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Local Interconnect Network (LIN) support for python

Project description

LIN Python lib

Library is under development API will change

Features

  • LIN frame transmission / reception
  • LDF signals encoding / decoding (only signal and frames currently working, schedule table parsing not implemented, max signal size is 1 byte)
  • Works on windows, linux, mac. Supported hardware , uCAN LIN USB CONVERTER

Installation

pip install ucanlintools

Example usage

To load ldf

from ucanlintools.LDF_parser import parseLDF
ldf = parseLDF("D:\\ldfe.ldf") 
message = ldf.get_message_by_name('FRAME_A')
print(message.signals)

To decode/ encode frame

aaa = message.encode({'SIGNAL_A': 1})
bbb = b'\x00\x00\x00\x00\x00\x00'
message.decode(bbb)

To setup LIN USB Converter

lin = ucanlintools.LUC('COM7')
lin.set_frame_rx_handler(rx_any)
lin.set_new_frame_rx_handler(rx_new_data)

lin.openAsMaster()

lin.addReceptionFrameToTable(52,8)
lin.addReceptionFrameToTable(54,8)
lin.enable()

Example data reception handler

def rx_new_data(f):
        global message
        print (hex(f.id) + ": " +(f.data.hex()))
        if (message.id == f.id):
                message.decode(f.data)
                print(message.diff_str())

For more info see

https://ucandevices.github.io

Project details


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