发布时间 : 星期一 文章交织器解交织器设计更新完毕开始阅读73975079de80d4d8d05a4f46
交织器读写地址VHDL代码：
library ieee;
use ieee.std_logic_1164.all; use ieee.std_logic_unsigned.all; entity AddrGen is
port(clk:in std_logic;
AddrR:out integer range 0 to 2047; AddrW:out integer range 0 to 2047 ); end AddrGen;
architecture behav of AddrGen is
signal count:integer range 0 to 11:=0; begin
C:process(clk)
variable c:integer range 0 to 11:=0; begin
if(rising_edge(clk)) then c:=(c+1)mod 12; end if; count<=c; end process;
addr:process(clk)
constant a0:integer:=0; constant a1:integer:=1; constant c1:integer:=18; constant a2:integer:=19; constant c2:integer:=53; constant a3:integer:=54; constant c3:integer:=105; constant a4:integer:=106; constant c4:integer:=174; constant a5:integer:=175; constant c5:integer:=260; constant a6:integer:=261; constant c6:integer:=363; constant a7:integer:=364; constant c7:integer:=483; constant a8:integer:=484; constant c8:integer:=620; constant a9:integer:=621; constant c9:integer:=774; constant a10:integer:=775; constant c10:integer:=945; constant a11:integer:=946; constant c11:integer:=1133;
variable b1:integer range 0 to 17:=0; variable b2:integer range 0 to 34:=0; variable b3:integer range 0 to 51:=0; variable b4:integer range 0 to 68:=0; variable b5:integer range 0 to 85:=0; variable b6:integer range 0 to 102:=0; variable b7:integer range 0 to 119:=0; variable b8:integer range 0 to 136:=0; variable b9:integer range 0 to 153:=0; variable b10:integer range 0 to 170:=0; variable b11:integer range 0 to 187:=0;
begin
if(rising_edge(clk)) then case count is
when 0=> AddrW<=a0;AddrR<=a0; when 1=>
b1:=(b1+1)mod 18; if(b1=0) then AddrW<=c1; AddrR<=a1; else
AddrR<=a1+b1; AddrW<=a1+b1-1; end if; when 2=>
b2:=(b2+1)mod 35; if(b2=0) then AddrW<=c2; AddrR<=a2; else
AddrR<=a2+b2; AddrW<=a2+b2-1; end if; when 3=>
b3:=(b3+1)mod 52; if(b3=0) then AddrW<=c3; AddrR<=a3; else
AddrR<=a3+b3; AddrW<=a3+b3-1; end if; when 4=>
b4:=(b4+1)mod 69; if(b4=0) then AddrW<=c4; AddrR<=a4; else
AddrR<=a4+b4; AddrW<=a4+b4-1; end if; when 5=>
b5:=(b5+1)mod 86; if(b5=0) then AddrW<=c5;
AddrR<=a5; else
AddrR<=a5+b5; AddrW<=a5+b5-1; end if; when 6=>
b6:=(b6+1)mod 103; if(b6=0) then AddrW<=c6; AddrR<=a6; else
AddrR<=a6+b6; AddrW<=a6+b6-1; end if; when 7=>
b7:=(b7+1)mod 120; if(b7=0) then AddrW<=c7; AddrR<=a7; else
AddrR<=a7+b7; AddrW<=a7+b7-1; end if; when 8=>
b8:=(b8+1)mod 137; if(b8=0) then AddrW<=c8; AddrR<=a8; else
AddrR<=a8+b8; AddrW<=a8+b8-1; end if; when 9=>
b9:=(b9+1)mod 154; if(b9=0) then AddrW<=c9; AddrR<=a9; else
AddrR<=a9+b9; AddrW<=a9+b9-1; end if; when 10=>
b10:=(b10+1)mod 171; if(b10=0) then