Quality RTOS & Embedded Software

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


Loading

xPendingReadyList help?

Posted by a_shawky on March 25, 2007
Dear All,

Can you kindly tell me why when the schedular is suspended the recent readied task is put in xPendingReadyList list not in the ready queue directly?

and what will happen if we put it directly on the ready queue?

best regards

ashawky

RE: xPendingReadyList help?

Posted by Nobody/Anonymous on March 25, 2007
When the scheduler is suspended a context switch must not be performed but as interrupts remain enabled it is possible that a task is unblocked. A task that unblocks when the scheduler is suspended is therefore placed into the pending ready list until such time that the scheduler is unsuspended. When the scheduler is unsuspended any 'pending' ready tasks are moved the the ready state.

Dave.


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


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

Latest News

Version 10.1.0 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.


Careers

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

Renesas

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