/// <summary>
/// Enables / Disables the square wave generation function of the clock.
/// Requires a pull-up resistor on the clock's SQW pin.
/// </summary>
/// <param name="Freq">Desired frequency or disabled</param>
/// <param name="OutCtrl">Logical level of output pin when the frequency is disabled (zero by default)</param>
public void SetSquareWave(SQWFreq Freq, SQWDisabledOutputControl OutCtrl = SQWDisabledOutputControl.Zero)
{
byte SqwCtrlReg = (byte)OutCtrl;
SqwCtrlReg <<= 3; // bit 7 defines the square wave output level when disabled
// bit 6 & 5 are unused
if (Freq != SQWFreq.SQW_OFF)
{
SqwCtrlReg |= 1;
}
SqwCtrlReg <<= 4; // bit 4 defines if the oscillator generating the square wave frequency is on or off.
// bit 3 & 2 are unused
SqwCtrlReg |= (byte)Freq; // bit 1 & 0 define the frequency of the square wave
WriteRegister(DS1307_SQUARE_WAVE_CTRL_REGISTER_ADDRESS, SqwCtrlReg);
}
/// <summary>
/// Enables / Disables the square wave generation function of the clock.
/// Requires a pull-up resistor on the clock's SQW pin.
/// </summary>
/// <param name="Freq">Desired frequency or disabled</param>
/// <param name="OutCtrl">Logical level of output pin when the frequency is disabled (zero by default)</param>
public void SetSquareWave(SQWFreq Freq, SQWDisabledOutputControl OutCtrl = SQWDisabledOutputControl.Zero)
{
byte SqwCtrlReg = (byte) OutCtrl;
SqwCtrlReg <<= 3; // bit 7 defines the square wave output level when disabled
// bit 6 & 5 are unused
if (Freq != SQWFreq.SQW_OFF) {
SqwCtrlReg |= 1;
}
SqwCtrlReg <<= 4; // bit 4 defines if the oscillator generating the square wave frequency is on or off.
// bit 3 & 2 are unused
SqwCtrlReg |= (byte) Freq; // bit 1 & 0 define the frequency of the square wave
WriteRegister(DS1307_SQUARE_WAVE_CTRL_REGISTER_ADDRESS, SqwCtrlReg);
}
