我是VHDL和Vivado的初学者，我需要在从机和主机之间建立通信；正是我需要读写。我的意思是，我的奴隶是一个内存，而我的主人是一个DDR控制器。 我使用向导创建了一个IP，但是我很迷路...这是向导返回的内容：
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
entity axitest_v1_0 is
generic (
-- Users to add parameters here
-- User parameters ends
-- Do not modify the parameters beyond this line
-- Parameters of Axi Slave Bus Interface S00_AXI
C_S00_AXI_ID_WIDTH : integer := 1;
C_S00_AXI_DATA_WIDTH : integer := 32;
C_S00_AXI_ADDR_WIDTH : integer := 7;
C_S00_AXI_AWUSER_WIDTH : integer := 0;
C_S00_AXI_ARUSER_WIDTH : integer := 0;
C_S00_AXI_WUSER_WIDTH : integer := 0;
C_S00_AXI_RUSER_WIDTH : integer := 0;
C_S00_AXI_BUSER_WIDTH : integer := 0
);
port (
-- Users to add ports here
-- User ports ends
-- Do not modify the ports beyond this line
-- Ports of Axi Slave Bus Interface S00_AXI
s00_axi_aclk : in std_logic;
s00_axi_aresetn : in std_logic;
s00_axi_awid : in std_logic_vector(C_S00_AXI_ID_WIDTH-1 downto 0);
s00_axi_awaddr : in std_logic_vector(C_S00_AXI_ADDR_WIDTH-1 downto 0);
s00_axi_awlen : in std_logic_vector(7 downto 0);
s00_axi_awsize : in std_logic_vector(2 downto 0);
s00_axi_awburst : in std_logic_vector(1 downto 0);
s00_axi_awlock : in std_logic;
s00_axi_awcache : in std_logic_vector(3 downto 0);
s00_axi_awprot : in std_logic_vector(2 downto 0);
s00_axi_awqos : in std_logic_vector(3 downto 0);
s00_axi_awregion : in std_logic_vector(3 downto 0);
s00_axi_awuser : in std_logic_vector(C_S00_AXI_AWUSER_WIDTH-1 downto 0);
s00_axi_awvalid : in std_logic;
s00_axi_awready : out std_logic;
s00_axi_wdata : in std_logic_vector(C_S00_AXI_DATA_WIDTH-1 downto 0);
s00_axi_wstrb : in std_logic_vector((C_S00_AXI_DATA_WIDTH/8)-1 downto 0);
s00_axi_wlast : in std_logic;
s00_axi_wuser : in std_logic_vector(C_S00_AXI_WUSER_WIDTH-1 downto 0);
s00_axi_wvalid : in std_logic;
s00_axi_wready : out std_logic;
s00_axi_bid : out std_logic_vector(C_S00_AXI_ID_WIDTH-1 downto 0);
s00_axi_bresp : out std_logic_vector(1 downto 0);
s00_axi_buser : out std_logic_vector(C_S00_AXI_BUSER_WIDTH-1 downto 0);
s00_axi_bvalid : out std_logic;
s00_axi_bready : in std_logic;
s00_axi_arid : in std_logic_vector(C_S00_AXI_ID_WIDTH-1 downto 0);
s00_axi_araddr : in std_logic_vector(C_S00_AXI_ADDR_WIDTH-1 downto 0);
s00_axi_arlen : in std_logic_vector(7 downto 0);
s00_axi_arsize : in std_logic_vector(2 downto 0);
s00_axi_arburst : in std_logic_vector(1 downto 0);
s00_axi_arlock : in std_logic;
s00_axi_arcache : in std_logic_vector(3 downto 0);
s00_axi_arprot : in std_logic_vector(2 downto 0);
s00_axi_arqos : in std_logic_vector(3 downto 0);
s00_axi_arregion : in std_logic_vector(3 downto 0);
s00_axi_aruser : in std_logic_vector(C_S00_AXI_ARUSER_WIDTH-1 downto 0);
s00_axi_arvalid : in std_logic;
s00_axi_arready : out std_logic;
s00_axi_rid : out std_logic_vector(C_S00_AXI_ID_WIDTH-1 downto 0);
