1 | ----------------------------------------------------------------------------------
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2 |
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3 | -- Company:
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4 |
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5 | -- Engineer:
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6 |
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7 | --
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8 |
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9 | -- Create Date: 19:59:46 10/24/2009
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10 |
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11 | -- Design Name:
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12 |
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13 | -- Module Name: tas - Behavioral
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14 |
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15 | -- Project Name:
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16 |
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17 | -- Target Devices:
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18 |
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19 | -- Tool versions:
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20 |
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21 | -- Description:
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22 |
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23 | --
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24 |
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25 | -- Dependencies:
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26 |
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27 | --
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28 |
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29 | -- Revision:
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30 |
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31 | -- Revision 0.01 - File Created
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32 |
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33 | -- Additional Comments:
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34 |
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35 | --
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36 |
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37 | ----------------------------------------------------------------------------------
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38 |
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39 | library IEEE;
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40 |
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41 | use IEEE.STD_LOGIC_1164.ALL;
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42 |
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43 | use IEEE.STD_LOGIC_ARITH.ALL;
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44 |
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45 | use IEEE.STD_LOGIC_UNSIGNED.ALL;
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46 |
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47 |
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48 |
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49 | ---- Uncomment the following library declaration if instantiating
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50 |
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51 | ---- any Xilinx primitives in this code.
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52 |
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53 | --library UNISIM;
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54 |
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55 | --use UNISIM.VComponents.all;
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56 |
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57 |
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58 |
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59 | entity tas is
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60 |
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61 | Port ( CLK : in STD_LOGIC;
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62 |
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63 | RESET : in STD_LOGIC;
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64 |
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65 | bcd0 : in STD_LOGIC_VECTOR (3 downto 0);
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66 |
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67 | bcd1 : in STD_LOGIC_VECTOR (3 downto 0);
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68 |
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69 | bcd2 : in STD_LOGIC_VECTOR (3 downto 0);
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70 |
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71 | bcd3 : in STD_LOGIC_VECTOR (3 downto 0);
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72 |
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73 | bcd4 : in STD_LOGIC_VECTOR (3 downto 0);
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74 |
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75 | bcd5 : in STD_LOGIC_VECTOR (3 downto 0);
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76 | bcd6 : in STD_LOGIC_VECTOR (3 downto 0);
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77 | operator : in STD_LOGIC_VECTOR (3 downto 0);
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78 |
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79 | DIG0_SEG : out STD_LOGIC_VECTOR (7 downto 0);
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80 |
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81 | DIG1_SEG : out STD_LOGIC_VECTOR (7 downto 0);
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82 |
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83 | DIG2_SEG : out STD_LOGIC_VECTOR (7 downto 0);
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84 |
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85 | DIG3_SEG : out STD_LOGIC_VECTOR (7 downto 0);
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86 |
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87 | DIG4_SEG : out STD_LOGIC_VECTOR (7 downto 0);
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88 |
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89 | DIG5_SEG : out STD_LOGIC_VECTOR (7 downto 0));
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90 |
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91 | end tas;
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92 |
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93 |
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94 |
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95 | architecture Behavioral of tas is
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96 |
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97 |
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98 |
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99 | begin
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100 | process(operator, CLK)
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101 |
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102 | if (operator /= "1111")
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103 | then
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104 |
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105 |
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106 |
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107 | DIG0_SEG(7 downto 0) <= "00000010";
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108 |
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109 |
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110 |
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111 | DIG1_SEG(7 downto 0) <= "00000010";
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112 |
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113 |
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114 |
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115 | DIG2_SEG(7 downto 0) <= "00000010";
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116 |
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117 |
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118 |
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119 | DIG3_SEG(7 downto 0) <= "00000010";
