STMicroelectronics Updates TouchGFX Suite to Elevate User Interfaces and Reduce Memory and CPU Needs in STM32 MicrocontrollersGeneva / 28 Oct 2019
STMicroelectronics has updated the TouchGFX user-interface software framework for STM32 microcontrollers, adding new features that enable smoother and more dynamic user interfaces and lower demand on the memory and CPU.
TouchGFX is a free tool in the STM32 ecosystem. Comprising two parts -- TouchGFX Designer PC tool for designing and configuring rich user interfaces, and TouchGFX Engine software that runs on the end-device to secure high UI performance -- the latest version 4.12 contains updates to both. Users can now build sophisticated user interfaces on one-chip display solutions without external RAM or flash, save power for longer battery life, and benefit from easier development to get to market faster.
In TouchGFX Engine, a partial framebuffer mode now allows the buffer to operate using as little as 6KB of RAM. A fully functioning user interface can now have just 16KB of RAM, so that small STM32 MCUs can deliver great user experiences without external memory. Also new, 8-bit luminance (L8) with 16-bit, 24-bit, and 32-bit palettes reduces demand for flash memory. Even with this smaller memory, TouchGFX maximizes performance by leveraging the STM32 Chrom-ART Accelerator™ to accelerate graphics and handle sophisticated effects. There is also a new cacheable container with dynamic bitmap that reduces CPU loading to run smooth and fluid animations at high frame rates.
Users can also now choose 6-bit color depth, which saves both RAM and flash while making 64 colors available for creating entry-level GUIs. Support for external non-memory-mapped flash is also new and helps build basic user interfaces within tight system resources.
The updates to TouchGFX Designer include extensions to the powerful set of customizable widgets, adding features such as Scale and Rotate that increase the power of simple drag-and-drop programming. Custom triggers and actions reduce reliance on coding to create sophisticated features, and a new Image tab lets users quickly configure individual attributes such as image format, dither algorithm, and layout rotation. There are also performance improvements that accelerate automatic code generation and reduce loading time, as well as new easy-to-use functions for guiding text, such as bring-forward and send-to-back.
The complete TouchGFX Suite, including TouchGFX Designer and TouchGFX Engine, is available to download free of charge from www.st/com/touchgfxdesigner.
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The STM32L5 is based on Arm® Cortex-M33 and TrustZone® technology combined with STMicroelectronics security implementation. On your STM32L562E-DK discovery board, TrustZone is disabled (factory setting) and you can develop as on any other STM32 device. This video shows how to enable TrustZone on STM32L562E-DK discovery using STM32CubeProgrammer and create, compile and debug or run a new project with STM32CubeIDE. It also shows how to open an example project delivered in STM32CubeL5 MCU Package, modify, compile and debug or run it. For further information, you can refer to AN5394 and AN5424 application notes.
Security has emerged as one of the 3 key areas that developers of embedded and IoT applications are thriving to improve. The STM32L5 microcontroller series is the solution and provide a new optimal balance between performance, power and security.
Download the free TouchGFX GUI software, try the Out-of-the-Box supported STM32H7B3I-DK, and eliminate the need for external ram, when developing your next embedded UI.