1 | ---------------------------------------------------------------------------------- |
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2 | -- Company: ETH Zurich, Institute for Particle Physics |
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3 | -- Engineer: Patrick Vogler |
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4 | -- |
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5 | -- Create Date: 14 February 2010 |
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6 | -- Design Name: |
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7 | -- Module Name: FTM Clock conditioner Interface |
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8 | -- Project Name: |
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9 | -- Target Devices: |
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10 | -- Tool versions: |
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11 | -- Description: Interface to the LMK03000 Clock conditioner |
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12 | -- |
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13 | -- Dependencies: |
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14 | -- |
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15 | -- Revision: |
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16 | -- Revision 0.01 - File Created |
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17 | -- Additional Comments: |
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18 | -- |
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19 | -- |
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20 | -- modifications: February 21 2011 by Patrick Vogler |
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21 | -- March 23 2011 by Patrick Vogler |
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22 | ---------------------------------------------------------------------------------- |
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23 | |
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24 | library IEEE; |
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25 | use IEEE.STD_LOGIC_1164.ALL; |
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26 | use IEEE.STD_LOGIC_ARITH.ALL; |
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27 | use IEEE.STD_LOGIC_UNSIGNED.ALL; |
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28 | |
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29 | ---- Uncomment the following library declaration if instantiating |
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30 | ---- any Xilinx primitives in this code. |
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31 | --library UNISIM; |
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32 | --use UNISIM.VComponents.all; |
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33 | |
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34 | library ftm_definitions; |
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35 | USE ftm_definitions.ftm_array_types.all; |
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36 | USE ftm_definitions.ftm_constants.all; |
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37 | |
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38 | |
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39 | |
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40 | entity Clock_cond_interface is |
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41 | port( |
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42 | |
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43 | |
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44 | -- Clock |
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45 | ------------------------------------------------------------------------------- |
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46 | clk : IN STD_LOGIC; -- 50 MHz system clock |
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47 | |
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48 | |
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49 | -- Clock conditioner LMK03000 |
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50 | ------------------------------------------------------------------------------- |
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51 | CLK_Clk_Cond : out STD_LOGIC; -- clock conditioner MICROWIRE interface clock |
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52 | LE_Clk_Cond : out STD_LOGIC; -- clock conditioner MICROWIRE interface latch enable |
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53 | DATA_Clk_Cond : out STD_LOGIC; -- clock conditioner MICROWIRE interface data |
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54 | |
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55 | SYNC_Clk_Cond : out STD_LOGIC; -- clock conditioner global clock synchronization |
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56 | LD_Clk_Cond : in STD_LOGIC; -- clock conditioner lock detect |
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57 | |
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58 | |
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59 | -- Time Marker |
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60 | ------------------------------------------------------------------------------- |
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61 | TIM_Sel : out STD_LOGIC; -- Time Marker selector |
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62 | -- 1 = time marker from Clock conditioner |
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63 | -- for DRS timing calibration |
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64 | -- |
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65 | -- 0 = time marker from FPGA for normal |
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66 | -- operation / physics run |
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67 | |
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68 | |
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69 | |
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70 | -- FPGA intern clock conditioner configuration data |
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71 | ------------------------------------------------------------------------------- |
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72 | cc_R0 : in std_logic_vector (31 downto 0) := (others => '0'); |
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73 | cc_R1 : in std_logic_vector (31 downto 0) := (others => '0'); |
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74 | cc_R8 : in std_logic_vector (31 downto 0) := (others => '0'); |
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75 | cc_R9 : in std_logic_vector (31 downto 0) := (others => '0'); |
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76 | cc_R11 : in std_logic_vector (31 downto 0) := (others => '0'); |
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77 | cc_R13 : in std_logic_vector (31 downto 0) := (others => '0'); |
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78 | cc_R14 : in std_logic_vector (31 downto 0) := (others => '0'); |
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79 | cc_R15 : in std_logic_vector (31 downto 0) := (others => '0'); |
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80 | |
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81 | |
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82 | |
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83 | |
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84 | -- FPGA intern control signals |
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85 | ------------------------------------------------------------------------------- |
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86 | start_config : in STD_LOGIC; -- load new configuration into the clock |
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87 | -- conditioner |
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88 | |
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89 | config_started : out STD_LOGIC; -- indicates that the new configuration |
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90 | -- is currently loaded into the clock conditioner |
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91 | |
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92 | config_done : out STD_LOGIC; -- indicates that the configuration has |
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93 | -- been loaded and the clock conditioners |
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94 | -- PLL is locked |
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95 | |
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96 | timemarker_select: in STD_LOGIC -- selects time marker source |
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97 | -- |
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98 | -- 1 = time marker from Clock conditioner |
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99 | -- for DRS timing calibration |
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100 | -- |
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101 | -- 0 = time marker from FPGA for normal |
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102 | -- operation / physics run |
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103 | |
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104 | ); |
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105 | end Clock_cond_interface; |
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106 | |
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107 | |
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108 | |
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109 | |
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110 | architecture Behavioral of Clock_cond_interface is |
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111 | |
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112 | |
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113 | component microwire_interface IS |
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114 | PORT( |
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115 | clk : IN std_logic; |
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116 | clk_uwire : OUT std_logic; --- IN or OUT ? |
