CrossWorks for ARM vs NuEclipse

CrossWorks for ARM is a C/C++ and assembly development system for ARM and Cortex microcontrollers. Its CrossStudio IDE brings editing, building, downloading and SWD/JTAG debugging into one environment. The package includes GNU GCC and Clang/LLVM toolchains, and its multi-core debugger also works with applications built using external toolchains. Supported cores range from Cortex-M, Cortex-A and Cortex-R to ARM7, ARM9, ARM11, Feroceon and XScale. Supported connections include CrossConnect Neo, SEGGER J-Link, CMSIS-DAP, ST-LINK and FTDI-based JTAG devices. It also includes an embedded C runtime library that is neither GPL nor LGPL, and a royalty-free tasking library for pre-emptive task switching and synchronization. Downloads for Windows, macOS and Linux include x64 and ARM64 or Apple Silicon builds. The evaluation can remain active with a 16KB code-size limit or be unlocked for 30 days. A Named Developer License is $2,500 as a one-time purchase; a Shared Developer License is $3,750 as a one-time purchase. Both include commercial use, 12 months of support and 12 months of software assurance.

NuEclipse is Nuvoton’s free development environment for creating, building, and debugging NuMicro projects on Windows and Linux. The NuMicro 8051 edition targets NuMicro 8-bit devices, while the ARM edition supports NuMicro Cortex-M projects and NuMicro Cortex-A bare-metal projects. Nuvoton lists SDCC for the 8-bit variant and GCC for Cortex-M. Both variants use the Nu-Link debugger, with integrated debugging and flashing. The listed ARM downloads for Windows and Linux are version V1.02.029, dated 2025-03-06. Nuvoton also lists a NuMicro Cortex-M Pack for Visual Studio Code, supporting project building, programming, and debugging on Windows and Linux. Both NuEclipse plans cost nothing. The maker links to technical support, a technical community, a learning center, FAQs, and technical blogs. Nuvoton was founded in 2008 and is headquartered in Hsinchu, Taiwan. Its stated focus includes microcontroller and audio, cloud security, battery monitoring, component, and visual sensing ICs. Security guidance asks for encrypted vulnerability reports and allows seven business days for an initial response.