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FPGA 的代码
最高优先级编码器.txt
-- Highest Priority Encoder
-- download from www.pld.com.cn & www.fpga.com.cn
LIBRARY ieee;
USE ieee.std_logic_1164.ALL;
entity priority is
port(I : in bit_vector(7 downto 0); --input
各种功能的计数器.vhd
-- MAX+plus II VHDL Example
-- Efficient Counter Inference
-- Copyright (c) 1994 Altera Corporation
-- download from:www.pld.com.cn & www.fpga.com.cn
Library IEEE ;
use IEEE.std_logic_1164.all
一个简单的状态机.vhd
-- MAX+plus II VHDL Example
-- State Machine
-- Copyright (c) 1994 Altera Corporation
-- download from: www.pld.com.cn & www.fpga.com.cn
Library IEEE ;
use IEEE.std_logic_1164.all ;
ENTIT
带load、clr等功能的寄存器.txt
-- Register Inference
-- Download from: http://www.fpga.com.cn
Library IEEE ;
use IEEE.std_logic_1164.all ;
ENTITY reginf IS
PORT
(
d, clk, clr, pre, load, data : IN BIT;
q1, q2,
条件赋值：使用when else语句.vhd
-- Conditional Signal Assignment
-- download from: www.pld.com.cn & www.fpga.com.cn
Library IEEE ;
use IEEE.std_logic_1164.all ;
ENTITY condsig IS
PORT
(
input0, input1, sel : IN BI
加法器：generate语句的应用.txt
-- n-bit Adder using the Generate Statement
-- download from: www.fpga.com.cn & www.pld.com.cn
library IEEE;
use IEEE.Std_logic_1164.all;
ENTITY addn IS
GENERIC(n : POSITIVE := 3); --no.
加法器：generate语句的应用.txt
-- n-bit Adder using the Generate Statement
-- download from: www.fpga.com.cn & www.pld.com.cn
library IEEE;
use IEEE.Std_logic_1164.all;
ENTITY addn IS
GENERIC(n : POSITIVE := 3); --no.
带load、clr等功能的寄存器.vhd
-- Register Inference
-- Download from: http://www.fpga.com.cn
Library IEEE ;
use IEEE.std_logic_1164.all ;
ENTITY reginf IS
PORT
(
d, clk, clr, pre, load, data : IN BIT;
q1, q2,
条件赋值：使用when else语句.txt
-- Conditional Signal Assignment
-- download from: www.pld.com.cn & www.fpga.com.cn
Library IEEE ;
use IEEE.std_logic_1164.all ;
ENTITY condsig IS
PORT
(
input0, input1, sel : IN BI
用状态机实现的计数器.txt
-- MAX+plus II VHDL Example
-- State Machine
-- Copyright (c) 1994 Altera Corporation
-- download from: www.pld.com.cn & www.fpga.com.cn
Library IEEE ;
use IEEE.std_logic_1164.all ;
ENTIT