1 | --=======================================================================================
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2 | -- TITLE : Interface synchronization to 250MHz
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3 | -- DESCRIPTION : Synchronize incoming settings to the 250MHz clock
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4 | -- FILE : interface_sync_250MHz.vhd
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5 | -- COMPANY : Micro-Cameras & Space Exploration SA
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6 | --=======================================================================================
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7 | -- CREATION
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8 | -- DATE AUTHOR PROJECT REVISION
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9 | -- 11/03/2011 JGi 110311a
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10 | --=======================================================================================
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11 | -- MODIFICATION HISTORY
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12 | -- DATE AUTHOR PROJECT REVISION COMMENTS
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13 | -- 11/03/2011 JGi 110311a Description
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14 | --=======================================================================================
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15 | -- Library Definition
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16 | library ieee;
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17 | use ieee.std_logic_1164.all;
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18 | use ieee.numeric_std.all;
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19 |
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20 | -- Entity Definition
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21 | entity interface_sync_250MHz is
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22 | port( --clock
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23 | clk_250MHz : in std_logic;
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24 | --inputs
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25 | start_run : in std_logic;
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26 | stop_run : in std_logic;
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27 | new_config : in std_logic;
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28 | general_settings : in std_logic_vector(15 downto 0);
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29 | LP_and_PED_freq : in std_logic_vector(15 downto 0);
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30 | LP1_LP2_PED_ratio : in std_logic_vector(15 downto 0);
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31 | maj_coinc_n_phys : in std_logic_vector(15 downto 0);
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32 | maj_coinc_n_calib : in std_logic_vector(15 downto 0);
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33 | trigger_delay : in std_logic_vector(15 downto 0);
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34 | TIM_delay : in std_logic_vector(15 downto 0);
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35 | dead_time : in std_logic_vector(15 downto 0);
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36 | coinc_window_phys : in std_logic_vector(15 downto 0);
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37 | coinc_window_calib : in std_logic_vector(15 downto 0);
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38 | active_FTU_list_0 : in std_logic_vector(15 downto 0);
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39 | active_FTU_list_1 : in std_logic_vector(15 downto 0);
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40 | active_FTU_list_2 : in std_logic_vector(15 downto 0);
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41 | active_FTU_list_3 : in std_logic_vector(15 downto 0);
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42 | --outputs
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43 | config_done : out std_logic;
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44 | sync_start_run : out std_logic;
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45 | sync_stop_run : out std_logic;
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46 | sync_general_settings : out std_logic_vector(7 downto 0);
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47 | sync_LP_and_PED_freq : out std_logic_vector(9 downto 0);
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48 | sync_LP1_LP2_PED_ratio : out std_logic_vector(14 downto 0);
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49 | sync_maj_coinc_n_phys : out std_logic_vector(5 downto 0);
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50 | sync_maj_coinc_n_calib : out std_logic_vector(5 downto 0);
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51 | sync_trigger_delay : out std_logic_vector(9 downto 0);
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52 | sync_TIM_delay : out std_logic_vector(9 downto 0);
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53 | sync_dead_time : out std_logic_vector(15 downto 0);
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54 | sync_coinc_window_phys : out std_logic_vector(3 downto 0);
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55 | sync_coinc_window_calib : out std_logic_vector(3 downto 0);
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56 | sync_active_FTU_list_0 : out std_logic_vector(9 downto 0);
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57 | sync_active_FTU_list_1 : out std_logic_vector(9 downto 0);
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58 | sync_active_FTU_list_2 : out std_logic_vector(9 downto 0);
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59 | sync_active_FTU_list_3 : out std_logic_vector(9 downto 0));
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60 | end interface_sync_250MHz;
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61 |
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62 | -- Architecture Definition
