diff options
Diffstat (limited to 'Example/combinational_logic/counter/decadecounter.vhdl')
-rw-r--r-- | Example/combinational_logic/counter/decadecounter.vhdl | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/Example/combinational_logic/counter/decadecounter.vhdl b/Example/combinational_logic/counter/decadecounter.vhdl new file mode 100644 index 0000000..6d84280 --- /dev/null +++ b/Example/combinational_logic/counter/decadecounter.vhdl @@ -0,0 +1,23 @@ +library ieee; +use ieee.std_logic_1164.all; +use ieee.numeric_std.all; + +entity decadecounter is + port(CLK : in std_logic; + RST : in std_logic; + Count : out std_logic_vector(9 downto 0)); +end decadecounter; + +architecture beh of decadecounter is + signal a: std_logic_vector(9 downto 0) := "0000000001"; +begin + process(CLK, RST) + begin + if RST = '1' then + a <= "0000000001"; + elsif rising_edge(CLK) then + a <= a(0) & a(9 downto 1); -- rotating left + end if; + end process; + Count <= std_logic_vector (a); +end beh; |