ECC¶
A collection of error correction code (ECC) algorithms.
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Hamming_ERROR_NONE¶ Hamming Code implementation for 256byte data segments.
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Hamming_ERROR_SINGLEBIT¶ A single bit was incorrect but has been recovered.
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Hamming_ERROR_ECC¶ The original code has been corrupted.
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Hamming_ERROR_MULTIPLEBITS¶ Multiple bits are incorrect in the data and they cannot be corrected.
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void
hamming_compute256x(const uint8_t * data, uint32_t size, uint8_t * code)¶ Computes 3-bytes hamming codes for a data block whose size is multiple of 256 bytes.
Each 256 bytes block gets its own code.
Parameters
data: Data to compute code for. size: Data size in bytes. code: Codes buffer.
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uint8_t
hamming_verify256x(uint8_t * data, uint32_t size, const uint8_t * code)¶ Verifies 3-bytes hamming codes for a data block whose size is multiple of 256 bytes.
Each 256-bytes block is verified with its own code.
Parameters
data: Data buffer to verify. size: Size of the data in bytes. code: Original codes. Return values
- Hamming_ERROR_NONE if the data is correct, Hamming_ERROR_SINGLEBIT if one or more block(s) have had a single bit corrected, or either Hamming_ERROR_ECC or Hamming_ERROR_MULTIPLEBITS.