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63 | architecture RTL of interface_sync_250MHz is
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64 |
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65 | type t_reg is record
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66 | -- Internal register declaration
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67 | -- Ouput register declaration
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68 | config_done : std_logic_vector(1 downto 0);
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69 | sync_0_start_run : std_logic;
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70 | sync_1_start_run : std_logic;
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71 | sync_0_stop_run : std_logic;
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72 | sync_1_stop_run : std_logic;
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73 | sync_0_new_config : std_logic;
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74 | sync_1_new_config : std_logic;
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75 | sync_0_general_settings : std_logic_vector(7 downto 0);
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76 | sync_1_general_settings : std_logic_vector(7 downto 0);
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77 | sync_0_LP_and_PED_freq : std_logic_vector(9 downto 0);
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78 | sync_1_LP_and_PED_freq : std_logic_vector(9 downto 0);
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79 | sync_0_LP1_LP2_PED_ratio : std_logic_vector(14 downto 0);
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80 | sync_1_LP1_LP2_PED_ratio : std_logic_vector(14 downto 0);
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81 | sync_0_maj_coinc_n_phys : std_logic_vector(5 downto 0);
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82 | sync_1_maj_coinc_n_phys : std_logic_vector(5 downto 0);
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83 | sync_0_maj_coinc_n_calib : std_logic_vector(5 downto 0);
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84 | sync_1_maj_coinc_n_calib : std_logic_vector(5 downto 0);
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85 | sync_0_trigger_delay : std_logic_vector(9 downto 0);
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86 | sync_1_trigger_delay : std_logic_vector(9 downto 0);
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87 | sync_0_TIM_delay : std_logic_vector(9 downto 0);
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88 | sync_1_TIM_delay : std_logic_vector(9 downto 0);
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89 | sync_0_dead_time : std_logic_vector(15 downto 0);
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90 | sync_1_dead_time : std_logic_vector(15 downto 0);
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91 | sync_0_coinc_window_phys : std_logic_vector(3 downto 0);
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92 | sync_1_coinc_window_phys : std_logic_vector(3 downto 0);
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93 | sync_0_coinc_window_calib : std_logic_vector(3 downto 0);
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94 | sync_1_coinc_window_calib : std_logic_vector(3 downto 0);
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95 | sync_0_active_FTU_list_0 : std_logic_vector(9 downto 0);
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96 | sync_1_active_FTU_list_0 : std_logic_vector(9 downto 0);
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97 | sync_0_active_FTU_list_1 : std_logic_vector(9 downto 0);
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98 | sync_1_active_FTU_list_1 : std_logic_vector(9 downto 0);
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99 | sync_0_active_FTU_list_2 : std_logic_vector(9 downto 0);
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100 | sync_1_active_FTU_list_2 : std_logic_vector(9 downto 0);
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101 | sync_0_active_FTU_list_3 : std_logic_vector(9 downto 0);
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102 | sync_1_active_FTU_list_3 : std_logic_vector(9 downto 0);
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103 | end record;
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104 |
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105 | signal i_next_reg : t_reg := (config_done => (others => '0'),
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106 | sync_0_start_run => '0',
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107 | sync_1_start_run => '0',
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108 | sync_0_stop_run => '0',
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109 | sync_1_stop_run => '0',
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110 | sync_0_new_config => '0',
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111 | sync_1_new_config => '0',
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112 | sync_0_general_settings => (others => '0'),
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113 | sync_1_general_settings => (others => '0'),
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114 | sync_0_LP_and_PED_freq => (others => '0'),
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115 | sync_1_LP_and_PED_freq => (others => '0'),
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116 | sync_0_LP1_LP2_PED_ratio => (others => '0'),
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117 | sync_1_LP1_LP2_PED_ratio => (others => '0'),
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118 | sync_0_maj_coinc_n_phys => (others => '1'),
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119 | sync_1_maj_coinc_n_phys => (others => '1'),
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120 | sync_0_maj_coinc_n_calib => (others => '1'),
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121 | sync_1_maj_coinc_n_calib => (others => '1'),
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122 | sync_0_trigger_delay => (others => '0'),
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123 | sync_1_trigger_delay => (others => '0'),
