SystemView

SystemView is a software tool used for visualizing and analyzing the behavior of embedded real-time systems. Developed by SEGGER, it allows developers to observe the execution flow of their RTOS (Real-Time Operating System) and application code in real-time. The primary function of SystemView is to provide a detailed trace of system events, such as task scheduling, interrupt service routines, API calls, and inter-task communication.

The tool works by integrating a small software module into the target application, which then sends trace data to the host PC over a debug interface like J-Link. On the host, the SystemView application receives this data and presents it in various graphical formats, including a timeline view of tasks, event logs, and call stacks. This visual representation helps developers identify performance bottlenecks, race conditions, deadlocks, and other timing-related issues that are common in embedded systems.

SystemView supports a wide range of RTOSes, including FreeRTOS, embOS, Zephyr, and ThreadX, among others. Its ability to decode RTOS-specific events makes it a powerful debugging companion for embedded software engineers. By understanding the precise timing and interaction of different system components, developers can optimize their code for improved efficiency and reliability. The tool aims to simplify the complex task of debugging real-time embedded applications.