Arm Keil MDK vs Processing

Arm Keil MDK is a toolchain for embedded software targeting Cortex-M and Ethos-U processors. MDK v6 supports command-line, IDE, and continuous-integration workflows across major operating systems. It includes Keil Studio extensions for Visual Studio Code, Keil μVision, Arm Compiler for Embedded, and Arm Fixed Virtual Platform models. Software packs add device and board support, middleware, components, code templates, and example projects independently of the toolchain. Keil Studio supports CMSIS workflows with an integrated debugger and extensions for creating, building, and testing embedded applications. Listed integrations include CMSIS-FreeRTOS, Keil RTX5, MDK-Middleware, IoT clients, CMSIS-DAP, ULink, and third-party debug adapters. Community is for non-commercial use. The listed MDK v6 Essential plan costs $99 a month per license; Professional costs $199 a month per license and adds Arm Virtual Hardware, functional-safety compiler tools, and legacy tools including Arm Compiler 5. Keil μVision is available only for Windows hosts.

Processing is a free, open-source development tool for creating visual and interactive media, including graphics, animations, and interactive installations. It began as a software sketchbook and a way to teach programming through visual work, and has developed into a tool for professionals. The Processing Development Environment combines a text editor, compiler, and display window for creating and running sketches. The default renderer handles two-dimensional graphics, while P3D supports three-dimensional graphics. Community libraries add capabilities such as sound, computer vision, and advanced 3D geometry. Included tools support sketch archiving, font creation, color selection, and movie making. Core libraries cover network communication, serial connections to external hardware, audio, video, and PDF or SVG export. A command-line interface runs sketches from a terminal, including automated or headless setups. Processing runs locally on macOS, Windows, and Linux and does not collect, track, store, or share user data. Its update check can be disabled. The Processing Forum supports questions and work sharing. The free plan costs nothing.