03 FreeRTOS Tutorial: Creating and Deleting task

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[learnpracticalprogrammingl]

excellent tutorial too much practical teacher should be like him

[ferdok]

Thank you very much for this work. This is my first look over operating systems at all. This series of lessons gave me a lot of answers that i need for my project. I want to cross two UARTs on STM32F103. On the first i will connect GPS and on the second i will connect bluetooth HC06. Befor starting of transmittion throw the bluetooth i need to change the refresh rate of the GPS. For this task i will use information from lesson "04 FreeRTOS Tutorial: Handling Interrupt" and "07 FreeRTOS Tutorial: Queues part1". I have some thing that i do not understand. When we exit from task? It is obvious that we do not loop in "osDelay()", but in every task we have a infinit loop. Again thank you for your time.

[ya]

How can someone hate that!! Excellent job.

[partha]

Thank you very much for the tutorials Rahman!

[prateekjoshi]

Can you please instruct on how to use the SEGGER SWO viewer?

[AmineKouki]

Really great tutorials. Would be cool to extend them with some more details on task priority and stacks size. Great work.

[ahmeterdem]

Nice video. One thing is bothering me though. Why did you pass the "pass" variable directly rather than taking the address of it? Since you are dealing with pointers I suppose that the parameter of xTaskCreate is for passing struct/builtin-type instance as pass-by-pointer. Then you cast it back to (int*) but you use it as an integer? I can see how this works but I think it is not a nice practice! Since you are using a pointer (an argument dedicated to an address in the memory) as an integer variable, no?

[acd-projectdemovideos]

Very useful tutorial for beginners. can you explain how to integrate Segger J-Link SWO viewer with Atolic Studio as a debugger tool?

[muhammadsalmangalileo]

at xTaskCreate with pvParameters, i'm quite sure we're supposed to pass pointer to this variable, not the value itself.
what i think was right:
xTaskCreate(myTask1, "Task 1", 200, (void*) &pass, tskIDLE_PRIORITY, &myTaskHadle)
then on the task:
int* count = (int*) p;

[rafalzasada]

7:03 What about compiler warning? I can't get rid of it.

[amrtcpp]

Hi dear,
Thank you for this nice videos, can you please explain the FreeRTOS setup on the chip?
I'M a beginner and need to understand the setup process then after installing it then starts creat project,
I'm using LPC 1758 with MCUexpresso ID.

[shankerpandit]

Just for the curiosity, could you please tell me what HW u have connected through this IDE ? if possible please make a video for HW connection and flashing procedure.

Thanks .

[andreitolkachev]

How can I do this without having the physical device? Any way to emulate it? J-Link is requiring a USB connection or an IP for a remote connection which I don't have...

[EdwinFairchild]

I dont understand if all you did was move this files, but when i run it, my code gets caught in an empty handler function for pendSV

[ajaykumar-rvgp]

Getting error like undefined reference for sTaskCreate ....I have added FreeRTOS.h and task.h and I have included directories also

[bebooooreda]

For those who have error : undefined
reference to `vApplicationIdleHook'

This error is complaining that you have configUSE_IDLE_HOOK set to 1 in FreeRTOSConfig.h, but have not defined a function called vApplicationIdleHook() in your code.

Simple solution :
set configUSE_IDLE_HOOK to 0 in FreeRTOSConfig.h

reference

[mohamadmansoor]

did you use the pointer to integer with no de-referencing? how!

[ahamedm.h.a]

I am getting an error for the pointer can you help me out?

[mohanpasumarthy]

i am gettng 3 errors in ATmelStudio IDE
1.id returned 1 exit status
2.recipe for target '<project_name>.elf' failed
3.undefined reference to 'vApplicationIdleHook' anyone help me get rid of these errors.

[IrfanKhan-vuln]

Iam getting error: " undefined reference to ' xtaskcreate'
What to do to resolve this .