STM32 MCUs TouchGFX and GUI

Hi, i would need information about setLineSpacing (int16 space) method in textarea widget.Documentation says that it's used for increasing space between lines, but the parameter "space" defines the space in pixel or other unit measurement ?Thanks a lot anyone can help me 

I purchased the NUCLEO-L476RG and X-NUCLEO-GFX01M2 boards and connected them together.I downloaded the STM32L476 LCD Example project (I think I found in X-CUBE-DISPLAY v3.0.0 projects), compiled and loaded the code onto the NUCLEO-L476RG. The example worked great with a couple minor changes like HAL_GPIO_ReadPin(B1_GPIO_Port, B1_Pin).The provided images (.H const char arrays) displayed correctly and the text strings with various size fonts worked as well. Text strings are displayed at x/y position with selected color and background color. But when text strings are positioned over an image, there is no way to make the text character background transparent using the supplied evaluation code. I tried using the different layers of the Nucleo-GFX01M2, but only one default layer seems to be supported by the supplied software driver. See "SetLayer" below.

Post edited by ST moderator to be inline with the community rules especially with the code sharing. In next time please use </> button to paste your code. Please read this post: How to insert source code   Everything works fine when using the GNU compiler. However, when using the ARM V6 compiler,The touchGFX program cannot automatically run. The reason is that the printf statement  was used in the touchgfx library. In ARM V6 C++ Standard Library, The printf IO is redefined to breakpoint instruction. So the program cannot run automatically when using  touchgfx library in KEIL. Solutions: Retargeting printf() /* Defining __FILE_INCOMPLETE as 1 allows compilation of __FILE with * a strict ANSI C s

HI all,I have a custom board composed by an stm32h743 and 2 QSPI memory (2x 16MB) with different CS. The proejct uses only the first memory to access the graphic contents and doesn't use the second memory.For this reason, I want to use the second memory to store new text and graphic contentsIs it possible to share the external QSPI memory with another task to write data on QSPI while touchgfx is running?Is it possible to stop Touchgfx_task for the time I need to read or write into the second memory?There is a more elegant way to do it? thanks 

I have TouchGFX UI running on STM32H7. Only with one screen there is an issue, fonts gets distorted.   What could be the reason for this?  

I have a multi-language graphics project which requires the use of characters beyond the standard ASCII set.  I have not found a working method to convert C++ wstring to TouchGFX::Unicode.  I have attempted the following: Unicode::strncpy(txtTitleBuffer, headerText.c_str(), buf_size1);  //No matching funtions...Unicode::strncpy(txtTitleBuffer, headerText, buf_size1);             //No matching funtions... Unicode::snprintf(txtTitleBuffer, buf_size1, "%s", headerText.c_str());       //Compiles without error but only shows 1st character.Unicode::snprintf(txtPasswordTitleBuffer, buf_size1, "%s", headerText);  //Compiles without error but only shows ??? which is the default undefined font character. If possible I would like to stay with the standard C++ type for the strings and conv

Hi,I have a project derived from the demo6 from ST on the STM32U5G9J-DK1 devkit, where I want to display SVG images. The only difference is that the rounded display of the original kit has been substituted with another rounded display of the same resolution (480x480 pixels) but smaller. The PCB of the display is then different as well as the display driver chip which is driven through MIPI-DSI commands (and not using video mode of MIPI-DSI like the original demo is). I'm using latest version of TGFX 4.25.0.All the subdemos of this demo6 project are working the same as on the original display, but not the SVG subdemo. All the .SVG images of this specific sub demo, which should animate and start bouncing on the screen, are simply not rendered at all. I only see the background image which is a .PNG file. And I can come back on the main screen as the touch display is working.

