jammasterz Posted September 23, 2014 Report Share Posted September 23, 2014 Hey there. I'm following this tutorial:http://forum.gadgetfactory.net/index.php?/page/articles.html/_/papilio/logicstart-megawing/intro-to-spartan-fpga-ebook-r34 (By the way there is no code in the repository, only the book itself);I'm currently on chapter 13 and I'm having problems with getting it to work. I'm supposed to: • Create a new module - a 30-bit counter called "counter30", with the following external signals:– clk : in STD_LOGIC– enable : in STD_LOGIC– count : out STD_LOGIC_VECTOR(29 downto 0) • View the ’Instantiation Template’ for your component. Copy the component declaration into your switches_leds.vhd source• In switches_leds create an instance of counter30– Connect the counter’s count output to a bus called count1– Connect the "enable" signal to switch(0)– Connect the clock– Connect the top four bits of count1 to LEDs(3 downto 0). I've spent a ton of time trying to figure out whats wrong but I have no idea. This is what I have so far:The counter30 module:library IEEE;use IEEE.STD_LOGIC_1164.ALL;use IEEE.STD_LOGIC_UNSIGNED.ALL;entity counter30 is Port ( clk : in STD_LOGIC; enable : in STD_LOGIC; count : out STD_LOGIC_VECTOR (29 downto 0));end counter30;architecture Behavioral of counter30 is signal counter : STD_LOGIC_VECTOR(29 downto 0) := (others => '0');begin clk_proc: process(clk) begin if enable = '1' then if rising_edge(clk) then counter <= counter + 1; end if; end if; end process;end Behavioral;The main program:library IEEE;use IEEE.STD_LOGIC_1164.ALL;use IEEE.STD_LOGIC_UNSIGNED.ALL;entity Swiches_LEDs is Port ( switches : in STD_LOGIC_VECTOR(7 downto 0); LEDs : out STD_LOGIC_VECTOR(3 downto 0); clk1 : in STD_LOGIC);end Swiches_LEDs;architecture Behavioral of Swiches_LEDs is COMPONENT counter30 PORT( clk : IN std_logic; enable : IN std_logic; count : OUT std_logic_vector(29 downto 0) ); END COMPONENT; signal count1 : STD_LOGIC_VECTOR(29 downto 0) := (others => '0');begin Inst_counter30: counter30 PORT MAP( clk => clk1, enable => switches(0), count => count1 ); LEDs(3 downto 0) <= count1(29 downto 26);end Behavioral;Does anybody know whats wrong? Quote Link to comment Share on other sites More sharing options...
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