Quality RTOS & Embedded Software

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


AT90CAN128 and IAR

Posted by Nobody/Anonymous on June 8, 2006
I am working with AT90CAN128 and IAR and external memory. The AT90CAN128 has some bug on "Miss-functioning when code stack is in XRAM" so I must put the heap only in internal RAM. How can I do that in IAR and what variables location I need to change?
Thanks for some help!

RE: AT90CAN128 and IAR

Posted by Nobody/Anonymous on June 8, 2006
In GCC you can define the section that any data item goes in using an attribute ((section...)) style. Some compilers you can do the same using a #pragma. I expect you will have to setup a section in your linker for you different memory areas (probably already so) then use a pragma or attribute on the data to say which section it should go in. Can IAR do this?

RE: AT90CAN128 and IAR

Posted by Nobody/Anonymous on June 8, 2006
Yes, I think that is possible.
Due to the AT90CAN128 problem, I have another question:

-I use queues of some hundreds bytes. These queues live in the heap.

-There is someway to get out the queses from heap and put them in the exteranl memory?

-If the AT90CAN128 don't like to have the SP outside internal RAM that can be a problem when I move the queues to external RAM?

[ 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