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FreeRTOS is an excellent embedded real-time operating system for microcontrollers. Being light-weighted, distributed freely under MIT open-source License, and built with an emphasis on portability, tailorability, and flexible scheduling policy, it requires low RAM/ROM consumption and supports management of task, time, semaphore, message queue, and memory.

This document introduces the FreeRTOS porting example in the GR55xx SDK, including usage of the example and descriptions of major source code.

Before using and modifying a FreeRTOS example, you can refer to the following documents and information.

Table 1 Reference documents
Name Description

Developer guide of the specific GR55xx SoC

Introduces the software/hardware and quick start guide of the specific GR55xx SoC in use.

Keil User Guide

Offers detailed Keil operational instructions. Available at

FreeRTOS Documentation

Provides guidance on using FreeRTOS. Available at

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