Getting started

The easiest way to use FreeRTOS-Plus-TCP is to start with the pre-configured demo application project (found in this directory). That way you will have the correct FreeRTOS source files included, and the correct include paths configured. Once a demo application is building and executing you can remove the demo application files, and start to add in your own application source files. See the FreeRTOS Kernel Quick Start Guide for detailed instructions and other useful links.

Additionally, for FreeRTOS-Plus-TCP source code organization refer to the Documentation, and API Reference.

FreeRTOS+TCP V2.3.2 source code(.c .h) is part of the FreeRTOS 202012.00 LTS release.

Getting help

If you have any questions or need assistance troubleshooting your FreeRTOS project, we have an active community that can help on the FreeRTOS Community Support Forum. Please also refer to FAQ for frequently asked questions.

Also see the Submitting a bugs/feature request section of CONTRIBUTING.md for more details.

Cloning this repository

This repository uses Git Submodules to bring in dependent components.

Note: If you download the ZIP file provided by GitHub UI, you will not get the contents of the submodules. (The ZIP file is also not a valid Git repository)

To clone using HTTPS:

git clone https://github.com/FreeRTOS/FreeRTOS-Plus-TCP.git
git submodule update --checkout --init --recursive tools/CMock test/FreeRTOS-Kernel

Using SSH:

git clone git@github.com:FreeRTOS/FreeRTOS-Plus-TCP.git
git submodule update --checkout --init --recursive tools/CMock test/FreeRTOS-Kernel

Porting

The porting guide is available on this page.

Repository structure

This repository contains the FreeRTOS-Plus-TCP repository and a number of supplementary libraries for testing/PR Checks. Below is the breakdown of what each directory contains:

• tools
  • This directory contains the tools and related files (CMock/uncrustify) required to run tests/checks on the TCP source code.
• tests
  • This directory contains all the tests (unit tests and CBMC) and the dependencies (FreeRTOS-Kernel/Litani-port) the tests require.
• portable
  • This directory contains the portable files required to compile the FreeRTOS-Plus-TCP source code for different hardware/compilers.
• include
  • The include directory has all the 'core' header files of FreeRTOS-Plus-TCP source.

Note

At this time it is recommended to use BufferAllocation_2.c in which case it is essential to use the heap_4.c memory allocation scheme. See memory management.

Kernel sources

The FreeRTOS Kernel Source is in FreeRTOS/FreeRTOS-Kernel repository, and it is consumed by testing/PR checks as a submodule in this repository.

The version of the FreeRTOS Kernel Source in use could be accessed at ./test/FreeRTOS-Kernel directory.