Maverick_ 15 17 ноября, 2016 Опубликовано 17 ноября, 2016 · Жалоба собственно само описание (для простоты тестбенча использовал инициализацию блочной памяти) library ieee; use IEEE.STD_LOGIC_1164.ALL; use IEEE.STD_LOGIC_ARITH.ALL; use IEEE.STD_LOGIC_UNSIGNED.ALL; entity xxx is port ( clk : in std_logic; rst : in std_logic; we : in std_logic; din : in std_logic_vector (127 downto 0); data_out : out std_logic_vector (15 downto 0); memory_width_read : in std_logic_vector (6 downto 0) ); end xxx; architecture rtl of xxx is attribute ramstyle : string; type srl_ram is array (127 downto 0) of std_logic_vector(127 downto 0); signal ram : srl_ram := --(OTHERS => (OTHERS => '0')); ( --57 bit "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110110 00000000000000000000000000000000000000000000000000110",--64 "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110110 00000000000000000000000000000000000000000000000000110", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110000 00000000000000000000000000000000000000000000000000000", "000000000000000000000000000000000000000000000000000000000000000000000001111 11111111111111111111111111111111111111111111111111111", "111111111111111111111111111111111111111111111111111111111111111111111110110 00000000000000000000000000000000000000000000000000110" ); --attribute ramstyle of ram : signal is "MLAB,no_rw_check"; constant mem_width_read_max_val : integer := 128; signal mem_width_read : integer range 0 to mem_width_read_max_val := 57; signal cnt : std_logic_vector (5 downto 0):= (OTHERS => '0'); --signal reg_mux, reg_reg_mux : std_logic := '0'; signal reg_data_mem, reg_new, reg_old : STD_LOGIC_VECTOR(127 DOWNTO 0):= (OTHERS => '0'); signal addr_mem : STD_LOGIC_VECTOR(6 DOWNTO 0):= (OTHERS => '0'); signal bit_counter, bit_counter_reg : integer range 0 to 127 := 0; signal slash_reg_data : STD_LOGIC_VECTOR (mem_width_read_max_val*2 DOWNTO 0 ):= (OTHERS => '0'); function prepare_bit_vector (reg_data_mem_v : std_logic_vector(127 downto 0); bit_vector_s : std_logic_vector(mem_width_read_max_val*2 DOWNTO 0 ); bit_quantity : integer range 0 to 16 ) return std_logic_vector is variable result : std_logic_vector (mem_width_read_max_val*2 DOWNTO 0 ):= (OTHERS => '0'); variable reg_result : bit_vector (mem_width_read_max_val*2 DOWNTO 0 ):= (OTHERS => '0'); variable i : integer := 0; begin result(mem_width_read_max_val-1 downto 0) := reg_data_mem_v ( (mem_width_read_max_val - 1) downto 0) ; reg_result := to_bitvector(result); reg_result := reg_result sll bit_quantity; result := to_stdlogicvector(reg_result); --result(bit_quantity-1 downto 0) := bit_vector_s (15+bit_quantity downto 16); i := 0; while (i < bit_quantity) loop result(i) := bit_vector_s(16+i); i:=i+1; end loop; return result; end function; begin process (clk) begin if rising_edge(clk) then if we = '1' then ram(conv_integer(addr_mem)) <= din; end if; reg_data_mem <= ram(conv_integer(addr_mem)); end if; end process; data_out <= slash_reg_data(15 downto 0); process (clk) begin if rising_edge(clk) then if rst = '1' then cnt <= (OTHERS => '0'); else mem_width_read <= conv_integer(memory_width_read); bit_counter_reg <= bit_counter; if ( bit_counter / 16 = 0) then cnt <= cnt + "000001"; addr_mem <= addr_mem + '1'; bit_counter <= mem_width_read + bit_counter - 16; else bit_counter <= bit_counter - 16; end if; if (cnt > 0) then if (bit_counter_reg = 0) then slash_reg_data( (mem_width_read_max_val - 1) downto 0) <= reg_data_mem( (mem_width_read_max_val - 1) downto 0); elsif (bit_counter_reg <= 16) then slash_reg_data <= prepare_bit_vector(reg_data_mem, slash_reg_data, bit_counter_reg); else slash_reg_data( ((mem_width_read_max_val*2)-16) DOWNTO 0 ) <= slash_reg_data( (mem_width_read_max_val*2) DOWNTO 16 ); end if; end if; end if; end if; end process; end rtl; testbench library IEEE; use IEEE.STD_LOGIC_1164.ALL; --use IEEE.STD_LOGIC_ARITH.ALL; use IEEE.STD_LOGIC_UNSIGNED.ALL; use ieee.numeric_std.all; ENTITY xxx_vhd_tst IS END xxx_vhd_tst; ARCHITECTURE xxx_arch OF xxx_vhd_tst IS -- constants -- signals SIGNAL clk : STD_LOGIC; SIGNAL memory_width_read : std_logic_vector (6 downto 0); SIGNAL data_out : STD_LOGIC_VECTOR(15 DOWNTO 0); SIGNAL din : STD_LOGIC_VECTOR(127 DOWNTO 0); SIGNAL rst : STD_LOGIC; SIGNAL we : STD_LOGIC; COMPONENT xxx PORT ( clk : IN STD_LOGIC; memory_width_read : in std_logic_vector (6 downto 0); data_out : OUT STD_LOGIC_VECTOR(15 DOWNTO 0); din : IN STD_LOGIC_VECTOR(127 DOWNTO 0); rst : IN STD_LOGIC; we : IN STD_LOGIC ); END COMPONENT; BEGIN i1 : xxx PORT MAP ( -- list connections between master ports and signals clk => clk, memory_width_read => memory_width_read, data_out => data_out, din => din, rst => rst, we => we ); clk_gen: process begin clk <= '1'; wait for 2.5 ns; clk <= '0'; wait for 2.5 ns; end process; rst_gen: process begin rst <= '1'; wait for 5 ns; rst <= '0'; wait; end process; din <= (OTHERS => '0'); we <= '0'; memory_width_read <= std_logic_vector(to_unsigned(57, memory_width_read'length)); --57 bit END xxx_arch; Цитата Поделиться сообщением Ссылка на сообщение Поделиться на другие сайты Поделиться
Vascom 0 17 ноября, 2016 Опубликовано 17 ноября, 2016 · Жалоба Можно же просто двухпортовую память сделать. С разной шириной шины на запись и чтение. Цитата Поделиться сообщением Ссылка на сообщение Поделиться на другие сайты Поделиться
Maverick_ 15 17 ноября, 2016 Опубликовано 17 ноября, 2016 · Жалоба Можно же просто двухпортовую память сделать. С разной шириной шины на запись и чтение. попробуйте сделать 57, 18 или 112 бит в 16 бит Я пробовал когда-то давно, ничего не получилось, там есть ограничения по разрядностям вход/выход и их соотношению Цитата Поделиться сообщением Ссылка на сообщение Поделиться на другие сайты Поделиться
Vascom 0 18 ноября, 2016 Опубликовано 18 ноября, 2016 · Жалоба То есть память получается на регистрах? Цитата Поделиться сообщением Ссылка на сообщение Поделиться на другие сайты Поделиться
Maverick_ 15 18 ноября, 2016 Опубликовано 18 ноября, 2016 · Жалоба То есть память получается на регистрах? блочная. там так сказать конвеер организован который делает из N бит, которые прочитались из памяти раскладывает по 16 бит. Для понимания просимулируйте и все увидите... :) во вложении - do файлы для моделсима do_files.zip Цитата Поделиться сообщением Ссылка на сообщение Поделиться на другие сайты Поделиться
