Data Integrity for Embedded Systems | CRC vs Checksum Explained in C
CRC and checksum are essential techniques for detecting corrupted data in embedded systems. This tutorial explains how checksums and CRCs work, their differences, limitations, and practical applications in UART, CAN, Modbus, firmware updates, and file storage. The video also includes simple C examples for implementing an 8-bit checksum and CRC-16. Topics covered: • Why digital data becomes corrupted • How an additive checksum works • Simple checksum implementation in C • Limitations of basic checksums • How CRC polynomial division works • CRC-16 implementation in C • CRC vs checksum comparison • UART, CAN, Modbus, storage, and firmware use cases Checksum is fast and simple, while CRC provides stronger protection against burst errors and complex corruption patterns. #CRC #Checksum #DataIntegrity
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