Free GUI Tool to Revolutionise the HMI of Things

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STMicroelectronics is accelerating the HMI revolution by making ‘TouchGFX’ GUI software ready to use with STM32 microcontrollers 

STMicroelectronics is making its STM32 microcontrollers (MCUs) even more attractive to developers of IoT products and other smart devices by providing free software for creating rich, smooth, and colorful graphical interfaces in order to deliver a great user experience. This will enable developers to easily add a smartphone-like GUI to embedded devices, accelerating the “HMI of things” revolution, ST said.

The STM32 is a popular Arm Cortex MCU family, with over 800 device variants and a powerful ecosystem.

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Following its acquisition of Draupner Graphics, creator of the TouchGFX graphical user interface (GUI) development suite, ST has made the software available free of charge for production and redistribution with STM32 MCUs.

“Many customers have already successfully used TouchGFX to bring smartphone-like experiences to new products running on STM32 microcontrollers,” said Daniel Colonna, Marketing Director, Microcontrollers Division, STMicroelectronics. “By incorporating the latest version in our STM32Cube ecosystem, with no license or royalty fees, and supported by our 10-year longevity commitment, we are making this powerful and innovative solution easily accessible on a global basis.”

TouchGFX – Free Graphic UI Tool in the STM32 Ecosystem

TouchGFX is ready to use with STM32 microcontrollers and includes a C++ framework that enables the user-interface code to occupy as little as 10KB SRAM and 20KB Flash memory. It leverages the Chrom-ART Accelerator featured in STM32 MCUs with advanced graphics capabilities and contains a rendering algorithm that minimizes the number of pixels to be updated, enabling better graphics and smoother animations on a low memory and power budget. TouchGFX supports user interfaces with color depth of 1, 2, 4, 16, or 24 bits per pixel (bpp) and can run with or without a real-time operating system (RTOS).

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Also included is the TouchGFX Designer tool, which lets users quickly develop graphical interfaces by simple drag-and-drop operations and features automatic code generation as well as font, text, and image conversion.

Now fully integrated with the STM32Cube package, TouchGFX is interoperable with the STM32CubeMX configuration tool and initialization-code generator, creating a unified project environment for seamless development of the GUI and the main application.

To help graphics-design projects run smoothly, ST said it has added new features to STM32CubeMX including an enhanced MCU Finder that helps short-list suitable microcontrollers, a graphics calculator for assessing performance, and a simulator that shows how the graphics will run on the target hardware.

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