Touch GFX #4. Send data to UI || Sampling from another task || Gauge || Animation

[@alexanderkvashin]

I am getting error ../TouchGFX/gui/include/gui/model/ModelListener.hpp:9: undefined reference to `vtable for ModelListener' and ../TouchGFX/gui/include/gui/model/ModelListener.hpp:11: undefined reference to `vtable for ModelListener' on the linker stage... what can be wrong?
I use version 4.22.

[@ControllersTech]

In the modelListerner.hpp file, remove the keyword “virtual” from line 11.

[@alexanderkvashin]

@@ControllersTech thank you for so fast reply! I have deleted virtual from destructor, but it did not help. This is the code now (to be able to count line number):
#ifndef MODELLISTENER_HPP
#define MODELLISTENER_HPP
#include
class ModelListener
{
public:
ModelListener() : model(0) {}

~ModelListener() {}
void bind(Model* m)
{
model = m;
}
virtual void Set_data_variable(unsigned char data_variable);
protected:
Model* model;
};
#endif // MODELLISTENER_HPP

[@ControllersTech]

@alexanderkvashin ok don’t delete it from line 11. Put it back there.
The function set_data_variable…. Delete the virtual from there.

[@alexanderkvashin]

@@ControllersTech I put it back and deleted virtual from function set_data_variable, now I got linker error pointing on Model.c where I issue it:
../TouchGFX/gui/src/model/Model.cpp:20: undefined reference to `ModelListener::Set_data_variable(unsigned char)'

[@ControllersTech]

Define like this void Set_data_variable (unsigned char data_variable) {}

[@hosseinnhk2684]

In reading ADC with DMA, the code works only if I call the osMessaging functions inside the startAdctsk function, and if I call them inside HAL_ADC_ConvCpltCallback the display doesn't work, do you have any idea about this issue?

[@kubsztal1392]

How did u connect the potentiometer? And what is the max voltage we can send to ADC?

[@ControllersTech]

Connect output pin from potentiometer to the adc pin.
Regarding max voltage, it depends on the VRef. Check your MCUs datasheet.

[@arekkk1224]

is there any alternative for modelListener for multi screen app?

[@027_lakshaynegi6]

Can I use a camera module like ov5640 and play its data on the screen?

[@ControllersTech]

Yes

[@Slemi]

I wish you could share the images for animation, so that we can follow tutorial to the dot. :)

[@ControllersTech]

Download the code from the link in the description. Then look into the assets folder.

[@Slemi]

@@ControllersTech Thank you! I found it now. For anyone else that might need this, the assests is inside TouchGFX folder.

[@lamle4390]

Hi sir, How can I run rtos with ili9341 lcd

[@ControllersTech]

What you mean ?

[@lamle4390]

@@ControllersTech Hi sir, I meant when using ili9341 lcd I have 2 functions MX_TouchGFX_Process() and touchgfxSignalVSync(), I don't know where to put them in

[@ControllersTech]

th-cam.com/video/suMytEyQTP4/w-d-xo.html

[@lamle4390]

@@ControllersTech sir, but this video is not about using rtos

[@victorrodriguez3991]

Hola, he seguido tus videos, pero estos no funcionan, tengo una placa NUCLEO-F767zi y tu misma pantalla, pero tengo duda, como activo en la funcion main.c la vista en la pantalla, lo tengo:
while (1)
{
if ( Touch_GotATouch(0))
touchgfxSignalVSync();
/* USER CODE END WHILE */
MX_TouchGFX_Process();
}
en el while(1) del main.c pero estos no se activan... que deberia hacer? ... si alguien puede ayudar en esto.. gracias y te felicito por tus videos.

[@nielspaulin2647]

AS USUAL, VERY EVCELLENT VIDEO.

[@raer7844]

İt's super . Could you share with us 10.1 LCD screen how is it work by touch gfx . Thank you

[@tszulpinedo757]

Está súper increíble. Ojalá pueda hacer uno con estados lógicos con y sin interrupciones, desde pulsadores u otros circuitos como transistores en modo switch.

[@DaHo-ri8mp]

Hello Sir, thank you very much for this greats video serie. Do you know why this is not working ?
touchgfx::Image Images[7];
Images[0] = Image_1;
Images[1] = Image_2;
Images[2] = Image_3;
Images[3] = Image_4;
Images[4] = Image_5;
Images[5] = Image_6;
Images[6] = Image_7;
Int i=1;
Images[i].setVisible(true);
Images[i].invalidate();

[@sergbo3114]

Dont see any reason for making buttonValue and adcValue global variables(in main.cpp). Global variables are evil.

[@vishvanathdoijad]

Its work cool

[@rvy]

AMOGUS

[@spanksy_]

amongus