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Added SSRAM plugin for LFR developpement model
Added SSRAM plugin for LFR developpement model

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leon3mp.vhd
163 lines | 5.1 KiB | text/x-vhdl | VhdlLexer
Added LFR DM board files and miniAMBA design tesed under Libero9.1 sp1
r78 ----------------------------------------------------------------------------------
-- Company:
-- Engineer:
--
-- Create Date: 17:16:12 03/29/2011
-- Design Name:
-- Module Name: top - Behavioral
-- Project Name:
-- Target Devices:
-- Tool versions:
-- Description:
--
-- Dependencies:
--
-- Revision:
-- Revision 0.01 - File Created
-- Additional Comments:
--
----------------------------------------------------------------------------------
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
library grlib;
use grlib.amba.all;
use work.config.all;
library gaisler;
use gaisler.uart.all;
use gaisler.misc.all;
use gaisler.leon3.all;
library techmap;
use techmap.gencomp.all;
use techmap.allclkgen.all;
library lpp;
use lpp.general_purpose.all;
use lpp.lpp_uart.all;
entity top is
generic (
fabtech : integer := CFG_FABTECH;
memtech : integer := CFG_MEMTECH;
padtech : integer := CFG_PADTECH;
clktech : integer := CFG_CLKTECH;
disas : integer := CFG_DISAS; -- Enable disassembly to console
dbguart : integer := CFG_DUART; -- Print UART on console
pclow : integer := CFG_PCLOW);
Port ( clk50MHz : in STD_LOGIC;
reset : in STD_LOGIC;
led : out std_logic_vector(1 downto 0);
--
ahbrxd : in std_ulogic;
ahbtxd : out std_ulogic;
urxd1 : in std_ulogic;
utxd1 : out std_ulogic
);
end top;
architecture Behavioral of top is
--- AHB / APB
signal apbi : apb_slv_in_type;
signal apbo : apb_slv_out_vector := (others => apb_none);
signal ahbsi : ahb_slv_in_type;
signal ahbso : ahb_slv_out_vector := (others => ahbs_none);
signal ahbmi : ahb_mst_in_type;
signal ahbmo : ahb_mst_out_vector := (others => ahbm_none);
-- AHBUART
signal ahbuarti: uart_in_type;
signal ahbuarto: uart_out_type;
signal apbuarti: uart_in_type;
signal apbuarto: uart_out_type;
signal rxd2 : std_ulogic;
signal rxd1 : std_ulogic;
signal txd1 : std_ulogic;
signal vcc : std_logic_vector(4 downto 0);
signal gnd : std_logic_vector(4 downto 0);
--signal LED_rotary : std_logic_vector(7 downto 0);
signal clkm : std_ulogic;
signal lclk : std_ulogic;
signal rstn : std_ulogic;
signal clk2x : std_ulogic;
signal rstraw : std_logic;
signal rstneg : std_logic;
signal lock : std_logic;
signal cgi : clkgen_in_type;
signal cgo : clkgen_out_type;
constant BOARD_FREQ : integer := 50000; -- input frequency in KHz
begin
----------------------------------------------------------------------
--- Reset and Clock generation -------------------------------------
----------------------------------------------------------------------
vcc <= (others => '1'); gnd <= (others => '0');
cgi.pllctrl <= "00"; cgi.pllrst <= rstraw;
rstneg <= reset;
rst0 : rstgen port map (rstneg, clkm, lock, rstn, rstraw);
lock <= cgo.clklock;
clk_pad : clkpad generic map (tech => padtech) port map (clk50MHz, lclk);
clkgen0 : clkgen -- clock generator MUL 4, DIV 5
generic map (fabtech, CFG_CLKMUL, CFG_CLKDIV, 0, 0, 0, 0, 0, BOARD_FREQ, 0)
port map (lclk, gnd(0), clkm, open, open, open, open, cgi, cgo, open, open, clk2x);
--------------------------------------
--- CLK_DIVIDER ----------------------
--------------------------------------
clk_divider0 : Clk_divider
generic map (OSC_freqHz => 50000000, TargetFreq_Hz => 5)
Port map( clkm, rstn, led(1));
-------------------------------
--- AHB CONTROLLER ------------
-------------------------------
ahb0 : ahbctrl -- AHB arbiter/multiplexer
generic map (defmast => CFG_DEFMST, split => CFG_SPLIT,
rrobin => CFG_RROBIN, ioaddr => CFG_AHBIO, ioen => 1,
nahbm => CFG_NCPU+CFG_AHB_UART,
nahbs => 2)
port map (rstn, clkm, ahbmi, ahbmo, ahbsi, ahbso);
-------------------------------
--- AHBUART -------------------
-------------------------------
dcom0 : ahbuart -- AMBA AHB Serial Debug Interface
generic map (hindex => CFG_NCPU, pindex => 4, paddr => 7)
port map (rstn, clkm, ahbuarti, ahbuarto, apbi, apbo(4), ahbmi, ahbmo(CFG_NCPU));
dsurx_pad : inpad generic map (tech => padtech) port map (ahbrxd, rxd2);
dsutx_pad : outpad generic map (tech => padtech) port map (ahbtxd, ahbuarto.txd);
ahbuarti.rxd <= rxd2;
----------------------------------------------------------------------
--- APB Bridge and various periherals --------------------------------
----------------------------------------------------------------------
apb0 : apbctrl -- AHB/APB bridge
generic map (hindex => 1, haddr => CFG_APBADDR,nslaves => 1)
port map (rstn, clkm, ahbsi, ahbso(1), apbi, apbo);
uart1 : APB_UART
generic map(
pindex => 0,
paddr => 0)
port map(
clk => clkm, --! Horloge du composant
rst => rstn, --! Reset general du composant
apbi => apbi, --! Registre de gestion des entr�es du bus
apbo => apbo(0), --! Registre de gestion des sorties du bus
TXD => utxd1, --! Transmission s�rie, c�t� composant
RXD => urxd1 --! Reception s�rie, c�t� composant
);
----------------------------------
--- LED --------------------------
----------------------------------
led(0) <= not rxd1;
end Behavioral;