This file was prepared by: COMMtronics Engineering 3.5 PO Box 262478 CE1.0b San Diego, CA 92196 e-mail: bcheek@cts.com and is copyrighted (c) 1995 - All rights are reserved. This file may contain later information than the Manual. 旼컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� � VERY IMPORTANT - READ THIS FIRST! November 15, 1995 � 읕컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� OTHER SCANNERS NOW SUPPORTED BY THE CE-232 ========================================== There are a few additions to the software that have not been caught up in the Manual and other documentation yet. First, beginning today, we will include all the latest scanner "personality" files with all shipped disk versions of the CE-232 Program. Formerly, these were for separate sale along with the supplementary instructions for individual scanners besides the standard PRO-2004, PRO-2005, and PRO-2006. That is, users had to buy the extra file(s) and instructions to make their CE-232 work with other scanners. Well, the CE-232 is still primarily for the PRO-2004/5/6 series, but we are making it easier than ever to adapt it to other scanners, too! Now we are including all current scanner/CE-232 "personality" files on the main Program disk. This reduces our costs of handling and stocking extra disks. You must still purchase the necessary instruction manual supplements for specific scannersbesides the PRO-2004/5/6, but we have substantially reduced the cost as follows: Supplementary Instruction Manuals for other specific scanners: New Normal price: $14.95 ea, ppd, domestic; foreign add $5.00 S&H If purchased at the same time as the CE-232 Kit, or if purchased within 30-days after sale of the CE-232 Kit: $ 9.95 ea, ppd, domestic; foreign add $5.00 S&H * * foreign S&H free if purchased at same time as CE-232 Kit Other scanners now supported with proven personality files and tested documentation include the following: PRO-2035: AutoProgram & PC Keyboard Control Only PRO-2022: AutoProgram & PC Keyboard Control Only PRO-43: AutoProgram & PC Keyboard Control Only PRO-39: AutoProgram & PC Keyboard Control Only PRO-37: AutoProgram & PC Keyboard Control Only PRO-34: AutoProgram & PC Keyboard Control Only PRO-26: AutoProgram & PC Keyboard Control Only * PRO-2042: AutoProgram & PC Keyboard Control Only * Undergoing beta testing now. NOTE: The CE-232 Interface is a full featured, 2-way data acquisition and control interface for the PRO-2004/5/6 series, thanks to these scanners using separate CPU and LCD Display data chips. Unfortunately, no other scanners to date use the separate chips; instead, they cut corners by having the LCD Display data chip on board the CPU chip where we cannot access the display data. This means that the CE-232 is a 1-way AutoProgrammer and remote control interface for all other scanners - data acquisition not possible. This is a limitation of the scanner, NOT the CE-232, and there is nothing we can do about it. Still, most users feel the CE-232 is a bargain for it's AutoProgram capability alone. It is on that basis that we make the CE-232 available for other scanners. WHAT IF YOU HAVE A SCANNER NOT LISTED ABOVE? ============================================ Well, we can develop personality files for unlisted scanners and assist or guide you to a successful installation of the CE-232 for it. There are conditions, however, before we will even think of such a thing: (1) You MUST have the official service manual for that scanner, and either lend it to us or give us a clear, legible copy of it, if we don't already have one. (2) At our option, you MUST purchase a Supplementary Manual for one of the scanners listed above - because it may be your ONLY formal guidance in the matter of wiring it for your unlisted scanner. We may not require this of you, but it is our option. (3) You must understand and accept the limitations and risks of beta testing - which is what development of files and documentation for unlisted scanners amounts to. There will be trial and error, and it may require several attempts before a working personality file is developed. I will work CLOSELY with you on every aspect of development for unlisted scanners....often arm-in-arm, so to speak, but there are slight risks, depending, and you will be liable for your share of them, if I am to develop for you. Understand? (4) Since we will be working together rather closely, it is imperative that you have either an Internet e-mail account so we can exchange quick and timely correspondence, or at the very least, be willing to connect with my BBS at regular intervals throughout the period of development. I do NOT do voice support whatsoever; written e-mail via the Internet or my BBS are about the only options. US Mail is absolutely out and FAX is not practical for this purpose. e-mail: bcheek@cts.com BBS: (619) 578-9247 5:30pm-1:30pm, PST weekdays; 24-hrs weekends. BBS closed 1:30pm-5:30pm weekdays. (5) You need to have a CE-232 already working and functional with some other listed scanner, and you must have built and