Hi,I’d like to terminate the build process, but pressing F7 causes GfxDesigner(4.24.1) to crash.2025-10-17 13:46:51,280 [1] WARN TouchGFXDomainModel.Texts.FontGetter: font already added. (path: HPSimplified_LtIt.ttf, name: HPSimplified_LtIt 2025-10-17 13:46:51,280 [1] WARN TouchGFXDomainModel.Texts.FontGetter: font already added. (path: HPSimplified_Rg.ttf, name: HPSimplified_Rg 2025-10-17 13:48:35,702 [26] ERROR TouchGFXDesigner.App: Invalid class System.Management.ManagementException: Invalid class at System.Management.ManagementException.ThrowWithExtendedInfo(ManagementStatus errorCode) at System.Management.ManagementObjectCollection.ManagementObjectEnumerator.MoveNext() at TouchGFXApplication.Executors.Executor.Cancel() at TouchGFXApplication.MonitorCommands.RunSimulatorCommand.Cancel() at TouchGFXApplication.TouchGFXApplication.<CancelCompile>b__38_0() at System.Threading.ExecutionContext.RunInternal(Executi

Hello everyone,I am experiencing a HardFault on an STM32F746G-DISCO board while working with TouchGFX. The issue seems to be related to code automatically generated by the TouchGFX Generator in STM32CubeMX.The fault occurs when my application tries to set text on a TextArea widget. The debugger stops inside the HardFault_Handler, and the call stack clearly indicates the issue originates from the setTypedText() function chain.Here is the relevant part of the call stack from the debugger:HardFault_Handler()touchgfx::TextArea::getTextWidth()touchgfx::TextArea::resizeToCurrentText()touchgfx::TextArea::setTypedText()... (my application code, which was generated by the generator)It seems that a call to setTypedText(), which is part of the generated code, is leading to the HardFault. I suspect this might be caused by an uninitialized TextArea object or a configuration issue

Hello,I am working on a project using the STM32F429I-DISC1 board. This project is part of my part-time job and will also serve as my university thesis. I’ve been working on it for about a month, but I’ve run into some issues I can’t solve.My goal is to make the board function somewhat like an oscilloscope (Gaussmeter) — it doesn’t need to be perfectly precise.I’m sampling at 10 kHz and storing samples in a buffer of size 168 (since 10,000 / 60 ≈ 167.6). Every handleTickEvent() (which runs at 60 Hz), I send this buffer to a DynamicGraph.The problem is that it doesn’t behave correctly.In a previous version, I plotted one point per tick, which naturally skipped some samples but still displayed the sine wave correctly on the DynamicGraph, and the computed values were accurate.In this new version, I’m trying to buffer 168 samples and then plot them

I just discover that the TouchGFX tool run only on Windows ...:(I do not use Windows and I have no plan to use it one day.Do you know if it run on Linux with Wine ?Thanks

I want to change the font at runtime for a TextAreaWithOneWildcard.I figured it would be as simple as:1. update the text in the wildcard buffer (previously set by calling setWildcardTextArea)2. call setTypedText( id ) where 'id' is a designer defined text entry that uses the predefined font I want to use (different to the one used for the TextArea in the designer)3. call invalidate()It seems that the string associated with the 'id' text entry takes precedence over the string I update in the wildcard buffer. I've tried calling in a different order with no success. Is this by design or a bug?I've seen a suggested workaround that uses multiple languages to define the same string but with different fonts. My application is multi-lingual so that's not an option.Why doesn't TextArea have support for selecting a font that is already defined in the application or am I missing something?Thanks 

Hello,I am a beginner with TouchGFX. I created two screens with a slide transition and found some questions would like to confirm.1) Text brokenI found that when the B screen transitions to the A screen, the Big Text contains text broken during transition and is recoverable.CPU frequency = 280MHz (recoverable) (00:00:07, with 0.25 speed)video link: https://drive.google.com/file/d/1CLOdeWr4uZ_r9ffi9f0Zoa8mLxGHqC14/view?usp=sharingContains Black pixels

My project is working as expected using the DSI_TE_EXTERNAL with a TE pin from the display.How to get the TE event via DSI? Is that default enabled?If I use "CmdCfg.AutomaticRefresh = DSI_AR_ENABLE;" then I get the interrupt to my callback. But timing is bad.Anyone solved the problem earlier?