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124 | sync_0_TIM_delay => (others => '0'),
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125 | sync_1_TIM_delay => (others => '0'),
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126 | sync_0_dead_time => (others => '0'),
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127 | sync_1_dead_time => (others => '0'),
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128 | sync_0_coinc_window_phys => (others => '0'),
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129 | sync_1_coinc_window_phys => (others => '0'),
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130 | sync_0_coinc_window_calib => (others => '0'),
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131 | sync_1_coinc_window_calib => (others => '0'),
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132 | sync_0_active_FTU_list_0 => (others => '0'),
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133 | sync_1_active_FTU_list_0 => (others => '0'),
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134 | sync_0_active_FTU_list_1 => (others => '0'),
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135 | sync_1_active_FTU_list_1 => (others => '0'),
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136 | sync_0_active_FTU_list_2 => (others => '0'),
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137 | sync_1_active_FTU_list_2 => (others => '0'),
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138 | sync_0_active_FTU_list_3 => (others => '0'),
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139 | sync_1_active_FTU_list_3 => (others => '0'));
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140 | signal i_reg : t_reg := (config_done => (others => '0'),
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141 | sync_0_start_run => '0',
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142 | sync_1_start_run => '0',
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143 | sync_0_stop_run => '0',
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144 | sync_1_stop_run => '0',
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145 | sync_0_new_config => '0',
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146 | sync_1_new_config => '0',
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147 | sync_0_general_settings => (others => '0'),
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148 | sync_1_general_settings => (others => '0'),
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149 | sync_0_LP_and_PED_freq => (others => '0'),
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150 | sync_1_LP_and_PED_freq => (others => '0'),
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151 | sync_0_LP1_LP2_PED_ratio => (others => '0'),
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152 | sync_1_LP1_LP2_PED_ratio => (others => '0'),
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153 | sync_0_maj_coinc_n_phys => (others => '1'),
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154 | sync_1_maj_coinc_n_phys => (others => '1'),
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155 | sync_0_maj_coinc_n_calib => (others => '1'),
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156 | sync_1_maj_coinc_n_calib => (others => '1'),
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157 | sync_0_trigger_delay => (others => '0'),
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158 | sync_1_trigger_delay => (others => '0'),
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159 | sync_0_TIM_delay => (others => '0'),
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160 | sync_1_TIM_delay => (others => '0'),
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161 | sync_0_dead_time => (others => '0'),
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162 | sync_1_dead_time => (others => '0'),
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163 | sync_0_coinc_window_phys => (others => '0'),
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164 | sync_1_coinc_window_phys => (others => '0'),
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165 | sync_0_coinc_window_calib => (others => '0'),
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166 | sync_1_coinc_window_calib => (others => '0'),
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167 | sync_0_active_FTU_list_0 => (others => '0'),
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168 | sync_1_active_FTU_list_0 => (others => '0'),
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169 | sync_0_active_FTU_list_1 => (others => '0'),
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170 | sync_1_active_FTU_list_1 => (others => '0'),
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171 | sync_0_active_FTU_list_2 => (others => '0'),
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172 | sync_1_active_FTU_list_2 => (others => '0'),
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173 | sync_0_active_FTU_list_3 => (others => '0'),
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174 | sync_1_active_FTU_list_3 => (others => '0'));
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175 |
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176 | begin
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177 |
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178 | -- Component instantiation
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179 |
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180 | -- Combinatorial logic
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181 | process(start_run, stop_run, new_config, general_settings, LP_and_PED_freq,
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182 | LP1_LP2_PED_ratio, maj_coinc_n_phys, maj_coinc_n_calib, trigger_delay,
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183 | TIM_delay, dead_time, coinc_window_phys, coinc_window_calib, active_FTU_list_0,
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184 | active_FTU_list_1, active_FTU_list_2, active_FTU_list_3, i_reg)
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185 | variable v_reg : t_reg := (config_done => (others => '0'),
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186 | sync_0_start_run => '0',
