Module cop1 

COP-1 (CCSDS 232.1-B-2) state machines. CCSDS Communications Operation Procedure-1 (COP-1).

Spec: CCSDS 232.1-B-2 (https://ccsds.org/Pubs/232x1b2e2c1.pdf).

COP-1 provides hop-by-hop reliable delivery of TC transfer frames over a single link using go-back-N ARQ. It consists of:

• FOP-1 (sender): sequences AD frames, retransmits on NACK/timeout.
• FARM-1 (receiver): validates sequence numbers, generates CLCWs.
• CLCW: 32-bit feedback word carried in TM/AOS frames.

Modules

clcw

Communications Link Control Word (CLCW).

farm

FARM-1 (Frame Acceptance and Reporting Mechanism).

fop

FOP-1 (Frame Operation Procedure) sender state machine.