An ASAP2 description file (also called A2L) contains all information about the relevant data objects in the ECU, such as parameters, maps, real and virtual measured variables, structures and variant dependencies. For each of these objects, information such as memory address, storage structure, data type and conversion rules for conversion into physical units are required. In addition, an A2L file also contains the parameters for communication between XCP master (e.g. CANape) and XCP slave in the ECU.
