Communication between the SWCs
The virtual functional bus (VFB) implements communication between SWCs. It provides an abstraction layer that isolates the applications from the base infrastructure. During operation, the VFB is generally embodied by the RTE and is uniquely produced for each ECU in the AUTOSAR system. Communication within the VFB occurs through dedicated ports, requiring the mapping of communication interfaces from the application software to these ports. The VFB handles communication both within an individual ECU and between multiple ECUs, enabling a seamless exchange of data and information across the system:
Figure 4.9 – Intra/inter-ECU communication
The communication between SWCs can occur in two ways, as depicted in the preceding diagram: inter-ECU and intra-ECU. Both types of communication are managed through the AUTOSAR RTE. Let’s take a closer look at them:
- Inter-ECU communication, such as between ECU I and ECU...
