Packet ID in Service 1 Failure Reports

pnp-software / cordetfw

C Implementation of a Software Framework for Service-Oriented Applications with PUS Support

Mozilla Public License 2.0

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Packet ID in Service 1 Failure Reports #134

Open pasetti opened 6 years ago

pasetti commented 6 years ago

Failure reports in service 1 carry the Packet ID of the telecommand they are acknowledging. In the old PUS, this field had a size of 16 bits and consisted of (see clause 5.4.1):

Packet version number (3 bits)
Packet type (1 but)
Secondary header flag (1 but)
APID (11 bits)

In the new PUS, instead this field only has a size of 13 bits and it excludes the packet version number (see clause 8.1.2.2). Is this rather confusing change intentional?

pasetti commented 6 years ago

This issue has been submitted as an ecss change request.