【正文】 01111111100000000000。when 183 = qout = 00000011111111011111111000000000。when 181 = qout = 00000000111111110111111110000000。when 179 = qout = 01111111101111111101111111100000。when 177 = qout = 00011111111011111111011111111000。when 175 = qout = 00000111111110111111110111111110。When 173 = qout = 00000000000000000000000000111111。When 171 = qout = 00000000000000000000000011111100。when 169 = qout = 00000000000000000000001111110000。when 165 = qout = 00000000000000000000111111000000。when 163 = qout = 00000000000000000011111100000000。when 161 = qout = 00000000000000001111110000111111。when 159 = qout = 00000000000000111111000011111100。when 157 = qout = 00000000000011111100001111110000。 S10when 155 = qout = 00000000001111110000111111000000。When 153 = qout = 00000000111111000011111100000000。When 151 = qout = 00000011111100001111110000111111。When 149 = qout = 00001111110000111111000011111100。when 147 = qout = 00111111000011111100001111110000。when 145 = qout = 11111100001111110000111111000000。when 143 = qout = 01111000000000000000000000000000。when 141 = qout = 00011110000000000000000000000000。when 139 = qout = 11110111100000000000000000000000。When 137 = qout = 10111101111000000000000000000000。When 135 = qout = 00001111011110000000000000000000。When 133 = qout = 01111011110111100000000000000000。When 131 = qout = 00011110111101111000000000000000。when 129 = qout = 11110111101111011110000000000000。when 127 = qout = 00111101111011110111100000000000。when 125 = qout = 00001111011110111101111000000000。when 123 = qout = 01111011110111101111011110000000。 S8when 120 = qout = 00011110111101111011110111100000。When 118 = qout = 11110111101111011110111101111000。When 116 = qout = 00111101111011110111101111011110。When 114 = qout = 00000000000000000000000000001111。when 112 = qout = 00000000000000000000000000111100。when 110 = qout = 00000000000000000000000011110000。when 108 = qout = 00000000000000000000001111011110。when 106 = qout = 00000000000000000000111101111000。when 104 = qout = 00000000000000000011110111101111。when 102 = qout = 00000000000000001111011110111100。When 100 = qout = 00000000000000111101111011110000。When 98 = qout = 00000000000001111011110111101111。when 96 = qout = 00000000000111101111011110111100。when 94 = qout = 00000000011110111101111011110000。when 92 = qout = 00000001111000000000000111100000。when 90 = qout = 00000111101111011110111101111000。when 88 = qout = 00011110111101111011110111101111。 S6when 86 = qout = 01111011110111101111011110111100。when 84 = qout = 01111000000000000000000000000000。When 82 = qout = 01010100000000000000000000000000。when 80 = qout = 01010101000000000000000000000000。when 78 = qout = 01010101010100000000000000000000。when 76 = qout = 01010101010101010000000000000010。when 74 = qout = 01010101010101010101000000000000。when 72 = qout = 01010101010101010101010100000000。when 70 = qout = 01010101010101010101010101010000。when 68 = qout = 01010101010101010101010101010101。when 66 = qout = 11111111000000000000000000000000。when 64 = qout = 01111111111111111111111111111111。when 62 = qout = 00011111111111111111111111111111。when 60 = qout = 00000111111111111111111111111111。when 58 = qout = 00000001111111111111111111111111。when 56 = qout = 00000000011111111111111111111111。when 54 = qout = 00000000000111111111111111111111。 S4when 52 = qout = 00000000000001111111111111111111。when 50 = qout = 00000000000000011111111111111111。when 48 = qout = 00000000000000000111111111111111。when 46 = qout = 00000000000000000001111111111111。when 44 = qout = 00000000000000000000011111111111。when 42 = qout = 00000000000000000000000111111111。when 40 = qout = 00000000000000000000000001111111。when 38 = qout = 00000000000000000000000000011111。When 36 = qout = 00000000000000000000000000000111。 when 34 = qout = 00000000000000000000000000000001。When 32 = qout = 11111111111111110000000000000000。when 30 = qout = 11111111111111000000000000000000。when 28 = qout = 11111111111100000000000000000000。when 26 = qout = 11111111110000000000000000000000。when 24 = qout = 11111111000000000000000000000000。when 22 = qout = 11111100000000000000000000000000。when 20 = qout = 11110000000000000000000000000000。 S2when 18 = qout = 11000000000000000000000000000000。When 16 = qout = 11111111111111111111111111111111。When 14 = qout = 11111111111111111111111000000000。When 12 = qout = 11111111111111100000000000000000。when 10 = qout = 11111110000000000000000000000000。when 8 = qout = 11111111111111111111111111111111。when 6 = qout = 00000000111111111111111111111111。when 4 = qout = 00000000000000001111111111111111。when 2 = qout = 00000000000000000000000011111111。architecture one of bmfsq isbeginprocess(dout)begincase dout isWhen 0 = qout = 00000000000000000000000000000000。qout : out std_logic_vector(31 downto 0))。use 。該模塊 VHDL 程序如下library ieee。 編碼電路根據(jù)花型要求按頻率輸出32位狀態(tài)編碼信號, 以控制彩燈按規(guī)律亮滅。 圖4. 地址碼產(chǎn)生器模塊器件圖 顯示控制電路設(shè)計 顯示控制電路的模塊框圖如圖所示，輸入信號CLK和CLR的定義與時序控制電路一樣，輸入信號led[31...0]能夠循環(huán)輸出32路彩燈16種不同狀態(tài)的花型。dout = count。end if。elsechose_key= 39。 then chose_key= 39。if count1 = 39。then count1 :=not count1。event and t = 39。P2:process( t ) 將t 信號進行二分頻，產(chǎn)生頻率選擇信號chose_key值variable count1 : std_logic。end if。 t = 39。139。 16 種花型運行一次共272 次elsif clkout39。 t = 39。thencount=0。beginP1: process(clkout,clr) 產(chǎn)生地址碼beginif clr=39。architecture one of dzmcsq issignal count: integer range 0 to 272。頻率選擇信號，送頻率產(chǎn)生器 dout : out integer range 0 to 272)。 頻率脈沖信號，由頻率產(chǎn)生器傳入 clr:in std_logic。entity dzmcsq is 地址碼產(chǎn)生器。use 。地址碼產(chǎn)生器產(chǎn)生的頻率控制信號chose_key輸入頻率發(fā)生器，用來控制