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120 |
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121 |
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122 |
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123 | DIG4_SEG(7 downto 0) <= "00000010";
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124 |
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125 |
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126 |
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127 | DIG5_SEG(7 downto 0) <= "00000010";
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128 |
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129 |
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130 | else
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131 |
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132 |
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133 |
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134 | process(bcd0, bcd1, bcd2, bcd3, bcd4, bcd5, bcd6, CLK) -- beginn BCD-Code auslesen und Zahl in DIG schreiben
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135 |
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136 | begin
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137 |
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138 |
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139 |
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140 | if (bcd6 <= "0000") then
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141 |
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142 |
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143 |
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144 | case bcd0 is
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145 |
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146 | when "0000" => DIG0_SEG(7 downto 0) <= "11111100";
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147 |
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148 | when "0001" => DIG0_SEG(7 downto 0) <= "01100000";
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149 |
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150 | when "0010" => DIG0_SEG(7 downto 0) <= "11011010";
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151 |
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152 | when "0011" => DIG0_SEG(7 downto 0) <= "11110010";
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153 |
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154 | when "0100" => DIG0_SEG(7 downto 0) <= "01100110";
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155 |
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156 | when "0101" => DIG0_SEG(7 downto 0) <= "10110110";
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157 |
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158 | when "0110" => DIG0_SEG(7 downto 0) <= "10111110";
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159 |
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160 | when "0111" => DIG0_SEG(7 downto 0) <= "11100000";
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161 |
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162 | when "1000" => DIG0_SEG(7 downto 0) <= "11111110";
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163 |
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164 | when "1001" => DIG0_SEG(7 downto 0) <= "11110110";
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165 |
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166 | when others => DIG0_SEG(7 downto 0) <= "XXXXXXXX";
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167 |
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168 | end case;
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169 |
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170 |
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171 |
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172 | case bcd1 is
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173 |
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174 | when "0000" => DIG1_SEG(7 downto 0) <= "11111100";
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175 |
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176 | when "0001" => DIG1_SEG(7 downto 0) <= "01100000";
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177 |
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178 | when "0010" => DIG1_SEG(7 downto 0) <= "11011010";
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179 |
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180 | when "0011" => DIG1_SEG(7 downto 0) <= "11110010";
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181 |
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182 | when "0100" => DIG1_SEG(7 downto 0) <= "01100110";
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183 |
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184 | when "0101" => DIG1_SEG(7 downto 0) <= "10110110";
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185 |
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186 | when "0110" => DIG1_SEG(7 downto 0) <= "10111110";
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187 |
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188 | when "0111" => DIG1_SEG(7 downto 0) <= "11100000";
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189 |
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190 | when "1000" => DIG1_SEG(7 downto 0) <= "11111110";
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191 |
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192 | when "1001" => DIG1_SEG(7 downto 0) <= "11110110";
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193 |
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194 | when others => DIG1_SEG(7 downto 0) <= "XXXXXXXX";
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195 |
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196 | end case;
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197 |
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198 |
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199 |
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200 | case bcd2 is
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201 |
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202 | when "0000" => DIG2_SEG(7 downto 0) <= "11111100";
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203 |
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204 | when "0001" => DIG2_SEG(7 downto 0) <= "01100000";
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205 |
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206 | when "0010" => DIG2_SEG(7 downto 0) <= "11011010";
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207 |
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208 | when "0011" => DIG2_SEG(7 downto 0) <= "11110010";
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209 |
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210 | when "0100" => DIG2_SEG(7 downto 0) <= "01100110";
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211 |
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212 | when "0101" => DIG2_SEG(7 downto 0) <= "10110110";
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213 |
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214 | when "0110" => DIG2_SEG(7 downto 0) <= "10111110";
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215 |
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216 | when "0111" => DIG2_SEG(7 downto 0) <= "11100000";
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217 |
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218 | when "1000" => DIG2_SEG(7 downto 0) <= "11111110";
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219 |
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220 | when "1001" => DIG2_SEG(7 downto 0) <= "11110110";
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221 |
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222 | when others => DIG2_SEG(7 downto 0) <= "XXXXXXXX";
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223 |
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224 | end case;
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225 |
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226 |
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227 |
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228 | case bcd3 is
