git.zerfleddert.de Git - raggedstone/blob - heartbeat/source/top_raggedstone.vhd

   1 --+-------------------------------------------------------------------------------------------------+
   2 --|                                                                                                                                                                                                     |
   3 --|  File:                      top.vhd                                                                         |
   4 --|                                                                                                                                                                                                     |
   5 --|  Components:        pci32lite.vhd                                                                   |
   6 --|                         pciwbsequ.vhd                                                                                                                       |
   7 --|                         pcidmux.vhd                                                                                                                                 |
   8 --|                         pciregs.vhd                                                                                                                                 |
   9 --|                         pcipargen.vhd                                                                                                                               |
  10 --|                         -- Libs --                                                                                                                                  |
  11 --|                         ona.vhd                                                                                                                                             |
  12 --|                                                                                                                                                                                                     |
  13 --|      Description:   RS1 PCI Demo : (TOP) Main file.                                                                                 |
  14 --|                                                                                                                                                                                             |
  15 --|                                                                                                                                                                             |
  16 --|                                                                                                                                                                                                     |
  17 --+-------------------------------------------------------------------------------------------------+
  18 --|                                                                                                                                                                                                     |
  19 --|  Revision history :                                                                                                                                                         |
  20 --|  Date                 Version       Author  Description                                                                                                             |
  21 --|                                                                                                                                                                                                     |
  22 --|                                                                                                                                                                                                     |
  23 --|  To do:                                                                                                                                                                                     |
  24 --|                                                                                                                                                                                                     |
  25 --+-------------------------------------------------------------------------------------------------+
  26
  27
  28 --+-----------------------------------------------------------------------------+
  29 --|                                                                     LIBRARIES                                                                       |
  30 --+-----------------------------------------------------------------------------+
  31
  32 library ieee;
  33 use ieee.std_logic_1164.all;
  34 use ieee.std_logic_arith.all;
  35 use ieee.std_logic_unsigned.all;
  36
  37 --+-----------------------------------------------------------------------------+
  38 --|                                                                     ENTITY                                                                          |
  39 --+-----------------------------------------------------------------------------+
  40
  41 entity raggedstone is
  42 port (
  43
  44     -- General
  45     PCI_CLK     : in std_logic;
  46     PCI_nRES    : in std_logic;
  47     PCI_nREQ    : out std_logic;
  48
  49     -- PCI target 32bits
  50     PCI_AD      : inout std_logic_vector(31 downto 0);
  51     PCI_CBE     : in std_logic_vector(3 downto 0);
  52     PCI_PAR     : out std_logic;
  53     PCI_nFRAME  : in std_logic;
  54     PCI_nIRDY   : in std_logic;
  55     PCI_nTRDY   : out std_logic;
  56     PCI_nDEVSEL : out std_logic;
  57     PCI_nSTOP   : out std_logic;
  58     PCI_IDSEL   : in std_logic;
  59     PCI_nPERR   : out std_logic;
  60     PCI_nSERR   : out std_logic;
  61     PCI_nINT    : out std_logic;
  62
  63         -- debug signals
  64         LED3    : out std_logic;
  65         LED2    : out std_logic;
  66         LED4            : out std_logic;
  67         LED5            : out std_logic;