I created a simple project back in May (simple - some buttons, temperature display) and mounted in a box (landscape/0 rotation).I went to reuse the display with a new TouchGFX project (same box) and it is flipped 180! When I load the old code, correct side up, new project in TouchGFX and it is upside down.  I checked the forum and this isn't easy to do and requires extra code - how is this even possible?  For reference, it is a fairly new STM32F469I-DISCO (blue) purchased in May of 2025.  Old project - SDCARD/Headphone jack faces down.

Hello i'm using touch GFX with STM32H7RS-DK And i need to evaluate for a future product if display rotation is possible.I tried this implementation but drawCacheEnabled isn't reconize by software so i removed it and the widget is working but the screen flicker betwen 0 and 180° . Is there a more actual way of rotate a screen .  // Force redrawing entire screen virtual void draw(Rect& rect) { if (drawCacheEnabled) { // Invalidate entire screen instead of requested rect. Rect r(0, 0, HAL::DISPLAY_WIDTH, HAL::DISPLAY_HEIGHT); Application::draw(r); } else { // Use original rect if we are *actually* drawing and not just invalidating. Application::draw(rect); } } Thanks

Hello All,I am working on touchgfx project where I had default __weak void TouchGFX_Task(void *argument) task which was working fine for GUI and touch.Later I have added other task for data transfer over uart1 using another task in main.  Now the problem is the GUI task is showing only first screen and getting freeze, no touch detection and other task is sending data over uart (which is working fine). Does adding additional task causing the elimination of TouchGFX_Task, or do I need to make some more settings or changes to TouchGFX_Task to function normal ? 

 I am working with the STM32U5G9 board and I have some trouble when displaying applications  As indicated in the tutorial (link below), I installed the 4 applications. I took the last ones from ST website.https://www.youtube.com/watch?v=OMeiG9jS-yk&list=PLnMKNibPkDnF9x-s1e-v9Wtvv-fB88VWA&index=1 CubeIDE is already installed since I work with TOF sensors quite regularlyHere are my application versions.CubeMx Version

Hi. While testing the animation, I noticed strange behavior in the Animated Image widget when using the RGB565 image format with compression.I'm using an STM32U599, LTDC/RGB24bit, the animation is started with a button.Immediately after startup, the widget area turns white with dots. I could understand this if it were some kind of limitation resulting from the compression. But...If the widget is placed in a Swipe Container widget, after changing the screen and returning, the white area disappears, and the animation executes correctly. What could be the cause? I'm concerned about compression, because in this case, the size difference is tenfold.I also want to know if there's an option somewhere to prevent the framebuffer from being placed in flash memory every time the project is generated? Currently, I add the "__attribute__ ((section (".noinit")));" parameter, but this has to be done every time the configuration changes...

I am looking for a button implementation for the Setting button way to achieve the steps:1. At the start, the Setting button is in OFF state on screen12. Press once, the interaction will change to setting screen for specific settings, this screen will have 2 clicks buttons CONFIRM and CANCEL. a.  If the settings is done and CONFIRM button is clicked, the settings are saved and return back to screen1 the Setting button should show the ON state.b. If the cancel button is clicked, there will be no saving and return back to screen1 with the Setting button is in OFF state3. If the Setting was in ON state after successfully CONFIRM the setting, press one more time, the Setting button should go back to OFF state, and NO screen changing.I am be able to use the toggle button to implement the Setting button, and by create the interaction to do the screen switch from the first press, and don't call the interaction on the second press to achie