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187 | sync_1_start_run => '0',
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188 | sync_0_stop_run => '0',
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189 | sync_1_stop_run => '0',
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190 | sync_0_new_config => '0',
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191 | sync_1_new_config => '0',
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192 | sync_0_general_settings => (others => '0'),
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193 | sync_1_general_settings => (others => '0'),
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194 | sync_0_LP_and_PED_freq => (others => '0'),
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195 | sync_1_LP_and_PED_freq => (others => '0'),
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196 | sync_0_LP1_LP2_PED_ratio => (others => '0'),
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197 | sync_1_LP1_LP2_PED_ratio => (others => '0'),
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198 | sync_0_maj_coinc_n_phys => (others => '1'),
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199 | sync_1_maj_coinc_n_phys => (others => '1'),
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200 | sync_0_maj_coinc_n_calib => (others => '1'),
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201 | sync_1_maj_coinc_n_calib => (others => '1'),
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202 | sync_0_trigger_delay => (others => '0'),
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203 | sync_1_trigger_delay => (others => '0'),
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204 | sync_0_TIM_delay => (others => '0'),
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205 | sync_1_TIM_delay => (others => '0'),
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206 | sync_0_dead_time => (others => '0'),
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207 | sync_1_dead_time => (others => '0'),
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208 | sync_0_coinc_window_phys => (others => '0'),
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209 | sync_1_coinc_window_phys => (others => '0'),
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210 | sync_0_coinc_window_calib => (others => '0'),
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211 | sync_1_coinc_window_calib => (others => '0'),
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212 | sync_0_active_FTU_list_0 => (others => '0'),
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213 | sync_1_active_FTU_list_0 => (others => '0'),
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214 | sync_0_active_FTU_list_1 => (others => '0'),
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215 | sync_1_active_FTU_list_1 => (others => '0'),
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216 | sync_0_active_FTU_list_2 => (others => '0'),
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217 | sync_1_active_FTU_list_2 => (others => '0'),
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218 | sync_0_active_FTU_list_3 => (others => '0'),
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219 | sync_1_active_FTU_list_3 => (others => '0'));
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220 | begin
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221 | v_reg := i_reg;
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222 | --===================================================================================
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223 |
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224 | --===================================================================================
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225 | -- Double synchronization of incoming signals
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226 | --===================================================================================
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227 | -- Double synchonize command signals
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228 | v_reg.sync_0_start_run := start_run;
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229 | v_reg.sync_1_start_run := i_reg.sync_0_start_run;
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230 | v_reg.sync_0_stop_run := stop_run;
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231 | v_reg.sync_1_stop_run := i_reg.sync_0_stop_run;
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232 | v_reg.sync_0_new_config := new_config;
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233 | v_reg.sync_1_new_config := i_reg.sync_0_new_config;
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234 |
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235 | v_reg.config_done(0) := '0';
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236 | v_reg.config_done(1) := i_reg.config_done(0);
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237 |
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238 | -- If new configuration is received, register settings
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239 | if i_reg.sync_1_new_config = '1' then
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240 | v_reg.config_done(0) := '1';
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241 | v_reg.sync_0_general_settings := general_settings(7 downto 0);
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242 | v_reg.sync_0_LP_and_PED_freq := LP_and_PED_freq(9 downto 0);
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243 | v_reg.sync_0_LP1_LP2_PED_ratio := LP1_LP2_PED_ratio(14 downto 0);
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244 | v_reg.sync_0_maj_coinc_n_phys := maj_coinc_n_phys(5 downto 0);
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245 | v_reg.sync_0_maj_coinc_n_calib := maj_coinc_n_calib(5 downto 0);
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246 | v_reg.sync_0_trigger_delay := trigger_delay(9 downto 0);
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247 | v_reg.sync_0_TIM_delay := TIM_delay(9 downto 0);
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248 | v_reg.sync_0_dead_time := dead_time(15 downto 0);
