STM32 MCUs TouchGFX and GUI

PN532 SPI and LTDC non compatible

I am currently using Pn532 nfc SPI and lvgl for the display in STM32F469. I am using freertos to run both pn532 and lvgl display at the same time. But i have problem where i am using HAL_LTDC_Init(), the nfc wont read the card. Can someone help me ab...

Steps to control SPI display

I currently have a display that works with ST7789 controller and a Nucleo board, L4476RG. Unfortunately, I cannot find anything about interfacing SPI with TouchGFX, except for some very generic descriptions. What are the steps you would recommend to ...

How to transfer buffer to SPI LCD? This isn't it.

I'm really in need of some direction on how to get TouchGFX working on cheap LCD displays.I'm using a SPI based LCD in a RGB565 format. I've tested the write commands with images, fonts, etc. but TouchGFX is not transferring correctly.Here is my unde...

Does the DBANK bit should be activated while using firmware on one bank or firmware size over 256 KB ?

Hi everyone,I have some misunderstanding about the use of the DBANK bit of the configuration bits.I have a costomized SPI bootloader located at address 0x0800 0000 and an Application starting at 0x08005000. So both are located on the Bank1. I made th...

Unable to load BMP image in portrait mode with loading from left of TFT. ILI 9341-SPI with board STM32F072

We are using SPI TFT 3.2" ili9341 with STM32F072RBT6 board. We were able to accomplish successful display of BMP image but not able to view the image in portrait mode loaded from left side. If we try to change the orientation, the image does not load...

HAL_SPI_Transmit_DMA() actually transmitts nothing in Normal and circular modes.

Hello!Updated to the cubeMX 6.6.1, migrated project to the new MX version. Board is stm32f401CCU6. SPI1 was used as a TFT display port. The TFT graphic library (https://github.com/sfrwmaker/TFT_graphic_library) stopped working in DMA mode. Investigat...

Resolved! TouchGFX: How to enable an external data reader?

I am implementing a low cost custom TouchGFX project using a stm342G071 and an ILI9488 based display. For the ILI9488 driver I need the touchGFX framebuffer in RGB888 format.This works ok if I keep the image data in internal flash but I need to put ...

Frame Buffer Pixel Format - RGB565 to GRAY4. (ILI9341 SPI Display)

I have integrated ILI9341 SPI display to Touch GFX. Frame Buffer Pixel Format is - RGB565 and getting the output. But when I change Frame Buffer Pixel Format from RGB565 to GRAY4 not getting the output.(Actually ILI9341 Supports RGB565). Is this poss...

Why does a FMC Memory swap for LCD on a F746 cause SPI pins to toggle when writing to 8 bit parallel LCD?

I was double checking SPI speeds and functionality and noticed SPI pins switching state when they shouldn't be. I narrowed it down and discovered this only happens when the memory swap for the FMC LCD is enabled. There are some other posts from me ...