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[/] [pcie_ds_dma/] [trunk/] [core/] [adm/] [main/] [ctrl_thdac.vhd] - Rev 34
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--------------------------------------------------------------------------------------------------- -- -- Title : ctrl_thdac -- Design : ADM2 -- Author : Ilya Ivanov -- Company : Instrumental System -- -- Version : 1.0 --------------------------------------------------------------------------------------------------- -- -- Description : Σοπΰβλενθε ΘΟΝ -- --------------------------------------------------------------------------------------------------- library IEEE; use IEEE.STD_LOGIC_1164.all; use IEEE.std_logic_unsigned.all ; entity ctrl_thdac is port( reset : in STD_LOGIC; clk : in STD_LOGIC; start : in STD_LOGIC; data_dac : in STD_LOGIC_VECTOR(11 downto 0); clkDAC_out : out STD_LOGIC; ld : out STD_LOGIC; ready : out STD_LOGIC; thrs : out STD_LOGIC; sdo_dac : out STD_LOGIC ); end ctrl_thdac; architecture ctrl_thdac of ctrl_thdac is signal counter : std_logic_vector(5 downto 0) ; -- counter for reset signal counter2 : std_logic_vector(7 downto 0) ; -- counter for reset signal counter_data : std_logic_vector(5 downto 0) ; -- counter for reset signal l_ready,l_ready2,l_clk:std_logic; signal l_data_dac : STD_LOGIC_VECTOR(11 downto 0); begin thrs<=reset; pr_start: process( clk,reset ) begin if(reset='0') then l_ready<='0'; elsif( rising_edge( clk ) ) then if(start='1')then l_ready<='1'; l_data_dac<=data_dac; elsif(counter_data = "11000")then l_ready<='0'; end if; end if; end process; pr_count: process( clk,reset ) begin if(reset='0') then counter <= (others => '0') ; counter_data <= (others => '0') ; elsif( rising_edge( clk ) ) then if(l_ready='1')then counter <= counter + 1 ; if (counter = "01010") then counter <= (others => '0') ; counter_data <= counter_data + 1 ; end if; else counter <= (others => '0') ; counter_data <= (others => '0') ; end if; end if; end process; pr_clk_out: process( clk,reset ) begin if(reset='0') then l_clk<='0'; clkDAC_out<='0'; elsif( rising_edge( clk ) ) then if(counter = "101")then l_clk<=not l_clk; end if; clkDAC_out<=l_clk; end if; end process; --clkDAC_out<=clk; pr_data_out: process( clk,reset ) begin if(reset='0') then sdo_dac<='0'; elsif( rising_edge( clk ) ) then if(counter = "00010" )then if( counter_data="00000")then sdo_dac<=l_data_dac(11); elsif( counter_data="00010")then sdo_dac<=l_data_dac(10); elsif( counter_data="00100")then sdo_dac<=l_data_dac(9); elsif( counter_data="00110")then sdo_dac<=l_data_dac(8); elsif( counter_data="01000")then sdo_dac<=l_data_dac(7); elsif( counter_data="01010")then sdo_dac<=l_data_dac(6); elsif( counter_data="01100")then sdo_dac<=l_data_dac(5); elsif( counter_data="01110")then sdo_dac<=l_data_dac(4); elsif( counter_data="10000")then sdo_dac<=l_data_dac(3); elsif( counter_data="10010")then sdo_dac<=l_data_dac(2); elsif( counter_data="10100")then sdo_dac<=l_data_dac(1); elsif( counter_data="10110")then sdo_dac<=l_data_dac(0); end if; end if; end if; end process; pr_count2: process( clk,reset ) begin if(reset='0') then counter2 <= (others => '0') ; elsif( rising_edge( clk ) ) then if(l_ready2='1')then counter2 <= counter2 + 1 ; else counter2 <= (others => '0') ; end if; end if; end process; pr_ready2: process( clk,reset ) begin if(reset='0') then l_ready2<='0'; ld<='0'; elsif( rising_edge( clk ) ) then if(counter_data = "10111")then l_ready2<='1'; elsif(counter2 = "1010")then ld<='1'; elsif(counter2 = "11111")then ld<='0'; elsif(counter2 = "110110")then l_ready2<='0'; end if; end if; end process; pr_redy: process( clk,reset ) begin if(reset='0') then ready<='1'; elsif( rising_edge( clk ) ) then ready<=not (l_ready or l_ready2); end if; end process; end ctrl_thdac;
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