Quality RTOS & Embedded Software

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


porting FreeRTOS to OpenRISC

Posted by Matthias Wientapper on April 17, 2006

I started to port FreeRTOS to the OpenRISC 1200.

I started putting things together based on the Microblaze port, wrote a Makefile and a first test but there is not much really working up to now. (I am currently getting into OpenRISC hacking with respect to exception handling, context saving/restoring and IRQ processing...)

A first release can be found here:

With the help of some hands this kernel port should be really easy as there are basically only three files to edit (port.c, portmacro.h and

Please contact me if you have some ideas or you simply want to help.

Best regards,

RE: porting FreeRTOS to OpenRISC

Posted by Nobody/Anonymous on April 17, 2006
What processor is OpenRISC most similar to? Is there a compiler and simulator that will run on Windoze?

RE: porting FreeRTOS to OpenRISC

Posted by Matthias Wientapper on April 17, 2006
I guess it is somewhere between MIPS and Microblaze regarding the instruction set architecture. And yes, there is a package containing compiler and simulator for cygwin available at opencores.org. The toolchain is based on standard GNU tools (binutils, gcc, gdb).

Best 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.

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.


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


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