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Author SHA1 Message Date
Filipriec
93c5b504fb counting up to 9999 now 2026-03-16 16:12:29 +01:00
Filipriec
6af72b448a basys 3 imported to project 6 2026-03-16 12:35:52 +01:00
9 changed files with 757 additions and 0 deletions

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## 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 {RST}]
set_property -dict { PACKAGE_PIN V16 IOSTANDARD LVCMOS33 } [get_ports {START}]
#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[0]}]
#set_property -dict { PACKAGE_PIN E19 IOSTANDARD LVCMOS33 } [get_ports {led[1]}]
#set_property -dict { PACKAGE_PIN U19 IOSTANDARD LVCMOS33 } [get_ports {led[2]}]
#set_property -dict { PACKAGE_PIN V19 IOSTANDARD LVCMOS33 } [get_ports {led[3]}]
#set_property -dict { PACKAGE_PIN W18 IOSTANDARD LVCMOS33 } [get_ports {led[4]}]
#set_property -dict { PACKAGE_PIN U15 IOSTANDARD LVCMOS33 } [get_ports {led[5]}]
#set_property -dict { PACKAGE_PIN U14 IOSTANDARD LVCMOS33 } [get_ports {led[6]}]
#set_property -dict { PACKAGE_PIN V14 IOSTANDARD LVCMOS33 } [get_ports {led[7]}]
#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 {SEGMENTS[0]}]
set_property -dict { PACKAGE_PIN W6 IOSTANDARD LVCMOS33 } [get_ports {SEGMENTS[1]}]
set_property -dict { PACKAGE_PIN U8 IOSTANDARD LVCMOS33 } [get_ports {SEGMENTS[2]}]
set_property -dict { PACKAGE_PIN V8 IOSTANDARD LVCMOS33 } [get_ports {SEGMENTS[3]}]
set_property -dict { PACKAGE_PIN U5 IOSTANDARD LVCMOS33 } [get_ports {SEGMENTS[4]}]
set_property -dict { PACKAGE_PIN V5 IOSTANDARD LVCMOS33 } [get_ports {SEGMENTS[5]}]
set_property -dict { PACKAGE_PIN U7 IOSTANDARD LVCMOS33 } [get_ports {SEGMENTS[6]}]
set_property -dict { PACKAGE_PIN V7 IOSTANDARD LVCMOS33 } [get_ports {SEGMENTS[7]}]
set_property -dict { PACKAGE_PIN U2 IOSTANDARD LVCMOS33 } [get_ports {ANODS[0]}]
set_property -dict { PACKAGE_PIN U4 IOSTANDARD LVCMOS33 } [get_ports {ANODS[1]}]
set_property -dict { PACKAGE_PIN V4 IOSTANDARD LVCMOS33 } [get_ports {ANODS[2]}]
set_property -dict { PACKAGE_PIN W4 IOSTANDARD LVCMOS33 } [get_ports {ANODS[3]}]
##Buttons
#set_property -dict { PACKAGE_PIN U18 IOSTANDARD LVCMOS33 } [get_ports btnC]
#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]

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----------------------------------------------------------------------------------
-- Company:
-- Engineer:
--
-- Create Date: 09.03.2026 15:14:35
-- 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'; / TODO
-- Drive the output ports
COUNT_OUT <= s_cnt;
end Behavioral;

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----------------------------------------------------------------------------------
-- Company:
-- Engineer:
--
-- Create Date: 09.03.2026 15:32:13
-- Design Name:
-- Module Name: counter_2bit - 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_2bit is
Port ( CLK : in STD_LOGIC;
RST : in STD_LOGIC;
COUNT_OUT : out STD_LOGIC_VECTOR (1 downto 0));
end counter_2bit;
architecture Behavioral of counter_2bit is
signal s_cnt : STD_LOGIC_VECTOR(1 downto 0) := "00";
begin
process(CLK, RST)
begin
if RST = '1' then
s_cnt <= "00";
elsif rising_edge(CLK) then
s_cnt <= s_cnt + 1;
end if;
end process;
COUNT_OUT <= s_cnt;
end Behavioral;

