dclk.fit

本源码用VHDL语言实现了用键盘控制米字管显示十进制

-- MAX+plus II Compiler Fit File      
-- Version 10.0 9/14/2000             
-- Compiled: 05/03/2002 08:57:05      

-- Copyright (C) 1988-2000 Altera Corporation
-- Any megafunction design, and related net list (encrypted or decrypted),
-- support information, device programming or simulation file, and any other
-- associated documentation or information provided by Altera or a partner
-- under Altera's Megafunction Partnership Program may be used only to
-- program PLD devices (but not masked PLD devices) from Altera.  Any other
-- use of such megafunction design, net list, support information, device
-- programming or simulation file, or any other related documentation or
-- information is prohibited for any other purpose, including, but not
-- limited to modification, reverse engineering, de-compiling, or use with
-- any other silicon devices, unless such use is explicitly licensed under
-- a separate agreement with Altera or a megafunction partner.  Title to
-- the intellectual property, including patents, copyrights, trademarks,
-- trade secrets, or maskworks, embodied in any such megafunction design,
-- net list, support information, device programming or simulation file, or
-- any other related documentation or information provided by Altera or a
-- megafunction partner, remains with Altera, the megafunction partner, or
-- their respective licensors.  No other licenses, including any licenses
-- needed under any third party's intellectual property, are provided herein.

CHIP "dclk"
BEGIN

    DEVICE = "EP1K30TC144-3";

    "clk"                          : INPUT_PIN  = 55     ;
    "divclk"                       : OUTPUT_PIN = 91     ;
    ":3"                           : LOCATION   = LC2_D4 ;  -- a
    ":4"                           : LOCATION   = LC1_D4 ;  -- cnt1
    ":5"                           : LOCATION   = LC3_D4 ;  -- cnt0

END;

INTERNAL_INFO "dclk"
BEGIN
	DEVICE = EP1K30TC144-3;
    OD5P55  : LORAX = "1:FB5->LC2_D4,->LC1_D4,->LC3_D4|";
    LC2_D4  : LORAX = "1:MSW2R3C2,HHL28R3->OH10R3P91|";
	LC2_D4  : LORAX2 = "X, LC3_D4, LC1_D4, LC2_D4";
	LC1_D4  : LORAX2 = "X, LC3_D4, LC1_D4, LC2_D4";
	LC3_D4  : LORAX2 = "X, LC3_D4, LC1_D4, LC2_D4";
END;