An 8-bit binary counter written in VHDL. This slow clock makes it possible to see the binary value counting up on the LEDs. Binary Counter. Up/Down Counter.
Download ansys student version. 8-Bit Up Counter With Load 1 ------------------------------------------------------- 2 -- Design Name: up_counter_load 3 -- File Name: up_counter_load.vhd 4 -- Function: Up counter with load 5 -- Coder: Deepak Kumar Tala (Verilog) 6 -- Translator: Alexander H Pham (VHDL) 7 ------------------------------------------------------- 8 library ieee; 9 use ieee. All; 10 use ieee.
Library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_signed.all; entity counter is port(CLK, CLR: in std_logic; output: inout std_logic_vector(3 downto 0)); end counter; architecture archi of counter is signal tmp: std_logic_vector(3 downto 0); begin process (CLK, CLR) variable i: integer:=0; begin if (CLR='1') then tmp. Needs to operate off one clock edge Because your counter port has clk in it, we can assume you want the counter to count synchronous to the clock. You're operating off of both clock edges elsif (clk = '1') then should be something like elsif clk'event and clk = '1' then or elsif rising_edge(clk) then These examples use the rising edge of clk.