STM32 MCUs TouchGFX and GUI

Hi all,I used STM32H7S78-DK and everything was fine: I was able to load and flash the "HVAC Iot Demo" from TouchGFX Designer at the first time and develop my application using STM32CubeIDE.Then I bought an STM32N6570-DK and did the same procedure as before, but I was not able to flash that demo.I can successfully generate the code inside the TouchGFX Designer (version 4.26.0) but, when I push the button "Program and run target", I get this kind of error: Erasing memory corresponding to segment 0:Erasing external memory sector 0Error: failed to erase memoryError: failed to erase memoryc:/TouchGFXProjects/STM32N6570DK/IotDemo/MyApplication/gcc/include/flash_sections_int_ext.mk:18: recipe for target '_fsblflash_' failedmake[2]: *** [_fsblflash_] Error 1makefile_fsbl:45: recipe for target 'flash' failedmake[1]: *** [flash] Error 2../../gcc/Makefile:8: recipe for target 'flash' failedmake: *** [flash] Error 2FailedFailed Can anyone please help me?

Hi everyone, I've setup a project in TouchGFX4.18.1 and STM32H747i Disco, which consist of 4-5 screens. One screen is for motor control. In this motor control screen 3 buttons are used (low, medium, high) for changing the PWM. Simple but, the virtual function at the model (MVP) is calling the wrong Function. The funny thing is, the order that a function is placed in the .HPP yields that the function to be called in model and it's not the correct function. I've used breakpoints throughout MVP, and all was validated as making the incorrect/correct call.    virtual void PWM_33(); (if PWM_33 is placed on the bottom, PWM_66 would be called for every button.) virtual void PWM_66(); (same as the above) virtual void PWM_75(); (same as the above)   This is the third time I've made the to change to the buttons that only yield the same results. Otherwise, each function call reverts to the order in .HPP. This area (stepping from VIEW, Presenter to Model not possible

Hello everyone,I’m working on a custom board based on the STM32L4R9 with a 2.1" round 480×480 display from Newhaven, which uses the ST7701S controller. My goal is to get it running with MIPI DSI / LTDC and TouchGFX.So far, I’ve managed to display a solid color by manually filling a framebuffer. However, once I integrated TouchGFX and started rendering shapes, the lines appeared shifted. This makes me think the issue is related to timing parameters (HSYNC, VSYNC, VBP, VFP, HBP, HFP).The problem is that the display datasheet doesn’t provide typical timing values. I contacted Newhaven’s support, and they shared example code for the same panel but using the SSD1963 controller. Unfortunately, using those values didn’t work. Looking deeper into their example, I noticed that the comments mention one set of values, but the actual register settings differ. When I reached out again, they simply said the comments might be wrong, but the code should work. Not very helpful.Here is the example that

When I attempt to create a new project with TouchGFX Designer 4.18.0 using the STM32F469I Discovery as a board setup, the Create button gets to 88% and then consistently fails with the message "Error: Cannot create a file when that file already exists."The message seems completely misleading though. It also asks me to look at the TouchGFXDesigner.log for additional info. That log tells a completely different story. Roughtly halfway through the logfile, I find:2021-10-27 14:57:50,354 [10] INFO Utils.WebHandling.WebHandler: Downloading washer_demo_image_02.png2021-10-27 14:57:50,526 [10] INFO Utils.WebHandling.WebHandler: Downloading washer_demo_image_03.png2021-10-27 14:57:50,713 [10] INFO Utils.WebHandling.WebHandler: Downloading STM32F746G-DISCO_washerdemo.png2021-10-27 14:57:50,869 [10] INFO Utils.WebHandling.WebHandler: Downloading washer_demo_image_02.png2021-10-27 14:57:51,041 [10] INFO Utils.WebHandling.WebHandler: Downloading washer_demo_image_03.png2021

I followed and reproduced the video https://youtu.be/NFljjd_vQGA.I reproduced it using an STM32F429I-DISC1 module, and it works.In Windows Explorer, among the files created by the TouchGFX generator, you can see the file tree of a CubeIDE project: /core, /drivers, /middleware, etc.However, the IOC file does not have the same name as the project.When you double-click on the .project file (as shown in the video, in the STM32CubeIDE folder),inside the CubeIDE environment you see a different file tree compared to Windows Explorer:The project name has become: STM32F429I_DISCO_REV_D01No /core/src and /core/inc foldersmain.c is located in /application/userNo main.hNo link to open TouchGFX Designeretc.What should be done to get back to a “standard” CubeIDE project?

