com.embeddedunveiled.serial.vendor

Enum SerialComFTDID2XX.PARITY

java.lang.Object

java.lang.Enum<SerialComFTDID2XX.PARITY>

com.embeddedunveiled.serial.vendor.SerialComFTDID2XX.PARITY

All Implemented Interfaces:

Serializable, Comparable<SerialComFTDID2XX.PARITY>

Enclosing class:

SerialComFTDID2XX

public static enum SerialComFTDID2XX.PARITY
extends Enum<SerialComFTDID2XX.PARITY>

Pre-defined enum constants for enabling type of parity in a serial frame.

Enum Constant Summary

Enum Constants

Enum Constant and Description
FT_PARITY_EVEN The number of bits in the frame with the value one is even.
FT_PARITY_MARK The parity bit is set to the mark signal condition (logical 1).
FT_PARITY_NONE The uart frame does not contain any parity bit.
FT_PARITY_ODD The number of bits in the frame with the value one is odd.
FT_PARITY_SPACE The parity bit is set to the space signal condition (logical 0).

Method Summary

Methods

Modifier and Type	Method and Description
int	getValue()
static SerialComFTDID2XX.PARITY	valueOf(String name) Returns the enum constant of this type with the specified name.
static SerialComFTDID2XX.PARITY[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

FT_PARITY_NONE

public static final SerialComFTDID2XX.PARITY FT_PARITY_NONE

The uart frame does not contain any parity bit. Errors are handled by application for example using CRC algorithm.

FT_PARITY_ODD

public static final SerialComFTDID2XX.PARITY FT_PARITY_ODD

The number of bits in the frame with the value one is odd. If the sum of bits with a value of 1 is odd in the frame, the parity bit's value is set to zero. If the sum of bits with a value of 1 is even in the frame, the parity bit value is set to 1, making the total count of 1's in the frame an odd number.

FT_PARITY_EVEN

public static final SerialComFTDID2XX.PARITY FT_PARITY_EVEN

The number of bits in the frame with the value one is even. The number of bits whose value is 1 in a frame is counted. If that total is odd, the parity bit value is set to 1, making the total count of 1's in the frame an even number. If the count of ones in a frame a is already even, the parity bit's value remains 0.

Odd parity may be more fruitful since it ensures that at least one state transition occurs in each character, which makes it more reliable as compared even parity.

Even parity is a special case of a cyclic redundancy check (CRC), where the 1-bit CRC is generated by the polynomial x+1.

FT_PARITY_MARK

public static final SerialComFTDID2XX.PARITY FT_PARITY_MARK

The parity bit is set to the mark signal condition (logical 1). An application may use the 9th (parity) bit for some form of addressing or special signaling.

FT_PARITY_SPACE

public static final SerialComFTDID2XX.PARITY FT_PARITY_SPACE

The parity bit is set to the space signal condition (logical 0). The mark and space parity is uncommon, as it adds no error detection information.

Method Detail

values

public static SerialComFTDID2XX.PARITY[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (SerialComFTDID2XX.PARITY c : SerialComFTDID2XX.PARITY.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static SerialComFTDID2XX.PARITY valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

getValue

public int getValue()