📄 onewirecontainer09.java
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/*--------------------------------------------------------------------------- * Copyright (C) 1999,2000 Dallas Semiconductor Corporation, All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL DALLAS SEMICONDUCTOR BE LIABLE FOR ANY CLAIM, DAMAGES * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Except as contained in this notice, the name of Dallas Semiconductor * shall not be used except as stated in the Dallas Semiconductor * Branding Policy. *--------------------------------------------------------------------------- */package com.dalsemi.onewire.container;// importsimport com.dalsemi.onewire.adapter.DSPortAdapter;import java.util.Vector;import java.util.Enumeration;/** * <P> 1-Wire container for 128 byte Add-Only memory (EPROM) iButton, DS1982 and 1-Wire Chip, DS2502. * This container encapsulates the functionality of the 1-Wire family * type <B>09</B> (hex)</P> * * <P> The iButton package for this device is primarily used as a read/write portable memory device. * The 1-Wire Chip version is used for small non-volatile storage. </P> * * <H3> Features </H3> * <UL> * <LI> 1024 bits (128 bytes) Electrically Programmable Read-Only * Memory (EPROM) communicates with * the economy of one signal plus ground * <LI> EPROM partitioned into four 256-bit (32-byte) pages * for randomly accessing packetized data * <LI> Each memory page can be permanently * write-protected to prevent tampering * <LI> Device is an "add only" memory where * additional data can be programmed into * EPROM without disturbing existing data * <LI> Architecture allows software to patch data by * superseding an old page in favor of a newly * programmed page * <LI> Overdrive mode boosts communication to * 142 kbits per second * <LI> Reads over a wide voltage range of 2.8V to * 6.0V from -40°C to +85°C; programs at * 11.5V to 12.0V from -40°C to +50°C * </UL> * * <H3> Alternate Names </H3> * <UL> * <LI> D2502 * </UL> * * <H3> Memory </H3> * * <P> The memory can be accessed through the objects that are returned * from the {@link #getMemoryBanks() getMemoryBanks} method. </P> * * The following is a list of the MemoryBank instances that are returned: * * <UL> * <LI> <B> Main Memory </B> * <UL> * <LI> <I> Implements </I> {@link com.dalsemi.onewire.container.MemoryBank MemoryBank}, * {@link com.dalsemi.onewire.container.PagedMemoryBank PagedMemoryBank}, * {@link com.dalsemi.onewire.container.OTPMemoryBank OTPMemoryBank} * <LI> <I> Size </I> 128 starting at physical address 0 * <LI> <I> Features</I> Write-once general-purpose non-volatile needs-program-pulse * <LI> <I> Pages</I> 4 pages of length 32 bytes giving 29 bytes Packet data payload * <LI> <I> Page Features </I> page-device-CRC pages-redirectable pages-lockable * </UL> * <LI> <B> Write protect pages and Page redirection </B> * <UL> * <LI> <I> Implements </I> {@link com.dalsemi.onewire.container.MemoryBank MemoryBank}, * {@link com.dalsemi.onewire.container.PagedMemoryBank PagedMemoryBank}, * {@link com.dalsemi.onewire.container.OTPMemoryBank OTPMemoryBank} * <LI> <I> Size </I> 8 starting at physical address 0 (in STATUS memory area) * <LI> <I> Features</I> Write-once not-general-purpose non-volatile needs-program-pulse * <LI> <I> Pages</I> 1 pages of length 8 bytes * <LI> <I> Page Features </I> page-device-CRC * </UL> * </UL> * * <H3> Usage </H3> * * <DL> * <DD> See the usage example in * {@link com.dalsemi.onewire.container.OneWireContainer OneWireContainer} * to enumerate the MemoryBanks. * <DD> See the usage examples in * {@link com.dalsemi.onewire.container.MemoryBank MemoryBank}, * {@link com.dalsemi.onewire.container.PagedMemoryBank PagedMemoryBank}, and * {@link com.dalsemi.onewire.container.OTPMemoryBank OTPMemoryBank} * for bank specific operations. * </DL> * * <H3> DataSheets </H3> * <DL> * <DD><A HREF="http://pdfserv.maxim-ic.com/arpdf/DS2502.pdf"> http://pdfserv.maxim-ic.com/arpdf/DS2502.pdf</A> * <DD><A HREF="http://pdfserv.maxim-ic.com/arpdf/DS1982.pdf"> http://pdfserv.maxim-ic.com/arpdf/DS1982.pdf</A> * </DL> * * @see com.dalsemi.onewire.container.MemoryBank * @see com.dalsemi.onewire.container.PagedMemoryBank * @see com.dalsemi.onewire.container.OTPMemoryBank * @see com.dalsemi.onewire.container.OneWireContainer0B * @see com.dalsemi.onewire.container.OneWireContainer0F * * @version 0.00, 28 Aug 2000 * @author DS */public class OneWireContainer09 extends OneWireContainer{ //-------- //-------- Constructors //-------- /** * Create an empty container that is not complete until after a call * to <code>setupContainer</code>. <p> * * This is one of the methods to construct a container. The others are * through creating a OneWireContainer with parameters. * * @see #setupContainer(com.dalsemi.onewire.adapter.DSPortAdapter,byte[]) super.setupContainer() */ public OneWireContainer09 () { super(); } /** * Create a container with the provided adapter instance * and the address of the iButton or 1-Wire device.