STM32 MCUs TouchGFX and GUI

STM32H7S78-DK reading Image from SD card with TouchGFX

Hello, everyone.I have a problem on which I am seeking advice and opinions for a possible solution.I am making an application with the STM32H7S78-dk board and TouchGFX. A very simple thing, imagine a page with a background image and a button, same fo...

TouchGFX breaks SDMMC DMA transfert for FatFS using SD card

Hi,I have a STM32F779BI on a custom board that communicates with a LCD display using the LTDC interface in 16bits (480x272). I am using a single buffer inside the RAM of the MCU. So far TouchGFX works pretty well but once i activated the Software pac...

How to use LibJPEG on STM32?

Hi all,I build a project with STM32CubeMX and using LibJPEG to decode the JPEG file from SDCard.And now I face a problem ,when it goes to the step 5 - start to decompress, it will stock in that function with no reason and the hardfault descripe like...

SD issue using STM32H747I-DISCO when writing floats converted to strings using snprintf()

Dear all, I have an issue that only impacts floats and doubles when converted to strings using snprintf which are then stored to an SD card. The save is run in a dedicated task using TouchGFX and I am disabling dcache before and re-enabling after sav...

Any one can help me to share the code of JPEG Decoder using SD card . currently i am using bmp decoder with Sd card and it's working but i need move to JPEG decoder

Bitmap caching and partial framebuffer

On a STM32F722xx board with no SDRAM, all I have are the 256KB or internal RAM and 512KB FLASH. I implemented PartialFramebuffer and got it working. To reduce the size of the FLASH image, I wanted to implement loading the bitmaps from the SD card.I f...

Resolved! Images on external flash (QUADSPI) mapped in memory and on SDCARD (simultaneously). It's possible?

Hello everyone.I have a custom board based on micro STM32F469NIH6I am using TouchGfx successfully and have all my images stored in a memory mapped 64MB QUADSPI.I would like to give the user the possibility to change some images (for example a logo) a...

Resolved! Can DCMI, SDIO & LTDC interfaces used in same time in STM32H7B3I-EVAL without any problem?

We have an application that required to use DCMI, LTDC & SDIO in same time. we plan to use STM32H7B3I-EVAL for proof of concept. can we use it or there is limitation in using all this interfaces in same time?

I have a problem in my TFT LCD project. I use LTDC, FMC, SDIO, and Touchgfx. I read all of the images in stm32f429 from the SD card. some of the images in my project don't load correctly. what should I do? and what is the reason?

as shown in this picture (the top picture is in Touchgfx and the bottom picture is in my LCD board) some images in my LCD don't load correctly!my code :void StartDefaultTask(void const * argument) { /* USER CODE BEGIN 5 */ f_mount(&SDFa...

STM32H747- Disco, CubeIDE v.1.10.1 Error during the following: Hi All, I'm having trouble to determine the reason why even a basic screen (white bckgrnd with 3-10 text letters) fail to display CM7. This happen with SD Card peripheral with CM4.

Memory stack/heap size were increased. Even tried to use DMA with no change.The screen is dimmed and colors aren't the ones designed. I'm learning about the DMA setup for this Kit so, knowledge about it's complete setup is unknown to me.Also, when tr...