XCP Master Mode

The Universal Measurement and Calibration Protocol (XCP) is a network protocol that you can use to connect calibration systems to electronic control units (ECUs).

A node in the network can run in either master mode or slave mode. Simulink^® Real-Time™ supports XCP in master mode to replace (bypass) a subsystem of the ECU controller. The bypass model acquires input signals from the ECU system, computes the output, and stimulates the result.

To support XCP master mode, the Simulink Real-Time software provides the XCP sublibrary. You can:

• Acquire real-time measurement data by using the XCP CAN Data Acquisition block or XCP UDP Data Acquisition block.

• Attach incoming data to software interrupts by using the XCP UDP Bypass block.

• Stimulate real-time measurement data by using the XCP CAN Data Stimulation or XCP UDP Data Stimulation block.

To create an XCP master model:

• Provide an A2L (ASAP2) format file that contains signal, parameter, and XCP-specific network elements for the slave ECU.

• Provide an XCP Configuration block to load the A2L data into the XCP database.

• Provide one XCP CAN Transport Layer for each XCP CAN Configuration block.

  Simulink Real-Time supports XCP implemented by using FIFO mode CAN or real-time UDP as transport protocols.

• Apply stimulus data to the slave device by using the XCP Data Stimulation block.

• Acquire measurement data from the slave device by using the XCP Data Acquisition block.