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----------------------------------------------------------------------------------
-- Company:
-- Engineer:
--
-- Create Date: 09.03.2026 15:54:24
-- Design Name:
-- Module Name: dec_seg - 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 dec_seg is
Port ( BCD : in STD_LOGIC_VECTOR (3 downto 0);
SEG : out STD_LOGIC_VECTOR (7 downto 0));
end dec_seg;
architecture Behavioral of dec_seg is
begin
-- Konverzia BCD na 7-segment (ABCDEFG + DP)
-- Form<72>t: "ABCDEFG DP"
with bcd select
seg <= "11000000" when "0000", -- 0
"11111001" when "0001", -- 1
"10100100" when "0010", -- 2
"10110000" when "0011", -- 3
"10011001" when "0100", -- 4
"10010010" when "0101", -- 5
"10000010" when "0110", -- 6
"11111000" when "0111", -- 7
"10000000" when "1000", -- 8
"10010000" when "1001", -- 9
"11111111" when others; -- off
end Behavioral;

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----------------------------------------------------------------------------------
-- Company:
-- Engineer:
--
-- Create Date: 09.03.2026 15:39:11
-- Design Name:
-- Module Name: decoder_bottom - 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 decoder_an is
Port ( SEL : in STD_LOGIC_VECTOR (1 downto 0);
ANODES : out STD_LOGIC_VECTOR (3 downto 0));
end decoder_an;
architecture Behavioral of decoder_an is
begin
with SEL select
ANODES <= "1110" when "00",
"1101" when "01",
"1011" when "10",
"0111" when "11",
"1111" when others;
end Behavioral;

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----------------------------------------------------------------------------------
-- Company:
-- Engineer:
--
-- Create Date: 09.03.2026 14:43:21
-- 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
-- 27 bits is enough for 100 million
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
s_cnt <= (others => '0');
CLK_1_Hz <= '1'; -- The pulse
else
s_cnt <= s_cnt + 1;
CLK_1_Hz <= '0';
end if;
end if;
end process;
end Behavioral;

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----------------------------------------------------------------------------------
-- Company:
-- Engineer:
--
-- Create Date: 09.03.2026 14:49:47
-- Design Name:
-- Module Name: divider_400Hz - 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_400Hz is
Port ( CLK : in STD_LOGIC;
RST : in STD_LOGIC;
CLK_400_Hz : out STD_LOGIC);
end divider_400Hz;
architecture Behavioral of divider_400Hz is
-- 18 bits is enough for 250,000
signal s_cnt : STD_LOGIC_VECTOR(17 downto 0) := (others => '0');
begin
process(CLK)
begin
if rising_edge(CLK) then
if RST = '1' then
s_cnt <= (others => '0');
CLK_400_Hz <= '0';
elsif s_cnt = 249_999 then
s_cnt <= (others => '0');
CLK_400_Hz <= '1';
else
s_cnt <= s_cnt + 1;
CLK_400_Hz <= '0';
end if;
end if;
end process;
end Behavioral;

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----------------------------------------------------------------------------------
-- Company:
-- Engineer:
--
-- Create Date: 09.03.2026 15:47:51
-- Design Name:
-- Module Name: mux - 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 mux is
Port ( I0 : in STD_LOGIC_VECTOR (3 downto 0);
I1 : in STD_LOGIC_VECTOR (3 downto 0);
I2 : in STD_LOGIC_VECTOR (3 downto 0);
I3 : in STD_LOGIC_VECTOR (3 downto 0);
S : in STD_LOGIC_VECTOR (1 downto 0);
Y : out STD_LOGIC_VECTOR (3 downto 0));
end mux;
architecture Behavioral of mux is
begin
with S select
Y <= I0 when "00",
I1 when "01",
I2 when "10",
I3 when "11",
"0000" when others;
end Behavioral;

