Using Vivado 2017.4, I am trying to use a clock signal generated by the Clocking Wizard IP. I copied the instantiation and component code block from the Instantiation template, but I am getting some errors related to signal declaration. I have assigned the "count" signal under my architecture header, yet I keep getting an error saying " is not declared".
In addition to "count" I am also getting the same error with my "clk_wiz_0" variable even though I created the component. I also have some syntax warnings that could be contributing to the errors.
I have tried moving the library declarations to after the entity block but that didn't help. I don't think I'm missing any libraries either.
I am new to VHDL so maybe there are some type or syntax issues I am missing? --> signifies a "error <> not declared" error and * indicates syntax warnings. Thanks in advance!
library IEEE; use IEEE.STD_LOGIC_1164.ALL; entity mmcm is Port( clk_fpga : in STD_LOGIC; reset : in STD_LOGIC; lock_led : out STD_LOGIC; counter_led : out STD_LOGIC); end mmcm; architecture Behavioral of mmcm is signal clk_10M : std_logic; signal count : std_logic_vector(3 downto 0); component clk_wiz_0 port (-- Clock in ports -- Clock out ports clk_10M : out std_logic; -- Status and control signals reset : in std_logic; locked : out std_logic; clk_in1 : in std_logic ); end component; *mmcm_inst : clk_wiz_0* port map ( -- Clock out ports clk_10M => clk_10M, -- Status and control signals reset => reset, locked => locked, -- Clock in ports clk_in1 => clk_in1 ); ATTRIBUTE SYN_BLACK_BOX : BOOLEAN; -->ATTRIBUTE SYN_BLACK_BOX OF clk_wiz_0 : COMPONENT IS TRUE; ATTRIBUTE BLACK_BOX_PAD_PIN : STRING; -->ATTRIBUTE BLACK_BOX_PAD_PIN OF clk_wiz_0 : COMPONENT IS "clk_in1, clk_10M, reset, locked"; *process (clk_10M, reset) --count from 0 to 9 at 10MHz* begin if reset = '1' then -->count <= "0000"; *elseif clk_10M'event and clk_10M = '1' then* if count = 9 then -->count <= "0000"; *else* -->count <= count + 1; *end if;* end if; end process; counter_led <= '1' when count = 9 else '0'; end Behavioral;