canLogParse

This is a library for importing and parsing data from Kvaser CAN files when you don't have a DBC file. The code should be fairly simple and self-documenting, and all other information should be contained within this file. You can install the library on pip via pip3 install canLogParse.

Functions

parseCanPacket(rawPacket, outputFormat="2dArray")

Takes a raw, unformatted CAN packet and returns it in a more useful format. The possible formats are array (the default), tuple, and dict.

Output data

The data is structured as follows:

leadingZero: The zero at the start of the packet.

id: The packet ID.

dataLength: The number of data bytes.

data: The data bytes in an array of strings.

T/R: It is assumed that this is transmit/receive, but so far it has only been observed as R.

timeStamp: The packet timestamp.

In array and tuple formats, the data is in the order above. In dict format, the keys are as stated above and

parseCanData(rawData, outputFormat="array")

Parses an array of CAN packets in the same way as parseCanPacket. Formats are the same as parseCanPacket, but put together in an array.

importCanLogFile(file, outputFormat="array")

The same as parseCanData, but taking the data from a file.

findUniqueIDs(packets)

Takes a 2D array (or array of tuples) of packets, returns a list of all unique packet IDs.

exportLogToCSV(log, filename)

Takes a 2D array of packets and writes the data in CSV format to the specified file.

_formatPacket(leadingZero, id, dataLength, data, tr, timeStamp, outputFormat="2dArray")

This function takes the given data and formats it in the specified way.

_formatPacketList(leadingZero, id, dataLength, data, tr, timeStamp), _formatPacketDict, and _formatPacketTuple

These functions take in the packet data and format it into either a list, a dictionary, or a tuple.

_extractDataFromPacket(packet)

This function takes a packet array and returns the data bytes as an array of strings. It does this by removing all known non-data bytes, which is a terrible way to do it. This function should be updated to extract it using the included dataLength byte.

_fileToList(file)

This takes a file name, and returns its rows in a list.

TODO

• Update _extractDataFromPacket to use the dataLength byte