TouchGFX : FreeRTOS Queues for controlling LED from TouchGFX Button and Hardware Button to TouchGFX Text Area Update:

[Karan 123]

Hi,

I am working on below setup:

Software Tool Chain:

STM32CubeMX 5.6.0

STM32CubeIDE 1.3.0

TouchGFX 4.13.0 Designer

Application Template STM32F746G Discovery Kit v3.0.1

I am trying to do send/receive messages with Message Queues.

1) From TouchGFX Toggle Button to LED.

2) From Hardware Button to Text Area

as per below thread.

https://community.st.com/s/question/0D50X0000AU4zodSQB/interfacing-with-hardware-in-touchgfx-applications

Program Successfully Build . But Still not succeeded to Work on Actual Hardware.

1) From TouchGFX Toggle Button to LED.

LED is not OFF/ON with TouchGFX Toggle Button

2) From Hardware Button to Text Area Update

HardFault and/or MemManage_Handler

Because I have changed priorities and Heap .

 Can anybody look attachment ? Guide me What needs to be correct ?

To solve the problem .

--

Karan

[Martin KJELDSEN]

This is not due to a bug, it's a hardware/OS configuration issue - we just have to find it. The GUI isn't even in play yet here.

[Martin KJELDSEN]

To make things a bit easier, maybe check out some of the CubeFW GPIO examples or even the example i made for the "Integratiing UI and Hardware" webinar in the top sticky.

E.g. start by sampling directly in the GUI Task ( Model::tick() ) before FreeRTOS is in play. Then move on to interrupt based / FreeRTOS Queue based.

/Martin

[Karan 123]

Hi,

@Martin KJELDSEN (ST Employee) Thanks for update ..

The below code without TouchGFX Works well..

while(1) 
 { 
	if ( HAL_GPIO_ReadPin (BUTTON_GPIO_Port, BUTTON_Pin) == GPIO_PIN_SET ) 
	 {
 		 HAL_GPIO_TogglePin(LED_GPIO_Port , LED_Pin) ; 
        	 HAL_Delay(300) ; 
		 printf("HELLO \r\n") ; 
            } 
  }

But Code worked on simulator Updating TextArea WildCard Perfectly ..

I have made some changes/correction in code attached at Msg #1.

After doing some experiments cause to Fault Situations.

 ( xQueueReceive(ButtonQueueHandle, &msg , (TickType_t)10) == pdTRUE)

Please Find updated files as works on simulator and touchgfx simulated short video..

as below method.. as per you webinar "Integratiing UI and Hardware"

Please Find attachment ..

--

Karan

[Karan 123]

These are updated files here.

[Karan 123]

Hi,

@Martin KJELDSEN (ST Employee) ..

Please Let me know . How to sort out this problem ..?

--

Karan

[HP · Accepted solution]

I think there is an error in your model.cpp

I'm referring to my own example in this video: https://www.youtube.com/watch?v=majcfxr3u2E

The model looks something like this:

extern "C"
{
	xQueueHandle messageQ;
}
 
Model::Model() : modelListener(0)
{
	messageQ = xQueueGenericCreate(1,1,0);
}

So I can see two things different in your setup:

1. you have a osMessageQId instead of a xQueueHandle. I have no idea if they are actually the same type.
2. in modelListener I create a queue and assign the handle to it. You don't have that call and that could be why the hardfault occurs?

Lastly you wait 10 ticks for your messages. I don't think that it is needed or it helps anything. I can't recall if the waiting is a blocking call or not. If it is you have reduced your framerate a bit.

[Karan 123]

@HP (Community Member)

Many of Thanks for your time , code and link.

1) The Code successfully build .. Without any issue(s) and error(s).

2) From TouchGFX Button to LED .. Works well on Simulator and Board as well .

3) From Hardware Button to TouchGFX TextArea WildCard.. Works well on Simulator but NOT on Board ( Hardfault ) .

I have Listen Integratiing UI and Hardware" webinar from @Martin KJELDSEN (ST Employee) ..

Technically, Your approach in youtube video and mine approach as same (I think).

Did you run your code with Hardware Button on STM32746G-DISCO Board.?

--

Karan

[HP]

well, I didn't use a button but I did use a queue. your button sampling code looks fine.

Did you try and change the code with my suggestions?

The simulator and hardware is similar but not completely similar so there's a pitfall.

Looking at your model..

walk through it with me.. if you get a message you call btnPressed()

Inside that method you do what? I think you intend to call the 'IncrementUpdate' method in the presenter, but you don't. you call the btnPressed() again? is that right?

[Karan 123]

Here are Code snapshots..

Please check updated One

The I did also use xQueueReceive(LEDQueueHandle , &led_msg , 0) worked well on Hardware LED in same (this) application ..

My ADC , UART code working fine with Semaphore (without Queue).

I will check your code suggestion tomorrow.

Thanks

--

Karan

[Karan 123]

Hi,

@HP (Community Member)

This method works.. Thanks for that ...

@Martin KJELDSEN (ST Employee) 

1) Is it mandatory to create "Queue" inside the Model::Model() in Model.c ?

2) If Yes, Why cmsis syntax complied but same HardFault ...

 osMessageQDef(ButtonQueue, 1, uint16_t);

 ButtonQueueHandle = osMessageCreate(osMessageQ(ButtonQueue), NULL);

Or Any other Issue .. Please Update..

Any Way Thanks..

--

Karan