LED BLINKING in EMBEDDED C

[arunoday]

I built a project in STM32F411E-DISC . project is built successfully and also  when we debugged no issue is found ,but after debugging only ORANGE LED is toggling rest 3 LED is not toggling . kindly help me to resolve this issue .kindly  find for code and microcontroller. 

[SofLit · Accepted solution]

Hello,

Are you sure you’re configuring the right GPIOs?

Enabled RCC clock for the GPIO ports?

PS: please in next time either you put the source code in the comment using </> button or simply attach it.

Please don't attach code screenshots.

Thank you.

[arunoday]

where is RCC clock for the GPIO ports in CUBEIDE and how to enable this 

[SofLit]

Hello,

You need to use CubeMx (in CubeIDE) to configure the peripherals and generate the corresponding code.

I've attached a project running on F411-DISCO board toggling the 4 LEDs. I didn't test it but should work.

[hayat]

Always use CubeMx to generate a code template.

This does the necessary initialization of the GPIOs including the clock enabling.

Thereafter, simply one line code to toggle LEDs.

[arunoday]

Your attached project running fine and all LED is toggling but , what is the issue in my code . can you please help me.

[hayat]

Apparently, you are running multiple tasks and using the HAL_Delay() function.

This creates a problem. The solution is to change the Time Base from sysTick to another Timer.

The SysTick is a special timer in most ARM processors that’s generally reserved for operating system purposes. By default, SysTick will be used for things like HAL_Delay() and HAL_GetTick(). As a result, the STM32 HAL framework gives SysTick a very high priority. However, FreeRTOS needs SysTick for its scheduler, and it requires SysTick to be a much lower priority. Therefore, a quick workaround is to use a Timer as a Time-base source in the cases of freeRTOS.

You can adapt the example from the attached tutorial material.

Refer to Page 22.

[arunoday]

why  code generation section is blank . i build 2 project but still in both project code generation section is blink , how to resolve this issue 

[hayat]

refer to the snapshot, and Click the Right-Top Corner to generate the Code.

The one you have circled up is to setup the parameters.

[hayat]

Alternatively,

Refer to the attached file, 

follow the steps from page 38.