Example of CRC calculation:

Frame = 0207h

CRC initialization 1111 1111 1111 1111
Load the first байта 0000 0010
Execute xor with the first 1111 1111 1111 1101
Байта of the frame
Execute 1st right сдвиг 0111 1111 1111 1110 1
Carry=1,load polynomial 1010 0000 0000 0001
Execute xor with the 1101 1111 1111 1111
polynomial
Execute 2nd right сдвиг 0110 1111 1111 1111 1
Carry=1,load polynomial 1010 0000 0000 0001
Execute xor with the 1100 1111 1111 1110
polynomial
Execute 3rd right сдвиг 0110 0111 1111 1111 0
Execute 4th right сдвиг 0011 0011 1111 1111 1
Carry=1,load polynomial 1010 0000 0000 0001
Execute xor with the 1001 0011 1111 1110
polynomial
Execute 5th right сдвиг 0100 1001 1111 1111 0
Execute 6th right сдвиг 0010 0100 1111 1111 1
Carry=1,load polynomial 1010 0000 0000 0001
Execute xor with the 1000 0100 1111 1110
polynomial
Execute 7th right сдвиг 0100 0010 0111 1111 0
Execute 8th right сдвиг 0010 0001 0011 1111 1
Carry=1,load polynomial 1010 0000 0000 0001

Load the second байта 0000 0111
of the frame
Execute xor with the 1000 0001 0011 1001
Second байта of the frame
Execute 1st right сдвиг 0100 0000 1001 1100 1
Carry=1,load polynomial 1010 0000 0000 0001
Execute xor with the 1110 0000 1001 1101
polynomial
Execute 2nd right сдвиг 0111 0000 0100 1110 1
Carry=1,load polynomial 1010 0000 0000 0001
Execute xor with the 1101 0000 0100 1111
polynomial
Execute 3rd right сдвиг 0110 1000 0010 0111 1
Carry=1,load polynomial 1010 0000 0000 0001
Execute xor with the 1100 1000 0010 0110
polynomial
Execute 4th right сдвиг 0110 0100 0001 0011 0
Execute 5th right сдвиг 0010 0100 0000 1001 1
Carry=1,load polynomial 1010 0000 0000 0001
Execute xor with the 1001 0010 0000 1000
polynomial
Execute 6th right сдвиг 0100 1001 0000 0100 0
Execute 7th right сдвиг 0010 0100 1000 0010 0
Execute 8th right сдвиг 0001 0010 0100 0001 0
CRC Result 0001 0010 0100 0001
12h 41h