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  1. Hi all, I downloaded this https://reference.digilentinc.com/_media/reference/pmod/pmodcls/pmodcls_demo.zip project and it outputs "Hello From Digilent" on pmodcls. I am having a problem in understanding following code, please help. type LOOKUP is array ( 0 to 33 ) of std_logic_vector (7 downto 0); -- Hexadecimal values below represent ASCII characters constant command : LOOKUP := ( X"1B", X"5B", X"6A", X"1B", X"5B", X"30", X"3B", X"33", X"48", X"48",--'H' X"65",--'e' X"6C",--'l' X"6C",--'l' X"6F",--'o' X"20", X"46",--'F' X"72",--'r' X"6F",--'o' X"6D",--'m' X"1B", X"5B", X"31", X"3B", X"34", X"48", X"44",--'D' X"69",--'i' X"67",--'g' X"69",--'i' X"6C",--'l' X"65",--'e' X"6E",--'n' X"74",--'t' X"00"); I am not able to understand rest of characters used above. What do characters in above code apart from "Hello From Digilent" mean and what is their use?