STM32 MCUs TouchGFX and GUI

Let's say I have STM32H747I-DISCO discovery board. It comes with a 4" touch screen. Is it possible to connect a larger DSI compatible display to it using the connector on board? How should I even search for compatible larger LCD screens? What are the keywords I should use for search? From what I understand, to use hardware accelerated graphics, I should use DSI. Is there a standard for connectors, or for prototypes and experiments I just connect wires separately to the board pins? I guess not all DSI compatible displays are compatible with my board. So, how do you connect for example a larger, higher resolution screen? I've searched for DSI compatible displays online, but I couldn't find much information about the type of the connector they have. Looking at the pictures - I think the connectors look different from the one that comes with the DISCO kit. Are there any adapters for that purpose? How should I search for such adapters?

// Disable spi peripherals __HAL_SPI_DISABLE(&hspi1); __HAL_DMA_DISABLE(&hdma_spi1_tx);   CLEAR_BIT(hspi1.Instance->CR2, SPI_CR2_LDMATX);   /* Clear all flags */ __HAL_DMA_CLEAR_FLAG(&hdma_spi1_tx, (DMA_FLAG_GI1 << (hdma_spi1_tx.ChannelIndex & 0x1cU)));   /* Configure DMA Channel data length */ hdma_spi1_tx.Instance->CNDTR = sizex*sizey; /* Configure DMA Channel destination address */ hdma_spi1_tx.Instance->CPAR = (uint32_t)&hspi1.Instance->DR;   /* Configure DMA Channel source address */ hdma_spi1_tx.Instance->CMAR = (uint32_t)bitmap;   /* Disable the transfer half complete interrupt */ __HAL_DMA_DISABLE_IT(&hdma_spi1_tx, DMA_IT_HT); /* Enable the transfer complete interrupt */ __HAL_DMA_ENABLE_IT(&hdma_spi1_tx, (DMA_IT_TC | DMA_IT_TE));   /* Enable the Peripherals */ __HAL_DMA_ENABLE(&hdma_spi1_tx); __HAL_SPI_ENABLE(&hspi1);   /* Enable Tx DMA Request */ SET_BIT(hspi1.Inst

Hi All,I would like to have button with a text label for instance on different screens which represent voltage say. On the screen there might be a slider and this can change the value of voltage text. Also, present in hardware is a rotary dial this can also change the voltage voltage text on the screen. Changes to the voltage property are relayed back and forth via the middleware. Different screens need access to voltage control and therefore the voltage property. How does one handle this TouchGFX?Thanks in advance.Mike Zomo

With simulator, the screenshots can be token by F3.However, I am not sure if it is possible to download current display from target / host when debugging ?

Hi,I'm using the TouchGFX 4.18.1 and trying to program the STM32469I-EVAL board with a video widget. I selected the proper eval board then added the video widget. Success for generate code. Simulator works fine.But, 'Run Target' fails with the following error:TouchGFX/generated/gui_generated/src/screen1_screen/Screen1ViewBase.cpp:6:10: fatal error: videos/VideoDatabase.hpp: No such file or directory      #include <videos/VideoDatabase.hpp>What an I missing?Thanks,Ari

Hello TouchGFX Community I just want to make you aware of this project from OptoLab. Is this something you are aware of ? and if you find it beneficial such project please comment. Link: https://github.com/OptoLAB/Mikromedia-7-Capacitive-TouchGFX

Hi,I have a problem with setting up a touchGFX.I'm trying to configure touchGFX to work with FMC display and external RAM.But every time code get stucked at configAssert.Do you know what could be the issie of this problem?

Hi there !i'm gonna to 'play' with touchgfx , and after a help from community ii'm going to make my first program. And here i'm first problem. I wanto to change the name of a button after i touch and right now i just try to wrote that :void Screen1View::btn1(){ buttonWithLabel1.setLabelText(touchgfx::TypedText('t')); buttonWithLabel1.invalidate();} and i have a couple of question:1) dosen't work and afther the first touch the button look like continus to be push 2) i want write one phraselike Stop but i don't know how to do I hope some one can help me Have a good day Sergio

The latest H7 firmware pack version 1.9.1 introduces some changes to the OSPI initialization code which causes bitmaps stored in external flash to no longer be loader/displayed correctly.If working with the TBS for the STM32H7B3 Eval board we recommend to continue using the FW pack version 1.9.0 as of now./Romain

Hi everyoneMaybe this is an old question but I'm still having troubleI am working on a project on STM2F429 discovery board, now I have to use a larger sized screen for my project.So how do I do it with the correct sequence?What parameters do I need to set?I really need a sampleI appreciate all answersThanks

On a custom screen which contains a VideoWidget, I added a button that calls a callback to go back to another screen. I switch the screen as it's suggested from ST by calling static_cast<FrontendApplication*>(Application::getInstance())->gotoHomeScreen();This way of doing works on all my screens, but on the video screen it crashes the program when the tick event gets called :FrontendApplicationBase::handleTickEvent();When I remove the video widget of my view, the problem disappears.Is there a way to solve the issue ?

