hod4 a
This commit is contained in:
@@ -0,0 +1,158 @@
|
||||
## This file is a general .xdc for the Basys3 rev B board
|
||||
## To use it in a project:
|
||||
## - uncomment the lines corresponding to used pins
|
||||
## - rename the used ports (in each line, after get_ports) according to the top level signal names in the project
|
||||
|
||||
## Clock signal
|
||||
set_property -dict { PACKAGE_PIN W5 IOSTANDARD LVCMOS33 } [get_ports CLK]
|
||||
create_clock -add -name sys_clk_pin -period 10.00 -waveform {0 5} [get_ports CLK]
|
||||
|
||||
## Switches
|
||||
set_property -dict { PACKAGE_PIN V17 IOSTANDARD LVCMOS33 } [get_ports {START_PAUSE}]
|
||||
#set_property -dict { PACKAGE_PIN V16 IOSTANDARD LVCMOS33 } [get_ports {sw[1]}]
|
||||
#set_property -dict { PACKAGE_PIN W16 IOSTANDARD LVCMOS33 } [get_ports {sw[2]}]
|
||||
#set_property -dict { PACKAGE_PIN W17 IOSTANDARD LVCMOS33 } [get_ports {sw[3]}]
|
||||
#set_property -dict { PACKAGE_PIN W15 IOSTANDARD LVCMOS33 } [get_ports {sw[4]}]
|
||||
#set_property -dict { PACKAGE_PIN V15 IOSTANDARD LVCMOS33 } [get_ports {sw[5]}]
|
||||
#set_property -dict { PACKAGE_PIN W14 IOSTANDARD LVCMOS33 } [get_ports {sw[6]}]
|
||||
#set_property -dict { PACKAGE_PIN W13 IOSTANDARD LVCMOS33 } [get_ports {sw[7]}]
|
||||
#set_property -dict { PACKAGE_PIN V2 IOSTANDARD LVCMOS33 } [get_ports {sw[8]}]
|
||||
#set_property -dict { PACKAGE_PIN T3 IOSTANDARD LVCMOS33 } [get_ports {sw[9]}]
|
||||
#set_property -dict { PACKAGE_PIN T2 IOSTANDARD LVCMOS33 } [get_ports {sw[10]}]
|
||||
#set_property -dict { PACKAGE_PIN R3 IOSTANDARD LVCMOS33 } [get_ports {sw[11]}]
|
||||
#set_property -dict { PACKAGE_PIN W2 IOSTANDARD LVCMOS33 } [get_ports {sw[12]}]
|
||||
#set_property -dict { PACKAGE_PIN U1 IOSTANDARD LVCMOS33 } [get_ports {sw[13]}]
|
||||
#set_property -dict { PACKAGE_PIN T1 IOSTANDARD LVCMOS33 } [get_ports {sw[14]}]
|
||||
#set_property -dict { PACKAGE_PIN R2 IOSTANDARD LVCMOS33 } [get_ports {sw[15]}]
|
||||
|
||||
|
||||
## LEDs
|
||||
set_property -dict { PACKAGE_PIN U16 IOSTANDARD LVCMOS33 } [get_ports {LED_UNITS[0]}]
|
||||
set_property -dict { PACKAGE_PIN E19 IOSTANDARD LVCMOS33 } [get_ports {LED_UNITS[1]}]
|
||||
set_property -dict { PACKAGE_PIN U19 IOSTANDARD LVCMOS33 } [get_ports {LED_UNITS[2]}]
|
||||
set_property -dict { PACKAGE_PIN V19 IOSTANDARD LVCMOS33 } [get_ports {LED_UNITS[3]}]
|
||||
set_property -dict { PACKAGE_PIN W18 IOSTANDARD LVCMOS33 } [get_ports {LED_TENS[0]}]
|
||||
set_property -dict { PACKAGE_PIN U15 IOSTANDARD LVCMOS33 } [get_ports {LED_TENS[1]}]
|
||||