Hi,There is a documentation about Using TouchGFX on Linux but with TouchGFX 4.26 there is something missing to be able to build the simulator on Ubuntu 24.04.TouchGFX 4.26 embeds Ruby 3.0.0 and Ubuntu 24.04 provides Ruby 3.2.TouchGFX 4.26 generates Ruby scripts with a method 'exists?' which gives an error on Ruby 3.2Using this command:sed -i 's/exists?/exist?/g' $(find Middlewares/ST/touchgfx -type f)I was able to do a sucessful:make -f simulator/gcc/Makefileon Ubuntu 24.04.ST, can you update your scripts to be compatible with Ruby 3.2 for TouchGFX 4.27 ? Thank you

don't want to start a touchgfx project from cubemx, instead from cubeide!

一. Relevant hardware and software versionsThe hardware I am using is STM32H750, including on-chip RAM and QSPI flash. The screen resolution is 480x272 with a RGB interface screen, and the color format is RGB565. The LCD buffer and TouchGFX buffer are located in AXI RAM. The Cubemx version is 6.15 and the TouchGFX version is 4.26.二. Regarding the issues I encounteredI tried several 480x272 examples available on touchgfx. I found that there was some image loss in this simulation clock example and texture mapping example, but I was able to complete the task using other examples. I would like to ask everyone what's going on here, or if there are any suggestions for solutions.tains some relevant pictures.

Perhaps someone can help me with regard to creating a TBS please.I created a TBS following the instructions here https://support.touchgfx.com/docs/development/scenarios/scenarios-create-atI'm using TouchGFX V 4.26.0 so I altered the instructions given for V.4.25.0 accordingly.Apart from some confusion over the naming of the JSON file which always reverts to 'MyApplication' following the pack command, the TBS that I created worked.I then went on to create a second TBS for a different set up. However this one didn't work, and the first TBS that I had created stopped working. (I must add at this stage that I don't recall changing anything that related to the first TBS when I created the second but I honestly can't be sure).The error I get is 'Download of 'MyAppicationName' failed, this is shown highlighted in the screenshot below at the bottom right. My two TBS's are highlighted with red star. The first TBS I created is named '4-inch-Circular', and the second 3.45 inch starter projec

Hi!I'm currently working on a game for a st32U5 which is 80 MHz and I don't believe has any H.W. acceleration (right?) and I want to minimize the CPU workload.I'm currently manually making an image move, by changing the position at 30Hz. I'm considering using an animation class, but I am worried that If I use the animation class it would then move at my touchGFX FPS (60Hz) and cause more CPU workload.If using an animation is more efficient, then I suppose I won't worry about it. 

I have come back to TouchGFXDesigner after not using it for about 6 months. I have updated to 4.26.0 and created a new blank project for the STM32H747I-DISCO board. When trying to generate code, I get the following error message:Generate CodeGenerateDoneGenerate Assetsmake -f simulator/gcc/Makefile assets -j8'M' is not recognized as an internal or external command,operable program or batch file.FailedFailedLooking through the Makefile, I can't see anywhere that this 'M' would be generated, and make isn't overridden in my environment variables.

Hello, I am working on a Riverdi Screen RVT101HVSNWC00 using STlink2, and I am trying to display colors using touchgfx designer.This is a screenshot from my Touchgfx designer ApplicationAnd this is the output on screen:I don't understand the logic of displaying colors...I thought at first that it is read as BGR instead of RGB but it's not the case because blue is displayed as black for example and red is displayed as green instead of blue.Do you have an explanation of this behavior?Could you help me resolve this issue?Thank you !  

Good evening!I'm implementing a keyboard that looks like the three mockups below (you can ignore the fourth, "Numbers Compact"). I'm manipulating the basic "Keyboard Example" provided by TouchGFX.I have implemented two keyboard layouts - `alphaLayout` and `numLayout` and I programmatically switch between the two when the ABC/123 button is pressed. I am finding myself reaching for a third layout simply so I can have different icons for the SHIFT key between the lowercase and uppercase versions: uppercase version lowercase versionThat seems silly, but I can't find any other way to change the icon on that one particular button for the unpressed state. Am I missing something?Thanks,Julia

