Component instances replaced by entity instances.

Some people prefer this (when can be used) as it is easier to read
and maintain and also occupies less space.

diff --git a/top_counter.vhd b/top_counter.vhd
index 7a0918ac721587765e5c4298265e1c897cb3e7a3..d9cccf4f4a6a20746f55910f91aeeb7045cf1879 100644 (file)
--- a/top_counter.vhd
+++ b/top_counter.vhd
@@ -30,43 +30,6 @@ end top_counter;
 
 architecture behavioral of top_counter is
   
-  component div_20 is
-    port (
-      clk    : in  std_logic;
-      clk_2k : out std_logic);
-  end component;
-
-  component hex2lcd is
-    port (
-      hex : in  std_logic_vector (3 downto 0);
-      lcd : out std_logic_vector (6 downto 0));
-  end component;
-
-  component lcd_mux is
-    port (
-      clk     : in  std_logic;
-      cnt     : in  std_logic;
-      data_in : in  std_logic_vector (6 downto 0);
-      lcd_seg : out std_logic_vector (6 downto 0);
-      lcd_com : out std_logic;
-      lcd_dp  : out std_logic);
-  end component;
-
-  component qcounter is
-    port (
-      clock    : in  std_logic;
-      reset    : in  std_logic;
-      a0, b0   : in  std_logic;
-      qcount   : out std_logic_vector (31 downto 0);
-      a_rise   : out std_logic;
-      a_fall   : out std_logic;
-      b_rise   : out std_logic;
-      b_fall   : out std_logic;
-      ab_event : out std_logic;
-      ab_error : out std_logic);
-  end component;
-
-
   signal lcd_clk  : std_logic;
   signal lcd1_out : std_logic_vector (6 downto 0);
   signal lcd2_out : std_logic_vector (6 downto 0);
@@ -78,22 +41,22 @@ architecture behavioral of top_counter is
   
 begin
   
-  div_20_1 : div_20
+  div_20_1 : entity work.div_20
     port map (
       clk    => clk,
       clk_2k => lcd_clk);
 
-  hex2lcd_1 : hex2lcd
+  hex2lcd_1 : entity work.hex2lcd
     port map (
       hex => qcount_data(5 downto 2),
       lcd => lcd1_out);
 
-  hex2lcd_2 : hex2lcd
+  hex2lcd_2 : entity work.hex2lcd
     port map (
       hex => qcount_data(9 downto 6),
       lcd => lcd2_out);
 
-  lcd_mux_1 : lcd_mux
+  lcd_mux_1 : entity work.lcd_mux
     port map (
       clk     => clk,
       cnt     => lcd_clk,
@@ -102,7 +65,7 @@ begin
       lcd_com => lcd_com,
       lcd_dp  => lcd1_dp);
 
-  lcd_mux_2 : lcd_mux
+  lcd_mux_2 : entity work.lcd_mux
     port map (
       clk     => clk,
       cnt     => lcd_clk,
@@ -111,7 +74,7 @@ begin
       lcd_com => open,
       lcd_dp  => lcd2_dp);
 
-  qcounter_1 : qcounter
+  qcounter_1 : entity work.qcounter
     port map (
       clock    => clk,
       reset    => qcount_reset,