Quality RTOS & Embedded Software

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


Question about functioning of vTaskSuspend and vTaskDelete

Posted by lagavulin18 on July 27, 2014

My task terminate- and suspend function must comply to the following definitions:

Definition: terminate

All resources occupied by the terminated task (including processor) are withdrawn from it. Synchronization variables blocked by the task, however, are not released automatically.

Definition: suspend

The processor allocated to it is withdrawn from it, but not all the other resources occupied by it. A suspended task can only be continued by executing a continue (vTaskResume) statement.

In my opinion I could realize "terminate" with vTaskDelete() and "suspend" with vTaskSuspend(). Any other opinions?

Further reading: 9.2.3/9.2.4 http://www.real-time.de/misc/PEARL90-LanguageReport-V2.2-GI-1998-eng.pdf

Question about functioning of vTaskSuspend and vTaskDelete

Posted by rtel on July 28, 2014

In FreeRTOS, when a task is deleted the memory allocated to the task by the RTOS is automatically freed - but any resources allocated to the task by the application must be freed by the application. When a task is suspended it will not run until another task unsuspends it, but no resource allocation is modified at all.


[ 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