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229 |
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230 | when "0000" => DIG3_SEG(7 downto 0) <= "11111100";
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231 |
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232 | when "0001" => DIG3_SEG(7 downto 0) <= "01100000";
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233 |
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234 | when "0010" => DIG3_SEG(7 downto 0) <= "11011010";
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235 |
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236 | when "0011" => DIG3_SEG(7 downto 0) <= "11110010";
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237 |
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238 | when "0100" => DIG3_SEG(7 downto 0) <= "01100110";
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239 |
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240 | when "0101" => DIG3_SEG(7 downto 0) <= "10110110";
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241 |
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242 | when "0110" => DIG3_SEG(7 downto 0) <= "10111110";
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243 |
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244 | when "0111" => DIG3_SEG(7 downto 0) <= "11100000";
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245 |
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246 | when "1000" => DIG3_SEG(7 downto 0) <= "11111110";
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247 |
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248 | when "1001" => DIG3_SEG(7 downto 0) <= "11110110";
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249 |
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250 | when others => DIG3_SEG(7 downto 0) <= "XXXXXXXX";
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251 |
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252 | end case;
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253 |
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254 |
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255 |
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256 | case bcd4 is
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257 |
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258 | when "0000" => DIG4_SEG(7 downto 0) <= "11111100";
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259 |
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260 | when "0001" => DIG4_SEG(7 downto 0) <= "01100000";
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261 |
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262 | when "0010" => DIG4_SEG(7 downto 0) <= "11011010";
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263 |
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264 | when "0011" => DIG4_SEG(7 downto 0) <= "11110010";
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265 |
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266 | when "0100" => DIG4_SEG(7 downto 0) <= "01100110";
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267 |
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268 | when "0101" => DIG4_SEG(7 downto 0) <= "10110110";
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269 |
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270 | when "0110" => DIG4_SEG(7 downto 0) <= "10111110";
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271 |
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272 | when "0111" => DIG4_SEG(7 downto 0) <= "11100000";
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273 |
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274 | when "1000" => DIG4_SEG(7 downto 0) <= "11111110";
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275 |
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276 | when "1001" => DIG4_SEG(7 downto 0) <= "11110110";
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277 |
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278 | when others => DIG4_SEG(7 downto 0) <= "XXXXXXXX";
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279 |
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280 | end case;
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281 |
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282 |
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283 |
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284 | case bcd5 is
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285 |
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286 | when "0000" => DIG5_SEG(7 downto 0) <= "11111100";
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287 |
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288 | when "0001" => DIG5_SEG(7 downto 0) <= "01100000";
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289 |
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290 | when "0010" => DIG5_SEG(7 downto 0) <= "11011010";
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291 |
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292 | when "0011" => DIG5_SEG(7 downto 0) <= "11110010";
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293 |
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294 | when "0100" => DIG5_SEG(7 downto 0) <= "01100110";
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295 |
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296 | when "0101" => DIG5_SEG(7 downto 0) <= "10110110";
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297 |
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298 | when "0110" => DIG5_SEG(7 downto 0) <= "10111110";
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299 |
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300 | when "0111" => DIG5_SEG(7 downto 0) <= "11100000";
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301 |
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302 | when "1000" => DIG5_SEG(7 downto 0) <= "11111110";
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303 |
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304 | when "1001" => DIG5_SEG(7 downto 0) <= "11110110";
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305 |
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306 | when others => DIG5_SEG(7 downto 0) <= "XXXXXXXX"; -- ende BCD-Code auslesen und Zahl in DIG0 schreiben
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307 |
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308 | end case;
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309 |
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310 |
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311 |
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312 |
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313 |
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314 | else
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315 |
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316 | DIG0_SEG(7 downto 0) <= "10011110";
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317 |
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318 | DIG1_SEG(7 downto 0) <= "11101110";
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319 |
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320 | DIG2_SEG(7 downto 0) <= "11101110";
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321 |
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322 | DIG3_SEG(7 downto 0) <= "11111100";
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323 |
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324 | DIG4_SEG(7 downto 0) <= "11101110";
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325 |
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326 | DIG5_SEG(7 downto 0) <= "00000000";
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327 |
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328 | end if;
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329 |
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330 |
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331 |
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332 |
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333 |
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334 | end process;
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335 |
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336 | end Behavioral;
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