Exceptions¶
CanError¶
- exception canlib.canlib.CanError[source]¶
Bases:
canlib.exceptions.DllException
Base class for exceptions raised by the canlib class
Looks up the error text in the canlib dll and presents it together with the error code and the wrapper function that triggered the exception.
CanNoMsg¶
- exception canlib.canlib.CanNoMsg[source]¶
Bases:
canlib.canlib.exceptions.CanError
Raised when no matching message was available
- status = -2¶
CanNotFound¶
- exception canlib.canlib.CanNotFound[source]¶
Bases:
canlib.canlib.exceptions.CanError
Specified device or channel not found
There is no hardware available that matches the given search criteria. For example, you may have specified
Open.REQUIRE_EXTENDED
but there’s no controller capable of extended CAN. You may have specified a channel number that is out of the range for the hardware in question. You may have requested exclusive access to a channel, but the channel is already occupied.New in version 1.6.
- status = -3¶
CanScriptFail¶
- exception canlib.canlib.CanScriptFail[source]¶
Bases:
canlib.canlib.exceptions.CanError
Raised when a script call failed.
This exception represents several different failures, for example:
Trying to load a corrupt file or not a .txe file
Trying to start a t script that has not been loaded
Trying to load a t script compiled with the wrong version of the t compiler
Trying to unload a t script that has not been stopped
Trying to use an envvar that does not exist
- status = -39¶
EnvvarException¶
- exception canlib.canlib.EnvvarException[source]¶
Bases:
canlib.exceptions.CanlibException
Base class for exceptions related to environment variables.
EnvvarNameError¶
- exception canlib.canlib.EnvvarNameError(envvar)[source]¶
Bases:
canlib.canlib.exceptions.EnvvarException
Raised when the name of the environment variable is illegal.
EnvvarValueError¶
- exception canlib.canlib.EnvvarValueError(envvar, type_, value)[source]¶
Bases:
canlib.canlib.exceptions.EnvvarException
Raised when the type of the value does not match the type of the environment variable.
IoNoValidConfiguration¶
- exception canlib.canlib.IoNoValidConfiguration[source]¶
Bases:
canlib.canlib.exceptions.CanError
I/O pin configuration is invalid
No I/O pins was found, or unknown I/O pins was discovered.
New in version 1.8.
- status = -48¶
IoPinConfigurationNotConfirmed¶
- exception canlib.canlib.IoPinConfigurationNotConfirmed[source]¶
Bases:
canlib.canlib.exceptions.CanError
I/O pin configuration is not confirmed
Before accessing any I/O pin value, the device I/O pin configuration must be confirmed, using e.g.
Channel.io_confirm_config
.See also
iopin.Configuration
.New in version 1.8.
- status = -45¶
TxeFileIsEncrypted¶
- exception canlib.canlib.TxeFileIsEncrypted[source]¶
Bases:
canlib.exceptions.CanlibException
Raised when trying to access
Txe.source
and the source and byte-code sections of the .txe binary have been encrypted.New in version 1.6.