Quality RTOS & Embedded Software

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


NEC 78K0 / ISR functions / linkerscript

Posted by Jonas Poulsen on November 20, 2009

Using NEC 16 bit 78K0R-KG3 (uPD78F1166) 256kb Flash / 12 kb RAM with IAR EW 4.62 and Minicube2 on WinXP SP3.

Note to the NEC 78K0 port:

Due to the design of the interrupt system it is required to place all interrupt functions in the range 0x0000 to 0xFFFF.
Building larger systems will require user so force all interrupt functions, including vTaskIncrementTick() and vTaskSwitchContext(), to be placed in this range using a customized linkerscript - or the project fails to link.

Example for placing ISR functions in normal application space (NOT using the bootcluster 0/1 area):


Add following code before the function declaration:

(hash)pragma location="ISR_CODE"

Jonas, DK

RE: NEC 78K0 / ISR functions / linkerscript

Posted by Richard on November 22, 2009
Thanks for the info - all I need to do is update the documentation page!


[ 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