Quality RTOS & Embedded Software

 Real time embedded FreeRTOS RSS feed 
Real time embedded FreeRTOS mailing list 
Quick Start Supported MCUs PDF Books Trace Tools Ecosystem TCP & FAT Training


Derived work license questions

Posted by Julián da Silva on November 2, 2009
Hi, we are working o a small rtos based on the FreeRTOS v5.4.2 kernel, with some mofications to fit the popular Arduino boards. So we called it DiunOS. We did the following, trying to fulfill the license of FreeRTOS:

1. We included a copy of your license file, and an small comment and link to www.freertos.org in the Readme.txt file deployed with the system.
2. We deploy full source code in our official distribution.
3. We will include a mention to you and a link in our website.


1. Is it ok for you, or is there something else we have to do?
2. Can we publish our tests with DuinOS on our AVR based hardware, including screen captures of our digital osciloscope? It's to help the users see with wich libraries from the standard Arduino API they may have timming problems, so they can decide how to program their applications. We would like to write some examples with a PDF with these explanations, and with mermory size considerations, just to help the users.

Many thanks in advance! And congratulations for your great work!

Julián da Silva

RE: Derived work license questions

Posted by Richard on November 2, 2009
I think you have all the points covered so everything is ok, although I would questions why you want to use a different name. Don't forget to include the copyright notice too!

Contact me directly (r dot barry [at] freertos.org) to discuss the tests you wish to run.


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

Copyright (C) 2004-2010 Richard Barry. Copyright (C) 2010-2016 Real Time Engineers Ltd.
Any and all data, files, source code, html content and documentation included in the FreeRTOSTM distribution or available on this site are the exclusive property of Real Time Engineers Ltd.. See the files license.txt (included in the distribution) and this copyright notice for more information. FreeRTOSTM and FreeRTOS.orgTM are trade marks of Real Time Engineers Ltd.

Latest News:

FreeRTOS V9.0.0 is now available for download.

Free TCP/IP and file system demos for the RTOS

Sponsored Links

⇓ Now With No Code Size Limit! ⇓
⇑ Free Download Without Registering ⇑

FreeRTOS Partners

ARM Connected RTOS partner for all ARM microcontroller cores

Renesas Electronics Gold Alliance RTOS Partner.jpg

Microchip Premier RTOS Partner

RTOS partner of NXP for all NXP ARM microcontrollers

Atmel RTOS partner supporting ARM Cortex-M3 and AVR32 microcontrollers

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

Xilinx Microblaze and Zynq partner

Silicon Labs low power RTOS partner

Altera RTOS partner for Nios II and Cortex-A9 SoC

Freescale Alliance RTOS Member supporting ARM and ColdFire microcontrollers

Infineon ARM Cortex-M microcontrollers

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

Cypress RTOS partner supporting ARM Cortex-M3

Fujitsu RTOS partner supporting ARM Cortex-M3 and FM3

Microsemi (previously Actel) RTOS partner supporting ARM Cortex-M3

Atollic Partner

IAR Partner

Keil ARM Partner

Embedded Artists