set_property -dict { PACKAGE_PIN U14 IOSTANDARD LVCMOS33 } [get_ports {LED_TENS[2]}]
|
||||
set_property -dict { PACKAGE_PIN V14 IOSTANDARD LVCMOS33 } [get_ports {LED_TENS[3]}]
|
||||
#set_property -dict { PACKAGE_PIN V13 IOSTANDARD LVCMOS33 } [get_ports {led[8]}]
|
||||
#set_property -dict { PACKAGE_PIN V3 IOSTANDARD LVCMOS33 } [get_ports {led[9]}]
|
||||
#set_property -dict { PACKAGE_PIN W3 IOSTANDARD LVCMOS33 } [get_ports {led[10]}]
|
||||
#set_property -dict { PACKAGE_PIN U3 IOSTANDARD LVCMOS33 } [get_ports {led[11]}]
|
||||
#set_property -dict { PACKAGE_PIN P3 IOSTANDARD LVCMOS33 } [get_ports {led[12]}]
|
||||
#set_property -dict { PACKAGE_PIN N3 IOSTANDARD LVCMOS33 } [get_ports {led[13]}]
|
||||
#set_property -dict { PACKAGE_PIN P1 IOSTANDARD LVCMOS33 } [get_ports {led[14]}]
|
||||
#set_property -dict { PACKAGE_PIN L1 IOSTANDARD LVCMOS33 } [get_ports {led[15]}]
|
||||
|
||||
|
||||
##7 Segment Display
|
||||
#set_property -dict { PACKAGE_PIN W7 IOSTANDARD LVCMOS33 } [get_ports {seg[0]}]
|
||||
#set_property -dict { PACKAGE_PIN W6 IOSTANDARD LVCMOS33 } [get_ports {seg[1]}]
|
||||
#set_property -dict { PACKAGE_PIN U8 IOSTANDARD LVCMOS33 } [get_ports {seg[2]}]
|
||||
#set_property -dict { PACKAGE_PIN V8 IOSTANDARD LVCMOS33 } [get_ports {seg[3]}]
|
||||
#set_property -dict { PACKAGE_PIN U5 IOSTANDARD LVCMOS33 } [get_ports {seg[4]}]
|
||||
#set_property -dict { PACKAGE_PIN V5 IOSTANDARD LVCMOS33 } [get_ports {seg[5]}]
|
||||
#set_property -dict { PACKAGE_PIN U7 IOSTANDARD LVCMOS33 } [get_ports {seg[6]}]
|
||||
|
||||
#set_property -dict { PACKAGE_PIN V7 IOSTANDARD LVCMOS33 } [get_ports dp]
|
||||
|
||||
#set_property -dict { PACKAGE_PIN U2 IOSTANDARD LVCMOS33 } [get_ports {an[0]}]
|
||||
#set_property -dict { PACKAGE_PIN U4 IOSTANDARD LVCMOS33 } [get_ports {an[1]}]
|
||||
#set_property -dict { PACKAGE_PIN V4 IOSTANDARD LVCMOS33 } [get_ports {an[2]}]
|
||||
#set_property -dict { PACKAGE_PIN W4 IOSTANDARD LVCMOS33 } [get_ports {an[3]}]
|
||||
|
||||
|
||||
##Buttons
|
||||
set_property -dict { PACKAGE_PIN U18 IOSTANDARD LVCMOS33 } [get_ports RST]
|
||||
#set_property -dict { PACKAGE_PIN T18 IOSTANDARD LVCMOS33 } [get_ports btnU]
|
||||
#set_property -dict { PACKAGE_PIN W19 IOSTANDARD LVCMOS33 } [get_ports btnL]
|
||||
#set_property -dict { PACKAGE_PIN T17 IOSTANDARD LVCMOS33 } [get_ports btnR]
|
||||
#set_property -dict { PACKAGE_PIN U17 IOSTANDARD LVCMOS33 } [get_ports btnD]
|
||||
|
||||
|
||||
##Pmod Header JA
|
||||
#set_property -dict { PACKAGE_PIN J1 IOSTANDARD LVCMOS33 } [get_ports {JA[0]}];#Sch name = JA1
|
||||
#set_property -dict { PACKAGE_PIN L2 IOSTANDARD LVCMOS33 } [get_ports {JA[1]}];#Sch name = JA2
