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github-classroom[bot]
2024-02-23 13:01:05 +00:00
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02-SplineInterpolator/SplineInterpolator/hdl/sineTable_studentVersion.vhd Normal file
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ARCHITECTURE studentVersion OF sineTable IS
signal phaseTableAddress : unsigned(tableAddressBitNb-1 downto 0);
signal quarterSine : signed(sine'range);
BEGIN
phaseTableAddress <= phase(phase'high-2 downto phase'high-2-tableAddressBitNb+1);
quarterTable: process(phaseTableAddress)
begin
case to_integer(phaseTableAddress) is
when 0 => quarterSine <= to_signed(16#0000#, quarterSine'length);
when 1 => quarterSine <= to_signed(16#18F9#, quarterSine'length);
when 2 => quarterSine <= to_signed(16#30FB#, quarterSine'length);
when 3 => quarterSine <= to_signed(16#471C#, quarterSine'length);
when 4 => quarterSine <= to_signed(16#5A82#, quarterSine'length);
when 5 => quarterSine <= to_signed(16#6A6D#, quarterSine'length);
when 6 => quarterSine <= to_signed(16#7641#, quarterSine'length);
when 7 => quarterSine <= to_signed(16#7D89#, quarterSine'length);
when others => quarterSine <= (others => '-');
end case;
end process quarterTable;
sine <= (others => '0');
END ARCHITECTURE studentVersion;