Quality RTOS & Embedded Software

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


Ethernet dead when I use vTaskList

Posted by Paul on July 13, 2007
Hi all,

When I use vTaskList(); in one task , my lwip task will not work .
I just wrote the following :

signed char taskbuffer[1024]

and in FreeRTOSConfig.h :

#define INCLUDE_vTaskPrioritySet1
#define INCLUDE_uxTaskPriorityGet1
#define INCLUDE_vTaskDelete1
#define INCLUDE_vTaskCleanUpResources0
#define INCLUDE_vTaskSuspend1
#define INCLUDE_vTaskDelayUntil1
#define INCLUDE_vTaskDelay1

I just want to see all tasks status .
Does anyone can tell me how to use vTaskList in application ?

RE: Ethernet dead when I use vTaskList

Posted by Ricky on July 13, 2007
This works for me:

char taskbuffer[1024];

void DisplayTaskInfo (void) {
___vTaskList (taskbuffer);
___printf (
_________"Task Name_____State__Priority__Free___Number\r\n"
___printf (taskbuffer);

RE: Ethernet dead when I use vTaskList

Posted by Dave on July 13, 2007
If you are having problems with just this function then most likely it is a stack overflow as this is the one place where sprintf() is used which can use a lot of stack depending on the implementation. Check the amount of free stack and increase the stack allocated to the task calling vTaskList if needed.

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

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

Latest News

FreeRTOS v10.2.0 is available for immediate download. MIT licensed, and including RISC-V and ARMv8-M (Cortex-M33) demos.

NXP tweet showing LPC5500 (ARMv8-M Cortex-M33) running FreeRTOS.

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

Cadence Tensilica Cortes

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