Quality RTOS & Embedded Software

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


FreeRTOS with libraries...

Posted by dave m on January 25, 2009
I've been building several libraries containing driver code for the microcontrollers I work with frequently. One problem I've encountered is adding FreeRTOS code to the library routines. Since FreeRTOS.h includes FreeRTOSConfig.h, you have to provide _something_ to get the definitions & declarations you need. But FreeRTOSConfig is really a project-specific file: sometimes you need all the OS features, and sometimes you want to leave them out. So it doesn't make sense to have a FreeRTOSConfig.h for library files, which (by definition) are supposed to be useful in all programs.

Is there any commonly-accepted way to deal with this? I guess I could make a library FreeRTOSConfig that just turns on all options, and then if a project includes some library function that calls a FreeRTOS function that isn't enabled by the project Config, you'd know that you have to either work around that library function, or add the FreeRTOS feature. But that still seems pretty crufty. Any better solutions? (It'd be ideal if all of FreeRTOS could be built as a library, but that feels like a LOT of work!)


RE: FreeRTOS with libraries...

Posted by Richard on January 25, 2009
Building in all components should not be a problem because your final binary should only include the functions that are actually used rather than all the functions. You still have to fix things like the number of available priorities, etc.

SafeRTOS is much simpler to build into a library as everything is statically declared within the application, not within the kernel.


[ 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