help for simulating VHDL CODE for RFID...............

[abhijeet.kumar]

HEY guies help me ...please remove errore from this code...........for RFID READER

LIBRARY ieee;
USE ieee.std_logic_1164.ALL;
USE ieee.numeric_std.ALL;
USE ieee.std_logic_arith.ALL;

USE ieee.std_logic_unsigned.ALL;

ENTITY RFID2 IS
PORT (
SIGNAL data : IN std_logic_vector(7 DOWNTO 0);
SIGNAL address : INOUT std_logic_vector(4 DOWNTO 0);
SIGNAL we, inclock, outclock : IN std_logic;
SIGNAL q,q1 : INOUT std_logic_vector(7 DOWNTO 0);
SIGNAL compout: out std_logic);

END RFID2;

ARCHITECTURE ABHI OF RFID2 IS

TYPE mem_type IS ARRAY ( 31 DOWNTO 0) OF std_logic_vector (7 DOWNTO 0);
SIGNAL mem : mem_type;
--SIGNAL address_int : unsigned(4 DOWNTO 0);--initial address i.e. 00000

BEGIN
PROCESS (inclock,outclock, we, address)
--address_int:="00000";
VARIABLE add : unsigned(4 downto 0);--:= (others =>'0');--from address 0001
BEGIN -- PROCESS
IF (inclock = '1' AND inclock'event) THEN
--address_int <= unsigned(address);
IF we = '1' THEN
mem(To_integer(unsigned(address))) <= data;
END IF;
END IF;
--FOR i IN 0 to 31 LOOP

IF (outclock = '1' AND outclock'event) THEN
--q <= mem(to_integer(address_int));
add:="00001";
if (add < 31)then
add:= add+1;
end if;
address<= STD_LOGIC_VECTOR(add);
q<= mem (conv_integer (00000));
q1<= mem(conv_integer (address));
--end IF;
--END IF;
if (q=q1 )then

compout<='1';

else
compout<='0';
end if;
end if;

END PROCESS;

END ABHI;
Like · · Unfollow Post · 4 hours ago

Abhijeet Singh IT IS SYNTHESISE easily but cnt SIMULATE....PLEASE HELP........

The ERROR Report is.............
.ERROR:HDLCompiler:607 - "C:/Users/dell/Desktop/vhdl/RFID2/Rrfid2.vhd" Line 32: Multiple declarations of unsigned included via multiple use clauses; none are made directly visible
ERROR:HDLCompiler:607 - "C:/...

 

[FvM]

The error message is pretty clear, I think. You are using incompatible libraries, you have to decide to use either standard ieee.numeric_std or legacy ieee.std_logic_arith optionally with ieee.std_logic_unsigned.

 

[abhijeet.kumar]

The error message is pretty clear, I think. You are using incompatible libraries, you have to decide to use either standard ieee.numeric_std or legacy ieee.std_logic_arith optionally with ieee.std_logic_unsigned.

thanx alot sir,,,,,,,,,,,,i have one more problem................how can i store some data at any address using this program./?

- - - Updated - - -

The error message is pretty clear, I think. You are using incompatible libraries, you have to decide to use either standard ieee.numeric_std or legacy ieee.std_logic_arith optionally with ieee.std_logic_unsigned.

thanx alot sir,,,,,,,,,,,,i have one more problem................how can i store some data at any address using this program./?