Quality RTOS & Embedded Software

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


help with CSTACK

Posted by avi asaf on January 25, 2009
hello all

I am a new user of the FreeRtos OS and I have already ported to AT91SAM7S256 device of atmel

I Have a question:

while I am running my project I have got CSTACK error (during run-time):

The stack pointer for stack 'CSTACK' (currently 0x0020A4C8) is outside the stack range (0x00208000 to 0x00209000)

does any one know what is the best configuration for (stack, ram and rom configuration) that specific device?



RE: help with CSTACK

Posted by Richard on January 25, 2009
This warning is telling you that the stack pointer points outside the stack memory declared within the linker script - but this is expected because tasks use a stack that is allocated from the heap and not the one defined by the linker. It is normal to get this warning and quite safe to ignore it.


[ 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.


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