STM32F746G-DISCO, TouchGFX

[AD�?b]

Hi

I made a timer. I send seconds and minutes to Model and to main.c.

I want seconds and minutes to be visible in main.c.

Now they are only visible after changing the screen.

What I have to do?

best regards

Andrzej

[MM..1]

Hi Andrzej,

minutes and seconds is special, maybe connected to RTC, but any variables created in Model can be as extern accessible in main or any place, where extern is included.

I mean you now create it in screen, this dont work when you use more as one screen , because this variables exist only while screen is showed.

And when you plan your timer count alltime, then update values must be in Model tick, not screen handletick.

[AD�?b]

That's what I have done and it doesn't work.

What to improve?

#ifndef MODEL_HPP
#define MODEL_HPP
 
#include <touchgfx/hal/types.hpp>
 
#include "stdint.h"
 
class ModelListener;
 
class Model
{
public:
	Model();
 
	void bind(ModelListener *listener)
	{
		modelListener = listener;
	}
 
	void tick();
 
	void saveMinCurrent(uint8_t saveMinCurrent)
	{
		min_current = saveMinCurrent;
	}
 
	void saveSecCurrent(uint8_t saveSecCurrent)
	{
		sec_current = saveSecCurrent;
	}
 
	uint8_t getSecCurrent()
	{
		return sec_current;
	}
 
protected:
 
	uint8_t min_current;
	uint8_t sec_current;
	
	ModelListener *modelListener;
};
 
#endif // MODEL_HPP

#include <gui/model/Model.hpp>
#include <gui/model/ModelListener.hpp>
 
#include "FreeRTOS.h"
#include "queue.h"
#include "task.h"
 
extern uint8_t min_current;
extern uint8_t sec_current;
 
extern "C"
{
xQueueHandle messageQ4;
xQueueHandle messageQ5;
}
 
Model::Model() :
		modelListener(0)
{
	
	messageQ4 = xQueueGenericCreate(1, 1, 0);
	messageQ5 = xQueueGenericCreate(1, 1, 0);
	
}
 
void Model::tick()
{
	
	xQueueSend(messageQ4, &min_current, 0); // send minutes current
	xQueueSend(messageQ5, &sec_current, 0); // send secons current
 
}
 
 

/* USER CODE BEGIN 4 */
 
uint8_t min_current;
uint8_t sec_current;
 
xQueueHandle messageQ4;
xQueueHandle messageQ5;
 
void StartSecondTask(void const *argument)
{
	for (;;)
	{
receive seconds
		if(xQueueReceive(messageQ4, &min_current, 0) == pdTRUE); // receive minutes current
		if(xQueueReceive(messageQ5, &sec_current, 0) == pdTRUE); // receive seconds current
 
		osDelay(1);
	}
 
}
/* USER CODE END 4 */

[MM..1]

No you dont uderstand me. I explain use simple shared memory variables.

Your code try use queues , but this is not strictly necessary on one core multithread.

Simply create one header file sharedvars.h

extern uint8_t min_current;
extern uint8_t sec_current;

then in Model.hpp remove protected and too functions get save...

and in Model.cpp

#include <gui/model/Model.hpp>
#include <gui/model/ModelListener.hpp>
 
#include "FreeRTOS.h"
#include "queue.h"
#include "task.h"
 
uint8_t min_current;
uint8_t sec_current;
 
Model::Model() :
		modelListener(0)
{
	
}
 
void Model::tick()
{
// do here what you need with sec and min for example call screen update methods
	
}
 

in main or other task.c

#include "sharedvars.h"
 
void StartSecondTask(void const *argument)
{
	for (;;)
	{
//do what you need with sec and min for example read RTC and write to sec_current...
 sec_current = 22;
		osDelay(1);
	}
 
}

[AD�?b]

Thanks for the hint.

Take into account that I am not very advanced with TouchGFX and C ++. So far I have worked at C.

Tomorrow I will analyze what you wrote.

I'll create a simple program and send it all.

[MM..1]

replace attached files and try continue

[AD�?b]

He

I figured out the problem. I make the clock in main.c and send it to the screen.

best regards

Andrzej

[AD�?b]

Thank You