Mentor ADMS compiling error

[kevin.memi]

Hi all,
I am a newbie with Mentor ADMS. I am trying to compile a simple tutorial from Mentor ADMS, adc-12. But there is an error in compiling as below:

Compiling file comparator.vhd
Compiling Entity Declaration comparator
Code generation for work.comparator
Compiling Architecture level0 of comparator
Code generation for work.level0/comparator
Error: (vacom) While compiling file "comparator.vhd":
Code generation failed for unit "level0/comparator" in library "work"
ARCHITECTURE level0/comparator deleted

I did try with many other tutorials, but the error is the same.
I greatly appreciate who help me. Thank a lot.

PS. for your convenience, I attach the tutorial AMS file as well.

library IEEE;
use IEEE.std_logic_1164.all;
use IEEE.electrical_systems.all;

-- entity definition
entity comparator is
  -- threshold voltage has been defined as a generic
  generic (
    vthreshold : REAL := 0.1);
  -- Port interface for this entity is composed by a terminal and a value
  port (
    terminal p: Electrical;
    value: out std_logic);
end comparator;

architecture Level0 of comparator is

-- Voltage definition as an across quantity 
quantity v across p to electrical_ref;
function level(v, vthreshold: REAL) return std_logic is
begin
  if v < vthreshold then
    return '0';
  else
    return '1';
  end if;
end function level;

begin
  process
  begin
-- level(v, vthreshold) checks for threshold crossing. . .
    case level(v,vthreshold) is
      -- Wait statements substitute process's sensivity list. . .
      when '0'  => value <='0';
                   wait on v'Above(vthreshold);
      when '1' =>  value <='1';
                   wait on v'Above(vthreshold);
      when others => value <= '0';
    end case;
  end process;
end Level0;

 

[wwjlisa]

Where did you get the tutorials?Can you share it with me?Email it to me if possible: wwjlisa@163.com
Thank you in advance.