STM32-Nucleo - Keil 5 IDE with CubeMX: Tutorial 9 - FreeRTOS

[@JerryHoward88]

I love your tutorials. They are so clear and straightforward!

[@SciHeartJourney]

Thank you! I never realized RTOS was so easy to use before, or how useful it is. This video was excellent!

[@mohdrafiqrahman]

MaaShaa'aAllaah, you simplified what would normally take a noobie 2 weeks to grasp in mere 13 minutes... JazaakaAllaahu khairal Jazaa'

[@mutexembedded2206]

Rafiq Rahman Thanks Rafiq

[@hoopfreaks3138]

Your the greatest! Best STM tutorials in the entire web!!

[@mutexembedded2206]

Thanks.. enjoy

[@santhoshamuduri1701]

It is really awesome video to explain how mutex works

[@jonathanrodriguez8219]

Thanks You!!! this has really helped me a lot!!! it's always good to share your knowledge to the community.

[@XTRAXPARTS]

Very informative Thanks Yaqoob. proud of you sir.

[@aidars5196]

Amazing Tutorials. I use nucleo-F302R8 and only change a pinouts of button to PC_13

[@royperkins28]

Great Job Thanks !

[@Gkvhkbt]

Very good about this Nucleo tutorial! I got the same card :) I like your fast and qick tutorial "First then, then then and now the results". Perfect! Will you uppload more for the Nucleo cards?

[@mutexembedded2206]

Hi Dan, You can still implement the STM32F4 tutorials on the Nucleo as long as it has the same peripheral. Good Luck

[@mauropiccoto]

You are an awesome teacher!!! Thanks.

[@JerryHoward88]

I have a Nucleo G071RB board and interestingly enough it performed the two Uart_Transmit functions fine with the 1000 ms delay. It never got into trouble, even before I added the mutex take/give. Perhaps that hardware is faster or somehow handles the simultaneous transmissions better.

[@mutexembedded2206]

Hi Jerry, Yes, speed does affect thread switching timing. Mutex ensures access is controlled for larger software with 10s of tasks.

[@Ahmad-gn1pd]

Really you are great thank you 🌹🌹 Could you make more videos of freertos and cubemx

[@sadashivkamath]

Good one on FreeRTOS with STM32.! Some observations:-@ time stamp 7:35: Text overlap don't happen if you make time-out of 5ms @ time stamp 9:10: Text overlap happens if you make time-out of 1ms..Any better ways to present need of xSemaphoreTake/xSemaphoreGive with apple to Apple (one-to-one) comparison??

[@ESEben10]

Thank you very much for the video. Iam trying to use the notification but my program gets stuck in xTaskNotify . Could you give a tip about how to solve it?

[@mohammadal-dossari299]

Hi, Thank you for your tutorials. If I use "cooperative mode" do I need to use Mutex feature?

[@yj119]

Hello I have a question. When I didn't change any clock setting, it only prints out "Hello from Thread" without number and . But if I change the HCLK to 2MHZ, it prints out as intended. Can you explain why this is so?

[@gnanaguruganesan2762]

It's been a great and brief collection of STM32-Nucleo applications. I'm facing an issue when trying FreeRTOS application, as its creating a lot of errors in Keil-MDK (version 5.37.0) from STM32CubeMX (version 6.4.0). Some are stating STM32CubeMX FreeRTOS port won't work in Keil-MDK, is it so?

[@nidhalhaddad9175]

You are my savor tyyyyyy

[@jo5huajohn]

Hi, I found your videos very informative and useful, are you going to continue with the nucleo board videos?

[@mutexembedded2206]

Hi, I do keep using the Nucleo in my generic tutorial. Have a tutorial to suggest with nucleo.

[@wakizham6561]

hello.. u have tutorial for using NUCLEO-F302R8 with X-NUCLEO-IHM07M1? I dont know how to program coding for run motor PMSM

[@sreeneshtk6208]

Thank you Sir Awesome video tutorial

[@ocelot0991]

Hi Sir, first of all thank you for this series on STM32 microcontrollers. I was wondering what is your opinion about the full compatibility between FreeRTOS and the HAL library. I am not experienced with this level of microcontroller programming, thus I'm having some difficulties. I would like to design a system able to transmit CAN BUS messages with a certain Cycle time while doing other computational tasks. I understand that to achieve this goal a scheduling technique is required. I tried to build a simple cooperative scheduler starting from some examples on the web, but i think this technique doesn't fit well my requirements. Thus, a preemptive scheduler like the one in Free RTOS could be the solution. The problem is that looking around on the web, there are lots of threads about issues in getting work correctly some HAL functions within the FreeRTOS framework, due to the management of the SysTick timer. What is your experience on that ? Thank you.

[@mutexembedded2206]

ocelot0991 Hi, I have developed many software applications with HAL library and FreeRTOS for clients.. This is never an issue, it depends on the peripheral you're using. And you can always replace Systick delay and counter with Kernel timer. But I usually don't do that; I always tend to use HAL interrupts and DMA instead of Polling for a peripheral when using RTOS.

[@ocelot0991]

Hi, did you develop software applications with bxCan peripheral managed with hal_can driver within FreeRTOS ? Are you planning to do a tutorial on this peripheral like you did within the series ? Thank you

[@mutexembedded2206]

ocelot0991 No not with this peripheral yet. Possibly in near future.

[@Electheo]

Very helpful, thanks!

[@mehmettopuz3427]

Thank you for tutorial videos. I have a question about FREERTOS. How can i use interrupt and RTOS together.

