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- ----------------------------------------------------------------------------------
- -- Company: INSA-Toulouse
- -- Engineer: Paul Faure
- --
- -- Create Date: 05.07.2021 15:20:28
- -- Module Name: Compteur_X - Behavioral
- -- Project Name: Processeur sécurisé
- -- Target Devices: Basys 3 ARTIX7
- -- Tool Versions: Vivado 2016.4
- -- Description: Compteur la coordonnée X du VGA
- --
- -- Dependencies:
- -- - None
- ----------------------------------------------------------------------------------
-
-
- library IEEE;
- use IEEE.STD_LOGIC_1164.ALL;
-
- use work.ScreenProperties.all;
-
- entity Compteur_X is
- Port ( CLK : in STD_LOGIC;
- RST : in STD_LOGIC;
- Value : out X_T;
- Carry : out STD_LOGIC);
- end Compteur_X;
-
- architecture Behavioral of Compteur_X is
-
- signal current : X_T := 0;
- signal intern_Carry : STD_LOGIC := '0';
-
- begin
-
- process
- begin
- wait until CLK'event and CLK = '1';
- if (RST = '0') then
- current <= 0;
- else
- current <= current + 1;
- if (current = screen_width + X_PulseWidth + X_FrontPorch + X_BackPorch - 1) then
- intern_Carry <= '1';
- current <= 0;
- else
- intern_Carry <= '0';
- end if;
- end if;
- end process;
-
- Value <= current;
- Carry <= intern_Carry;
-
- end Behavioral;
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