Data writing method and processing system

A processing system comprising:

• a memory comprising memory spaces, a data memory space, and a first ECC memory space;
• and
• a memory controller configured to:
• obtain first data that are to be written into the memory;
• determine, based on first error distribution area information of at least one memory space in the memory spaces, a first arrangement manner of a memory space occupied by a data symbol, wherein the data symbol occupies an 8-bit memory space of the memory spaces and the first arrangement manner comprises arrangement in 4 rows and 2 columns, 2 rows and 4 columns, 8 rows and 1 column, or 1 row and 8 columns, wherein the data symbol occupies a 16-bit memory space of the memory spaces and the first arrangement manner comprises arrangement in 4 rows and 4 columns, 8 rows and 2 columns, 2 rows and 8 columns, or 16 rows and 1 column, or wherein the data symbol occupies a 32-bit memory space of the memory spaces and the first arrangement manner comprises arrangement in 1 row and 32 columns, 32 rows and 1 column, 2 rows and 16 columns, 16 rows and 2 columns, 4 rows and 8 columns, or 8 rows and 4 columns;
• determine M data symbols of the first data based on the first arrangement manner, wherein each of the M data symbols comprises first data bits, and wherein M is an integer greater than or equal to 1;
• perform first error correction code (ECC) encoding on the M data symbols to obtain N redundant symbols, wherein each of the N redundant symbols comprises a first redundant bit, and wherein N is an integer greater than or equal to 1;
• write the M data symbols into the data memory space;
• and
• write the N redundant symbols into the first ECC memory space.

A computer program product comprising instructions that are stored on a non-transitory computer-readable storage medium and that, when executed by one or more processors, cause a processing system to:

• obtain first data that are to be written into a memory of the processing system;
• determine, based on first error distribution area information of at least one memory space in memory spaces of the memory, a first arrangement manner of a memory space occupied by a data symbol, wherein the data symbol occupies an 8-bit memory space of the memory spaces and the first arrangement manner comprises arrangement in 4 rows and 2 columns, 2 rows and 4 columns, 8 rows and 1 column, or 1 row and 8 columns, wherein the data symbol occupies a 16-bit memory space of the memory spaces and the first arrangement manner comprises arrangement in 4 rows and 4 columns, 8 rows and 2 columns, 2 rows and 8 columns, or 16 rows and 1 column, or wherein the data symbol occupies a 32-bit memory space of the memory spaces and the first arrangement manner comprises arrangement in 1 row and 32 columns, 32 rows and 1 column, 2 rows and 16 columns, 16 rows and 2 columns, 4 rows and 8 columns, or 8 rows and 4 columns;
• determine M data symbols of the first data based on the first arrangement manner, wherein each of the M data symbols comprises first data bits, and wherein M is an integer greater than or equal to 1;
• perform first error correction code (ECC) encoding on the M data symbols to obtain N redundant symbols, wherein each of the N redundant symbols comprises a first redundant bit, and wherein N is an integer greater than or equal to 1;
• write the M data symbols into a data memory space of the memory;
• and
• write the N redundant symbols into a first ECC memory space of the memory.