Quality RTOS & Embedded Software

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




Loading

suspend task

Posted by Braun on February 9, 2012
Hello,

if have a Problem when i suspend more tasks. I work on IAR, EFM32G290F128.

Task1()Priority:3
{
___xTaskCreate(Taks2,...);
___xTaskCreate(Taks3,...);
vTaskSuspend( Task1 );
...
}

Task2()Priority:2
{
___xTaskCreate(Taks4,...);
vTaskSuspend( Task2 );
...
vTaskResume(Task1);
....
}

Task3()Priority:2
{
___xTaskCreate(Taks5,...);
vTaskSuspend( Task3 );
...

vTaskResume(Task1);
...
}

Task4()Priority:1
{
...
vTaskResume(Task2);
...
}
Task5()Priority:1
{
...
vTaskResume(Task3);
}

When I goto vTaskSuspend( Task3 ); then it goes no further.

RE: suspend task

Posted by Braun on February 9, 2012
When I goto vTaskSuspend( Task3 ); then it goes no further, because Task4 and Task5 are not generated.

Why?

RE: suspend task

Posted by Braun on February 9, 2012
Ok now I gernerate Task4 und Task5 but now when i goto vTaskSuspend( Task3 ) it stopped

RE: suspend task

Posted by Richard on February 9, 2012
This is an immensely complex scenario that I don't want to work through, but even if I did there is no way I could possibly tell which task would run when without knowing their priorities.

Regards.

RE: suspend task

Posted by Braun on February 9, 2012
The priorities are:
Task1 ->3
Task2 ->2
Task3 ->2
Task4 ->1
Task5 ->1

Task2 and Task3 are periodic tasks. Tasks2 Periode->100ms, Tasks3 Periode->50ms
Task4 and Task5 will generate and after they are ready they delete themselves.
Task1 ist active when Task2 and Task3 are in blocked state.


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




Copyright (C) 2004-2010 Richard Barry. Copyright (C) 2010-2016 Real Time Engineers Ltd.
Any and all data, files, source code, html content and documentation included in the FreeRTOSTM distribution or available on this site are the exclusive property of Real Time Engineers Ltd.. See the files license.txt (included in the distribution) and this copyright notice for more information. FreeRTOSTM and FreeRTOS.orgTM are trade marks of Real Time Engineers Ltd.

Latest News:

FreeRTOS V9.0.0 is now available for download.


Free TCP/IP and file system demos for the RTOS


Sponsored Links

⇓ Now With No Code Size Limit! ⇓
⇑ Free Download Without Registering ⇑


FreeRTOS Partners

ARM Connected RTOS partner for all ARM microcontroller cores

Renesas Electronics Gold Alliance RTOS Partner.jpg

Microchip Premier RTOS Partner

RTOS partner of NXP for all NXP ARM microcontrollers

Atmel RTOS partner supporting ARM Cortex-M3 and AVR32 microcontrollers

STMicro RTOS partner supporting ARM7, ARM Cortex-M3, ARM Cortex-M4 and ARM Cortex-M0

Xilinx Microblaze and Zynq partner

Silicon Labs low power RTOS partner

Altera RTOS partner for Nios II and Cortex-A9 SoC

Freescale Alliance RTOS Member supporting ARM and ColdFire microcontrollers

Infineon ARM Cortex-M microcontrollers

Texas Instruments MCU Developer Network RTOS partner for ARM and MSP430 microcontrollers

Cypress RTOS partner supporting ARM Cortex-M3

Fujitsu RTOS partner supporting ARM Cortex-M3 and FM3

Microsemi (previously Actel) RTOS partner supporting ARM Cortex-M3

Atollic Partner

IAR Partner

Keil ARM Partner

Embedded Artists