hardbyte
Etas interface failed
Describe the bug
Hello, I'm trying using ETAS ES581.3 for CAN interface
I've installed BOA Distribution Package 16.12.2021 in my computer
I try to create EtasBus or run detect search available configs
But it will go to ValueError in etas init.py line 25
CSI_CreateProtocolTree(ctypes.c_char_p(b""), nodeRange, ctypes.byref(self.tree))
Please check the problem or the correct installation for ETAS interface
To Reproduce
Here is my code
import can
from can.interfaces.etas import EtasBus
def main():
configs = can.interface.detect_available_configs(interfaces="etas")
for c in configs:
print(c)
bus = EtasBus(channel='ETAS://USB/ES581:45239', bitrate=500000, fd=False, data_bitrate=2000000)
print(bus)
Additional context
OS and version: Windows 10 Python version: 3.7.4 python-can version: 4.0.0 python-can interface/s (if applicable): ETAS 581.3
Traceback and logs
Traceback (most recent call last):
File "C:\Users\A50044\AppData\Local\Programs\Python\Python37-32\lib\runpy.py", line 193, in _run_module_as_main
"__main__", mod_spec)
File "C:\Users\A50044\AppData\Local\Programs\Python\Python37-32\lib\runpy.py", line 85, in _run_code
exec(code, run_globals)
File "E:\bls2\venv\lib\site-packages\can\logger.py", line 224, in <module>
main()
File "E:\bls2\venv\lib\site-packages\can\logger.py", line 194, in main
bus = _create_bus(results, can_filters=_parse_filters(results), **additional_config)
File "E:\bls2\venv\lib\site-packages\can\logger.py", line 111, in _create_bus
return Bus(parsed_args.channel, **config) # type: ignore
File "E:\bls2\venv\lib\site-packages\can\interface.py", line 120, in __new__
bus = cls(channel, *args, **kwargs)
File "E:\bls2\venv\lib\site-packages\can\interfaces\etas\__init__.py", line 25, in __init__
CSI_CreateProtocolTree(ctypes.c_char_p(b""), nodeRange, ctypes.byref(self.tree))
ValueError: Procedure probably called with too many arguments (16 bytes in excess)
I found the problem I'm using 32 bit python It should use ctypes.CDLL in boa.py
# try to load libraries with hardcoded paths
if ctypes.sizeof(ctypes.c_voidp) == 4:
# 32 bit
path = "C:/Program Files (x86)/ETAS/BOA_V2/Bin/Win32/Dll/Framework/"
_csi = ctypes.CDLL("dll-csiBind")
_oci = ctypes.CDLL("dll-ocdProxy")
elif ctypes.sizeof(ctypes.c_voidp) == 8:
# 64 bit
path = "C:/Program Files/ETAS/BOA_V2/Bin/x64/Dll/Framework/"
_csi = ctypes.windll.LoadLibrary(path + "dll-csiBind")
_oci = ctypes.windll.LoadLibrary(path + "dll-ocdProxy")
But after I load correct dll I still get this error
Traceback (most recent call last):
File "test1.py", line 37, in <module>
main()
File "test1.py", line 13, in main
bus = EtasBus(channel='ETAS://USB/ES581:45239/CAN:1', bitrate=500000)
File "E:\bls2\venv\lib\site-packages\can\interfaces\etas\__init__.py", line 34, in __init__
ctypes.byref(self.ctrl),
File "E:\bls2\venv\lib\site-packages\can\interfaces\etas\boa.py", line 30, in errcheck_init
raise CanInitializationError(f"{func.__name__} failed with error 0x{result:X}")
can.exceptions.CanInitializationError: OCI_CreateCANControllerNoSearch failed with error 0x80001000
I test my E581.3 device with busmaster and I confirm that device works.
