METHOD OF DETECTING AND CORRECTING ERRORS WITH BCH ENGINES FOR FLASH STORAGE SYSTEM
A method of detecting and correcting errors with BCH engines for flash storage system is provided and the steps of the method comprise: deciding the number i of sub-channels CH1˜CHi divided from a data channel; deriving a width selection of each sub-channel CHi; checking if the sum of width of each sub-channel CHi is equal to the data channel or not; if yes, run next step; if not, go back to the precious step; and connecting each BCH engine BCHi to each sub-channel CHi with a bus by one-by-one mapping.
1 . A method of detecting and correcting errors with BCH engines for flash storage system, the steps comprising:
step S 1 : deciding the number i of sub-channels CH 1 ˜CHi divided from a data channel;
step S 2 : deriving a width selection of each sub-channel CHi;
step S 3 : checking if the sum of width of each sub-channel CHi is equal to the data channel or not; if yes, run next step; if not, go back to the step S 2 ; and
step S 4 : connecting each BCH engine BCHi to each sub-channel CHi with a bus by one-by-one mapping.
2 . The method as claimed in claim 1 , wherein the widths of each sub-channel CH 1 ˜CHi are identical.
3 . The method as claimed in claim 1 , wherein the widths of each sub-channel CH 1 ˜CHi are not identical.
4 . The method as claimed in claim 1 , wherein the widths of the sub-channel CHi and the corresponding BCH engine BCHi are the same.