Methods and systems for error-detecting during iterative decoding

A system comprising:

• a memory;
• and
• processing circuitry, configured to:
• receive a plurality of portions of the data and an expected error-detecting code value corresponding to the data;
• calculate an overall error-detecting code value of the data;
• compare the overall error-detecting code value to the expected error-detecting code value;
• and
• in response to a determination that the overall error-detecting code value does not match the expected error-detecting code value based on the comparison:
• identify at least one portion of the plurality of portions of the data as corresponding to an incorrect error-detecting code state;
• for each respective portion of the identified at least on portion:
• step to the respective portion of the identified at least one portion;
• and
• correct the respective identified portion of the identified at least one portion of the data that corresponds to the incorrect error-detecting code state to generate a corrected plurality of portions of data;
• and
• set the incorrect error-detecting code state that corresponds to each of the identified at least one portion of the data to a correct error-detecting code state.

A non-transitory computer-readable medium having non-transitory computer- readable instructions encoded thereon that, when executed by processing circuitry, cause the processing circuitry to:

• receive a plurality of portions of the data and an expected error-detecting code value corresponding to the data;
• calculate an overall error-detecting code value of the data;
• compare the overall error-detecting code value to the expected error-detecting code value;
• and
• in response to a determination that the overall error-detecting code value does not match the expected error-detecting code value based on the comparison:
• identify at least one portion of the plurality of portions of the data as corresponding to an incorrect error-detecting code state;
• for each respective portion of the identified at least on portion:
• step to the respective portion of the identified at least one portion;
• and
• correct the respective identified portion of the identified at least one portion of the data that corresponds to the incorrect error-detecting code state to generate a corrected plurality of portions of data;
• and
• set the incorrect error-detecting code state that corresponds to each of the identified at least one portion of the data to a correct error-detecting code state.