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----------------------------------------------------------------------------------
-- Company:
-- Engineer:
--
-- Create Date: 09.03.2026 14:40:14
-- 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 : in STD_LOGIC;
SEGMENTS : out STD_LOGIC_VECTOR (7 downto 0);
ANODS : out STD_LOGIC_VECTOR (3 downto 0));
end top_modul;
architecture Behavioral of top_modul is
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 divider_400Hz is
Port ( CLK : in STD_LOGIC;
RST : in STD_LOGIC;
CLK_400_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;
COUNT_OUT : out STD_LOGIC_VECTOR (3 downto 0));
end component;
component counter_2bit is
Port ( CLK : in STD_LOGIC;
RST : in STD_LOGIC;
COUNT_OUT : out STD_LOGIC_VECTOR (1 downto 0));
end component;
component decoder_an is
Port ( SEL : in STD_LOGIC_VECTOR (1 downto 0);
ANODES : out STD_LOGIC_VECTOR (3 downto 0));
end component;
component mux is
Port ( I0 : in STD_LOGIC_VECTOR (3 downto 0);
I1 : in STD_LOGIC_VECTOR (3 downto 0);
I2 : in STD_LOGIC_VECTOR (3 downto 0);
I3 : in STD_LOGIC_VECTOR (3 downto 0);
S : in STD_LOGIC_VECTOR (1 downto 0);
Y : out STD_LOGIC_VECTOR (3 downto 0));
end component;
component dec_seg is
Port ( bcd : in STD_LOGIC_VECTOR (3 downto 0);
seg : out STD_LOGIC_VECTOR (7 downto 0));
end component;
signal clk_1_Hz : std_logic;
signal clk_400_Hz : std_logic;
signal s_ce_units : std_logic;
signal s_tc_units : std_logic; -- Wire connecting Top TC to Bottom CE
signal s_tc_tens : std_logic;
signal s_tc_hundreds : std_logic;
signal s_cnt_units : std_logic_vector(3 downto 0); -- To MUX I0
signal s_cnt_tens : std_logic_vector(3 downto 0); -- To MUX I1
signal s_cnt_hundreds : std_logic_vector(3 downto 0);
signal s_cnt_thousands: std_logic_vector(3 downto 0);
signal s_cnt_2bit : std_logic_vector(1 downto 0);
signal s_mux_out : std_logic_vector(3 downto 0);
begin
U_DIV : divider
port map (
CLK => CLK,
RST => RST,
CLK_1_Hz => clk_1_Hz
);
U_DIV_400Hz : divider_400Hz
port map (
CLK => CLK,
RST => RST,
CLK_400_Hz => clk_400_Hz
);
s_ce_units <= clk_1_Hz and START;
-- TOP COUNTER (Units)
U_CNT_TOP : counter
port map (
CLK => CLK,
RST => RST,
CE => s_ce_units,
TC => s_tc_units,
COUNT_OUT => s_cnt_units
);
-- BOTTOM COUNTER (Tens)
U_CNT_BOTTOM : counter
port map (
CLK => CLK,
RST => RST,
CE => s_tc_units, -- Increments only when top counter hits 9
TC => s_tc_tens,
COUNT_OUT => s_cnt_tens
);
-- 3 COUNTER (Stovky)
U_CNT_3 : counter
port map (
CLK => CLK,
RST => RST,
CE => s_tc_tens and s_tc_units,
TC => s_tc_hundreds,
COUNT_OUT => s_cnt_hundreds
);
-- 4 COUNTER (Tisicky)
U_CNT_4 : counter
port map (
CLK => CLK,
RST => RST,
CE => s_tc_tens and s_tc_units and s_tc_hundreds,
TC => open, -- Free TC
COUNT_OUT => s_cnt_thousands
);
U_CNT_2BIT : counter_2bit
port map (
CLK => clk_400_Hz,
RST => RST,
COUNT_OUT => s_cnt_2bit
);
U_DEC_ANODES : decoder_an
port map (
SEL => s_cnt_2bit, -- 2-bitov<6F> sign<67>l
ANODES => ANODS -- V<>stupn<70> port top modulu
);
U_MUX : mux
port map (
I0 => s_cnt_units, -- V<>stup z prv<72>ho <20><>ta<74>a
I1 => s_cnt_tens, -- V<>stup z druh<75>ho <20><>ta<74>a
I2 => s_cnt_hundreds,
I3 => s_cnt_thousands,
S => s_cnt_2bit, -- Sign<67>l zo zelen<65>ho <20><>ta<74>a (v<>ber an<61>dy)
Y => s_mux_out -- Vybran<61> <20><>slica pre segmenty
);
U_DEC_SEG : dec_seg
port map (
BCD => s_mux_out, -- <20><>slica vybran<61> multiplexerom
SEG => SEGMENTS -- V<>stupn<70> port top modulu (8 bitov)
);
end Behavioral;