wdt.c

00001 /*
00002  * Copyright (c) 2010, Mariano Alvira <mar@devl.org> and other contributors
00003  * to the MC1322x project (http://mc1322x.devl.org)
00004  * All rights reserved.
00005  *
00006  * Redistribution and use in source and binary forms, with or without
00007  * modification, are permitted provided that the following conditions
00008  * are met:
00009  * 1. Redistributions of source code must retain the above copyright
00010  *    notice, this list of conditions and the following disclaimer.
00011  * 2. Redistributions in binary form must reproduce the above copyright
00012  *    notice, this list of conditions and the following disclaimer in the
00013  *    documentation and/or other materials provided with the distribution.
00014  * 3. Neither the name of the Institute nor the names of its contributors
00015  *    may be used to endorse or promote products derived from this software
00016  *    without specific prior written permission.
00017  *
00018  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
00019  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00020  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00021  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
00022  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00023  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00024  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00025  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00026  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00027  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00028  * SUCH DAMAGE.
00029  *
00030  * This file is part of libmc1322x: see http://mc1322x.devl.org
00031  * for details. 
00032  *
00033  *
00034  */
00035 
00036 #include <mc1322x.h>
00037 #include <board.h>
00038 #include <stdio.h>
00039 
00040 #include "config.h"
00041 
00042 #define DELAY 400000
00043 
00044 #define LED GPIO_LED_RED
00045 
00046 void main(void) {       
00047         volatile uint32_t i;
00048 
00049         uart1_init(INC,MOD,SAMP);
00050 
00051         printf("reset\n\r");
00052 
00053         /* set the watchdog timer timeout to 1 sec */
00054         cop_timeout_ms(1000);
00055 
00056         /* enable the watchdog timer */
00057         CRM->COP_CNTLbits.COP_EN = 1;
00058 
00059         GPIO->PAD_DIR.LED = 1;
00060 
00061         while(1) {
00062                 /* uncomment cop_service for normal operation */
00063                 //cop_service();
00064 
00065                 GPIO->DATA.LED = 1;
00066                 
00067                 for(i=0; i<DELAY; i++) { continue; }
00068                 
00069                 GPIO->DATA.LED = 0;
00070 
00071                 for(i=0; i<DELAY; i++) { continue; }
00072 
00073         };
00074 
00075 }
00076 

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