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Comment fait un convertisseur?

VHDL
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Question added by bassim habibes
Date Posted: 2015/09/12
Upvote (0) Views (15) Followers (4) Answers (4) Report Question
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Omar Faraji

il faut déclarer les entrées et les sorties de convertisseur, préciser le nombre de bits pour coder la valeur en binaire 

ramy hedhli
by ramy hedhli , Auditeur Consultant , Proway consulting

faut préciser le type de convertisseur !!! 

BIJU K
by BIJU K , System Architect , NXP SEMICONDUCTORS LTD INDIA

VERY HIGH SPEED HARDWARE DESCRIPTIONAL LANGUAGE

hamza dridi
by hamza dridi , IT manager , ansaldo energia

library ieee ;use ieee.std_logic_1164.all;use ieee.std_logic_unsigned.all;entity hex2bcd isport( hex_in :instd_logic_vector(7downto0); bcd_hun :outstd_logic_vector(3downto0); bcd_ten :outstd_logic_vector(3downto0); bcd_uni :outstd_logic_vector(3downto0));end hex2bcd ;architecture arc_hex2bcd of hex2bcd isbeginprocess( hex_in )variable hex_src :std_logic_vector(7downto0);variable bcd :std_logic_vector(11downto0);begin hex_src := hex_in ; bcd :=(others=>'0');for i in0to7loop bcd := bcd(11downto1)& hex_src(7);-- shift bcd + 1 new entry hex_src := hex_src(7downto1)&'0';-- shift src + pad with 0if bcd(3downto0)>"0100"then bcd(3downto0):= bcd(3downto0)+"0011";endif;if bcd(7downto4)>"0100"then bcd(7downto4):= bcd(7downto4)+"0011";endif;if bcd(11downto8)>"0100"then bcd(11downto8):= bcd(11downto8)+"0011";endif;endloop; bcd_hun <= bcd(11downto8); bcd_ten <= bcd(7downto4); bcd_uni <= bcd(3downto0);endprocess;end arc_hex2bcd ;

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