i already installation quartus 2, 7.2 full version . when i use it, i got a strange problem makes me crazy. the problem is
suppose i use quartus to implement multiplier which i write VHDL codes, as following
------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_signed.all;
use ieee.std_logic_arith.all;
------------------------------------------------------
entity multipler1 is
generic (
N : natural := 8; -- output signal width
W : natural := 8 -- coefficients width
);
port( x : in std_logic_vector(N-1 downto 0);
c : in std_logic_vector(N-1 downto 0);
y : out std_logic_vector(N+W-1 downto 0)
);
end multipler1;
----------------------------------------------------
architecture behavior of multipler1 is
begin
y <= x * c;
end behavior;
---------------------------------------------------
then the analysis and synthesis is successful
next, i try to simulate the output waveform.
i get problem here. i use the nodes finder to insert the nodes
the all pins are appearing on node finder. i click ok
there is warning shown:
Warning: Creation of Node or Bus "c[0]" failed. Duplicated nodes are not inserted. Node or bus name "c[0]" already exists.
i really need yours help, i donnot know that is because of software problem or anything else .
thank you a lot