|
||||
#set_property -dict { PACKAGE_PIN J2 IOSTANDARD LVCMOS33 } [get_ports {JA[2]}];#Sch name = JA3
|
||||
#set_property -dict { PACKAGE_PIN G2 IOSTANDARD LVCMOS33 } [get_ports {JA[3]}];#Sch name = JA4
|
||||
#set_property -dict { PACKAGE_PIN H1 IOSTANDARD LVCMOS33 } [get_ports {JA[4]}];#Sch name = JA7
|
||||
#set_property -dict { PACKAGE_PIN K2 IOSTANDARD LVCMOS33 } [get_ports {JA[5]}];#Sch name = JA8
|
||||
#set_property -dict { PACKAGE_PIN H2 IOSTANDARD LVCMOS33 } [get_ports {JA[6]}];#Sch name = JA9
|
||||
#set_property -dict { PACKAGE_PIN G3 IOSTANDARD LVCMOS33 } [get_ports {JA[7]}];#Sch name = JA10
|
||||
|
||||
##Pmod Header JB
|
||||
#set_property -dict { PACKAGE_PIN A14 IOSTANDARD LVCMOS33 } [get_ports {JB[0]}];#Sch name = JB1
|
||||
#set_property -dict { PACKAGE_PIN A16 IOSTANDARD LVCMOS33 } [get_ports {JB[1]}];#Sch name = JB2
|
||||
#set_property -dict { PACKAGE_PIN B15 IOSTANDARD LVCMOS33 } [get_ports {JB[2]}];#Sch name = JB3
|
||||
#set_property -dict { PACKAGE_PIN B16 IOSTANDARD LVCMOS33 } [get_ports {JB[3]}];#Sch name = JB4
|
||||
#set_property -dict { PACKAGE_PIN A15 IOSTANDARD LVCMOS33 } [get_ports {JB[4]}];#Sch name = JB7
|
||||
#set_property -dict { PACKAGE_PIN A17 IOSTANDARD LVCMOS33 } [get_ports {JB[5]}];#Sch name = JB8
|
||||
#set_property -dict { PACKAGE_PIN C15 IOSTANDARD LVCMOS33 } [get_ports {JB[6]}];#Sch name = JB9
|
||||
#set_property -dict { PACKAGE_PIN C16 IOSTANDARD LVCMOS33 } [get_ports {JB[7]}];#Sch name = JB10
|
||||
|
||||
##Pmod Header JC
|
||||
#set_property -dict { PACKAGE_PIN K17 IOSTANDARD LVCMOS33 } [get_ports {JC[0]}];#Sch name = JC1
|
||||
#set_property -dict { PACKAGE_PIN M18 IOSTANDARD LVCMOS33 } [get_ports {JC[1]}];#Sch name = JC2
|
||||
#set_property -dict { PACKAGE_PIN N17 IOSTANDARD LVCMOS33 } [get_ports {JC[2]}];#Sch name = JC3
|
||||
#set_property -dict { PACKAGE_PIN P18 IOSTANDARD LVCMOS33 } [get_ports {JC[3]}];#Sch name = JC4
|
||||
#set_property -dict { PACKAGE_PIN L17 IOSTANDARD LVCMOS33 } [get_ports {JC[4]}];#Sch name = JC7
|
||||
#set_property -dict { PACKAGE_PIN M19 IOSTANDARD LVCMOS33 } [get_ports {JC[5]}];#Sch name = JC8
|
||||
#set_property -dict { PACKAGE_PIN P17 IOSTANDARD LVCMOS33 } [get_ports {JC[6]}];#Sch name = JC9
|
||||
#set_property -dict { PACKAGE_PIN R18 IOSTANDARD LVCMOS33 } [get_ports {JC[7]}];#Sch name = JC10
|
||||
|
||||
##Pmod Header JXADC
|
||||
#set_property -dict { PACKAGE_PIN J3 IOSTANDARD LVCMOS33 } [get_ports {JXADC[0]}];#Sch name = XA1_P
|
||||
#set_property -dict { PACKAGE_PIN L3 IOSTANDARD LVCMOS33 } [get_ports {JXADC[1]}];#Sch name = XA2_P
