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




Loading

Error tolerant version of FreeRTOS?

Posted by Samuel Schweighart on January 15, 2013
Is there a version of RTOS that is more error tolerant? I love the code, but I find that I will make a mistake with a piece of code, and all I get is a hard fault. Is it possible to have the code just return an error if I pass in a bad variable, or don't do something in the right order?
Thanks

RE: Error tolerant version of FreeRTOS?

Posted by Richard on January 15, 2013
Yes, it's called SafeRTOS, but it's not free.

Small code size is a primary objective of FreeRTOS, hence internal error checking is kept to a minimum. Adding complete error checking would make the code much larger and slower.

Safety is the primary objective of SafeRTOS, hence there is (among many other things) complete input parameter validity checking.

Regards.

RE: Error tolerant version of FreeRTOS?

Posted by Samuel Schweighart on January 15, 2013
Hi Richard,

Thank you for the information!

Sam

RE: Error tolerant version of FreeRTOS?

Posted by Samuel Schweighart on January 15, 2013
Hi Richard,

How easy is it to port to SafeRTOS? Is it the same function calls, or is it a totally different RTOS?

Thanks!
Sam

RE: Error tolerant version of FreeRTOS?

Posted by Richard on January 15, 2013
It has the same functional model, but a few API differences, most notable in the two following areas:

1) SafeRTOS does not permit any dynamic memory allocation, so API calls that create an object (task, semaphore,etc.) have to pass in a buffer that will hold the object in an additional parameter. Generally in a safety critical application the buffer will be statically allocated.

2) As function names are prefixed with their return type, functions that are void in FreeRTOS but return error codes in SafeRTOS will have a different a prefix.

SafeRTOS is a fully safety certified product that comes with documentation packs that are qualified to various international safety standards - its price reflects that (really you are paying for the certification rather than the software).

Regards.


[ 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