XCDL (eXtensible Component Definition Language) Wiki

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Contents

Introduction

This SourceForge project aims to define and implement an eXtensible Component Definition Language (CDL) intended to configure and build complex, package based, multi-variant (multi-architecture, multi-board, multi-toolchain) embedded projects. It is inspired by eCos CDL and ARM CMSIS Pack. The primary projects to benefit from XCDL are µOS++ IIIe (as content for the components) and GNU ARM Eclipse plug-ins (as tools to manage the components).

Credits

XCDL was definitely inspired by the eCos CDL, and many concepts are borrowed from it, including large excerpts from the eCos manuals, especially from The eCos Component Writer’s Guide.

The XCDL Eclipse implementation also maintains a good degree of compatibility with the current ARM CMSIS Packs (v1.x). More CMSIS Packs features are planned to be integrated, so that XCDL to be a superset of CMSIS Pack.

Reference implementations

The reference implementation will include one or more Eclipse plug-ins as graphical configuration tools (part of GNU ARM Eclipse plug-ins), and several Python command line tools for non graphical environments (source code part of this project).

Although targeted to Eclipse, these specifications should not prevent other development environments to implement them, so, if needed, these specifications might be amended to make alternate implementations possible.

Specifications & documentation

Reference

SRS

How to use

TBD

License

The XCDL software is released under the MIT License.

Miscellaneous

Old version (Python) pages

References

  • eCos - The embedded configurable operating system by Cygnus Solutions (Wikipedia)
  • Manual: The eCos Component Writer’s Guide, by Bart Veer and John Dallaway, published in 2001, available from eCos Documentation.
  • Book: Embedded software development with eCos, by Anthony J. Massa, published in 2003 at Prentice Hall, available from Amazon
  • Book: Software Build Systems: Principles and Experience, by Peter Smith, published in 2011 at Addison Wesley, available from Amazon
  • IEEE Std 830-1998: IEEE Recommended Practice for Software Requirements Specifications, published in 1998
  • OpenEmbedded - the build framework for embedded Linux (with more detail in the Yocto documentation)
  • CMSIS-Pack - ARM mechanism to install software, device support, APIs, and example projects

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