  68         IDE1    : out std_logic;
  69         IDE2    : out std_logic;
  70         IDE3    : out std_logic;
  71         IDE4    : out std_logic
  72
  73 );
  74 end raggedstone;
  75
  76
  77 --+-----------------------------------------------------------------------------+
  78 --|                                                                     ARCHITECTURE                                                            |
  79 --+-----------------------------------------------------------------------------+
  80
  81 architecture raggedstone_arch of raggedstone is
  82
  83
  84 --+-----------------------------------------------------------------------------+
  85 --|                                                                     COMPONENTS                                                                      |
  86 --+-----------------------------------------------------------------------------+
  87
  88 component pci32tlite
  89 port (
  90
  91     -- General
  92     clk33       : in std_logic;
  93     nrst            : in std_logic;
  94
  95     -- PCI target 32bits
  96     ad          : inout std_logic_vector(31 downto 0);
  97     cbe         : in std_logic_vector(3 downto 0);
  98     par         : out std_logic;
  99     frame       : in std_logic;
 100     irdy        : in std_logic;
 101     trdy        : out std_logic;
 102     devsel      : out std_logic;
 103     stop        : out std_logic;
 104     idsel       : in std_logic;
 105     perr        : out std_logic;
 106     serr        : out std_logic;
 107     intb        : out std_logic;
 108
 109         -- Master whisbone
 110     wb_adr_o     : out std_logic_vector(24 downto 1);
 111         wb_dat_i     : in std_logic_vector(15 downto 0);
 112     wb_dat_o     : out std_logic_vector(15 downto 0);
 113         wb_sel_o     : out std_logic_vector(1 downto 0);
 114     wb_we_o      : out std_logic;
 115         wb_stb_o     : out std_logic;
 116         wb_cyc_o     : out std_logic;
 117         wb_ack_i     : in std_logic;
 118         wb_err_i     : in std_logic;
 119         wb_int_i     : in std_logic;
 120
 121         -- debug signals
 122         debug_init       : out std_logic;
 123         debug_access : out std_logic
 124
 125         );
 126 end component;
 127
 128 component heartbeat
 129 port (
 130         clk_i : in std_logic;
 131         nrst_i : in std_logic;
 132         led2_o : out std_logic;
 133         led3_o : out std_logic;
 134         led4_o : out std_logic;
 135         led5_o : out std_logic;
 136         led6_o : out std_logic;
 137         led7_o : out std_logic;
 138         led8_o : out std_logic;
 139         led9_o : out std_logic
 140 );
 141 end component;
 142
 143
 144 --+-----------------------------------------------------------------------------+
 145 --|                                                                     CONSTANTS                                                                       |
 146 --+-----------------------------------------------------------------------------+
 147 --+-----------------------------------------------------------------------------+
 148 --|                                                                     SIGNALS                                                                         |
 149 --+-----------------------------------------------------------------------------+
 150
 151         signal  wb_adr :                std_logic_vector(24 downto 1);
 152         signal  wb_dat_out :    std_logic_vector(15 downto 0);
 153         signal  wb_dat_in :             std_logic_vector(15 downto 0);
 154         signal  wb_sel :                std_logic_vector(1 downto 0);
 155         signal  wb_we :                 std_logic;
 156         signal  wb_stb :                std_logic;
 157         signal  wb_cyc :                std_logic;
 158         signal  wb_ack :                std_logic;
 159         signal  wb_err :                std_logic;
 160         signal  wb_int :                std_logic;
 161
 162
 163 begin
 164
 165         PCI_nREQ <= '1';
 166
 167 --+-----------------------------------------+
 168 --|  PCI Target                                                         |
 169 --+-----------------------------------------+
 170
 171 u_pci: component pci32tlite
 172 port map(
 173         clk33 =>                PCI_CLK,
 174         nrst =>                 PCI_nRES,
 175         ad =>                   PCI_AD,
 176         cbe =>                  PCI_CBE,
 177         par =>                  PCI_PAR,
 178         frame =>                PCI_nFRAME,
 179         irdy =>         PCI_nIRDY,
 180         trdy =>         PCI_nTRDY,
 181         devsel =>       PCI_nDEVSEL,
 182         stop =>         PCI_nSTOP,
 183         idsel =>        PCI_IDSEL,
 184         perr =>         PCI_nPERR,
 185         serr =>         PCI_nSERR,
 186         intb =>         PCI_nINT,
 187         wb_adr_o =>             wb_adr,
 188                 wb_dat_i =>             wb_dat_out,
 189         wb_dat_o =>     wb_dat_in,
 190                 wb_sel_o =>             wb_sel,
 191         wb_we_o =>              wb_we,
 192                 wb_stb_o =>             wb_stb,
 193                 wb_cyc_o =>             wb_cyc,
 194                 wb_ack_i =>             wb_ack,
 195                 wb_err_i =>             wb_err,
 196                 wb_int_i =>             wb_int
 197 --              debug_init =>   LED3,
 198 --              debug_access => LED2
 199                 );
 200
 201 --+-----------------------------------------+
 202 --|  WB-7seg                                                    |
 203 --+-----------------------------------------+
 204
 205 my_heartbeat: component heartbeat
 206 port map(
 207         clk_i => PCI_CLK,
 208         nrst_i => PCI_nRES,
 209         led2_o => LED2,
 210         led3_o => LED3,
 211         led4_o => LED4,
 212         led5_o => LED5,
 213         led6_o => IDE1,
 214         led7_o => IDE2,
 215         led8_o => IDE3,
 216         led9_o => IDE4
 217 );
 218
 219 end raggedstone_arch;