Port "out1" does not exist in primitive "AND2" of instance "STEP3"? (Code inside)

Altera_Forum · ‎05-16-2017

Hey guys,

So I am kind of confused by this error. A quick generic google search got me on another thread in this forum where someone else was facing this problem and when he changed his entity name it was working but I tried changing AND2 to AND3 and the issue persisted. There are no other entities with the name AND2 and I am not importing any files whatsoever. Here is the full code:

LIBRARY ieee;USE ieee.std_logic_1164.all;
ENTITY ALU1bit IS
    PORT (A,B,InvertA,InvertB,CarryIn :IN STD_LOGIC;
            Operation                         :IN STD_LOGIC_VECTOR(1 DOWNTO 0);
            Result,CarryOut                              :OUT STD_LOGIC);
END ALU1bit;
ARCHITECTURE ARCH1 OF ALU1bit IS
    COMPONENT XOR2 IS
        PORT(in1,in2 :IN STD_LOGIC;
              out1      :OUT STD_LOGIC);
    END COMPONENT;
    COMPONENT AND2 IS
        PORT(in1,in2 :IN STD_LOGIC;
              out1     :OUT STD_LOGIC);
    END COMPONENT;
    COMPONENT OR2 IS
        PORT(in1,in2 :IN STD_LOGIC;
              out1     :OUT STD_LOGIC);
    END COMPONENT;
    COMPONENT FULLADDER IS
        PORT(in1,in2,in3 :IN STD_LOGIC;
              out1,out2   :OUT STD_LOGIC);
    END COMPONENT;
    COMPONENT OPERATION_EVAL IS
        PORT(in1,in2,in3,in4 :IN STD_LOGIC;
              in5                    :IN STD_LOGIC_VECTOR(1 DOWNTO 0);
              out1                     :OUT STD_LOGIC);
    END COMPONENT;
    SIGNAL AInverted, BInverted, aANDb, aORb, aXORb, Sum : STD_LOGIC;
BEGIN
    STEP1 : XOR2 PORT MAP (A,InvertA,AInverted);
    STEP2 : XOR2 PORT MAP (B,InvertB,BInverted);
    STEP3 : AND2 PORT MAP (AInverted,BInverted,aANDb);
    STEP4 : OR2 PORT MAP (AInverted,BInverted,aORb);
    STEP5 : XOR2 PORT MAP (AInverted,BInverted,aXORb);
    STEP6 : FULLADDER PORT MAP (AInverted,BInverted,CarryIn,Sum,CarryOut);
    STEP7 : OPERATION_EVAL PORT MAP (aANDb,aORb,aXORb,Sum,Operation,Result);
END ARCH1;
LIBRARY ieee;
USE ieee.std_logic_1164.all;
ENTITY XOR2 IS
    PORT (in1,in2 :IN STD_LOGIC;
            out1      :OUT STD_LOGIC);
END XOR2;
ARCHITECTURE ARCH2 OF XOR2 IS
BEGIN
    out1 <= in1 XOR in2;
END ARCH2;
LIBRARY ieee;
USE ieee.std_logic_1164.all;
ENTITY AND2 IS
    PORT (in1,in2 :IN STD_LOGIC;
            out1      :OUT STD_LOGIC);
END AND2;
ARCHITECTURE ARCH3 OF AND2 IS
BEGIN
    out1 <= in1 AND in2;
END ARCH3;
LIBRARY ieee;
USE ieee.std_logic_1164.all;
ENTITY OR2 IS
    PORT (in1,in2 :IN STD_LOGIC;
            out1      :OUT STD_LOGIC);
END OR2;
ARCHITECTURE ARCH4 OF OR2 IS
BEGIN
    out1 <= in1 OR in2;
END ARCH4;
LIBRARY ieee;
USE ieee.std_logic_1164.all;
ENTITY FULLADDER IS
    PORT (toAdd1,toAdd2,CarryIn :IN STD_LOGIC;
            Sum,CarryOut             :OUT STD_LOGIC);
END FULLADDER;
ARCHITECTURE ARCH5 OF FULLADDER IS
BEGIN
    Sum <= (toAdd1 AND (NOT toAdd2) AND (NOT CarryIn)) OR ((NOT toAdd1) AND toAdd2 AND (NOT CarryIn)) OR ((NOT toAdd1) AND (NOT toAdd2) AND CarryIn) OR (toAdd1 AND toAdd2 AND CarryIn);
    CarryOut <= (toAdd1 AND CarryIn) OR (toAdd2 AND CarryIn) OR (toAdd1 AND toAdd2);
END ARCH5;
LIBRARY ieee;
USE ieee.std_logic_1164.all;
ENTITY OPERATION_EVAL IS
    PORT (Operation1,Operation2,Operation3,Operation4 : IN STD_LOGIC;
            OpCode                                                  : IN STD_LOGIC_VECTOR(1 DOWNTO 0);
            Final                                                     : OUT STD_LOGIC);
END OPERATION_EVAL;
ARCHITECTURE ARCH6 OF OPERATION_EVAL IS
BEGIN
    WITH OpCode SELECT
        Final <= Operation1 WHEN "00",
                    Operation2 WHEN "01",
                    Operation3 WHEN "10",
                    Operation4 WHEN OTHERS;
END ARCH6;

Altera_Forum · ‎05-19-2017

Not sure why you're doing all this manual logic gate instantiation (just create a behavioral description of the adder instead of manually connecting all these logic gates), but I think there is a gate primitive named and2. The name of the output of a gate primitive would be out, not out1, so maybe that's why you're getting the error.