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code2ascii.vhd.bak
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LIBRARY ieee ;
USE ieee.std_logic_1164.all ;
entity code2ascii is
port (
capital_en : in std_logic;
key_code : in std_logic_vector(15 downto 0);
key_ascii : out std_logic_vector(7 downto 0)
);
end code2ascii;
architecture tradution of code2ascii is
signal capsnkey : std_logic_vector (19 downto 0);
begin
capsnkey <= "000" & capital_en & key_code;
with capsnkey select
key_ascii <= -- a - z
x"61" when x"0001C",
x"62" when x"00032",
x"63" when x"00021",
x"64" when x"00023",
x"65" when x"00024",
x"66" when x"0002B",
x"67" when x"00034",
x"68" when x"00033",
x"69" when x"00043",
x"6A" when x"0003B",
x"6B" when x"00042",
x"6C" when x"0004B",
x"6D" when x"0003A",
x"6E" when x"00031",
x"6F" when x"00044",
x"70" when x"0004D",
x"71" when x"00015",
x"72" when x"0002D",
x"73" when x"0001B",
x"74" when x"0002C",
x"75" when x"0003C",
x"76" when x"0002A",
x"77" when x"0001D",
x"78" when x"00022",
x"79" when x"00035",
x"7A" when x"0001A",
-- 0 - 9 (teclado)
x"30" when x"00045",
x"31" when x"00016",
x"32" when x"0001E",
x"33" when x"00026",
x"34" when x"00025",
x"35" when x"0002E",
x"36" when x"00036",
x"37" when x"0003D",
x"38" when x"0003E",
x"39" when x"00046",
-- 0 - 9 (keypad)
x"30" when x"00070",
x"31" when x"00069",
x"32" when x"00072",
x"33" when x"0007A",
x"34" when x"0006B",
x"35" when x"00073",
x"36" when x"00074",
x"37" when x"0006C",
x"38" when x"00075",
x"39" when x"0007D",
-- A - Z (Capital)
x"41" when x"1001C",
x"42" when x"10032",
x"43" when x"10021",
x"44" when x"10023",
x"45" when x"10024",
x"46" when x"1002B",
x"47" when x"10034",
x"48" when x"10033",
x"49" when x"10043",
x"4A" when x"1003B",
x"4B" when x"10042",
x"4C" when x"1004B",
x"4D" when x"1003A",
x"4E" when x"10031",
x"4F" when x"10044",
x"50" when x"1004D",
x"51" when x"10015",
x"52" when x"1002D",
x"53" when x"1001B",
x"54" when x"1002C",
x"55" when x"1003C",
x"56" when x"1002A",
x"57" when x"1001D",
x"58" when x"10022",
x"59" when x"10035",
x"5A" when x"1001A",
-- 0 - 9 (teclada com Capital ativo)
x"30" when x"10045",--0
x"31" when x"10016",--1
x"32" when x"1001E",--2
x"33" when x"10026",--3
x"34" when x"10025",--4
x"35" when x"1002E",--5
x"36" when x"10036",--6
x"37" when x"1003D",--7
x"38" when x"1003E",--8
x"39" when x"10046",--9
-- 0 - 9 (keypad com Capital ativo)
x"30" when x"10070",--0
x"31" when x"10069",--1
x"32" when x"10072",--2
x"33" when x"1007A",--3
x"34" when x"1006B",--4
x"35" when x"10073",--5
x"36" when x"10074",--6
x"37" when x"1006C",--7
x"38" when x"10075",--8
x"39" when x"1007D",--9
x"00" when others;
end tradution;