s00_axi_rdata : out std_logic_vector(C_S00_AXI_DATA_WIDTH-1 downto 0);
s00_axi_rresp : out std_logic_vector(1 downto 0);
s00_axi_rlast : out std_logic;
s00_axi_ruser : out std_logic_vector(C_S00_AXI_RUSER_WIDTH-1 downto 0);
s00_axi_rvalid : out std_logic;
s00_axi_rready : in std_logic
);
end axitest_v1_0;
architecture arch_imp of axitest_v1_0 is
-- component declaration
component axitest_v1_0_S00_AXI is
generic (
C_S_AXI_ID_WIDTH : integer := 1;
C_S_AXI_DATA_WIDTH : integer := 32;
C_S_AXI_ADDR_WIDTH : integer := 7;
C_S_AXI_AWUSER_WIDTH : integer := 0;
C_S_AXI_ARUSER_WIDTH : integer := 0;
C_S_AXI_WUSER_WIDTH : integer := 0;
C_S_AXI_RUSER_WIDTH : integer := 0;
C_S_AXI_BUSER_WIDTH : integer := 0
);
port (
S_AXI_ACLK : in std_logic;
S_AXI_ARESETN : in std_logic;
S_AXI_AWID : in std_logic_vector(C_S_AXI_ID_WIDTH-1 downto 0);
S_AXI_AWADDR : in std_logic_vector(C_S_AXI_ADDR_WIDTH-1 downto 0);
S_AXI_AWLEN : in std_logic_vector(7 downto 0);
S_AXI_AWSIZE : in std_logic_vector(2 downto 0);
S_AXI_AWBURST : in std_logic_vector(1 downto 0);
S_AXI_AWLOCK : in std_logic;
S_AXI_AWCACHE : in std_logic_vector(3 downto 0);
S_AXI_AWPROT : in std_logic_vector(2 downto 0);
S_AXI_AWQOS : in std_logic_vector(3 downto 0);
S_AXI_AWREGION : in std_logic_vector(3 downto 0);
S_AXI_AWUSER : in std_logic_vector(C_S_AXI_AWUSER_WIDTH-1 downto 0);
S_AXI_AWVALID : in std_logic;
S_AXI_AWREADY : out std_logic;
S_AXI_WDATA : in std_logic_vector(C_S_AXI_DATA_WIDTH-1 downto 0);
S_AXI_WSTRB : in std_logic_vector((C_S_AXI_DATA_WIDTH/8)-1 downto 0);
S_AXI_WLAST : in std_logic;
S_AXI_WUSER : in std_logic_vector(C_S_AXI_WUSER_WIDTH-1 downto 0);
S_AXI_WVALID : in std_logic;
S_AXI_WREADY : out std_logic;
S_AXI_BID : out std_logic_vector(C_S_AXI_ID_WIDTH-1 downto 0);
S_AXI_BRESP : out std_logic_vector(1 downto 0);
S_AXI_BUSER : out std_logic_vector(C_S_AXI_BUSER_WIDTH-1 downto 0);
S_AXI_BVALID : out std_logic;
S_AXI_BREADY : in std_logic;
S_AXI_ARID : in std_logic_vector(C_S_AXI_ID_WIDTH-1 downto 0);
S_AXI_ARADDR : in std_logic_vector(C_S_AXI_ADDR_WIDTH-1 downto 0);
S_AXI_ARLEN : in std_logic_vector(7 downto 0);
S_AXI_ARSIZE : in std_logic_vector(2 downto 0);
S_AXI_ARBURST : in std_logic_vector(1 downto 0);
S_AXI_ARLOCK : in std_logic;
S_AXI_ARCACHE : in std_logic_vector(3 downto 0);
S_AXI_ARPROT : in std_logic_vector(2 downto 0);
S_AXI_ARQOS : in std_logic_vector(3 downto 0);
S_AXI_ARREGION : in std_logic_vector(3 downto 0);
S_AXI_ARUSER : in std_logic_vector(C_S_AXI_ARUSER_WIDTH-1 downto 0);
S_AXI_ARVALID : in std_logic;
S_AXI_ARREADY : out std_logic;
S_AXI_RID : out std_logic_vector(C_S_AXI_ID_WIDTH-1 downto 0);
S_AXI_RDATA : out std_logic_vector(C_S_AXI_DATA_WIDTH-1 downto 0);
S_AXI_RRESP : out std_logic_vector(1 downto 0);