Hi again,I'm looking to implement a character limit on a keyboard, as seen by the red 30/30 text in the screen below. In CustomKeyboard.hpp I added: /** * The buffer used to hold the ASCII representation of the key count (e.g., "5/30"). */ Unicode::UnicodeChar keyCountTextAreaBuffer[KEYCOUNTTEXTAREA_SIZE]; /** * Used to display the count of the characters entered / total allowed. */ TextAreaWithOneWildcard keyCountTextArea;And in CustomKeyboard.cpp there's some logic to add that textArea to the screen:CustomKeyboard::CustomKeyboard() : keyboard(), keyCountTextArea(), modeBtnTextArea(), enterBtnTextArea(), capslockPressed(this, &CustomKeyboard::capslockPressedHandler), backspacePressed(this, &CustomKeyboard::backspacePressedHandler), modePressed(this, &CustomKeyboard::modePressedHandler), enterPressed(this, &CustomKeyboard::enterPressedHandler), keyPressed(this, &CustomKeyboard::keyPressedHandler), alphaKeys(true), uppercaseKeys(false), f

I have a new STM32H757I-EVAL board. The examples that can programmed on it ran perfectly. I want to compile and debug the TouchGFX example myself but I only managed to kill the app that is running on it. I've created the TouchGFX example from within STMCube32IDE by selecting the evaluation board, and then the example. It builds without errors. In Debug Configuration, on Debug tab under External Loaders, I've added MT25TL01G_STM32H747I-DISCO.stldr with Enabled set to true and Initialised set to false. When I select debug, it starts to program but fails after a while. Below is the output from Console. What is wrong, and how can I fix it?   STMicroelectronics ST-LINK GDB server. Version 7.10.0 Copyright (c) 2025, STMicroelectronics. All rights reserved.   Starting server with the following options: Persistent Mode : Disabled Logging Level : 1 Listen Port Number : 61234 Status Refresh Delay : 15s Verbose Mode : Disabled SWD Debug : Enabled InitWhile : Enabled   Info :

I am developing a TouchGFX user interface on a STM32U5G9 with a 24bit RGB LCD screen. I have developed the user interface on the STM32U5G9J-DK2 development board, where it works fine. I imported the TouchGFX project on my custom board the framework stops after the first full screen is displayed.As a test I have added a start-up screen with two colored boxes and a image in internal flash. I have configured interactions to jump to the main screen after 3 seconds. When I set a breakpoint inside model.tick(), it triggers before 25 ~30 times before it stops triggering. The other threads of the application run as intended (ThreadX). If I look at the thread list in CubeIDE, the TouchGFX thread has state ready, and it's run count stops increasing after the first frame is displayed on the screen. I compared both projects of the devboard and my projects in cubeMX, and I can't find any differences. I compared both IDE projects with winmerge, but also nothing found which could cause

Hello STM32 Community,I am using the STM32H753 microcontroller in a project with the following setup:Display: 10-inch RGB display (1280x800 resolution).External Memory: Parallel NOR flash and SDRAM.TouchGFX: For GUI development.The system is configured to use external SDRAM for the framebuffer and NOR flash for storing images and other assets.Problem:When switching screens in the GUI, the display flickers briefly. The flickering is particularly noticeable during transitions with animations or large screen changes.What I Have Tried:Double Buffering: Enabled double buffering in TouchGFX to reduce tearing and flickering.LTDC Configuration: Checked the LTDC clock settings to ensure proper synchronization.DMA2D: Verified that DMA2D operations are correctly configured for image transfers.External Memory Timing: Adjusted the timing configuration for the NOR flash and SDRAM to match the datasheet specifications.Despite these efforts, the flicker persists.Additional Information:LTDC and DMA2D:

I am trying to update a text area called textTestArea with a string and I want to be able to format the string with a newline character.    Ex "I went to the store \n to buy food" I created a texts called genericText that uses a default font that has wildcard range 0x00-0xFF ,  I also tried having range 0x20-0x7e and wildcard character 0x0A (/n)here is the text and typography:  Here is the screen with text area:in baseview.cpp it creates:  textTestArea.setPosition(397, 26, 237, 55); textTestArea.setColor(touchgfx::Color::getColorFromRGB(0, 0, 0)); textTestArea.setLinespacing(0); Unicode::snprintf(textTestAreaBuffer, TEXTTESTAREA_SIZE, "%s", touchgfx::TypedText(T_GENERICTEXT).getText()); textTestArea.setWildcard(textTestAreaBuffer); textTestArea.setTypedText(touchgfx::TypedText(T___SINGLEUSE_E1ZC)); add(textTestArea);So now in my view.cpp: static const uint16_t TEXTBUFFER_SIZE = 64; Unicode::UnicodeChar textBuffer[TEXTBUFFER_SIZE]; U

