What is the COM stack?
Imagine you’re a developer working on an ECU responsible for monitoring engine temperature in a vehicle. Your task is to ensure that the ECU can send alerts to other ECUs in the vehicle CAN network when the temperature exceeds a certain threshold.
In a traditional embedded implementation, you would need to handle the entire communication process yourself. This involves configuring the hardware interfaces (such as CAN, FlexRay, or Lin) for communication, formatting the message data, managing the timing and synchronization of data transmission, and implementing error detection and recovery mechanisms. This process requires too much low-level coding and is highly dependent on the specific hardware and communication protocols used in the system.
In AUTOSAR, communication between ECUs is abstracted through standardized interfaces and a layered communication stack. Here’s how the same scenario would be handled in an AUTOSAR-compliant system:
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