ERMII encoding lookup tables optimized with different goals

To run test:

Step 1. Put all files in one folder

Step 2. Uncomment loading of desired encoding .mat file in the begining of test__6b8b.m

Step 2. Run test__6b8b.m in Octave v.4.2.2 or higher (should be possible to run also in MATLAB)

To encode your own data:

Step 1. Load enc_data lookup table from desired encoding .mat file

Step 2. Devide your data on 6b data blocks If you data length is not multiple of 6 add additional zeros to make last data block length be equal to 6 bit.

Step 3. To encode each data block you should read value from enc_data lookup table cell with address ((nb<<6)||db)+1, where nb - is first bit pair of the next data block and db - is 6 bit data block.  For the last data block nb = 0;

To decode your own data:

Step 1. Load dec_data lookup table from desired encoding .mat file

Step 2. Devide your encoded data on 8b data blocks

Step 3. To decode each data block you should read value from dec_data lookup table cell with address ((nb<<8)||eb)+1, where nb - is first bit pair of the next encoded data block and eb - is 8 bit encoded data block.  For the last data block nb = 0;

If dec_data returns value above 63 then encoded data block was invalid, but decoder tries to fix this error. For such entries 64 should be substructed from dec_data output. If dec_data returns 128, then input encoded block includes error, which cannot be automatically fixed.