Unable to start CAN-FD session #293
Description
I am not able to start a simple CAN-FD session.
I wrote some code to list all available CAN interfaces. Then try to start a CAN-FD session to log all incoming CAN-FD frames.
The start tentative always ends with a UnicodeDecodeError.
This is the exact code to reproduce the error:
import nixnet
from nixnet import system
from nixnet import constants
from nixnet import types
import time
# Get CAN interface name
can_interfaces = nixnet.system.System().intf_refs_can
can_list = []
for can_interface in can_interfaces:
can_list.append(can_interface)
can_interface = can_list[0]
print(can_interface)
can_database = ':can_fd_brs:'
can_cluster = ''
with nixnet.FrameInStreamSession(str(can_interface), str(can_database), str(can_cluster)) as input_session:
input_session.intf.can_term = constants.CanTerm.OFF
input_session.intf.baud_rate = 1000000
input_session.intf.can_fd_baud_rate = 4000000
input_session.start()
for i in range(0, 10):
frames = input_session.frames.read(10000, constants.TIMEOUT_NONE)
for frame in frames:
print(frame)
time.sleep(0.1)
The full traceback:
Traceback (most recent call last):
File "D:\my_path\main.py", line 27, in <module>
input_session.start()
File "D:\Programs\Python\Python39\lib\site-packages\nixnet\_session\base.py", line 165, in start
_funcs.nx_start(self._handle, scope)
File "D:\Programs\Python\Python39\lib\site-packages\nixnet\_funcs.py", line 395, in nx_start
_errors.check_for_error(result.value)
File "D:\Programs\Python\Python39\lib\site-packages\nixnet\_errors.py", line 18, in check_for_error
status = status_to_string(error_code)
File "D:\Programs\Python\Python39\lib\site-packages\nixnet\_errors.py", line 33, in status_to_string
status_string = buffer_ctypes.value.decode("ascii")
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe9 in position 31: ordinal not in range(128)
If I don't specify database and cluster in the FrameInStreamSession() call, I do not have error, but by default the configuration is CAN, not CAN FD + BRS.
- OS: Windows 10
- Python version: 3.9.12
- NI-XNET version: 2023 Q1 (23.0.0f157)
Output from python -m pip list:
[Package Version
----------------------------- -----------
aiohttp 3.8.1
aiosignal 1.2.0
alabaster 0.7.12
altgraph 0.17.3
apptools 5.2.0
arrow 1.2.3
astroid 2.12.10
asttokens 2.0.8
async-timeout 4.0.2
atomicwrites 1.4.1
attrs 22.1.0
auto-py-to-exe 2.26.1
autopep8 1.6.0
Babel 2.10.3
backcall 0.2.0
bcrypt 4.0.0
beautifulsoup4 4.11.1
binaryornot 0.4.4
black 22.8.0
bleach 5.0.1
bottle 0.12.23
bottle-websocket 0.2.9
Brotli 1.0.9
certifi 2022.9.14
cffi 1.15.1
chardet 5.0.0
charset-normalizer 2.1.1
click 8.1.3
cloudpickle 2.2.0
colorama 0.4.5
configobj 5.0.6
contourpy 1.0.5
cookiecutter 2.1.1
crcengine 0.3.3
cryptography 38.0.1
cycler 0.11.0
dash 2.6.2
dash-core-components 2.0.0
dash-html-components 2.0.0
dash-table 5.0.0
debugpy 1.6.3
decorator 5.1.1
