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SPECIFICTION
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NuEclipse

nuvoton.com

Free plan WindowsLinux
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Spec score 7.1 #24 of 29 in Embedded Development IDEs

What it is

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.

Spec sheet

Purpose
NuEclipse for NuMicro 8051 lets users create, build, and debug projects on 64-bit Windows and Linux.Read 7 Oct 2026 · nuvoton.com
Headquarters
Hsinchu, TaiwanRead 28 Sep 2026 · nuvoton.com
Founded
Nuvoton says it was spun off as a Winbond Electronics affiliate in July 2008.Read 7 Oct 2026 · nuvoton.com
ARM target support
NuEclipse for NuMicro ARM lets users create, build, and debug NuMicro Cortex-M projects and NuMicro Cortex-A bare-metal projects.Read 7 Oct 2026 · nuvoton.com
Company focus
Nuvoton says it focuses on microcontroller/audio, cloud security, battery monitoring, component, and visual sensing ICs.Read 7 Oct 2026 · nuvoton.com
Compiler variants
The maker lists NuEclipse variants using SDCC for NuMicro 8-bit and GCC for NuMicro Cortex-M.Read 7 Oct 2026 · nuvoton.com
Debugger
The IDE table lists Nu-Link as the debugger for both NuEclipse variants.Read 7 Oct 2026 · nuvoton.com
Latest listed ARM release
The listed Windows and Linux NuEclipse ARM downloads are version V1.02.029, dated 2025-03-06.Read 7 Oct 2026 · nuvoton.com
Security reporting
Nuvoton asks that potential product vulnerabilities be reported to its Product Security Incident Response Team and strongly urges encrypting email reports.Read 7 Oct 2026 · nuvoton.com
Security response
Nuvoton says to allow seven business days for an initial response to vulnerability reports.Read 7 Oct 2026 · nuvoton.com
Support resources
The maker's site links to technical support, a technical community, a learning center, FAQs, and technical blogs.Read 7 Oct 2026 · nuvoton.com
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.Read 7 Oct 2026 · nuvoton.com

Plans and prices

NuEclipse (GCC) Free NuMicro Cortex-M · Nu-Link debugger Read 7 Oct 2026 · nuvoton.com
NuEclipse (SDCC) Free NuMicro 8-bit · Nu-Link debugger Read 7 Oct 2026 · nuvoton.com

Every NuEclipse plan and price →

Strong points and limits

Strong points

  • Free SDCC and GCC variants
  • Supports Windows and Linux
  • Nu-Link debugger is listed
  • Integrated debugging and flashing
  • Cortex-M Visual Studio Code pack available

Limits

  • Targets are limited to NuMicro devices
  • ARM release listed as version V1.02.029
  • Security reports may take seven business days for initial response

Who it suits

NuEclipse suits developers building NuMicro 8-bit, Cortex-M, or Cortex-A bare-metal projects on Windows or Linux. It also fits teams wanting Nu-Link debugging and flashing at no plan cost.

Verdict

NuEclipse provides free Windows and Linux tools for NuMicro development, with compiler-specific variants and Nu-Link support. Its separate Visual Studio Code pack extends Cortex-M workflows beyond the IDE.

Where Specifiction places it

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