ccsds_ada

SPARK-proved CCSDS protocol suite for Ada 2022. Implements Space Packet Protocol (133.0-B-1), Time Code Formats (301.0-B-4 CUC/CDS), AOS Transfer Frame (732.0-B-4) with FECF, Encapsulation Packet (133.1-B-3), CFDP PDU (727.0-B-5) with optional CRC, SLE identifiers (132.0-B-3), and the CRC-16-CCITT-FALSE primitive used by AOS and CFDP. 100% formally verified at SPARK Level 2 (440 proof obligations, 0 unproved). No heap allocation, pragma Pure, suitable for embedded flight software and safety-critical ground systems.