Simulink Real-Time (SLRT) can be used in XCP Client mode (formerly XCP Master mode) to replace (bypass) a subsystem of the ECU controller by acquiring internal signals and stimulating or injecting new values back into the ECU.
As of R2024b, Simulink Real-Time provides the following XCP Client capabilities:
- Support for XCP over CAN, CAN-FD and UDP
- Load A2L file that represents the ECU memory layout, signals, and parameters characteristics
- DAQ – Data acquisition from the ECU during runtime (data is available in the model)
- STIM – Data stimulation on the ECU during runtime (data is stimulated from the model)
An overview of relevant blocks and the basic workflow can be found here:XCP Client Mode - MATLAB & Simulink (mathworks.com)
For such ECU testing applications, it is typically required to calibrate and measure ECU parameters and signals. As of R2024b, a second connection to the ECU is required for calibration. You can use the 'Vehicle Network Toolbox' MATLAB functions readCharacteristic and writeCharacteristic, or tools such as Vector CANape® and ETAS® Inca.
The following webinar gives an overview of XCP capabilities with SLRT and Speedgoat hardware: "Model-based calibration testing and ECU bypassing with XCP using Simulink Real-Time and Speedgoat target hardware": https://www.mathworks.com/videos/model-based-calibration-testing-and-ecu-bypassing-with-xcp-using-simulink-real-time-and-speedgoat-target-hardware-1538149940399.html
