UI software improves TouchGFX image compression and information sharing
User interface (UI) software for the TouchGFX for STM32 microcontrollers includes improvements that include advanced memory-saving image compression and built-in information sharing, said STMicroelectronics.
TouchGFX 4.22 automatically selects the optimum compression for images and graphics, which reduces the system memory requirement without compromising UI performance or visual quality, said the company. Applying L4, RLE (run length encoding) or LZW9 algorithms to items expressed in the efficient L8 format, supported by TouchGFX and the STM32 Chrom-ART Accelerator, achieves a compression factor from 20 to 99 per cent.
The compression settings can be individually adjusted in TouchGFX Image Manager. This is a new feature which lets designers choose lower density flash ICs for the UI controller hardware and hence lower their application’s bill of materials.
The second change in TouchGFX 4.22 is Live Callouts. The TouchGFX team will draw the user’s attention to tips and tricks, specific features, or opportunities while in the TouchGFX Designer environment.
TouchGFX is available free of charge and is part of the STM32 microcontroller development ecosystem. It keeps the developer in control, said ST and is recommended for UI on STM32 MCUs, leveraging the MCUs’ hardware graphics features including the Chrom-ART and NeoChrom GPU Accelerators.
TouchGFX 4.22 is available now to download from www.st.com/touchgfx.
