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NuEclipse
Hsinchu, Taiwan
What it is
NuEclipse is Nuvoton’s free development environment for creating, building, and debugging NuMicro projects on 64-bit Windows and Linux. The NuMicro 8051 version targets NuMicro 8-bit devices. An ARM version supports NuMicro Cortex-M projects and NuMicro Cortex-A bare-metal projects; listed ARM downloads are version V1.02.029 dated 2025-03-06. Nuvoton lists an SDCC variant for NuMicro 8-bit and a GCC variant for NuMicro Cortex-M, with Nu-Link as the debugger for both. Integrated debugging and flashing are listed. For Cortex-M work, a separate NuMicro Cortex-M Pack for Visual Studio Code supports building, programming, and debugging on Windows and Linux. 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 security guidance asks for encrypted vulnerability reports and says an initial response may take seven business days.
For and against
For
- Free SDCC and GCC variants
- Supports Windows and Linux
- Includes Nu-Link debugging
- Provides integrated flashing
- Supports Cortex-A bare metal
Against
- Targets Nuvoton NuMicro devices
- ARM download version is dated 2025-03-06
- Security reports may take seven business days
The verdict
NuEclipse provides free, vendor-focused tools for building and debugging NuMicro projects across Windows and Linux. Its separate compiler variants and Visual Studio Code option give developers multiple supported workflows.
Who it suits
It suits developers building NuMicro 8-bit, Cortex-M, or Cortex-A bare-metal projects on Windows or Linux. Cortex-M users can also use the listed Visual Studio Code pack.
Plans and prices
NuEclipse (GCC)
NuMicro Cortex-M · Nu-Link debugger
Read 7 Oct 2026 · nuvoton.com
NuEclipse (SDCC)
NuMicro 8-bit · Nu-Link debugger
Read 7 Oct 2026 · nuvoton.com
On the record
- ARM target support
- NuEclipse for NuMicro ARM lets users create, build, and debug NuMicro Cortex-M projects and NuMicro Cortex-A bare-metal projects.nuvoton.com · read 7 Oct 2026
- Company focus
- Nuvoton says it focuses on microcontroller/audio, cloud security, battery monitoring, component, and visual sensing ICs.nuvoton.com · read 7 Oct 2026
- Compiler variants
- The maker lists NuEclipse variants using SDCC for NuMicro 8-bit and GCC for NuMicro Cortex-M.nuvoton.com · read 7 Oct 2026
- Debugger
- The IDE table lists Nu-Link as the debugger for both NuEclipse variants.nuvoton.com · read 7 Oct 2026
- Latest listed ARM release
- The listed Windows and Linux NuEclipse ARM downloads are version V1.02.029, dated 2025-03-06.nuvoton.com · read 7 Oct 2026
- Purpose
- NuEclipse for NuMicro 8051 lets users create, build, and debug projects on 64-bit Windows and Linux.nuvoton.com · read 7 Oct 2026
- Security reporting
- Nuvoton asks that potential product vulnerabilities be reported to its Product Security Incident Response Team and strongly urges encrypting email reports.nuvoton.com · read 7 Oct 2026
- Security response
- Nuvoton says to allow seven business days for an initial response to vulnerability reports.nuvoton.com · read 7 Oct 2026
- Support resources
- The maker's site links to technical support, a technical community, a learning center, FAQs, and technical blogs.nuvoton.com · read 7 Oct 2026
- VS Code option
- Nuvoton also lists a NuMicro Cortex-M Pack for Visual Studio Code that enables building, programming, and debugging projects on Windows and Linux.nuvoton.com · read 7 Oct 2026