|
||||
#set_property -dict { PACKAGE_PIN M2 IOSTANDARD LVCMOS33 } [get_ports {JXADC[2]}];#Sch name = XA3_P
|
||||
#set_property -dict { PACKAGE_PIN N2 IOSTANDARD LVCMOS33 } [get_ports {JXADC[3]}];#Sch name = XA4_P
|
||||
#set_property -dict { PACKAGE_PIN K3 IOSTANDARD LVCMOS33 } [get_ports {JXADC[4]}];#Sch name = XA1_N
|
||||
#set_property -dict { PACKAGE_PIN M3 IOSTANDARD LVCMOS33 } [get_ports {JXADC[5]}];#Sch name = XA2_N
|
||||
#set_property -dict { PACKAGE_PIN M1 IOSTANDARD LVCMOS33 } [get_ports {JXADC[6]}];#Sch name = XA3_N
|
||||
#set_property -dict { PACKAGE_PIN N1 IOSTANDARD LVCMOS33 } [get_ports {JXADC[7]}];#Sch name = XA4_N
|
||||
|
||||
|
||||
##VGA Connector
|
||||
#set_property -dict { PACKAGE_PIN G19 IOSTANDARD LVCMOS33 } [get_ports {vgaRed[0]}]
|
||||
#set_property -dict { PACKAGE_PIN H19 IOSTANDARD LVCMOS33 } [get_ports {vgaRed[1]}]
|
||||
#set_property -dict { PACKAGE_PIN J19 IOSTANDARD LVCMOS33 } [get_ports {vgaRed[2]}]
|
||||
#set_property -dict { PACKAGE_PIN N19 IOSTANDARD LVCMOS33 } [get_ports {vgaRed[3]}]
|
||||
#set_property -dict { PACKAGE_PIN N18 IOSTANDARD LVCMOS33 } [get_ports {vgaBlue[0]}]
|
||||
#set_property -dict { PACKAGE_PIN L18 IOSTANDARD LVCMOS33 } [get_ports {vgaBlue[1]}]
|
||||
#set_property -dict { PACKAGE_PIN K18 IOSTANDARD LVCMOS33 } [get_ports {vgaBlue[2]}]
|
||||
#set_property -dict { PACKAGE_PIN J18 IOSTANDARD LVCMOS33 } [get_ports {vgaBlue[3]}]
|
||||
#set_property -dict { PACKAGE_PIN J17 IOSTANDARD LVCMOS33 } [get_ports {vgaGreen[0]}]
|
||||
#set_property -dict { PACKAGE_PIN H17 IOSTANDARD LVCMOS33 } [get_ports {vgaGreen[1]}]
|
||||
#set_property -dict { PACKAGE_PIN G17 IOSTANDARD LVCMOS33 } [get_ports {vgaGreen[2]}]
|
||||
#set_property -dict { PACKAGE_PIN D17 IOSTANDARD LVCMOS33 } [get_ports {vgaGreen[3]}]
|
||||
#set_property -dict { PACKAGE_PIN P19 IOSTANDARD LVCMOS33 } [get_ports Hsync]
|
||||
#set_property -dict { PACKAGE_PIN R19 IOSTANDARD LVCMOS33 } [get_ports Vsync]
|
||||
|
||||
|
||||
##USB-RS232 Interface
|
||||
#set_property -dict { PACKAGE_PIN B18 IOSTANDARD LVCMOS33 } [get_ports RsRx]
|
||||
#set_property -dict { PACKAGE_PIN A18 IOSTANDARD LVCMOS33 } [get_ports RsTx]
|
||||
|
||||
|
||||
##USB HID (PS/2)
|
||||
#set_property -dict { PACKAGE_PIN C17 IOSTANDARD LVCMOS33 PULLUP true } [get_ports PS2Clk]
|
||||
#set_property -dict { PACKAGE_PIN B17 IOSTANDARD LVCMOS33 PULLUP true } [get_ports PS2Data]
|
||||
|
||||
|
||||
##Quad SPI Flash
|
||||
##Note that CCLK_0 cannot be placed in 7 series devices. You can access it using the
|
||||
##STARTUPE2 primitive.
