XTCE12 — Bit extract feature needed in telemetry parameter

Specific syntax associating bits from one or more parent parameters to create a new parameter in the Parameter element is needed. Currently XTCE supports this concept at the container (ParameterSegmentEntryRef) level, and in theory by using an algorithm. However containers associated with some parameters may not always be defined in XTCE, and algorithmic descriptions are difficult to exchange. Note original reporter is JPL.

Functionality exists in XTCE 1.2 proposed changes

There are at least two ways to do this that have been proven.

The first case is to use a derived TM parameter with bit operators (added in XTCE 1.2).

The second case is to use a SequenceContainer to layout conventional TM parameters across the appropriate bits.