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SpiWriteRegister(0x08, 0x04);

// Enable Wake Up Timer and Low Batter Detect

SpiWriteRegister(0x07, 0x60);

//MAIN Loop//

while(1)

{

while ( NIRQ == 1);

//read interrupt status registers to clear the interrupt flags and release NIRQ pin

ItStatus1 = SpiReadRegister(0x03);

//read the Interrupt Status1 register

ItStatus2 = SpiReadRegister(0x04);

//read the Interrupt Status2 register

if ((ItStatus2 & 0x04) == 0x04 )

// Low Battery Detect Interrupt Occured

{

LED2 = 1;

Battery_Voltage_Level = SpiReadRegister(0x1B);

Battery_Voltage_Level = 0x00;

// Disable Low Battery Detect Measurement

SpiWriteRegister(0x07, 0x20);

// Delay

for (temp8=0;temp8<255;temp8++)

{

for(delay=0;delay<10000;delay++);

}

// Enable Low Battery Detect Measurement

SpiWriteRegister(0x07, 0x60);

LED2 = 0;

}

}

}