defusedxml 0.7.1
diff-match-patch 20200713
dill 0.3.5.1
docutils 0.19
Eel 0.14.0
entrypoints 0.4
envisage 6.1.0
executing 1.0.0
fastjsonschema 2.16.1
flake8 4.0.1
Flask 2.2.2
Flask-Compress 1.13
fonttools 4.37.2
frozenlist 1.3.1
ft4222 1.8.0
future 0.18.2
gevent 22.10.2
gevent-websocket 0.10.1
greenlet 2.0.1
idna 3.4
imagesize 1.4.1
importlib-metadata 4.12.0
inflection 0.5.1
intervaltree 3.1.0
ipykernel 6.15.3
ipython 7.34.0
ipython-genutils 0.2.0
isort 5.10.1
itsdangerous 2.1.2
jaraco.classes 3.2.2
jedi 0.18.1
jellyfish 0.9.0
Jinja2 3.1.2
jinja2-time 0.2.0
jsonschema 4.16.0
jupyter_client 7.3.5
jupyter-core 4.11.1
jupyterlab-pygments 0.2.2
kaleido 0.2.1
keyring 23.9.3
kiwisolver 1.4.4
lazy-object-proxy 1.7.1
lxml 4.9.1
Mako 1.2.2
Markdown 3.4.1
MarkupSafe 2.1.1
matplotlib 3.6.0
matplotlib-inline 0.1.6
mccabe 0.6.1
mistune 2.0.4
more-itertools 8.14.0
multidict 6.0.2
mypy-extensions 0.4.3
nbclient 0.6.8
nbconvert 7.0.0
nbformat 5.5.0
nest-asyncio 1.5.5
nidaqmx 0.6.4
nixnet 0.3.2
npTDMS 1.6.0
numpy 1.23.3
numpydoc 1.4.0
packaging 21.3
pandas 1.4.4
pandocfilters 1.5.0
paramiko 2.11.0
parso 0.8.3
pathspec 0.10.1
pdoc3 0.10.0
pefile 2022.5.30
pexpect 4.8.0
pickleshare 0.7.5
Pillow 9.2.0
pip 23.0.1
pip-review 1.2.0
platformdirs 2.5.2
plotly 5.10.0
pluggy 1.0.0
poyo 0.5.0
prompt-toolkit 3.0.31
psutil 5.9.2
ptyprocess 0.7.0
pure-eval 0.2.2
pycodestyle 2.8.0
pycparser 2.21
pydocstyle 6.1.1
pyface 7.4.2
pyflakes 2.4.0
Pygments 2.13.0
pyinstaller 5.7.0
pyinstaller-hooks-contrib 2022.14
pylint 2.15.3
pyls-spyder 0.4.0
PyNaCl 1.5.0
pyparsing 3.0.9
PyQt5 5.12.3
PyQt5-Qt5 5.15.2
PyQt5-sip 12.11.0
PyQtWebEngine 5.12.1
PyQtWebEngine-Qt5 5.15.2
pyrsistent 0.18.1
PySide6 6.3.2
PySide6-Addons 6.3.2
PySide6-Essentials 6.3.2
python-can 4.1.0
python-dateutil 2.8.2
python-lsp-black 1.1.0
python-lsp-jsonrpc 1.0.0
python-lsp-server 1.3.3
python-slugify 6.1.2
pytoolconfig 1.2.2
pytz 2022.2.1
pywin32 304
pywin32-ctypes 0.2.0
PyYAML 6.0
pyzmq 24.0.0
QDarkStyle 3.0.2
qstylizer 0.2.2
QtAwesome 1.1.1
qtconsole 5.2.2
QtPy 2.2.0
requests 2.28.1
rope 1.3.0
Rtree 1.0.0
scipy 1.9.1
setuptools 65.3.0
shiboken2 5.15.2.1
shiboken6 6.3.2
six 1.16.0
snowballstemmer 2.2.0
sortedcontainers 2.4.0
soupsieve 2.3.2.post1
Sphinx 5.1.1
sphinxcontrib-applehelp 1.0.2
sphinxcontrib-devhelp 1.0.2
sphinxcontrib-htmlhelp 2.0.0
sphinxcontrib-jsmath 1.0.1
sphinxcontrib-qthelp 1.0.3
sphinxcontrib-serializinghtml 1.1.5
spyder 5.2.2
spyder-kernels 2.2.1
stack-data 0.5.0
tenacity 8.1.0
testpath 0.6.0
text-unidecode 1.3
textdistance 4.5.0
three-merge 0.1.1
tinycss2 1.1.1
toml 0.10.2
tomli 2.0.1
tomlkit 0.11.4
tornado 6.2
traitlets 5.4.0
traits 6.4.1
traitsui 7.4.0
typing_extensions 4.3.0
ujson 5.5.0
urllib3 1.26.12
vtk 9.1.0
watchdog 2.1.9
wcwidth 0.2.5
webencodings 0.5.1
Werkzeug 2.2.2
whatthepatch 1.0.2
whichcraft 0.6.1
wrapt 1.14.1
wslink 1.8.2
yapf 0.32.0
yarl 1.8.1
zipp 3.8.1
zope.event 4.6
zope.interface 5.5.2](url)