HARDWARE BASED CYCLIC REDUNDANCY CHECK (CRC) RE-CALCULATOR FOR TIMESTAMPED FRAMES OVER A DATA BUS

A method and a system for correcting cyclic redundancy check (CRC) for a frame with last bytes changed are provided. The method includes acquiring a data frame, calculating a CRC of a modified data frame, and determining a corrected CRC for the data frame based on at least the CRC of the modified da...

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Bibliographische Detailangaben
Hauptverfasser: GAMBHIR, Jaspreet Singh, PURI, Jitendra, DE, Jishnu
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method and a system for correcting cyclic redundancy check (CRC) for a frame with last bytes changed are provided. The method includes acquiring a data frame, calculating a CRC of a modified data frame, and determining a corrected CRC for the data frame based on at least the CRC of the modified data frame and a CRC correction field calculated on the bytes to be replaced at the end of the frame. An altered data frame includes the data frame with a number of last bytes of the data frame replaced with new bytes.