Post edited by ST moderator to be inline with the community rules for the code sharing. In next time please use </> button to paste your code or a script. Please read this post: How to insert source code. Hi This is something very easy that I am missing or impossible. I am using a nucleo-l476 to drive an RA8875 with a flash memory attached. This is using touch gfx to drive the RA8875 LCD. I am switching in/out of memory mapped mode to rewrite part of the flash memory so I can load different images into the flash memory and touch gfx will load the new images from the nor flash (This all works beautifully). what I am trying to do is have touch gfx load an image to a different part of the nor flash using partitioning.  see linker below.   MEMORY { RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 96K RAM2 (xrw) : ORIGIN = 0x10000000, LENGTH = 32K FLASH (rx) : ORIGIN = 0x8000000, LENGTH = 1024K QSPI_NOR (xrw) : ORIGIN = 0x90000000, LENGTH = 8M QSPI_NOR_P (xrw) : ORIGIN = 0x9

Hello to everyone,I'm using a custom board based over STM32H743XIH6.I'm developing a project that need to use TouchGFX, FreeRTOS and LWIP over ethernet. My first goal it's to be able to PING the card while TouchGFX is running, but i'm having lot of problems (hardfoults) If I enable only TouchGFX + FreeRTOS  all run wellIf I enable only LWIP + FreeRTOS  I can PING the cardIf I enable all (LWIP-FREERTOS-TouchGFX) I have lot of problems (HardFAULTS).Someone could share a simple project that can use all of them?I'm using a Custom board but i could try to a NUCLEO H743ZI  KIT too.Best Regards.Roberto  

Hello allDo we knoiw for the example like ( https://support.touchgfx.com/docs/development/scenarios/running-graphics-from-external-ram ) but for the STM32H750B-DK board where the bigger LCD is used?Any comments are more than welcome!Best. 

Hello.I try to get the nema-gfx working on a STM32H7S78-DK.But there's a bug in the NEMA library, or a bug in the ST toolchain.  When I try to call the library function nema_cl_create() in my function nema_gfx_init(), according to the STM32H7RS GPU2D document (page 6), stm32h7rs-system-gpu2d.pdf the stack is overwritten with values, so the return address on stack (0x7002AEFB) is no longer available (0x00000000) and the cpu goes in hard fault.  I suspect it's a bug in the NEMA library. The correct version for the H7 series was used. The error occurs with both versions: libnemagfx-float-abi-hard.a and libnemagfx.a.  I looked inside the function in the disassembler, and at the end of the function, registers r0-r3 are written to the stack, but much too far! (See images)  Stack bevore calling nema_cl_create. Return-adress: ok Stack after calling nema_cl_create. Return-adress: 0x00000000 Dissass. inside der nema_cl_create: overwriting behind actual stack en

a F407 developer board in hand, it don't fit to touchGFX project, No OS, think to use DMA rise color data send speed,color data in external sram be  to send LCD interface, a lots of  trying, lost! DMA poll amd interrupt mode had test!for guiding

Hello,I developed a product,but customer wants that if no touch detected in 10 seconds the device will go in home page. I believe that the only way is to manage STM32TouchController.cpp in the point I have higlighted  Is it the best way ?Thankyou for your patience.

STM32H7S78  Software:TouchGFX Designer + STM32CubeMX + STM32CubeIDEProblems observed:- Screen flickers randomly especially during screen transitions.- UI text disappears or becomes invisible after returning to a screen.- Mixed or corrupted screens — elements from previous screen appear on the next one.- Sometimes partial or outdated frame buffer content is displayed.These issues occur consistently when navigating between screens, I attached video for your reference. TouchGFX Environment:- LTDC enabled, RGB interface, external display 7” TFT- TouchGFX task priority: Normal- TouchGFX task stack size: 4096 bytes- Running under FreeRTOSWhat I have already tried:- I have tested the following but issue still persists:- Increased TouchGFX task stack (4096 → 8192)- Ensured LTDC clocks are correct- Ensured invalidate() is called after UI updatesLooking forward to your further guidance.Best regards,Mehul Rana