Method and device for checking data, electronic device, and storage medium

A device for checking data, comprising:

• a read-write circuit configured to read a memory array to obtain read data;
• a compression circuit configured to compress the read data to obtain first compressed data;
• and
• a checking circuit configured to:
• compare the first compressed data with second compressed data, wherein the second compressed data is obtained by compressing written data corresponding to the read data;
• detect, in responsive to that the first compressed data is consistent with the second compressed data, whether data of a predetermined bit in the read data is consistent with pre-stored original bit data to determine whether the read data is correct;
• and
• determine, in responsive to that the data of the predetermined bit in the read data is consistent with the pre-stored original bit data, that the read data is correct, and determine, in responsive to that the data of the predetermined bit in the read data is inconsistent with the pre-stored original bit data, that the read data is incorrect, wherein the original bit data is data of the predetermined bit in the written data corresponding to the read data;
• the compression circuit further configured to compress the written data to obtain the second compressed data,
• a selection circuit configured to extract the data of the predetermined bit in the written data;
• and
• the read-write circuit configured to store the second compressed data and the data of the predetermined bit in the written data, and write the written data into the memory array.

An electronic device, comprising:

• a processor;
• and
• a memory in communication connection with the processor,
• wherein the memory stores computer-executable instructions;
• and
• the processor executes the computer-executable instructions stored in the memory to implement:
• reading a memory array to obtain read data, and compressing the read data to obtain first compressed data;
• comparing the first compressed data with second compressed data, wherein the second compressed data is obtained by compressing written data corresponding to the read data;
• detecting, in responsive to that the first compressed data is consistent with the second compressed data, whether data of a predetermined bit in the read data is consistent with pre-stored original bit data to determine whether the read data is correct;
• and
• determining, in responsive to that the data of the predetermined bit in the read data is consistent with the pre-stored original bit data, that the read data is correct, and determining, in responsive to that the data of the predetermined bit in the read data is inconsistent with the pre-stored original bit data, that the read data is incorrect, wherein the original bit data is data of the predetermined bit in the written data corresponding to the read data;
• and,
• wherein the processor executes the computer-executable instructions stored in the memory to implement:
• compressing the written data to obtain the second compressed data;
• extracting the data of the predetermined bit in the written data;
• and
• storing the second compressed data and the data of the predetermined bit in the written data, and writing the written data into the memory array.