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ST Releases Updated TouchGFX User Interface Software for STM32 Micros

Updated software requires less memory and includes a powerful set of customizable widgets

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.

Click for Larger Image - ST Releases Updated TouchGFX User Interface Software for STM32 Micros 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.

Features of the TouchGFX Designer Software

  • Structure: easy creation of multiple screen contents and associated transitions
  • Widgets: wide selection of customizable widgets, such as a swipe container and cycle progress, for effortless GUI creation
  • Skins:
    • Set of ready-to-use graphical skins enabling consistent prototyping with no need for a graphical designer
    • No restriction to the use of custom graphics
  • Interactions: dynamic interactions for the creation of user-friendly applications
  • Custom container:
    • Creation of custom reusable application control
    • Easy platform development with unified look and feel
  • Text handling:
    • Fonts and typographies specified and managed in one single place
    • Full translation service
    • Full support of multiple alphabets and scripts such as Latin, Cyrillic, Arabic, Chinese, and Japanese
  • Code Generation:
    • TouchGFXDesigner generates and maintains performant C++ code
    • Tool-generated code entirely separated from user code
    • All types of code extensions possible for unique animations as well as system interconnections
    • Support of several integrated development environments such as IAR Embedded Workbench, Arm Keil, and GCC-based IDEs

More Information on the TouchGFX Designer Software and to download the software, visit the ST website at ST TouchGFX Designer Software page.

STM32 is a registered and/or unregistered trademark of STMicroelectronics International NV or its affiliates in the EU and/or elsewhere. In particular, STM32 is registered in the US Patent and Trademark Office.

The STMicroelectronics website address is www.st.com.
[Reprinted with kind permission from STMicroelectronics - Release Date 28th October, 2019]