Digilent DIO5 Manual do Utilizador descarregar pdf (Página 19)

DIO5 Reference Manual Digilent, Inc.

www.digilentinc.com Page 19

ssg <= "0111111" when dig = "0000" else

"0000110" when dig = "0001" else

"1011011" when dig = "0010" else

"1001111" when dig = "0011" else

"1100110" when dig = "0100" else

"1101101" when dig = "0101" else

"1111101" when dig = "0110" else

"0000111" when dig = "0111" else

"1111111" when dig = "1000" else

"1101111" when dig = "1001" else

"1110111" when dig = "1010" else

"1111100" when dig = "1011" else

"0111001" when dig = "1100" else

"1011110" when dig = "1101" else

"1111001" when dig = "1110" else

"1110001" when dig = "1111" else

"0000000";

-- Digit multiplexor. The anode for each digit in enabled

-- in succession, and the appropriate cathode data is muxed onto

-- the cathode lines while the corresponding anode is driven.

an <= "1110" when cntDig = "00" else

"1101" when cntDig = "01" else

"1011" when cntDig = "10" else

"0111" when cntDig = "11" else

"1111";

dig <= regSsg(15 downto 12) when cntDig = "00" else

regSsg(11 downto 8) when cntDig = "01" else

regSsg( 7 downto 4) when cntDig = "10" else

regSsg( 3 downto 0);

-- Map the internal signals to the pins on the CPLD.

rgbSsgAn <= an;

rgbSsgCa <= '1' & (not ssg);

kclk <= kcin;

kdat <= kdin;

end Behavioral;

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Digilent DIO5 Manual do Utilizador Página 19