|
||||
#set_property -dict { PACKAGE_PIN D18 IOSTANDARD LVCMOS33 } [get_ports {QspiDB[0]}]
|
||||
#set_property -dict { PACKAGE_PIN D19 IOSTANDARD LVCMOS33 } [get_ports {QspiDB[1]}]
|
||||
#set_property -dict { PACKAGE_PIN G18 IOSTANDARD LVCMOS33 } [get_ports {QspiDB[2]}]
|
||||
#set_property -dict { PACKAGE_PIN F18 IOSTANDARD LVCMOS33 } [get_ports {QspiDB[3]}]
|
||||
#set_property -dict { PACKAGE_PIN K19 IOSTANDARD LVCMOS33 } [get_ports QspiCSn]
|
||||
|
||||
|
||||
## Configuration options, can be used for all designs
|
||||
set_property CONFIG_VOLTAGE 3.3 [current_design]
|
||||
set_property CFGBVS VCCO [current_design]
|
||||
|
||||
## SPI configuration mode options for QSPI boot, can be used for all designs
|
||||
set_property BITSTREAM.GENERAL.COMPRESS TRUE [current_design]
|
||||
set_property BITSTREAM.CONFIG.CONFIGRATE 33 [current_design]
|
||||
set_property CONFIG_MODE SPIx4 [current_design]
|
||||
73
project_4/project_4.srcs/sources_1/new/counter.vhd
Normal file
73
project_4/project_4.srcs/sources_1/new/counter.vhd
Normal file
@@ -0,0 +1,73 @@
|
||||
----------------------------------------------------------------------------------
|
||||
-- Company:
|
||||
-- Engineer:
|
||||
--
|
||||
-- Create Date: 09.03.2026 13:12:16
|
||||
-- Design Name:
|
||||
-- Module Name: counter - Behavioral
|
||||
-- Project Name:
|
||||
-- Target Devices:
|
||||
-- Tool Versions:
|
||||
-- Description:
|
||||
--
|
||||
-- Dependencies:
|
||||
--
|
||||
-- Revision:
|
||||
-- Revision 0.01 - File Created
|
||||
-- Additional Comments:
|
||||
--
|
||||
----------------------------------------------------------------------------------
|
||||
|
||||
|
||||
library IEEE;
|
||||
use IEEE.STD_LOGIC_1164.ALL;
|
||||
use IEEE.STD_LOGIC_UNSIGNED.ALL;
|
||||
|
||||
-- Uncomment the following library declaration if using
|
||||
-- arithmetic functions with Signed or Unsigned values
|
||||
--use IEEE.NUMERIC_STD.ALL;
|
||||
|
||||
-- Uncomment the following library declaration if instantiating
|
||||
-- any Xilinx leaf cells in this code.
