Problems Waking from Hibernate

koz · **Joined:** Fri Jun 01, 2012 8:18 pm **Posts:** 14

Hello,

I have been having some trouble getting the waspmote to wake from hibernate. I have run the basic codes, and they work as expected. I have copied in my code for you to look at. It seems to get to the point where the LEDs blink, the first time, but then gets stuck somewhere in the method call when it comes out of hibernate. It never gets to the point where the LEDs flash for a long period of time at the end of the method (in order to see that the SD write is sucessful each time a line is written).

Thanks!

Quote:

void setup(){

  USB.begin();
  USB.println("USB Started.");

  SD.begin();
  SD.setMode(SD_ON);
  SD.init();

  RTC.ON();
  USB.println("Initialize RTC");
  PWR.ifHibernate();


  if (SD.create("TemperatureData.txt")){
      USB.println("Successfully created TemperatureData.txt.");
     }
    else{
      USB.println("Temperature.txt not successfully created, check for existing files.");
     }
}

void loop(){

  Utils.blinkLEDs(1000);
//   RTC.setTime("12:06:07:05:11:24:00");


  if( intFlag & HIB_INT ) {
    Utils.blinkLEDs(1000);
    hibInterrupt();
  }

   PWR.hibernate("00:00:00:10",RTC_OFFSET,RTC_ALM1_MODE2);

}

void hibInterrupt()
{
   SD.begin();
  SD.setMode(SD_ON);
  SD.init();



     char temperature_data[10]="";
  Utils.float2String(RTC.getTemperature(),temperature_data,5);

//      USB.print("Time: ");
//    USB.println(RTC.getTime());
   Utils.blinkLEDs(1000);
//    USB.print(",Temperature(Celcius): ");
//    USB.print(RTC.getTemperature(),DEC);
//    USB.println("]");

//
    SD.writeSD("TemperatureData.txt",temperature_data,20);
    SD.writeSD("TemperatureData.txt",RTC.getTime(),20);
    if(!SD.appendln("TemperatureData.txt",temperature_data)){
      USB.println("Temperature Data Write Unsuccessful");
    }
    if(!SD.appendln("TemperatureData.txt",RTC.getTime())){
      USB.println("Temperature Data Time Write Unsuccessful");
  }

     Utils.blinkLEDs(1000);
     Utils.blinkLEDs(1000);
     Utils.blinkLEDs(1000);
     Utils.blinkLEDs(1000);
     Utils.blinkLEDs(1000);

     intFlag &= ~(HIB_INT);
  }

libelium-dev · **Joined:** Mon Sep 28, 2009 1:06 pm **Posts:** 7516

koz,

try applying this changes:

Move PWR.ifHibernate(); at the beginning of setup loop.
Use SD.ON() instead of Sd.begin(), setMode and init.

Besides that, are you removing the hibernate jumper?

Let us know.

Regards.

koz · **Joined:** Fri Jun 01, 2012 8:18 pm **Posts:** 14

It is still not working as expected. How about this code?

Quote:

void setup()
{
  PWR.ifHibernate();

RTC.ON();

  RTC.setTime("09:10:20:03:17:35:00");

  USB.begin();

  SD.ON();

    if (SD.create("TemperatureData.txt")){
      USB.println("Successfully created TemperatureData.txt.");
      }
    else{
      USB.println("Temperature.txt not successfully created, check for existing files.");
    }


  // Checks if we come from a normal reset or an hibernate reset

}

void loop()
{




  Utils.blinkLEDs(1000);

  RTC.setAlarm1("20:17:35:10",RTC_ABSOLUTE,RTC_ALM1_MODE3); //1 minute later

  // If Hibernate has been captured, execute hte associated function
  if( intFlag & RTC_INT )
  {
    hibInterrupt();
  }

  // Set Waspmote to Hibernate, waking up after 10 seconds
  PWR.hibernate(RTC.getAlarm1(),RTC_ABSOLUTE,RTC_ALM1_MODE3);
  RTC.clearAlarmFlag();

}

void hibInterrupt()
{


  USB.begin();
  Utils.blinkLEDs(1000);
  Utils.blinkLEDs(1000);
  USB.println("I'm awake!");
  USB.print("Temperature: ");
  USB.println(RTC.getTemperature(),DEC);
  USB.print("Time: ");
  USB.println(RTC.getTime());

SD.ON();

  char temperature_data[10]="";
  Utils.float2String(RTC.getTemperature(),temperature_data,5);

   SD.appendln("TemperatureData.txt",temperature_data);
  SD.appendln("TemperatureData.txt",RTC.getTime());
  if(!SD.appendln("TemperatureData.txt",temperature_data)){
    USB.println("Temperature Data Write Unsuccessful");
  }
  if(!SD.appendln("TemperatureData.txt",RTC.getTime())){
    USB.println("Temperature Data Time Write Unsuccessful");
  }
  intFlag &= ~(HIB_INT);

}

libelium-dev · **Joined:** Mon Sep 28, 2009 1:06 pm **Posts:** 7516

koz,

Could you please be more specific?

Where is your code sticking?

Regards.

koz · **Joined:** Fri Jun 01, 2012 8:18 pm **Posts:** 14

Sure, with this new code (using the alarm instead of just timing how often this should happen), the mote does not come back up from hibernate at all. I am removing the jumper and I have modified the code as you specified earlier. The code I first posted I finally got working, so I switched to setting an alarm instead (because this is what is wanted), but now the mote will not wake up. Is there an error in my posted code?

libelium-dev · **Joined:** Mon Sep 28, 2009 1:06 pm **Posts:** 7516

koz,

Try these things.

Not necessary to use RTC.ON(). It is already ON when you use PWR.hibernate.
Try increasing hibernate time to 5 minutes, maybe you are spending more than one minute in doing your stuff.

Let us know.

Regards.

koz · **Joined:** Fri Jun 01, 2012 8:18 pm **Posts:** 14

Took out RTC.ON(); It should not take more than a minute, because the code worked previously with 10 second delay rather than using the alarm for 30 seconds later..

libelium-dev · **Joined:** Mon Sep 28, 2009 1:06 pm **Posts:** 7516

koz,

What if you check code behaviour with deep sleep mode, where no jumper needs to be removed, and then, when it is working, just change to hibernate?

Let us know.

Regards.

koz · **Joined:** Fri Jun 01, 2012 8:18 pm **Posts:** 14

I can get it to wake from sleep but not always from hibernate. I am having a lot of troubles with timing sleep functions in my code. I want some sensors to capture data every minute and others every four hours, which use both alarms but then I also need Wifi to send this data every 24 hours, but there are no more alarms to set. I am also have trouble getting wifi to wake from sleeping. I have read all of the guides and resources available and it is not working out.

libelium-dev · **Joined:** Mon Sep 28, 2009 1:06 pm **Posts:** 7516

koz,

Well, you say that sleep modes are ok. That is a starting point.

Now, let's try to make a simple code which hibernates well. We recommend you to put a delay of a few seconds or a led blink before PWR.hibernate() sentence to allow removing hibernate jumper correctly.

Then, you can make a smart code which sleeps corresponding time (1 hour, 4 hours 24 hours) depending of some variable that you can set and save into EPPROM memory before going sleep/hibernate, all done using only one alarm. Do you understand? Check example of managing EEPROM.

Let us know your comments.

Regards.