XCP Protocol for ECU Measurement and Calibration

Communicate with ECUs from MATLAB and Simulink using XCP Protocol

The XCP protocol is commonly used in the automotive industry to measure and calibrate electronic control units (ECUs). Specifically, engineers use the XCP protocol to read measurement data and write parameters to ECUs during development, testing, and in-vehicle calibration.

The XCP protocol specification is defined by ASAM (Association for Standardisation of Automation and Measuring Systems), and is an evolution of CCP (CAN calibration protocol). One notable difference is that the XCP specification allows for a variety of transport layers such as XCP over CAN, XCP over FlexRay, and XCP over Ethernet.

MATLAB^® and Simulink^®, together with Vehicle Network Toolbox™, let you perform the following tasks using the XCP protocol over CAN:

• Communicate with ECUs using DAQ and STIM lists
• View available ECU measurements and events using A2L files
• Test control algorithms on ECUs in bypass mode

Examples and How To

• XCP Data Acquisition over CAN (Example)
• Access XCP A2L Files (Example)
• XCP Dynamic DAQ Lists (Example)

Software Reference

• XPC Communication in Simulink (Documentation)
• Supported CAN Bus Interface Devices (Hardware Support)

See also: CAN network communication, data acquisition, test and measurement