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117 | data_uwire : OUT std_logic; |
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118 | le_uwire : OUT std_logic; |
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119 | clk_cond_array : IN clk_cond_array_type; |
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120 | config_start : IN std_logic; |
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121 | config_ready : OUT std_logic; |
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122 | config_started : OUT std_logic |
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123 | ); |
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124 | end component; |
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125 | |
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126 | |
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127 | |
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128 | |
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129 | signal clk_50M_sig : STD_LOGIC; -- system clock |
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130 | -- signal start_config_sig : STD_LOGIC; |
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131 | |
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132 | signal config_ready_sig : STD_LOGIC; |
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133 | signal clk_uwire_sig : STD_LOGIC; |
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134 | |
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135 | signal config_started_sig : STD_LOGIC; |
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136 | |
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137 | signal clk_cond_array_sig : clk_cond_array_type; |
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138 | |
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139 | signal cc_R0_sig : std_logic_vector (31 downto 0); |
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140 | signal cc_R1_sig : std_logic_vector (31 downto 0); |
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141 | |
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142 | signal cc_R2_sig : std_logic_vector (31 downto 0); |
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143 | signal cc_R3_sig : std_logic_vector (31 downto 0); |
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144 | signal cc_R4_sig : std_logic_vector (31 downto 0); |
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145 | signal cc_R5_sig : std_logic_vector (31 downto 0); |
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146 | signal cc_R6_sig : std_logic_vector (31 downto 0); |
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147 | signal cc_R7_sig : std_logic_vector (31 downto 0); |
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148 | |
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149 | signal cc_R8_sig : std_logic_vector (31 downto 0); |
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150 | signal cc_R9_sig : std_logic_vector (31 downto 0); |
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151 | signal cc_R11_sig : std_logic_vector (31 downto 0); |
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152 | signal cc_R13_sig : std_logic_vector (31 downto 0); |
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153 | signal cc_R14_sig : std_logic_vector (31 downto 0); |
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154 | signal cc_R15_sig : std_logic_vector (31 downto 0); |
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155 | |
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156 | |
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157 | |
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158 | |
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159 | begin |
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160 | |
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161 | Inst_microwire_interface:microwire_interface |
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162 | port map ( |
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163 | clk => clk_50M_sig, |
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164 | clk_uwire => clk_uwire_sig, |
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165 | data_uwire => DATA_Clk_Cond, |
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166 | le_uwire => LE_Clk_Cond, |
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167 | clk_cond_array => clk_cond_array_sig, |
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168 | config_start => start_config, |
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169 | |
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170 | -- config_start => start_config_sig, |
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171 | -- config_start <= start_config_sig, |
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172 | |
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173 | config_ready => config_ready_sig, |
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174 | config_started => config_started_sig |
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175 | ); |
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176 | |
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177 | |
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178 | |
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179 | config_done <= config_ready_sig; -- indicates that the configuration |
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180 | -- has been loaded |
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181 | |
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182 | |
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183 | |
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184 | -- config_done <= (config_ready_sig AND LD_Clk_Cond); -- indicates that the configuration |
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185 | -- has been loaded and |
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186 | -- the PLL is locked again |
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187 | |
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188 | |
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189 | |
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190 | TIM_Sel <= timemarker_select; |
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191 | CLK_Clk_Cond <= clk_uwire_sig; |
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192 | |
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193 | clk_50M_sig <= clk; |
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194 | -- start_config_sig <= start_config; |
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195 | |
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196 | -- start_config <= start_config_sig; |
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197 | |
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198 | |
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199 | config_started <= config_started_sig; |
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200 | |
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201 | cc_R0_sig <= cc_R0; |
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202 | cc_R1_sig <= cc_R1; |
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203 | cc_R2_sig <= cc_R2_const; |
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204 | cc_R3_sig <= cc_R3_const; |
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205 | cc_R4_sig <= cc_R4_const; |
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206 | cc_R5_sig <= cc_R5_const; |
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207 | cc_R6_sig <= cc_R6_const; |
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208 | cc_R7_sig <= cc_R7_const; |
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209 | cc_R8_sig <= cc_R8; |
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210 | cc_R9_sig <= cc_R9; |
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211 | cc_R11_sig <= cc_R11; |
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212 | cc_R13_sig <= cc_R13; |
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213 | cc_R14_sig <= cc_R14; |
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214 | cc_R15_sig <= cc_R15; |
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215 | |
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216 | clk_cond_array_sig(0) <= LMK03000_Reset; -- reset LKM03000 by setting |
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217 | -- bit 31 of register 0 |
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218 | clk_cond_array_sig(1) <= cc_R0_sig; |
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219 | clk_cond_array_sig(2) <= cc_R1_sig; |
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220 | |
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221 | clk_cond_array_sig(3) <= cc_R2_sig; -- unused channels |
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222 | clk_cond_array_sig(4) <= cc_R3_sig; |
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223 | clk_cond_array_sig(5) <= cc_R4_sig; |
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224 | clk_cond_array_sig(6) <= cc_R5_sig; |
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225 | clk_cond_array_sig(7) <= cc_R6_sig; |
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226 | clk_cond_array_sig(8) <= cc_R7_sig; |
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227 | |
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228 | clk_cond_array_sig(9) <= cc_R8_sig; |
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229 | clk_cond_array_sig(10) <= cc_R9_sig; |
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230 | clk_cond_array_sig(11) <= cc_R11_sig; |
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231 | clk_cond_array_sig(12) <= cc_R13_sig; |
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232 | clk_cond_array_sig(13) <= cc_R14_sig; |
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233 | clk_cond_array_sig(14) <= cc_R15_sig; |
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234 | |
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235 | |
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236 | end Behavioral; |
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237 | |
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238 | |
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