Raw Can Decoding

I'm trying to import CAN data using a virtual CAN network and am getting strange results when I unpack my CAN packet of data. I'm using Python 3.3.7 Code: import socket, sys,

Solution 1:

Rather than laboriously complete that table you started, just look at any ASCII code chart. When you simply print a string, any characters that are actually ASCII text will print as that character: only unprintable characters get shown as hexadecimal escapes. If you want everything in hex, you need to explicitly request that:

import binascii

print(binascii.hexlify(data))

for example.

Solution 2:

I'm sure you've already run into the python-can library? If not we have a native python version of socketcan that correctly parse data out of CAN messages. Some of the source might help you out - or you might want to use it directly. CAN_RAW is probably what you want, if you plan on leaving virtual can for real hardware you might also want to get the timestamp from the hardware.

Not all constants have been exposed in Python's socket module so there is also a ctypes version which made in easier to experiment with things like the socketcan broadcast manager. Docs for both are here.