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249 | v_reg.sync_0_coinc_window_phys := coinc_window_phys(3 downto 0);
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250 | v_reg.sync_0_coinc_window_calib := coinc_window_calib(3 downto 0);
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251 | v_reg.sync_0_active_FTU_list_0 := active_FTU_list_0(9 downto 0);
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252 | v_reg.sync_0_active_FTU_list_1 := active_FTU_list_1(9 downto 0);
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253 | v_reg.sync_0_active_FTU_list_2 := active_FTU_list_2(9 downto 0);
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254 | v_reg.sync_0_active_FTU_list_3 := active_FTU_list_3(9 downto 0);
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255 | end if;
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256 | v_reg.sync_1_general_settings := i_reg.sync_0_general_settings;
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257 | v_reg.sync_1_LP_and_PED_freq := i_reg.sync_0_LP_and_PED_freq;
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258 | v_reg.sync_1_LP1_LP2_PED_ratio := i_reg.sync_0_LP1_LP2_PED_ratio;
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259 | v_reg.sync_1_maj_coinc_n_phys := i_reg.sync_0_maj_coinc_n_phys;
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260 | v_reg.sync_1_maj_coinc_n_calib := i_reg.sync_0_maj_coinc_n_calib;
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261 | v_reg.sync_1_trigger_delay := i_reg.sync_0_trigger_delay;
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262 | v_reg.sync_1_TIM_delay := i_reg.sync_0_TIM_delay;
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263 | v_reg.sync_1_dead_time := i_reg.sync_0_dead_time;
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264 | v_reg.sync_1_coinc_window_phys := i_reg.sync_0_coinc_window_phys;
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265 | v_reg.sync_1_coinc_window_calib := i_reg.sync_0_coinc_window_calib;
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266 | v_reg.sync_1_active_FTU_list_0 := i_reg.sync_0_active_FTU_list_0;
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267 | v_reg.sync_1_active_FTU_list_1 := i_reg.sync_0_active_FTU_list_1;
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268 | v_reg.sync_1_active_FTU_list_2 := i_reg.sync_0_active_FTU_list_2;
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269 | v_reg.sync_1_active_FTU_list_3 := i_reg.sync_0_active_FTU_list_3;
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270 | --===================================================================================
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271 |
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272 | --===================================================================================
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273 | -- Drive register input
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274 | i_next_reg <= v_reg;
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275 |
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276 | --===================================================================================
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277 | -- Output assignation
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278 | config_done <= i_reg.config_done(1);
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279 | sync_start_run <= i_reg.sync_1_start_run;
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280 | sync_stop_run <= i_reg.sync_1_stop_run;
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281 | sync_general_settings <= i_reg.sync_1_general_settings;
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282 | sync_LP_and_PED_freq <= i_reg.sync_1_LP_and_PED_freq;
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283 | sync_LP1_LP2_PED_ratio <= i_reg.sync_1_LP1_LP2_PED_ratio;
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284 | sync_maj_coinc_n_phys <= i_reg.sync_1_maj_coinc_n_phys;
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285 | sync_maj_coinc_n_calib <= i_reg.sync_1_maj_coinc_n_calib;
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286 | sync_trigger_delay <= i_reg.sync_1_trigger_delay;
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287 | sync_TIM_delay <= i_reg.sync_1_TIM_delay;
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288 | sync_dead_time <= i_reg.sync_1_dead_time;
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289 | sync_coinc_window_phys <= i_reg.sync_1_coinc_window_phys;
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290 | sync_coinc_window_calib <= i_reg.sync_1_coinc_window_calib;
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291 | sync_active_FTU_list_0 <= i_reg.sync_1_active_FTU_list_0;
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292 | sync_active_FTU_list_1 <= i_reg.sync_1_active_FTU_list_1;
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293 | sync_active_FTU_list_2 <= i_reg.sync_1_active_FTU_list_2;
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294 | sync_active_FTU_list_3 <= i_reg.sync_1_active_FTU_list_3;
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295 | --===================================================================================
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296 | end process;
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297 |
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298 | -- Sequential logic
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299 | process(clk_250MHz)
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300 | begin
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301 | if rising_edge(clk_250MHz) then
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302 | i_reg <= i_next_reg;
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303 | end if;
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304 | end process;
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305 |
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306 | end RTL; |
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