Problem while sending a LIN frame from touchGFX

[Oussama_Baklouti]

I tried to send a LIN frame by creating a task .
The code didn't conatin any error but the frame wasn't sent 
What could be the problem ? 
This is my project 

[mƎALLEm]

Hello,

This is not TouchGFX subject and I'm wondering why you start with a complex example to debug LIN while you can start with a very simple one?

Start with a simple LIN project and debug it before going forward with TouchGFX and FreeRTOS.

 

[Oussama_Baklouti]

I tried a simple LIN project "sending a LIN frame" using an ST board and it worked fine but when i used touchGFX the frame wasn't sent 

 

[mƎALLEm]

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@Oussama_Baklouti wrote:

I tried a simple LIN project "sending a LIN frame" using an ST board and it worked fine but when i used touchGFX the frame wasn't sent 

 

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This statement is important to locate the issue and normally it should said from the beginning ;)

So you have an issue in your GUI programming. I let my TouchGFX colleagues help you.

It's related to this thread: https://community.st.com/t5/stm32-mcus-products/endless-loop-when-running-scb-enabledcache/td-p/710257

[Mohammad MORADI ESFAHANIASL]

Hello @Oussama_Baklouti,

As @mƎALLEm mentioned, there are no custom code for the sendData() function that you have defined for your button. Please refer to the following documentations to learn about communication of TouchGFX with backend.

Backend Communication 

MVP Design Pattern 

Screen Definition 

You can also take a look at the Board Specific Demos available in the TouchGFX Designer, like STM32F746G-Disco Intertask Communication Demo

STM32F476G-Disco Board Specific Demo

I hope this helps you!