|
||||
--library UNISIM;
|
||||
--use UNISIM.VComponents.all;
|
||||
|
||||
entity counter is
|
||||
Port ( CLK : in STD_LOGIC;
|
||||
RST : in STD_LOGIC;
|
||||
CE : in STD_LOGIC;
|
||||
TC : out STD_LOGIC;
|
||||
COUNT_OUT : out STD_LOGIC_VECTOR (3 downto 0));
|
||||
end counter;
|
||||
|
||||
|
||||
architecture Behavioral of counter is
|
||||
-- Internal signal to keep track of the current number
|
||||
signal s_cnt : STD_LOGIC_VECTOR(3 downto 0) := "0000";
|
||||
begin
|
||||
|
||||
-- Main counting logic
|
||||
process(CLK)
|
||||
begin
|
||||
if rising_edge(CLK) then
|
||||
if RST = '1' then
|
||||
s_cnt <= "0000";
|
||||
elsif CE = '1' then
|
||||
if s_cnt = "1001" then -- If we are at 9
|
||||
s_cnt <= "0000"; -- Reset to 0
|
||||
else
|
||||
s_cnt <= s_cnt + 1; -- Increment
|
||||
end if;
|
||||
end if;
|
||||
end if;
|
||||
end process;
|
||||
|
||||
-- Terminal Count logic (The red line connection)
|
||||
-- TC is '1' ONLY when we are at 9 AND the enable pulse is active.
|
||||
-- This ensures the next counter only moves once per rollover.
|
||||
TC <= '1' when (s_cnt = "1001" and CE = '1') else '0';
|
||||
|
||||
-- Drive the output ports
|
||||
COUNT_OUT <= s_cnt;
|
||||
|
||||
end Behavioral;
|
||||
62
project_4/project_4.srcs/sources_1/new/divider.vhd
Normal file
62
project_4/project_4.srcs/sources_1/new/divider.vhd
Normal file
@@ -0,0 +1,62 @@
|
||||
----------------------------------------------------------------------------------
|
||||
-- Company:
|
||||
-- Engineer:
|
||||
--
|
||||
-- Create Date: 09.03.2026 13:19:27
|
||||
-- Design Name:
|
||||
-- Module Name: divider - Behavioral
|
||||
-- Project Name:
|
||||
-- Target Devices:
|
||||
-- Tool Versions:
|
||||
-- Description:
|
||||
--
|
||||
-- Dependencies:
|
||||
--
|
||||
-- Revision:
|
||||
-- Revision 0.01 - File Created
|
||||
-- Additional Comments:
|
||||
--
|
||||
----------------------------------------------------------------------------------
|
||||
|
||||
|
||||
library IEEE;
|
||||
use IEEE.STD_LOGIC_1164.ALL;
|
||||
use IEEE.STD_LOGIC_UNSIGNED.ALL;
|
||||
|
||||
-- Uncomment the following library declaration if using
|
||||
-- arithmetic functions with Signed or Unsigned values
|
||||
--use IEEE.NUMERIC_STD.ALL;
|
||||
|
||||
-- Uncomment the following library declaration if instantiating
|
||||
-- any Xilinx leaf cells in this code.
|
||||
--library UNISIM;
|
||||
--use UNISIM.VComponents.all;
|
||||
|
||||
entity divider is
|
||||
Port ( CLK : in STD_LOGIC;
|
||||
RST : in STD_LOGIC;
|
||||
CLK_1_Hz : out STD_LOGIC);
|
||||
end divider;
|
||||
|
||||
architecture Behavioral of divider is
|
||||
-- We need a 27-bit signal to hold the number 100,000,000
|
||||
signal s_cnt : STD_LOGIC_VECTOR(26 downto 0) := (others => '0');
|
||||
begin
|
||||
|
||||
process(CLK)
|
||||
begin
|
||||
if rising_edge(CLK) then
|
||||
if RST = '1' then
|
||||
s_cnt <= (others => '0');
|
||||
CLK_1_Hz <= '0';
|
||||
elsif s_cnt = 99_999_999 then -- One second has passed
|
||||
s_cnt <= (others => '0');
|
||||
CLK_1_Hz <= '1'; -- Send one single 'high' pulse
|
||||
else
|
||||
s_cnt <= s_cnt + 1;
