pydlt 0.1.0

A pyre-python library to handle AUTOSAR DLT.

PyDLT

A pyre-python library to handle AUTOSAR DLT protocol, which is based on AUTOSAR Specification of Diagnostic Log and Trace V1.2.0 R4.0 Rev3, Section 7.7 Protocol Specification.

Quick Start

Write messages to DLT file

from pydlt.file import DltFileWriter
from pydlt.header import MessageLogInfo, MessageType, StorageHeader
from pydlt.message import DltMessage
from pydlt.payload import ArgumentStringAscii

# Create DLT message
msg1 = DltMessage.create_verbose_message(
    [ArgumentStringAscii("hello, pydlt!")],
    MessageType.DLT_TYPE_LOG,
    MessageLogInfo.DLT_LOG_INFO,
    "App",
    "Ctx",
    message_counter=0,
    str_header=StorageHeader(0, 0, "Ecu"),
)
msg2 = DltMessage.create_non_verbose_message(
    0,
    b"\x01\x02\x03",
    message_counter=1,
    str_header=StorageHeader(0, 0, "Ecu"),
)

# Write DLT messages to file
with DltFileWriter("<path to DLT file>") as writer:
    writer.write_messages([msg1, msg2])

Read messages from DLT file

from pydlt.file import DltFileReader

# Read DLT messages from file
for msg in DltFileReader("<path to DLT file>"):
    # Print overview of each DLT message
    # i.e.)
    # 1970/01/01 09:00:00.000000 0 Ecu App Ctx log info verbose 1 hello, pydlt!
    # 1970/01/01 09:00:00.000000 1 Ecu non-verbose [0] 010203
    print(msg)

Limitation

The following format of Type Info in a Payload has not been supported.

• TYPE_LENGTH_128BIT
• TYPE_ARRAY
• VARIABLE_INFO
• FIXED_POINT
• TRACE_INFO
• TYPE_STRUCT