Quality RTOS & Embedded Software

 Real time embedded FreeRTOS RSS feed 
Quick Start Supported MCUs PDF Books Trace Tools Ecosystem


Loading

Licencing question

Posted by Riccardo Manfrin on December 9, 2010
Reading the exceptions to the FreeRTOS GPL licence provided in this page, I'd like to be clarified regarding the permissions to use FreeRTOS on a commercial software project.
More specifically, assume I develop an independent module that stays on top of FreeRTOS and relays on it. As I'm not satisfied with the off-the-shelf provided FreeRTOS APIs, I make modifications to FreeRTOS and maybe extend its set of APIs.
If I release those modifications and APIs under your modified GPL licence, can I still close the module with a commercial licence?
Thanks in advance.
RM



RE: Licencing question

Posted by Richard on December 9, 2010
In very simple terms the API is the boundary between what must be open sourced and what need not be. If you extend or change the API then the new API and any changes to the code necessary to use the API will have to be open source. Your code that calls your API need not be.

Regards.


[ Back to the top ]    [ About FreeRTOS ]    [ Privacy ]    [ Sitemap ]    [ ]


Copyright (C) Amazon Web Services, Inc. or its affiliates. All rights reserved.

Latest News

NXP tweet showing LPC5500 (ARMv8-M Cortex-M33) running FreeRTOS.

Meet Richard Barry and learn about running FreeRTOS on RISC-V at FOSDEM 2019

Version 10.1.1 of the FreeRTOS kernel is available for immediate download. MIT licensed.

View a recording of the "OTA Update Security and Reliability" webinar, presented by TI and AWS.


Careers

FreeRTOS and other embedded software careers at AWS.



FreeRTOS Partners

ARM Connected RTOS partner for all ARM microcontroller cores

Espressif ESP32

IAR Partner

Microchip Premier RTOS Partner

RTOS partner of NXP for all NXP ARM microcontrollers

Renesas

STMicro RTOS partner supporting ARM7, ARM Cortex-M3, ARM Cortex-M4 and ARM Cortex-M0

Texas Instruments MCU Developer Network RTOS partner for ARM and MSP430 microcontrollers

OpenRTOS and SafeRTOS

Xilinx Microblaze and Zynq partner