|
||||
CLK_1_Hz <= '0'; -- Stay low otherwise
|
||||
end if;
|
||||
end if;
|
||||
end process;
|
||||
|
||||
end Behavioral;
|
||||
95
project_4/project_4.srcs/sources_1/new/top_modul.vhd
Normal file
95
project_4/project_4.srcs/sources_1/new/top_modul.vhd
Normal file
@@ -0,0 +1,95 @@
|
||||
----------------------------------------------------------------------------------
|
||||
-- Company:
|
||||
-- Engineer:
|
||||
--
|
||||
-- Create Date: 09.03.2026 13:07:50
|
||||
-- Design Name:
|
||||
-- Module Name: top_modul - Behavioral
|
||||
-- Project Name:
|
||||
-- Target Devices:
|
||||
-- Tool Versions:
|
||||
-- Description:
|
||||
--
|
||||
-- Dependencies:
|
||||
--
|
||||
-- Revision:
|
||||
-- Revision 0.01 - File Created
|
||||
-- Additional Comments:
|
||||
--
|
||||
----------------------------------------------------------------------------------
|
||||
|
||||
|
||||
library IEEE;
|
||||
use IEEE.STD_LOGIC_1164.ALL;
|
||||
|
||||
-- Uncomment the following library declaration if using
|
||||
-- arithmetic functions with Signed or Unsigned values
|
||||
--use IEEE.NUMERIC_STD.ALL;
|
||||
|
||||
-- Uncomment the following library declaration if instantiating
|
||||
-- any Xilinx leaf cells in this code.
|
||||
--library UNISIM;
|
||||
--use UNISIM.VComponents.all;
|
||||
|
||||
entity top_modul is
|
||||
Port ( CLK : in STD_LOGIC;
|
||||
RST : in STD_LOGIC;
|
||||
START_PAUSE : in STD_LOGIC;
|
||||
LED_UNITS : out STD_LOGIC_VECTOR (3 downto 0);
|
||||
LED_TENS : out STD_LOGIC_VECTOR (3 downto 0));
|
||||
end top_modul;
|
||||
|
||||
|
||||
architecture Behavioral of top_modul is
|
||||
|
||||
-- 1. Component Declarations
|
||||
component divider is
|
||||
Port ( CLK : in STD_LOGIC;
|
||||
RST : in STD_LOGIC;
|
||||
CLK_1_Hz : out STD_LOGIC); -- This will be our enable pulse
|
||||
end component;
|
||||
|
||||
component counter is
|
||||
Port ( CLK : in STD_LOGIC;
|
||||
RST : in STD_LOGIC;
|
||||
CE : in std_logic;
|
||||
TC : out std_logic; -- Terminal Count for cascading
|
||||
COUNT_OUT : out STD_LOGIC_VECTOR (3 downto 0));
|
||||
end component;
|
||||
|
||||
-- 2. Internal "Wires"
|
||||
signal s_1hz_tick : std_logic;
|
||||
signal s_tc_units : std_logic;
|
||||
|
||||
begin
|
||||
|
||||
-- 3. Block Instantiation & Wiring
|
||||
U_DIV : divider
|
||||
port map (
|
||||
CLK => CLK,
|
||||
RST => RST,
|
||||
CLK_1_Hz => s_1hz_tick
|
||||
);
|
||||
|
||||
-- Units Counter (First CNT in diagram)
|
||||
U_CNT_UNITS : counter
|
||||
port map (
|
||||
CLK => CLK,
|
||||
RST => RST,
|
||||
CE => (s_1hz_tick and START_PAUSE), -- Input from DIV + Switch
|
||||
TC => s_tc_units, -- Output to next counter
|
||||
COUNT_OUT => LED_UNITS
|
||||
);
|
||||
|
||||
-- Tens Counter (Second CNT in diagram)
|
||||
U_CNT_TENS : counter
|
||||
port map (
|
||||
CLK => CLK,
|
||||
RST => RST,
|
||||
-- Increments ONLY when Units rolls over (TC) AND 1Hz pulse is there
|
||||
CE => s_tc_units,
|
||||
TC => open, -- We don't need TC for the last digit
|
||||
COUNT_OUT => LED_TENS
|
||||
);
|
||||
|
||||
end Behavioral;
|
||||
Reference in New Issue
Block a user