port(端口名：模式 数据类型名)端口名是赋予每个外部引脚的名称。模式in是是输入，out是输出。std_logic是数据类型名。component 元件名 是元件例化语句。
PORT(F:IN STD_LOGIC;CLK:IN STD_LOGIC;CARRY :IN STD_LOGIC;RIN:IN STD_LOGIC_VECTOR(3 DOWNTO 0);OUT_LOW:OUT STD_LOGIC_VECTOR(3 DOWNTO 0);OUT_HIGH:OUT STD_LOGIC_VECTOR(3 DOWNTO 0));END test;ARCHITECTURE RTL OF test IS SIGNAL F_IN:STD_LOGIC_VECTOR(1 DOWNTO 0);BEGIN PROCESS(CL...
LIBRARY IEEE; USE IEEE.STD_LOGIC_1164.ALL; ENTITY h_adder IS PORT(a,b: IN STD_LOGIC; s,c: OUT STD_LOGIC); END ENTITY h_adder; ARCHITECTURE one OF h_adder IS signal abc:std_logic_vector(1 downto 0); BEGIN abc s 答案 我觉得可能是你的双引号“出问题了,换到英文输入法输进去试...
entity sync2 is generic ( n : positive := 2 -- width ); port ( -- inputs d : in std_logic_vector (n-1 downto 0); clk : in std_logic; -- clock reset : in std_logic; -- asynchronous reset -- outputs q : out std_logic_vector (n - 1 downto 0) ); end en...
Out2 <= std_logic_vector(Gain1_out1); END rtl; To disable DeleteUnusedPorts optimization, run this command: makehdl('hdlcoder_subsys_ports_unused/DUT', 'DeleteUnusedPorts', 'off') When you set DeleteUnusedPorts to off, this port and the Add block calculation are preserved in the gene...
instd_logic;--when DIN_VLD = 1, data for transmission are validDIN_RDY :outstd_logic;--when DIN_RDY = 1, SPI master is ready to accept valid data for transmission--OUTPUT USER INTERFACEDOUT :outstd_logic_vector(WORD_SIZE-1downto0);--received data from SPI slaveDOUT_VLD :outstd_...
data : in std_logic_vector(data_width-1 downto 0); ena : in std_logic := '1'; result : out std_logic_vector(result_width-1 downto 0) sclr : in std_logic := '0' ); altsquare is also defined in altera_mf_components.vhd (c:\..\sim_lib) at line 1643 comp...
m序列vhdl程序,多项式f(x)=1+x^2+x^3+x^4+x^8 ,library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_arith.all; use ieee.std_logic_unsigned.all; entity PRSG is port (reset,clk:in std_logic; sel:in std_logic_vector(1 downto 0); dout:out st
reset : IN std_logic; u : IN std_logic_vector(7 DOWNTO 0); y : OUT std_logic_vector(7 DOWNTO 0)); END nibble_swap_7b; ARCHITECTURE fsm_SFHDL OF nibble_swap_7b IS BEGIN -- NIBBLE SWAP y <= u(3 DOWNTO 0) & u(7 DOWNTO 4); ...
GCLK,BTNU:instd_logic; LDS:outstd_logic_vector(7downto0) );endLED;architectureBehavioralofLEDis-- 计数signalcount:std_logic_vector(25downto0);signalclk_temp:std_logic;signalQ_temp:std_logic;signalLDS_temp:std_logic_vector(7downto0):="00000001";beginprocess(GCLK,BTNU)--分频系数variableN...