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[/] [canny_edge_detector/] [trunk/] [vhdl_src/] [buffer.vhd] - Blame information for rev 2

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1 2 angelobacc 
library IEEE;
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use IEEE.STD_LOGIC_1164.ALL;
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USE ieee.numeric_std.ALL;
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use IEEE.STD_LOGIC_UNSIGNED.ALL;
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entity CacheSystem is
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  generic (
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        DATA_WIDTH : integer := 8;
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        WINDOW_SIZE : integer := 9;
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        ROW_BITS : integer := 9;
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        COL_BITS : integer := 10;
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        NO_OF_ROWS : integer := 480;
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        NO_OF_COLS : integer := 640
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        );
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  port(
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        clk : in std_logic;
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        fsync_in : in std_logic;
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        pdata_in : in std_logic_vector(DATA_WIDTH -1 downto 0);
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        --fsync_out : out std_logic;
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        pdata_out1 : out std_logic_vector(DATA_WIDTH -1 downto 0);--primo pixel a sx
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        pdata_out2 : out std_logic_vector(DATA_WIDTH -1 downto 0);
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        pdata_out3 : out std_logic_vector(DATA_WIDTH -1 downto 0);
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        pdata_out4 : out std_logic_vector(DATA_WIDTH -1 downto 0);
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        pdata_out5 : out std_logic_vector(DATA_WIDTH -1 downto 0);
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        pdata_out6 : out std_logic_vector(DATA_WIDTH -1 downto 0);
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        pdata_out7 : out std_logic_vector(DATA_WIDTH -1 downto 0);
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        pdata_out8 : out std_logic_vector(DATA_WIDTH -1 downto 0);
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        pdata_out9 : out std_logic_vector(DATA_WIDTH -1 downto 0) -- ultimo px a destra
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        );
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  end CacheSystem;
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architecture CacheSystem of CacheSystem is
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signal cache1 : std_logic_vector((WINDOW_SIZE*DATA_WIDTH) -1 downto 0);
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begin
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--
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-- fsync_out <= fsync_temp;
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-- fsync_buffer <= fsync_in OR fsync_temp;
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--
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-- fsync_delayer : process (clk)
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-- begin
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--      if rising_edge(clk) then
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--        fsync_store <= fsync_store(LATENCY-2 downto 0) & fsync_in;
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--        fsync_temp <= fsync_store(LATENCY-1);
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--      end if;
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-- end process fsync_delayer;
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-- update_reg : process (clk)
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-- begin
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--   if rising_edge(clk) then
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--          RowsCounter_r <= RowsCounter_x;
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--     ColsCounter_r <= ColsCounter_x;
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--        end if;
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-- end process update_reg;
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--
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-- counter : process (clk, fsync_temp)
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-- begin
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--   --RowsCounter_x <= RowsCounter_r;
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--   --ColsCounter_x <= ColsCounter_r;
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--        if(fsync_temp = '0') then
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--          RowsCounter_x <= (others => '0');
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--          ColsCounter_x <= (others => '0');
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--        elsif(clk'event and clk = '1') then
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--          if ColsCounter_r /= std_logic_vector(to_unsigned(NO_OF_COLS-1, COL_BITS)) then
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--            ColsCounter_x <= ColsCounter_r + 1;
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--          else
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--            RowsCounter_x <= RowsCounter_r + 1;
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--                 ColsCounter_x <= (others => '0');
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--          end if;
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--   end if;
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-- end process counter;
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  ShiftingProcess : process (clk, fsync_in)
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  begin
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        if rising_edge(clk) then
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        if fsync_in = '1' then
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          cache1(((WINDOW_SIZE-1)*DATA_WIDTH-1) downto 0) <= cache1(((WINDOW_SIZE-0)*DATA_WIDTH-1) downto (DATA_WIDTH));
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          cache1(((WINDOW_SIZE-0)*DATA_WIDTH-1) downto ((WINDOW_SIZE-1)*DATA_WIDTH)) <= pdata_in;
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        end if; -- clk
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        end if;
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  end process ShiftingProcess;
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  EmittingProcess : process (clk)
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  begin
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    if rising_edge(clk) then
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    if fsync_in = '1' then
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--
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--        -- 1 top left
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--        if ColsCounter_r = "0000000000" OR ColsCounter_r = std_logic_vector(to_unsigned(NO_OF_COLS-1, COL_BITS)) then
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--          pdata_out9 <= cache1(((WINDOW_SIZE-0)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-1)*DATA_WIDTH));
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--               pdata_out8 <= cache1(((WINDOW_SIZE-1)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-2)*DATA_WIDTH));
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--               pdata_out7 <= cache1(((WINDOW_SIZE-2)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-3)*DATA_WIDTH));
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--     pdata_out6 <= cache1(((WINDOW_SIZE-3)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-4)*DATA_WIDTH));
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--               pdata_out5 <= cache1(((WINDOW_SIZE-4)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-5)*DATA_WIDTH));
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--               pdata_out4 <= cache1(((WINDOW_SIZE-4)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-5)*DATA_WIDTH));
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--               pdata_out3 <= cache1(((WINDOW_SIZE-4)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-5)*DATA_WIDTH));
