To read CAN bus data, CAN interface must be enabled. Also, when connecting for the first time, it is recommended to use Passive Mode of CAN bus operation.
All necessary settings are made in the device configuration on the CAN bus tab.
¶ Description
- Device is connected to the CAN bus, CAN Spy window is open and the CAN bus baud rate has already been detected.
File selection function is available both in the CAN bus direct reading mode and in the log player mode.
- Go the the Parsing by decoding file tab.
At the top of the tab is a list of available decoding files. To the left of the list there is a filter by file names.
Below the list of files there is a table with list of parameters that the file can parse:- Dark highlighted parameters parsed by the file based on current data.
Value column shows the parameter value after parsing. - Grey highlighted parameters that could not be parsed using current data.
- Dark highlighted parameters parsed by the file based on current data.
¶ How it looks?
Animation shows an example of selecting a decoding file based on the KIA CEE'D log:
- Enter "kia" in the filter to work only with files for this vehicle brand.
- Files in the list can be scrolled or selected by pressing the mouse button.
- While iterating through the files, you can see examples of how different decoding files support a different set of parameters. Also, for the example of KIA OPTIMA, there is an example of incorrect parsing of the vehicle mileage * (after KIA OPTIMA file, really matching KIA CEE'D file will be selected to demonstrate the differences)*.
¶ Recommendations
Function of selecting the decoding file via CAN Spy works without writing the file to the device, therefore, it can significantly reduce the time for selecting the file and checking the values that will be received from the CAN bus during operation.
Always check the correctness of the parsed values according to the readings of the vehicle dashboard and other standard sensors.
Ability to select a file in the log player mode allows you not to delay the vehicle after editing to select the most appropriate file. You can write the log (see the article CAN bus logging) and let the vehicle go with the device connected. Select the required file, and then remotely write it to the device (see article on remote connection).