initialization for RTDX                           */
        TARGET_INITIALIZE();

        /* Enable the channel, "ichan"                              */
        RTDX_enableInput(&ichan);

        for ( i = 0; i < MAX_MESSAGES; i++ ) {
                if ( (RTDX_read( &ichan, recvd, sizeof(recvd) )) !=
                    sizeof(recvd) ) {
                        fprintf(stderr,
                                "\nError: RTDX_read() failed\n");
                        abort();
                }
        }

        /* Disable the channel, "ichan"                             */
        RTDX_disableInput(&ichan);

        puts("\nProgram Completed!");
}