查看文章 VHDL十进制计数器2009-07-14 16:28library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_arith.all; use ieee.std_logic_unsigned.all; entity count10 is port (clk:in std_logic; f:buffer integer range 0 to 15; cout:out std_logic); end; architecture
十进制计数器、数码管扫描显示电路 主要程序如下： LED显示程序 library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_unsigned.all; entity tled is port(din: in std_logic_vector(7 downto 0); sn: out std_logic_vector(2 downto 0); clk: in std_logic; LED7: out std_logic_vecto
