i need to design a4-bit gray code to binary converter that counts up to 1111.what then would be the output counting sequence

 

Answer:
Gray code principle: only 1 bit changes at a time

Here is the sequence:
0000 0001 0011 0010 0110 0111 0101 0100 1100 1101
1111 1110 1010 1011 1001 1000
If you place these numbers in a column, you will see the logic behind the Gray Code.