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1 | ------------------------------------------------------------------------------ | |
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2 | -- This file is a part of the LPP VHDL IP LIBRARY | |
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3 | -- Copyright (C) 2009 - 2010, Laboratory of Plasmas Physic - CNRS | |
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4 | -- | |
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5 | -- This program is free software; you can redistribute it and/or modify | |
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6 | -- it under the terms of the GNU General Public License as published by | |
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7 | -- the Free Software Foundation; either version 2 of the License, or | |
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8 | -- (at your option) any later version. | |
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9 | -- | |
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10 | -- This program is distributed in the hope that it will be useful, | |
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11 | -- but WITHOUT ANY WARRANTY; without even the implied warranty of | |
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12 | -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
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13 | -- GNU General Public License for more details. | |
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14 | -- | |
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15 | -- You should have received a copy of the GNU General Public License | |
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16 | -- along with this program; if not, write to the Free Software | |
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17 | -- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
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18 | ------------------------------------------------------------------------------- | |
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19 | -- APB_MULTI_DIODE.vhd | |
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20 | ||
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21 | library ieee; | |
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22 | use ieee.std_logic_1164.all; | |
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23 | --use ieee.numeric_std.all; | |
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24 | library grlib; | |
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25 | use grlib.amba.all; | |
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26 | use grlib.stdlib.all; | |
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27 | use grlib.devices.all; | |
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28 | library lpp; | |
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29 | use lpp.lpp_amba.all; | |
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30 | ||
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31 | ||
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32 | entity APB_MULTI_DIODE is | |
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33 | generic ( | |
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34 | pindex : integer := 0; | |
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35 | paddr : integer := 0; | |
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36 | pmask : integer := 16#fff#; | |
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37 | pirq : integer := 0; | |
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38 | abits : integer := 8); | |
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39 | port ( | |
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40 | rst : in std_ulogic; | |
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41 | clk : in std_ulogic; | |
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42 | apbi : in apb_slv_in_type; | |
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43 | apbo : out apb_slv_out_type; | |
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44 | LED : out std_logic_vector(2 downto 0) | |
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45 | ); | |
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46 | end; | |
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47 | ||
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48 | ||
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49 | architecture AR_APB_MULTI_DIODE of APB_MULTI_DIODE is | |
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50 | ||
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51 | constant REVISION : integer := 1; | |
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52 | ||
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53 | constant pconfig : apb_config_type := ( | |
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54 | 0 => ahb_device_reg (VENDOR_LPP, LPP_MULTI_DIODE, 0, REVISION, 0), | |
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55 | 1 => apb_iobar(paddr, pmask)); | |
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56 | ||
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57 | ||
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58 | ||
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59 | type LEDregs is record | |
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60 | DATAin : std_logic_vector(31 downto 0); | |
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61 | DATAout : std_logic_vector(31 downto 0); | |
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62 | end record; | |
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63 | ||
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64 | signal r : LEDregs; | |
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65 | ||
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66 | ||
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67 | begin | |
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68 | ||
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69 | r.DATAout <= r.DATAin xor X"FFFFFFFF"; | |
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70 | ||
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71 | process(rst,clk) | |
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72 | begin | |
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73 | if rst = '0' then | |
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74 | LED <= "000"; | |
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75 | r.DATAin <= (others => '0'); | |
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76 | apbo.prdata <= (others => '0'); | |
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77 | elsif clk'event and clk = '1' then | |
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78 | ||
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79 | LED <= r.DATAin(2 downto 0); | |
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80 | ||
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81 | --APB Write OP | |
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82 | if (apbi.psel(pindex) and apbi.penable and apbi.pwrite) = '1' then | |
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83 | case apbi.paddr(abits-1 downto 2) is | |
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84 | when "000000" => | |
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85 | r.DATAin <= apbi.pwdata; | |
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86 | when others => | |
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87 | null; | |
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88 | end case; | |
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89 | end if; | |
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90 | ||
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91 | --APB READ OP | |
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92 | if (apbi.psel(pindex) and apbi.penable and (not apbi.pwrite)) = '1' then | |
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93 | case apbi.paddr(abits-1 downto 2) is | |
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94 | when "000000" => | |
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95 | apbo.prdata <= r.DATAin; | |
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96 | when others => | |
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97 | apbo.prdata <= r.DATAout; | |
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98 | end case; | |
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99 | end if; | |
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100 | ||
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101 | end if; | |
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102 | apbo.pconfig <= pconfig; | |
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103 | end process; | |
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104 | ||
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105 | ||
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106 | end ar_APB_MULTI_DIODE; No newline at end of file | |
| @@ -27,8 +27,6 use std.textio.all; | |||
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27 | 27 | |
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28 | 28 |
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29 | 29 |
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30 | ||
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31 | ||
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32 | 30 | package lpp_amba is |
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33 | 31 | |
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34 | 32 | constant VENDOR_LPP : amba_vendor_type := 16#19#; |
| @@ -38,6 +36,7 constant VENDOR_LPP : amba_vendor | |||
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38 | 36 | constant ROCKET_TM : amba_device_type := 16#001#; |
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39 | 37 | constant otherCore : amba_device_type := 16#002#; |
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40 | 38 | constant LPP_SIMPLE_DIODE : amba_device_type := 16#003#; |
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39 | constant LPP_MULTI_DIODE : amba_device_type := 16#004#; | |
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41 | 40 | |
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42 | 41 | |
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43 | 42 | component APB_SIMPLE_DIODE is |
| @@ -57,4 +56,20 component APB_SIMPLE_DIODE is | |||
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57 | 56 | end component; |
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58 | 57 | |
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59 | 58 | |
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59 | component APB_MULTI_DIODE is | |
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60 | generic ( | |
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61 | pindex : integer := 0; | |
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62 | paddr : integer := 0; | |
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63 | pmask : integer := 16#fff#; | |
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64 | pirq : integer := 0; | |
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65 | abits : integer := 8); | |
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66 | port ( | |
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67 | rst : in std_ulogic; | |
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68 | clk : in std_ulogic; | |
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69 | apbi : in apb_slv_in_type; | |
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70 | apbo : out apb_slv_out_type; | |
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71 | LED : out std_logic_vector(2 downto 0) | |
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72 | ); | |
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73 | end component; | |
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74 | ||
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60 | 75 | end; |
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