Class PIT

Handles the Programmable Interval Timer (PIT).

Inheritance
System.Object
Device
PIT
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: Cosmos.HAL
Assembly: Cosmos.HAL2.dll
Syntax
public class PIT : Device

Constructors

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PIT()

Declaration
public PIT()

Fields

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Command

Command register port.

Declaration
public const int Command = 67
Field Value
Type Description
System.Int32
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Data0

Channel 0 data port.

Declaration
public const int Data0 = 64
Field Value
Type Description
System.Int32
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Data1

Channel 1 data port.

Declaration
public const int Data1 = 65
Field Value
Type Description
System.Int32
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Data2

Channel 2 data port.

Declaration
public const int Data2 = 66
Field Value
Type Description
System.Int32
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PITDelayNS

Declaration
public const uint PITDelayNS = 838U
Field Value
Type Description
System.UInt32
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PITFrequency

Declaration
public const uint PITFrequency = 1193180U
Field Value
Type Description
System.UInt32
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T0RateGen

Declaration
public bool T0RateGen
Field Value
Type Description
System.Boolean

Properties

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T0Countdown

Declaration
public ushort T0Countdown { get; set; }
Property Value
Type Description
System.UInt16
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T0DelayNS

Declaration
public uint T0DelayNS { get; set; }
Property Value
Type Description
System.UInt32
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T0DelyNS

Declaration
[Obsolete("Use the T0DelayNS property instead.")]
public uint T0DelyNS { get; }
Property Value
Type Description
System.UInt32
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T0Frequency

Declaration
public uint T0Frequency { get; set; }
Property Value
Type Description
System.UInt32
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T2Countdown

Declaration
public ushort T2Countdown { get; set; }
Property Value
Type Description
System.UInt16
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T2DelayNS

Declaration
public uint T2DelayNS { get; set; }
Property Value
Type Description
System.UInt32
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T2DelyNS

Declaration
[Obsolete("Use the T2DelayNS property instead.")]
public uint T2DelyNS { get; }
Property Value
Type Description
System.UInt32
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T2Frequency

Declaration
public uint T2Frequency { get; set; }
Property Value
Type Description
System.UInt32

Methods

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DisableSound()

Declaration
[Obsolete("This method has been deprecated and is equivalent to a no-op.")]
public void DisableSound()
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EnableSound()

Declaration
[Obsolete("This method has been deprecated and is equivalent to a no-op.")]
public void EnableSound()
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MuteSound()

Declaration
[Obsolete("This method has been deprecated and is equivalent to a no-op.")]
public void MuteSound()
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PlaySound(Int32)

Declaration
public void PlaySound(int aFreq)
Parameters
Type Name Description
System.Int32 aFreq
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RegisterTimer(PIT.PITTimer)

Registers a timer to this PIT object.

Declaration
public int RegisterTimer(PIT.PITTimer timer)
Parameters
Type Name Description
PIT.PITTimer timer

The target timer.
Returns
Type Description
System.Int32

The newly assigned ID to the timer.
Exceptions
Type Condition
System.InvalidOperationException

Thrown when the given timer has already been registered.
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UnregisterTimer(Int32)

Unregisters a timer that has been previously registered to this PIT object.

Declaration
public void UnregisterTimer(int timerId)
Parameters
Type Name Description
System.Int32 timerId

The ID of the timer to unregister.
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Wait(UInt32)

Halts the CPU for the specified amount of milliseconds.

Declaration
public void Wait(uint timeoutMs)
Parameters
Type Name Description
System.UInt32 timeoutMs

The amount of milliseconds to halt the CPU for.
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WaitNS(UInt64)

Halts the CPU for the specified amount of nanoseconds.

Declaration
public void WaitNS(ulong timeoutNs)
Parameters
Type Name Description
System.UInt64 timeoutNs

The amount of nanoseconds to halt the CPU for.