Integrated Development Environment for some microcontrollers based on 8051(e.g. AT89S8253). Supported languages are Assembly and C. It has its own simulator, assembler, editor and many other tools. See the project web site for more details and the newest updates.


  • MCU Simulator
  • Support for C language (with SDCC compiler)
  • Macro assembler
  • Advanced source code editor
  • Hardware tools
  • Disassembler
  • Simulation of simple peripheral devices, like LED displays, etc.
  • Hexadecimal editor
  • Scientific calculator
  • ... many more ...

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User Ratings

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User Reviews

  • Not usable. Buggy. Pkgs do not load when needed. Documentation weak. Features missing. Standard #pramas not supported. Standard C datatypes not all supported. Cannot use for my project.

  • geriausias kada nors įrankis turiu yra visiškai plėtros priemonė. jis jau seniai ateitis, parodyti 8051 šaknis kiekvienam studentui ir mėgėjų. gali padaryti tam tikrų patobulinimų, pridedant didelis rinkinys 8051 variantų arba teikti addon sukurti pasirinktinį 8051 mikrovaldiklį atitiktų vartotojo prietaise specifikacijas

  • best ever tool i have is a complete development tool. it has long future to show the 8051 roots to every student and hobbyists. can make some improvements by adding large set of 8051 variants or providing a addon to create a custom 8051 microcontroller to match the specifications of the user device.

  • Excellent work.

  • Perfect project, thank you for sharing

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Additional Project Details


English, Chinese (Traditional)

Intended Audience

Education, Developers, Engineering

User Interface


Programming Language

C++, Tcl