error with using a macro

Ther are no macros in VHDL.

Have you including the source code for a_74283 in the project, or have you included the correct library?

I only added the:

LIBRARY altera;

USE altera.maxplus2.all;

in my program, as the a_74283 component is in the maxplus2.vhd file under maxplus2\vhdl93\altera folder (there from installation of MAX+plus II).

I am not sure exactly where the source code for the a_74283 component is situated (from the install of MAX+plus II)?

I would have thought maxplus2 should know where its own libraries are. But the error you have is an error of missing source code.

ANy reason you're using maxplus2? its a very old program.

I am trying to teach myself FPLDs in AHDL, VHDL and Verilog.

The Technikon I attended added an FPLD course (in Graphic Design Entry, AHDL & VHDL) after I graduated, so I bought the kit from the lecturer (a while back). I have only recently started with it. The FPLD (EPM7032SLC44-10) is also obsolete. But because I am working from course notes and MAX+plus II is still available, I am using it as a beginner.

Back to the problem:

I also get the error for using a user macro/component. I use a previous exercise as a component; I add the folder of the exercise (component to use) in User Libraries. Following is the program (exercise) using exercise 1v as a component:

-- Exercise 14v: A 4-Bit Up Counter Using a Macro as the 7-Segment Display Decoder

ENTITY Ex14v IS

PORT

(

clk :IN BIT;

SSout :OUT INTEGER RANGE 127 DOWNTO 0

);

END Ex14v;

ARCHITECTURE usermacro OF Ex14v IS

SIGNAL cnt :INTEGER RANGE 15 DOWNTO 0;

COMPONENT ex1v IS

PORT

(

bn :IN INTEGER RANGE 15 DOWNTO 0;

SS :OUT INTEGER RANGE 127 DOWNTO 0

);

END COMPONENT;

BEGIN

PROCESS

BEGIN

WAIT UNTIL clk'EVENT AND clk = '1';

cnt <= cnt + 1;

END PROCESS;

decoder :ex1v PORT MAP (cnt,SSout);

END;

Following is exercise 1v program:

-- Exercise 1v: A 4-Bit Binary to 7-Segment Decoder

ENTITY Ex1v IS

PORT (

bn :IN INTEGER RANGE 15 DOWNTO 0;

SS :OUT INTEGER RANGE 127 DOWNTO 0

);

END Ex1v;

ARCHITECTURE max OF Ex1v IS

BEGIN

SS <= 2#111_1110# WHEN bn = 0 ELSE -- Binary, Decimal

2#011_0000# WHEN bn = 1 ELSE

2#110_1101# WHEN bn = 2 ELSE

2#111_1001# WHEN bn = 3 ELSE

2#011_0011# WHEN bn = 4 ELSE

2#101_1011# WHEN bn = 5 ELSE

2#101_1111# WHEN bn = 6 ELSE

2#111_0000# WHEN bn = 7 ELSE

2#111_1111# WHEN bn = 8 ELSE

2#111_1011# WHEN bn = 9 ELSE

2#111_0111# WHEN bn = 10 ELSE

2#001_1111# WHEN bn = 11 ELSE

2#100_1110# WHEN bn = 16#C# ELSE -- Binary, Hexadecimal

2#011_1101# WHEN bn = 16#D# ELSE

2#100_1111# WHEN bn = 16#E# ELSE

2#100_0111# WHEN bn = 16#F#;

END;

Adding the folder: Options -> User Libraries... -> ..\ex1v (folder containing exercise 1v files) -> Add -> OK