标题: 调试时提示 找不到lpm,怎么办?(ABOUT DDS) [打印本页]

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作者: hxxfff    时间: 2004-5-8 14:24     标题: 调试时提示 找不到lpm,怎么办?(ABOUT DDS)

library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_unsigned.all; use ieee.std_logic_arith.all; library lpm; use lpm.lpm_componets.all; entity ddsc is generic(freq_width:integer:=32; phase_width:integer:=12; adder_width:integer:=32; romad_width:integer:=10; rom_d_width:integer:=10); port(clk :in std_logic_vector(freq_width-1 downto 0); freqin:in std_logic_vector(phase_width-1 downto 0); phasein:in std_logic_vector(phase_width-1 downto 0); ddsoutut std_logic_vector(rom_d_width-1 downto 0)); end entity ddsc; architecture behave of ddsc is signal acc:std_logic_vector(adder_width-1 downto 0); signal phaseadd:std_logic_vector(phase_width-1 downto 0); signal romaddr:std_logic_vector(romad_width-1 downto 0); signal freqw:std_logic_vector(freq_width-1 downto 0); signal phasew:std_logic_vector(phase_width-1 downto 0); begin process(clk) begin if(clk'event and clk ='1')then freqw<=freqin; phasew<=phasein; acc<=acc+frqw; end if; end process; phaseadd<=acc(adder_windth-1 downto adder_width-phase_width)+phasew; romaddr<=phaseadd(phase_width-1 downto phase_width-romad_width); i_rom: lpm_rom generic map(lpmwidth=>rom_d_width,lpm_widthad=>romad_width, lpm_address_control=>"unregistered", lpm_outdata=>"sin_rom.mif") port map(outclock=>clk,address=>romaddr,q=>ddsout); end architecture behave;

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作者: green_pine    时间: 2004-5-8 14:24

library lpm;
use lpm.lpm_componets.all;
去掉

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