Quality RTOS & Embedded Software

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



Posted by Bill Yang on September 5, 2008
Hi, What is different the configMAX_PRIORITIES and configKERNEL_INTERRUPT_PRIORITY? In Cortex_LM3Xxxxx demo, the FreeRTOSConfig.h defines configMAX_PRIORITIES = 5 and configKERNEL_INTERRUPT_PRIORITY = 255. Since the maximum priorities is only 5, why the kernel interrupt priority is 255?
Bill Yang


Posted by Dave on September 6, 2008
Again you are confusing task priority with interrupt priority. Task priorities are related to FreeRTOS and interrupt priorities are a characteristic of the hardware. See http://www.freertos.org/a00109.html

[ Back to the top ]    [ About FreeRTOS ]    [ Sitemap ]    [ ]

Copyright (C) Amazon Web Services, Inc. or its affiliates. All rights reserved.

Latest News

FreeRTOS kernel V10 is available for immediate download. Now MIT licensed.

FreeRTOS Partners

ARM Connected RTOS partner for all ARM microcontroller cores

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