: If you do not have a paid license, you can often find the trial/Lite version by visiting the MDK-ARM Download Page and filling out the registration form. While this usually provides the latest version, specific older versions like 5.25 are sometimes available via direct links provided by hardware manufacturers like Wiznet for their specific modules. Key Features of MDK-ARM v5.25

Keil MDK-ARM version 5.25 is an integrated development environment (IDE) specifically designed for ARM Cortex-M based microcontrollers. Released around early 2018, this version introduced several debugging and analysis features, including the for visualizing power consumption and execution events over time. Download and Access

Released as a stable iteration of the MDK 5 series, version 5.25 offers a robust environment for developing applications for ARM Cortex-M, Cortex-R, and legacy ARM7/ARM9 devices. It combines the efficient µVision IDE with the highly optimizing ARM C/C++ Compiler.