IAR Embedded Workbench vs nRF Connect for VS Code

IAR Embedded Workbench is an embedded development toolchain with an IDE, optimizing compiler, linker, assembler, and debugger. It supports over 20 architectures, including Arm, RISC-V, 8051, MSP430, AVR, and several Renesas families. The C-SPY debugger provides real-time trace, code coverage, function profiling, and RTOS awareness. IAR C-STAT offers static analysis; IAR C-RUN detects runtime errors and is available for Arm and RX. The toolchain works with VS Code and Eclipse, supports CMake builds, and can integrate with CI/CD pipelines. Supported debug probes include I-jet, I-jet Trace, J-Link, PE Micro, and ST-LINK. Built-in plugins provide RTOS awareness for systems including PX5 RTOS and Zephyr RTOS. The IDE runs natively on Linux and Windows. A 14-day evaluation is available for non-commercial use, but excludes runtime library source code, C-STAT, and MISRA C support and includes limited technical support. Paid subscription pricing is available by request; the subscription combines named-user licenses and build capacity for automated builds and CI/CD.

nRF Connect for VS Code is a free extension for developing, building, and debugging applications based on the nRF Connect SDK. It supports nRF91, nRF70, nRF53, and nRF52 Series devices, with interfaces to the compiler and linker and an RTOS-aware debugger. Configuration tools include a DeviceTree Visual Editor and a Create New Board wizard. The environment includes a built-in terminal and both command-line and graphical interfaces, with integrated flashing listed. The product consists of four Nordic extensions: nRF Connect for VS Code, nRF DeviceTree, nRF Kconfig, and nRF Terminal. Nordic says all four must be installed and used together for the product to work correctly with supported SDKs and provide all features. The main extension is available through the Visual Studio Code Marketplace; Nordic documentation also lists the extensions in the Open VSX Registry for VSIX-compatible editors. It runs on Windows, macOS, and Linux. Nordic identifies nRF Connect for Desktop and nRF Command Line Tools as additional desktop tools, and recommends its nRF Connect SDK Fundamentals course for getting started. Nordic Semiconductor is headquartered in Trondheim, Norway, and was established in 1983.