<p> * * This is one of the methods to construct a container. The other is * through creating a OneWireContainer with NO parameters. * * @param sourceAdapter adapter instance used to communicate with * this iButton * @param newAddress {@link com.dalsemi.onewire.utils.Address Address} * of this 1-Wire device * * @see #OneWireContainer09() OneWireContainer09 * @see com.dalsemi.onewire.utils.Address utils.Address */ public OneWireContainer09 (DSPortAdapter sourceAdapter, byte[] newAddress) { super(sourceAdapter, newAddress); } /** * Create a container with the provided adapter instance * and the address of the iButton or 1-Wire device.<p> * * This is one of the methods to construct a container. The other is * through creating a OneWireContainer with NO parameters. * * @param sourceAdapter adapter instance used to communicate with * this 1-Wire device * @param newAddress {@link com.dalsemi.onewire.utils.Address Address} * of this 1-Wire device * * @see #OneWireContainer09() OneWireContainer09 * @see com.dalsemi.onewire.utils.Address utils.Address */ public OneWireContainer09 (DSPortAdapter sourceAdapter, long newAddress) { super(sourceAdapter, newAddress); } /** * Create a container with the provided adapter instance * and the address of the iButton or 1-Wire device.<p> * * This is one of the methods to construct a container. The other is * through creating a OneWireContainer with NO parameters. * * @param sourceAdapter adapter instance used to communicate with * this 1-Wire device * @param newAddress {@link com.dalsemi.onewire.utils.Address Address} * of this 1-Wire device * * @see #OneWireContainer09() OneWireContainer09 * @see com.dalsemi.onewire.utils.Address utils.Address */ public OneWireContainer09 (DSPortAdapter sourceAdapter, String newAddress) { super(sourceAdapter, newAddress); } //-------- //-------- Methods //-------- /** * Get the Dallas Semiconductor part number of the iButton * or 1-Wire Device as a string. For example 'DS1992'. * * @return iButton or 1-Wire device name */ public String getName () { return "DS1982"; } /** * Get the alternate Dallas Semiconductor part numbers or names. * A 'family' of 1-Wire Network devices may have more than one part number * depending on packaging. There can also be nicknames such as * 'Crypto iButton'. * * @return 1-Wire device alternate names */ public String getAlternateNames () { return "DS2502"; } /** * Get a short description of the function of this iButton * or 1-Wire Device type. * * @return device description */ public String getDescription () { return "1024 bit Electrically Programmable Read Only Memory " + "(EPROM) partitioned into four 256 bit pages." + "Each memory page can be permanently write-protected " + "to prevent tampering. Architecture allows software " + "to patch data by supersending a used page in favor of " + "a newly programmed page."; } /** * Get the maximum speed this iButton or 1-Wire device can * communicate at. * Override this method if derived iButton type can go faster then * SPEED_REGULAR(0). * * @return maximum speed * @see com.dalsemi.onewire.container.OneWireContainer#setSpeed super.setSpeed * @see com.dalsemi.onewire.adapter.DSPortAdapter#SPEED_REGULAR DSPortAdapter.SPEED_REGULAR * @see com.dalsemi.onewire.adapter.DSPortAdapter#SPEED_OVERDRIVE DSPortAdapter.SPEED_OVERDRIVE * @see com.dalsemi.onewire.adapter.DSPortAdapter#SPEED_FLEX DSPortAdapter.SPEED_FLEX */ public int getMaxSpeed () { return DSPortAdapter.SPEED_OVERDRIVE; } /** * Get an enumeration of memory bank instances that implement one or more * of the following interfaces: * {@link com.dalsemi.onewire.container.MemoryBank MemoryBank}, * {@link com.dalsemi.onewire.container.PagedMemoryBank PagedMemoryBank}, * and {@link com.dalsemi.onewire.container.OTPMemoryBank OTPMemoryBank}. * @return <CODE>Enumeration</CODE> of memory banks */ public Enumeration getMemoryBanks () { Vector bank_vector = new Vector(2); // EPROM main bank MemoryBankEPROM mn = new MemoryBankEPROM(this); mn.numberPages = 4; mn.size = 128; mn.pageLength = 32; mn.extraInfo = false; mn.extraInfoLength = 0; mn.extraInfoDescription = null; mn.numCRCBytes = 1; mn.normalReadCRC = true; mn.READ_PAGE_WITH_CRC = ( byte ) 0xC3; bank_vector.addElement(mn); // EPROM status write protect pages bank MemoryBankEPROM st = new MemoryBankEPROM(this); st.bankDescription = "Write protect pages and Page redirection"; st.numberPages = 1; st.size = 8; st.pageLength = 8; st.generalPurposeMemory = false; st.extraInfo = false; st.extraInfoLength = 0; st.extraInfoDescription = null; st.numCRCBytes = 1; st.normalReadCRC = true; st.READ_PAGE_WITH_CRC = MemoryBankEPROM.STATUS_READ_PAGE_COMMAND; st.WRITE_MEMORY_COMMAND = MemoryBankEPROM.STATUS_WRITE_COMMAND; bank_vector.addElement(st); // setup OTP features in main memory mn.mbLock = st; mn.lockPage = true; mn.mbRedirect = st; mn.redirectOffset = 1; mn.redirectPage = true; return bank_vector.elements(); }}
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