/// <summary>
/// Reset the sensor.
/// </summary>
public void Reset()
{
Standby = true;
_mag3110.WriteRegister((byte)Registers.Control1, 0x00);
_mag3110.WriteRegister((byte)Registers.Control2, 0x80);
_mag3110.WriteRegisters((byte)Registers.XOffsetMSB, new byte[] { 0, 0, 0, 0, 0, 0 });
}
/// <summary>
/// Reset the sensor.
/// </summary>
public void Reset()
{
Standby = true;
i2cPeripheral.WriteRegister((byte)Registers.Control1, 0x00);
i2cPeripheral.WriteRegister((byte)Registers.Control2, 0x80);
i2cPeripheral.WriteRegisters((byte)Registers.XOffsetMSB, new byte[] { 0, 0, 0, 0, 0, 0 });
}
protected void Initialize()
{
byte[] buffers = new byte[10];
// IO Direction
buffers[0] = 0xFF; //all input `11111111`
// set all the other registers to zeros (we skip the last one, output latch)
for (int i = 1; i < 10; i++)
{
buffers[i] = 0x00; //all zero'd out `00000000`
}
// the chip will automatically write all registers sequentially.
_i2cPeripheral.WriteRegisters(_IODirectionRegister, buffers);
// save our state
_iodir = buffers[0];
_gpio = 0x00;
_olat = 0x00;
_gppu = 0x00;
}
/// <summary>
/// Set one of the two alarms on the DS323x module.
/// </summary>
/// <param name="alarm">Define the alarm to be set.</param>
/// <param name="time">Date and time for the alarm.</param>
/// <param name="type">Type of alarm to set.</param>
public void SetAlarm(Alarm alarm, DateTime time, AlarmType type)
{
byte[] data = null;
var register = Registers.Alarm1Seconds;
var element = 0;
if (alarm == Alarm.Alarm1Raised)
{
data = new byte[5];
element = 1;
data[0] = Converters.ByteToBCD((byte)(time.Second & 0xff));
}
else
{
data = new byte[4];
register = Registers.Alarm2Minutes;
}
data[element++] = Converters.ByteToBCD((byte)(time.Minute & 0xff));
data[element++] = Converters.ByteToBCD((byte)(time.Hour & 0xff));
if ((type == AlarmType.WhenDayHoursMinutesMatch) || (type == AlarmType.WhenDayHoursMinutesSecondsMatch))
{
data[element] = (byte)(DayOfWeekToByte(time.DayOfWeek) | 0x40);
}
else
{
data[element] = Converters.ByteToBCD((byte)(time.Day & 0xff));
}
switch (type)
{
//
// Alarm 1 interrupts.
//
case AlarmType.OncePerSecond:
data[0] |= 0x80;
data[1] |= 0x80;
data[2] |= 0x80;
data[3] |= 0x80;
break;
case AlarmType.WhenSecondsMatch:
data[1] |= 0x80;
data[2] |= 0x80;
data[3] |= 0x80;
break;
case AlarmType.WhenMinutesSecondsMatch:
data[2] |= 0x80;
data[3] |= 0x80;
break;
case AlarmType.WhenHoursMinutesSecondsMatch:
data[3] |= 0x80;
break;
case AlarmType.WhenDateHoursMinutesSecondsMatch:
break;
case AlarmType.WhenDayHoursMinutesSecondsMatch:
data[3] |= 0x40;
break;
//
// Alarm 2 interupts.
//
case AlarmType.OncePerMinute:
data[0] |= 0x80;
data[1] |= 0x80;
data[2] |= 0x80;
break;
case AlarmType.WhenMinutesMatch:
data[1] |= 0x80;
data[2] |= 0x80;
break;
case AlarmType.WhenHoursMinutesMatch:
data[2] |= 0x80;
break;
case AlarmType.WhenDateHoursMinutesMatch:
break;
case AlarmType.WhenDayHoursMinutesMatch:
data[2] |= 0x40;
break;
}
_ds323x.WriteRegisters(register, data);
//
// Turn the relevant alarm on.
//
var controlRegister = ControlRegister;
var bits = (byte)ControlRegisterBits.A1IE;
if (alarm == Alarm.Alarm2Raised)
{
bits = (byte)ControlRegisterBits.A2IE;
}
controlRegister |= (byte)ControlRegisterBits.INTCON;
controlRegister |= bits;
ControlRegister = controlRegister;
}
public void UpdateDisplay()
{
i2cPeripheral.WriteRegisters(0x0, displayBuffer);
}