Error correction system

An error correction system, applied to a storage system, wherein the storage system is configured to write or read a plurality of pieces of data during a reading operation or writing operation, the plurality of pieces of data are divided into M bytes, each byte has N pieces of data located in respective bits;

• the storage system has an encoding stage and a decoding stage, in the decoding stage, the error correction system is configured to generate X first operation codes, Y second operation codes and a third operation code based on the storage system, the X first operation codes, the Y second operation codes and the third operation code are used to determine error states of the plurality of pieces of data, and when the plurality of pieces of data have a 1-bit error, the Y second operation codes are used to locate a specific byte to which the 1-bit error belongs, and the X first operation codes are used to locate a specific bit to which the 1-bit error belongs, and wherein the error correction system comprises:
• an error state determining circuit, configured to execute decoding processing on the X first operation codes, the Y second operation codes and the third operation code to identify a current error state;
• and
• M decoding circuits, each decoding circuit corresponding to one byte, configured to execute decoding processing on the X first operation codes and the Y second operation codes, to obtain whether there is erroneous data in the byte and locate a bit to which the erroneous data belongs.