RTC 10: Set Watchdog

This example shows how to setup the RTC Watchdog reset through the Alarm2 of the RTC. The RTC.setWatchdog() function permits to configure device resets in order to avoid

Required Materials

1 x Waspmote 1 x MiniUSB wire 1 x Battery

Notes

This example can be executed in Waspmote v15

Code

/*  
 *  ------ [RTC_10] Setting RTC watchdog reset -------- 
 *  
 *  Explanation: This example shows how to setup the RTC watchdog reset
 *  through the Alarm2 of the RTC. The RTC.setWatchdog() function permits 
 *  to configure device resets in order to avoid 
 *  
 *  Copyright (C) 2016 Libelium Comunicaciones Distribuidas S.L. 
 *  http://www.libelium.com 
 *  
 *  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 3 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 
 *  along with this program.  If not, see . 
 *  
 *  Version:           3.0
 *  Design:            David Gascon 
 *  Implementation:    Marcos Yarza, Yuri Carmona
 */


void setup()
{
  // init USB
  USB.ON();
  USB.println(F("*************************************"));
  USB.println(F("RTC_10 example"));
  USB.println(F("*************************************\n"));

  // init RTC 
  RTC.ON();
  USB.println(F("RTC time:"));
  USB.println(F("------------------------------------"));
  USB.println(RTC.getTime());
  USB.println(F("------------------------------------\n"));
}


void loop()
{   
  /************************************************************** 
   * -- Set RTC Watchdog reset --
   * The input refers to the number of times the 'minute hand' 
   * changes. Everytime this function is called, the timer starts
   * again from the beginning.
   * Input: from 1 to 1000 minutes
   *
   * Example: 
   *   If RTC is configured with 12h:30m:35s and we call 
   *   RTC.setWatchdog(1); when the RTC reaches 12h:31m:00s 
   *   a Waspmote reset will be triggered 
   **************************************************************/
  RTC.setWatchdog(1);

  USB.println(F("Watchdog settings:"));
  USB.println(F("----------------------------------------------------"));
  USB.println(RTC.getWatchdog());
  USB.println(F("----------------------------------------------------\n"));

  // enter an infinite while
  while(1)
  {
    USB.print(F("Inside infinite loop. Time: "));
    USB.println(RTC.getTime());
    delay(1000);
  }
}

Output

H#
 *************************************
 RTC_10 example
 *************************************
 RTC time:
 ------------------------------------
 Tue, 09/10/20, 17:36:30
 ------------------------------------
 Watchdog settings:
 ----------------------------------------------------
 Alarm Mode matches [Date:Hours:Minutes ] --> [20:17:37]
 ----------------------------------------------------
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:30
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:31
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:32
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:33
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:34
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:35
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:36
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:37
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:38
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:39
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:40
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:41
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:42
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:43
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:44
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:45
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:46
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:47
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:48
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:49
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:50
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:51
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:52
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:53
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:54
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:55
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:56
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:57
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:58
 Inside infinite loop. Time: Tue, 09/10/20, 17:36:59
 H#
 *************************************
 RTC_10 example
 *************************************
 RTC time:
 ------------------------------------
 Tue, 09/10/20, 17:37:02
 ------------------------------------
 ...