DS3231 Alarm Interrupt

/*
  DS3231_set.pde
  Eric Ayars
  4/11

  Test of set-time routines for a DS3231 RTC

*/

#include <Wire.h>


void setup() {
  // Start the serial port
  Serial.begin(9600);

  // Start the I2C interface
  Wire.begin();

  pinMode(3, INPUT_PULLUP);
  attachInterrupt(digitalPinToInterrupt(3), writeOut, FALLING);
}

void writeOut()
{
  Serial.println("Recieved");
}

void loop() {
  //First lets set the alarm 2
  setAlarm();
}

void setAlarm()
{
  // Set our alarm bits
  Wire.beginTransmission(0x68); //begin session to RTC
  Wire.write(0x0B); //Address we wish to write to
  Wire.write(0B1000000); //A2M2 Enabled with 10 for minutes
  Wire.write(0B1000000); //A2M3 Enabled with 11 set for hours (24 hr format)
  Wire.write(0B1000000); //A2M4 Enabled with trig on Day 1
  Wire.write(0B0000110); //Alarm 2 enabled, interupt enabled, alarm 1 disabled, oss diabled
  Wire.write(0B0000000); //Disable Osc Stop bit, 32khz, A2 flag, A1 flag
  Wire.endTransmission(); //End write Session

  Wire.beginTransmission(0x68); //begin write session for 0x0B
  Wire.write(0x0B); //goto the bit we want
  Wire.endTransmission(); //close our request
  Wire.requestFrom(0x68, 5);

  for (int i = 0; i < 5; i++)
  {
    Serial.print("Line " + (String)i + " :");
    Serial.print(Wire.read(), BIN);
    Serial.print("\r\n");
  }


  Serial.println("--------------");

  while (true)
  {
    delay(1000);
    Wire.beginTransmission(0x68); //begin write session for 0x0B
    Wire.write(0x00); //goto the bit we want
    Wire.endTransmission(); //close our request
    Wire.requestFrom(0x68, 16);
    for (int j = 0; j < 16; j++)
    {
      if (j == 0)
      {
        byte timeVal = Wire.read();
        int ten = timeVal >> 4;
        int one = timeVal & 0b00001111;
        Serial.println("T" + (String)ten + (String)one);
      }
      else if (j == 14)
      {
        Serial.print(Wire.read(), BIN);
        Serial.println();
        Serial.print(Wire.read(), BIN);
        Serial.println();
      }
      else
      {
        Wire.read();
      }