[@mutexembedded2206]

The same way you would use them normally.. just need to be careful not to do any processing in the interupt handler except sending a Notify from ISR or any operation allowable from ISR. Just google the word FreeRTOS from ISR.. You will get many example on that. Good luck

[@kambata21]

Hello, Great videos can i ask where to find solething like a pdf or something in wich the functions that you are using are described. There is a great refrence manual for the HAL and LL libs but i cannot find such thing for the middlewares.

[@joshsavage8659]

Amazing tutorial! Thank you

[@felipekunzler9618]

why change the SYS Timebase Source to a peripheral timer?

[@subithrajapandian3360]

Hi, Thank you for the video. Is this the same for CMSIS RTOS v2

[@VishalVerma-xw9wb]

can you post a tutorial on a little in-depth on RTOS and on CAN protocol ??

[@xilinx80]

Thanks for the great tutorial...

[@nidhalhaddad9175]

Mohammed Yakoob prince of all Sayan ( i mean embedded software engineer)

[@iotsky1447]

thanks for your video. i tried to run it and that's ok but could you give recommend if oStask is needly delay(10s) and had better use oSdelay? Please! Explain to me why if i use Hal_Delay() this's oStask, the Uart of one other oStask will fail? (i just use uart 1 and blinking led). thanks!

[@mutexembedded2206]

IoT sky Hi mate, So, you have 2 tasks one running UART and one just an LED? Does using osDelay makes it work?

[@hainguyenvan7244]

Hi..my project had very task, i had 2 task to test it but when i use hal_delay it's not ok. I mean if use Osdelay in the long time is this problem? I'm fisher i hope you would like help me.

[@mutexembedded2206]

Hi, Yes, osDelay is the right one to use. HAL_Delay uses the Systick timer, wheres osDelay uses the RTOS Kernel ticks.

[@hainguyenvan7244]

MYaqoobEmbedded Thanks for your support...have nice day (-:)

[@raysoftproductions4414]

Hi, I am having trouble printing stuff to the terminal froma thread, do you know what may be the issue?, the LED is blinking but the commant to transmit via uart seems like its not being carried out because i am not seeing the Hello from Thread1 string, in fact there is nothing coming to the terminal

[@mohammadal-dossari299]

see his printf tutorial.

[@paulf1303]

Hi. xSemaphoreTake and xSemaphoreGive functions are not recognized. Does anyone encountered the same problem?

[@mutexembedded2206]

Hi, CMSIS version. I will update all these tutorials soon

[@paulf1303]

@@mutexembedded2206 Thank you for reply.

[@huseyinkoc7461]

I realized that when we increase timeout, there is no problem? so why we use mutex?

[@mutexembedded2206]

Hi, Mutex is meant to restrict access to shared resources.

[@unwatchable.]

A simple and perfect tutorial like always. very helpful always. one problem , buy a new cam or wide screen laptop and use better recording software. thanks. otherwise technically it is flawless. best wishes. brother . Regards.Ahmed

[@sarojflame]

thanks got a great help

[@spiralsheepdoll]

I am trying this with SW4STM32 and CubeMX 5.1.0 on mac. Will only run in debugger and I see no serial out only echo if input from term . LED blinks and thread 1 is getting called. Think something may be pre-empting serial out. or there is something not set. Clear pins clears SWO TMS/TCK re-enabling no diff. Run crash Error: Invalid command argument image.base_address option value ('video.elf verify') is not valid

[@spiralsheepdoll]

part solved no spaces allowed in .ioc project name. Now runs but still no data on serial out only LED blink. Using Nucleo F401 and SWO

[@spiralsheepdoll]

Problem solved, in the other tutorial it was noted there are solder bridges for using the serial, these had been modified for a different project.

[@naasikhendricks1501]

Can we use the DMA mode in the Rtos and External Crystal settings?

[@mutexembedded2206]

Yes

[@naasikhendricks1501]

How does this change?

[@mutexembedded2206]

@@naasikhendricks1501 might need to use UART complete callback to notify a Thread for end of Transmit and Receive.

[@naasikhendricks1501]

Shukran. Callback is always a need for DMA. I have uart, i2c, spi, SDIO(large stack and Heap size) running DMA. Will the circular mode be selected or normal because of threads?

[@Tony770jr]

Are you going to switch to TrueStudio since it's free now and by STMicro?

[@mutexembedded2206]

Tony770jr Possibly

[@rajputraghu10]

Thank u so much.

[@alterguy4327]

I have a Simple STM board,can i use it

[@mutexembedded2206]

Electro Geek Yes, you can.

[@Kirranbabu]

My keil ide closes as soon as I press Load button. Someone help me out

[@abdulkadirmuhendis2272]

So your mutex embedded as a company belong to this tutorial ;)

[@akramabbassi9416]

excelent corse GOOD LUCK ! try UDEMY !

[@aslanoymak6662]

super

[@mutexembedded2206]

Aslan OYMAK Thnx :)

[@mohamadali6174]

Good

[@MrRonychakraborty]

Good Tutorial , Just talk little slow and Pronounce Little Clearly. :) Thanks

[@t966rt]

txData[] = "bla bla...."; sizeof(txData);

[@mutexembedded2206]

Valeriy Novikov I suppose you're solving my size counting dilemma.. Thanks anyway

[@t966rt]

I will be happy if this will help you! :)))

[@mutexembedded2206]

Valeriy Novikov Hi Navikov, A reminder is always helpful.. I usually avoid using 'sizeof'.. because my array size is often larger than the string I will send.. char myArr[100]; sprintf(myArr, "hello world"); Transmit(myArr, strlen(myArr)); Thanks :)

[@VenkateshDhara333]

is it possible to run some code in main program and trigger thread when ever needed and close the thread

[@mutexembedded2206]

Venkatesh Dhara Yes it is possible