receiver.c

MANTIS是由科罗拉多大学开发的传感器网络嵌入式操作系统。 这是mantis的0.9.5版本的源码。

/*
  This file is part of MANTIS OS, Operating System for Nymph.
  See http://mantis.cs.colorado.edu/

  Copyright (C) 2003 University of Colorado, Boulder

  This program is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public License
  as published by the Free Software Foundation; either version 2
  of the License, or (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  (See http://www.gnu.org/copyleft/gpl.html)
  along with this program; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307,
  USA, or send email to [e-mail].
*/

/**
 * File:     receiver.c      
 * Author:   Charles Gruenwald III
 * Date:     03-24-2004
 *
 * Description: receiver will sit in a tight while loop looking for
 * values received over the radio. Any value it receives it will then
 * show on the leds and send over the serial line using the uart. It is
 * to be used with compatable hardware (nymph/mica2).
 * 
 */
#include <inttypes.h>

#include "led.h"
#include "com.h"        //give us the communication layer
#include "printf.h"
#include "msched.h"

void receiver();

void start(void)
{
   comBuf *recv_pkt;                     //give us a packet pointer

   com_mode(IFACE_RADIO, IF_LISTEN);
   
   while(1)
   {
      recv_pkt = com_recv(IFACE_RADIO); //blocking recv a packet
      com_send(IFACE_SERIAL, recv_pkt); //send the packet over serial
      com_free_buf(recv_pkt);           //free the recv'd packet to the pool

      mos_led_toggle(0);
   }
}