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--               pdata_out2 <= cache1(((WINDOW_SIZE-4)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-5)*DATA_WIDTH));
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--               pdata_out1 <= cache1(((WINDOW_SIZE-4)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-5)*DATA_WIDTH));
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--
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--        elsif ColsCounter_r = "0000000001" OR ColsCounter_r = std_logic_vector(to_unsigned(NO_OF_COLS-2, COL_BITS)) then
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--          pdata_out9 <= cache1(((WINDOW_SIZE-0)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-1)*DATA_WIDTH));
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--               pdata_out8 <= cache1(((WINDOW_SIZE-1)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-2)*DATA_WIDTH));
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--               pdata_out7 <= cache1(((WINDOW_SIZE-2)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-3)*DATA_WIDTH));
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--     pdata_out6 <= cache1(((WINDOW_SIZE-3)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-4)*DATA_WIDTH));
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--               pdata_out5 <= cache1(((WINDOW_SIZE-4)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-5)*DATA_WIDTH));
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--               pdata_out4 <= cache1(((WINDOW_SIZE-5)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-6)*DATA_WIDTH));
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--               pdata_out3 <= cache1(((WINDOW_SIZE-4)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-5)*DATA_WIDTH));
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--               pdata_out2 <= cache1(((WINDOW_SIZE-4)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-5)*DATA_WIDTH));
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--               pdata_out1 <= cache1(((WINDOW_SIZE-4)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-5)*DATA_WIDTH));
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--
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--        elsif ColsCounter_r = "0000000010" OR ColsCounter_r = std_logic_vector(to_unsigned(NO_OF_COLS-3, COL_BITS)) then
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--          pdata_out9 <= cache1(((WINDOW_SIZE-0)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-1)*DATA_WIDTH));
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--               pdata_out8 <= cache1(((WINDOW_SIZE-1)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-2)*DATA_WIDTH));
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--               pdata_out7 <= cache1(((WINDOW_SIZE-2)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-3)*DATA_WIDTH));
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--     pdata_out6 <= cache1(((WINDOW_SIZE-3)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-4)*DATA_WIDTH));
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--               pdata_out5 <= cache1(((WINDOW_SIZE-4)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-5)*DATA_WIDTH));
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--               pdata_out4 <= cache1(((WINDOW_SIZE-5)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-6)*DATA_WIDTH));
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--               pdata_out3 <= cache1(((WINDOW_SIZE-6)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-7)*DATA_WIDTH));
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--               pdata_out2 <= cache1(((WINDOW_SIZE-4)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-5)*DATA_WIDTH));
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--               pdata_out1 <= cache1(((WINDOW_SIZE-4)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-5)*DATA_WIDTH));
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--
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--        elsif ColsCounter_r = "0000000011" OR ColsCounter_r = std_logic_vector(to_unsigned(NO_OF_COLS-4, COL_BITS)) then
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--          pdata_out9 <= cache1(((WINDOW_SIZE-0)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-1)*DATA_WIDTH));
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--               pdata_out8 <= cache1(((WINDOW_SIZE-1)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-2)*DATA_WIDTH));
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--               pdata_out7 <= cache1(((WINDOW_SIZE-2)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-3)*DATA_WIDTH));
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--     pdata_out6 <= cache1(((WINDOW_SIZE-3)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-4)*DATA_WIDTH));
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--               pdata_out5 <= cache1(((WINDOW_SIZE-4)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-5)*DATA_WIDTH));
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--               pdata_out4 <= cache1(((WINDOW_SIZE-5)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-6)*DATA_WIDTH));
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--               pdata_out3 <= cache1(((WINDOW_SIZE-6)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-7)*DATA_WIDTH));
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--               pdata_out2 <= cache1(((WINDOW_SIZE-7)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-8)*DATA_WIDTH));
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--               pdata_out1 <= cache1(((WINDOW_SIZE-4)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-5)*DATA_WIDTH));
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--
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--        else
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            pdata_out9 <= cache1(((WINDOW_SIZE-0)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-1)*DATA_WIDTH));
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                 pdata_out8 <= cache1(((WINDOW_SIZE-1)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-2)*DATA_WIDTH));
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                 pdata_out7 <= cache1(((WINDOW_SIZE-2)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-3)*DATA_WIDTH));
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       pdata_out6 <= cache1(((WINDOW_SIZE-3)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-4)*DATA_WIDTH));
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                 pdata_out5 <= cache1(((WINDOW_SIZE-4)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-5)*DATA_WIDTH));
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                 pdata_out4 <= cache1(((WINDOW_SIZE-5)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-6)*DATA_WIDTH));
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                 pdata_out3 <= cache1(((WINDOW_SIZE-6)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-7)*DATA_WIDTH));
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                 pdata_out2 <= cache1(((WINDOW_SIZE-7)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-8)*DATA_WIDTH));
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                 pdata_out1 <= cache1(((WINDOW_SIZE-8)*DATA_WIDTH - 1) downto ((WINDOW_SIZE-9)*DATA_WIDTH));
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          end if;
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--
149 
--        end if; -- RowsCounter_r and ColsCounter_r
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--      else
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--        pdata_out1 <= (others =>'0');
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--        pdata_out2 <= (others =>'0');
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--        pdata_out3 <= (others =>'0');
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--        pdata_out4 <= (others =>'0');
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--        pdata_out5 <= (others =>'0');
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--        pdata_out6 <= (others =>'0');
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--        pdata_out7 <= (others =>'0');
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--        pdata_out8 <= (others =>'0');
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--        pdata_out9 <= (others =>'0');
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--      end if; --rsync_temp
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        end if; -- clk
162 
  end process EmittingProcess;
163 
end CacheSystem;
164 
 

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