So Im trying to move heap to my external SDRAM and the problem is that it hardfaults after 3s and do not know why.In startup file before__libc_init_array i call fmc function which init SDRAM.Fmc function looks like this:  void fmc(void) { HAL_Init(); SystemClock_Config(); PeriphCommonClock_Config(); MX_GPIO_Init(); MX_FMC_Init(); MPU_Config(); // mark SDRAM cacheable SCB_EnableICache(); SCB_EnableDCache(); } Im using TouchGFX, STM32H743ZIT6 and IS42S16400J-6TLI SDRAM. Ive already changed my sbrk, linker and MPU. I add code fragments: /* ****************************************************************************** ** ** File : LinkerScript.ld ** ** Author : STM32CubeIDE ** ** Abstract : Linker script for STM32H7 series ** 2048Kbytes FLASH and 1056Kbytes RAM ** ** Set heap size, stack size and stack location according ** to application requ

Hi everyone, I'm using a Riverdi board (STM32 10.1" Rev. 1.2) with an STM32H747XIH6, and I'm having trouble with the UART8 in single-wire mode. I can't get the interrupt callback function to be called when data is received on that port.This board uses TouchGfx and FreeRTOS.I'm using a test interrupt code just for the UART8, but it's not responding.If I use the blocking function HAL_UART_Receive(...), I receive consistent data, so I don't think it's a wiring or pinout issue. I have checked that the signal is coming in with the oscilloscope.I have the global interrupt enabled for the UART8.The code I'm using is this, in freertos.cvoid startUartTask(void *argument) { /* USER CODE BEGIN startUartTask */ memset(rxBuffer, 65, 128); HAL_HalfDuplex_EnableReceiver(&huart8); HAL_UARTEx_ReceiveToIdle_IT(&huart8, rxBuffer, 64); /* Infinite loop */ for(;;) { //HAL_UART_Receive(&

We’re enjoying working with TouchGFX, but we’ve encountered a challenge: our projects are stored in the WSL filesystem which uses UNC paths (e.g., \\wsl$\). Currently, TouchGFX Designer doesn’t seem to support UNC paths making it cumbersome to make changes to our project. Right now we have to store a second copy of the project on the Windows filesystem in order to use TouchGFX Designer resulting in extremely slow compilation times due to the virtualized file system boundary.Would it be possible to add UNC path support in a future release? This would greatly improve our workflow and integration with WSL environments.

Hello,I've implemented, using the Designer, a Swipe container composed by 2 pages which are respectively 2 containers (SwipeContainerPage1, SwipeContainerPage2).Each page includes some text and box which are updated on page swipe change and everything works fine.Now I want to command an Action (a page change) when the user presses for a couple of seconds (let's say 2 seconds) SwipeContainerPage1 or SwipeContainerPage2 while maintaing the swiping property of this macro object.Is this possible? I've taken as a reference the "ClickListener_Implementation_longPress" as a reference but with no success...(Edited) I tried doing this and it works for the first page (calls goTo_GUITemperatureSet_Action()) but it blocks the swipe capability and I cannot go to the SwipeContainerPage2://In the .hpp file class GUIMainSwipe_View : public GUIMainSwipe_ViewBase { public: GUIMainSwi

Hi all,we're right now switching from 32F469IDISCOVERY with STM32F469NIH6 (running @180Mhz) to another display board with a STM32U5A9NJH6Q (running @160Mhz).Our UI has one Screen with a SwipeContainer (total of 3 pages). On the second page we're using two DynamicGraphs to display a target curve and a curve with measured data (both Graphs are using a Line as Element).During swiping the animation is very slow and laggy. Of course we can also see some performance decrease on the discovery board but on the new board it is not acceptable- therefore I'm searching for some hints how to improve this behaviour.When the graphs are empty the animation of the swipe container is fast enought. But If both graphs are filled with data (right now we have 480 datapoints for each graph / maximum is 600 for each graph) the animation is very slow. The more datapoints are pushed to the graphs the slower the animation gets.1) Is there a way to improve