S_AXI_RLAST : out std_logic;
S_AXI_RUSER : out std_logic_vector(C_S_AXI_RUSER_WIDTH-1 downto 0);
S_AXI_RVALID : out std_logic;
S_AXI_RREADY : in std_logic
);
end component axitest_v1_0_S00_AXI;
begin
-- Instantiation of Axi Bus Interface S00_AXI
axitest_v1_0_S00_AXI_inst : axitest_v1_0_S00_AXI
generic map (
C_S_AXI_ID_WIDTH => C_S00_AXI_ID_WIDTH,
C_S_AXI_DATA_WIDTH => C_S00_AXI_DATA_WIDTH,
C_S_AXI_ADDR_WIDTH => C_S00_AXI_ADDR_WIDTH,
C_S_AXI_AWUSER_WIDTH => C_S00_AXI_AWUSER_WIDTH,
C_S_AXI_ARUSER_WIDTH => C_S00_AXI_ARUSER_WIDTH,
C_S_AXI_WUSER_WIDTH => C_S00_AXI_WUSER_WIDTH,
C_S_AXI_RUSER_WIDTH => C_S00_AXI_RUSER_WIDTH,
C_S_AXI_BUSER_WIDTH => C_S00_AXI_BUSER_WIDTH
)
port map (
S_AXI_ACLK => s00_axi_aclk,
S_AXI_ARESETN => s00_axi_aresetn,
S_AXI_AWID => s00_axi_awid,
S_AXI_AWADDR => s00_axi_awaddr,
S_AXI_AWLEN => s00_axi_awlen,
S_AXI_AWSIZE => s00_axi_awsize,
S_AXI_AWBURST => s00_axi_awburst,
S_AXI_AWLOCK => s00_axi_awlock,
S_AXI_AWCACHE => s00_axi_awcache,
S_AXI_AWPROT => s00_axi_awprot,
S_AXI_AWQOS => s00_axi_awqos,
S_AXI_AWREGION => s00_axi_awregion,
S_AXI_AWUSER => s00_axi_awuser,
S_AXI_AWVALID => s00_axi_awvalid,
S_AXI_AWREADY => s00_axi_awready,
S_AXI_WDATA => s00_axi_wdata,
S_AXI_WSTRB => s00_axi_wstrb,
S_AXI_WLAST => s00_axi_wlast,
S_AXI_WUSER => s00_axi_wuser,
S_AXI_WVALID => s00_axi_wvalid,
S_AXI_WREADY => s00_axi_wready,
S_AXI_BID => s00_axi_bid,
S_AXI_BRESP => s00_axi_bresp,
S_AXI_BUSER => s00_axi_buser,
S_AXI_BVALID => s00_axi_bvalid,
S_AXI_BREADY => s00_axi_bready,
S_AXI_ARID => s00_axi_arid,
S_AXI_ARADDR => s00_axi_araddr,
S_AXI_ARLEN => s00_axi_arlen,
S_AXI_ARSIZE => s00_axi_arsize,
S_AXI_ARBURST => s00_axi_arburst,
S_AXI_ARLOCK => s00_axi_arlock,
S_AXI_ARCACHE => s00_axi_arcache,
S_AXI_ARPROT => s00_axi_arprot,
S_AXI_ARQOS => s00_axi_arqos,
S_AXI_ARREGION => s00_axi_arregion,
S_AXI_ARUSER => s00_axi_aruser,
S_AXI_ARVALID => s00_axi_arvalid,
S_AXI_ARREADY => s00_axi_arready,
S_AXI_RID => s00_axi_rid,
S_AXI_RDATA => s00_axi_rdata,
S_AXI_RRESP => s00_axi_rresp,
S_AXI_RLAST => s00_axi_rlast,
S_AXI_RUSER => s00_axi_ruser,
S_AXI_RVALID => s00_axi_rvalid,
S_AXI_RREADY => s00_axi_rready
);
-- Add user logic here
-- User logic ends
end arch_imp;
我认为，到了最后，我必须输入与通讯相关的代码。
答案 0 :(得分：0)
该向导返回一些模板，其中包含AXI4设备的完整逻辑（与AXI4Lite和Stream相同）。您所要做的就是将逻辑，参数和连接放置在标记的区域中。 因此，如果您创建一个新IP，该向导将生成两个文件
第一个是顶部设计，您将在Customization GUI标签的Package IP标签中看到。您可以在此处添加自定义参数，例如总线宽度。您所要做的就是在实体中创建一个新的泛型。您的逻辑放在myip_v1_0_S00_AXI中：
-- Add user logic here
<< Logic here >>
-- User logic ends
port (
-- Users to add ports here
<< Additional connections here >>
-- User ports ends
-- Do not modify the ports beyond this line
generic (
-- Users to add parameters here
<< Customization parameters here >>
-- User parameters ends
-- Do not modify the parameters beyond this line