Hello everyone :) I've got some problems with the Scrollable Container. I created a small application based on the "Scrollable Container example". If I scroll the text, there are some issues. There is a delay between scrolling and the updated display of the text. It does not run smoothly.It does not matter if I enable scrolling vertical, horizontal or both. But on the other screen is a (horizontal) Scroll List with 12 Icons. There is no problem. It works perfectly. If anyone has a hint for me....Thank you very much

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   When starting Simulator it always fails even if I start completly fresh new project: I get the same result:In file included from C:/TouchGFX/4.16.1/env/MinGW/lib/gcc/i686-w64-mingw32/7.3.0/include/c++/bits/stl_algobase.h:66:0, from C:/TouchGFX/4.16.1/env/MinGW/lib/gcc/i686-w64-mingw32/7.3.0/include/c++/bits/char_traits.h:39, from C:/TouchGFX/4.16.1/env/MinGW/lib/gcc/i686-w64-mingw32/7.3.0/include/c++/string:40, from touchgfx/framework/source/platform/hal/simulator/sdl2/HALSDL2.cpp:25: C:/TouchGFX/4.16.1/env/MinGW/lib/gcc/i686-w64-mingw32/7.3.0/include/c++/bits/stl_iterator_base_funcs.h:65:10: fatal error: debug/assertions.h: No such file or directory #include <debug/assertions.h>

but the dots are printed with the same color.Is it possible setting different colors for dots in a dynamic graph?Thank you.

Hi there|I start to wrote my tiny first application with touchgfc and STM32G071 nucleo i just put one button with label . I want control a led. my problem is when i touch the button on the display nothingh append i try to put one breakpoint in the btn1() functionbut it look like i never arrive, I follow step by steo the STM tutorial and look a couple of video on youtube i didi the same but nothing work . I hope some one can help me thanks a lot

Hi, I used the STM32F429Zi discovery board.​So, I try to change the value to TextArea, but It's not work.​I created a project with reference to the following site.​https://www.youtube.com/watch?v=4xxkN9h0HYI*. Use the TouchGTX and make UI*. Make handlerTickEvent on the CubeIDE  *. Complie the code on the CubeIDE and execute TouchGTX simulator.  I don't know, what's the problem.​Can you tell me, how this code work?​And, Can you give me an example for TextArea?Thank you

Hello to everyone. I am working with STM32F429 mcu on Touchgfx. I have successfully run the Touchgfx. I am using a 7inch screen and sending images line by line with DMA. I want to use an external flash as I have too many images to use. I am using W25Q128 flash. Normally I was able to write and read, but could not integrate it with Touchgfx. I could not integrate the MB1642BDataReader library in the STM32G0 example into STM32F429. Would you help me with this topic? Am I following the wrong path? @Flemming Gram CHRISTENSEN​ @Martin KJELDSEN​ 

Hi,I made a STemWin based application for the STM32H747I-DISCO board. The app is a modified version of the STemWin_HelloWorld and GPIO_EXTI examples. The modification is simple. When the user presses the user button then the next LED is turned on and it prints the "Hello World! LEDx turned on�? message. If all the LEDs are on and the user presses the user button then all LEDs will be turned off and the LCD should show “Hello World! All LEDs turned off�? with white color. The color of the "Hello World! LEDx turned on�? message should be identical with the color of the turned on LED.Now the problem is: when I launch the app then all the LEDs are turned off and the LCD shows the “Hello World! All LEDs turned off�? with white color. This is the default state. This is good. But if I press the user button then the next LED is turned on but the message on the LCD screen stays unchanged even the LCD screen update code runs fine, it generates the proper message, with the right color.When t

Hi everyone,Some time ago I designed a board with an STM32F746 that captures images from a CMOS sensor (MT9P006) and transfers them via DCMI-DMA to an SDRAM (AS4C8M16SA), it works perfectly.Currently due to the lack of availability of the STM32F746 i used a STM32H743 which is pin to pin compatible and has almost the same peripherals.Using the STM32CubeMX I configured the STM32H743 in such a way that all internal/external peripherals works as STM32F746.Debugging the STM32H743 program i find that CPU is unable to acquire a complete image, the acquisition stops with DCMI_FLAG_OVRRI flag set, after some transfer from DCMI to SDRAM.I can't understand why this is happening, the only way to make the transfer work is to decrease the pixel acquisition frequency (DCMI_PIXCLK) from 56MHz to 33MHz,  this seems strange to me because CPU is not overloaded, since the only active peripherals besides DCMI, FMC and DMA are UART and I2C serial which are not active during the acquisition pr

my resistive touch screen looks like this. Why I am seeing this continuous line of my horizantal sliders. There is no such a problem on vertical one. How can I fix this? Is this about screen?

I need some replacement for old STMPE811 resistive touch controller for our board.Investigating the demo boards of ST we saw that this old component has been replaced by theSX8651 on STM32F429-DISCO. However, there are no drivers on the st repository. Can we expect some updates on the drivers of this component from ST?Thanks!

Hi there!i hope some oe can help me, are a couple of days i go crazy to find the problem. I create my own program with touchgfx with STM32G071_NUCLEO , i just put one buttonjust for try, i hopen the program with STM32Cubeide. I compile and try to dowload on Nucleo board but that is what apppend. Please some one can help me ? thank a lot Sergio

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