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Add unpacker for the v301b and v302a data formats

Antonello Pellecchia requested to merge feature/unpacker into main


This MR adds an unpacker supporting the v301b (CMS prior to August 2022 & GEM 2021 TB) and v302a (CMS since August & GEM spring 2022 TB) data formats. Additionally, a RAW-to-test tool is provided as proof of functionality. It can used for debugging, both of the unpacker or the data format.

Related Issue

Fixes #200 (closed).

How Has This Been Tested?

Can decode to text the following raw files:

  • GEM 2021 TB (v301b)
  • CMS Oct latency scan (v302a)

Types of changes

  • Bug fix (non-breaking change which fixes an issue)
  • New feature (non-breaking change which adds functionality)
  • Breaking change (fix or feature that would cause existing functionality to change)


  • My code follows the code style of this project.
  • My change requires a change to the documentation.
  • I have updated the documentation accordingly.
  • I have read the CONTRIBUTING document.
  • I have added tests to cover my changes.
  • All new and existing tests passed.
Edited by Laurent Petre

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