Fr Tp Utils Module

class mtf.network_port.iso_tp.custom_fr_tp.fr_tp_utils.FrTpFieldSize

A utility class defining field sizes for various components of a FlexRayTP message

TGT_ADDR

SRC_ADDR

ADDR_INFO

FPL

MESSAGE_LEN

PCI_TYPE

BC

BFS

ACKNOWLEDGE

BYTE_POSITION

class mtf.network_port.iso_tp.custom_fr_tp.fr_tp_utils.SfLfOffsets

A utility class defining byte offsets for fields in a Single Frame or Last Frame of a FlexRayTP message.

TARGET_ADDRESS

SOURCE_ADDRESS

PCI

FRAME_PAYLOAD_LENGTH

MESSAGE_LENGTH

PAYLOAD

class mtf.network_port.iso_tp.custom_fr_tp.fr_tp_utils.CfOffsets

A utility class defining byte offsets for fields in a Consecutive Frame of a FlexRayTp message.

TARGET_ADDRESS

SOURCE_ADDRESS

PCI

FRAME_PAYLOAD_LENGTH

PAYLOAD

class mtf.network_port.iso_tp.custom_fr_tp.fr_tp_utils.FCOffsets

A utility class defining byte offsets for fields in a Flow Control frame in the FlexRayTp.

TARGET_ADDRESS

SOURCE_ADDRESS

PCI

BANDWIDTH_CONTROL

BUFFER_SIZE

ACKNOWLEDGE

BYTE_POSITION

class mtf.network_port.iso_tp.custom_fr_tp.fr_tp_utils.FrPciType

Enum class representing Protocol Control Information types for FlexRayTp frames.

START_FRAME

CONSECUTIVE_FRAME_1

CONSECUTIVE_FRAME_2

CONSECUTIVE_FRAME_EOB

FLOW_CONTROL

LAST_FRAME

UNKNOWN

__new__(value)

conjugate(): Returns self, the complex conjugate of any int.

bit_length()

Number of bits necessary to represent self in binary.

>>> bin(37)
'0b100101'
>>> (37).bit_length()
6

to_bytes(length, byteorder, *, signed=False)

Return an array of bytes representing an integer.

length: Length of bytes object to use. An OverflowError is raised if the integer is not representable with the given number of bytes.
byteorder: The byte order used to represent the integer. If byteorder is ‘big’, the most significant byte is at the beginning of the byte array. If byteorder is ‘little’, the most significant byte is at the end of the byte array. To request the native byte order of the host system, use `sys.byteorder’ as the byte order value.
signed: Determines whether two’s complement is used to represent the integer. If signed is False and a negative integer is given, an OverflowError is raised.

from_bytes(byteorder, *, signed=False)

Return the integer represented by the given array of bytes.

bytes: Holds the array of bytes to convert. The argument must either support the buffer protocol or be an iterable object producing bytes. Bytes and bytearray are examples of built-in objects that support the buffer protocol.
byteorder: The byte order used to represent the integer. If byteorder is ‘big’, the most significant byte is at the beginning of the byte array. If byteorder is ‘little’, the most significant byte is at the end of the byte array. To request the native byte order of the host system, use `sys.byteorder’ as the byte order value.
signed: Indicates whether two’s complement is used to represent the integer.

as_integer_ratio()

Return integer ratio.

Return a pair of integers, whose ratio is exactly equal to the original int and with a positive denominator.

>>> (10).as_integer_ratio()
(10, 1)
>>> (-10).as_integer_ratio()
(-10, 1)
>>> (0).as_integer_ratio()
(0, 1)

real: the real part of a complex number

imag: the imaginary part of a complex number

numerator: the numerator of a rational number in lowest terms

denominator: the denominator of a rational number in lowest terms

class mtf.network_port.iso_tp.custom_fr_tp.fr_tp_utils.FrFlowStatus

Enum class representing flow control statuses for FlexRayTp frames.

CTS

ACK_RET

WT

ABT

OVFLW

UNKNOWN

classmethod get_flow_status(value) → FrFlowStatus

Returns the corresponding flow status for the given integer value.

Args:: value (int): The integer value representing a flow status.
Returns:: FrFlowStatus: The corresponding flow status, or UNKNOWN if the value is not valid.

__new__(value)

conjugate(): Returns self, the complex conjugate of any int.