installed it pretty much in conformance with my instructions and guidelines in the Manual. If you agree to the above five terms, I may be able to guide you to success in the adaptation of the CE-232 to unlisted scanners. Generally speaking, it is probably not worthwhile to do this for pre-1986 scanners, and those with under 50-channels of programmable memory. MORE INFORMATION ================ The CE-232 Scanner/Computer Interface is a direct replacement/upgrade for the now discontinued HB-232 model. The HB-232 had no chance of upward revision and continued product development so we needed to turn in a different direction. For now, the CE-232 maintains the same specifications and features as the old HB-232, but it is upwardly mobile. Stay in touch with us for news of continued developments. Note the three files on your 3.5" program disk: This one (README.TXT), and two others: CE-232.EXE and MISC.ZIP. The file of interest and greatly explained below is CE-232.EXE. Do not get involved with the MISC.ZIP file now, or if you do, keep it apart from your CE-232 files. It is not related to them. MISC.ZIP contains a handful of interesting and possibly useful shareware programs to enhance your computing needs. If you are a novice computist, just disregard MISC.ZIP for a few weeks. It is not important to your initial efforts with the CE-232 Scanner/Computer Interface. CAVEAT: In no case do we provide technical support for these or any other shareware programs that might be included with your disk. These files are simply provided as a courtesy to both you and the authors. It's up to you what you do/don't do with these programs. Our Tech Support is exclusively for the CE-232 hardware and software. 旼컴컴컴컴컴컴컴컴컴컴컴컴� � CE-232 PROJECT OVERVIEW � 읕컴컴컴컴컴컴컴컴컴컴컴컴� 1. Build CE-232 Board from Kit per instruction manual 2. Install CE-232 Board per instruction Manual A. In an external metal box (the best way!) 1) Install female DB-25 chassis connectors on the back of the metal box -=AND=- on the back of the scanner. Later, a 6-ft 25-conductor cable with female DB-25 connectors will connect the CE-232 box to the scanner. There are other long range uses for this approach using the DB-25 connectors and cable. 2) Build and install the 74HC4050 buffer circuit inside the scanner as close to the Logic/CPU Board as possible. This is explained in the Manual. 3) Also install a male DB-9 connector on the CE-232 box to accept a serial cable from the PC. B. Inside scanner Not the best idea, but if you must install the CE-232 inside the scanner, then read the Manual first. 74HC4050 Buffer circuit is optional for internal installations. You'll need a DB-9 male connector on the back of the scanner to accept a serial cable from the PC. 3. If (2B) above, connect a straight through serial cable between the computer's COM1 or COM2 serial port and the input to the CE-232. If (2A) above, connect a straight through serial cable between the computer's COM1 or COM2 serial port and the input to the CE-232, and a 25-cond parallel cable between the CE-232 and the scanner. 4. Check all your work, ensuring no mistakes and clean work. Then read and follow the rest of the instructions below. 旼컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� � SETTING UP AND RUNNING THE CE-232 SOFTWARE � 읕컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� The main file on this 3.5" disk, CE-232.EXE, is an executable, self-extracting archive (compacted) file. You can execute it from ANY MS-DOS command line prompt, BUT please be careful WHERE you execute this file! Read on! CE-232.EXE will expand out into the below listed directory structure and files. It will build its directory structure starting in the directory in which you execute it, therefore, you should COPY this file into the preferred directory FIRST before executing it. Normally, it should be copied into the root directory of your hard disk drive, C:\ or D:\, etc. For example, suppose this floppy disk is in Drive B: B:\>_ then, type: COPY B:\*.* C:\ (and press ENTER) The above command copies all files, (this one and CE-232.EXE) from Drive B to Drive C's root directory, which is probably where you want them for starters. If this disk is in Drive A, then change the above command accordingly, as well as the destination drive if you want it to be somewhere else. 旼컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� � DRIVE:\DIRECTORY\SUBDIRECTORY � 읕컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� C:\CE-232 � 쳐컴TOOLS � � � 쳐컴QEDIT � 읕컴LISTE 쳐컴DOCS 쳐컴APF 쳐컴LOG 쳐컴SCR 읕컴REJ Following is a detailed breakdown of the above structure, that will be created when you execute CE-232.EXE C:\CE-232 旼컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴커 컴컴컴� � FILENAME.EXT SIZE DATE TIME � � 읕컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴켸 쳐컴\TOOLS � � � 쳐\QEDIT---(See Note 8 below) � � � � � � � � 읕 (QEDITv3.0c and related files, not listed here) � � � 읕\LISTE-----(See Note 9 below) � � � 읕 (Vern Buerg's LISTv9.0h DOS navigator and � related files not listed here) � � NOTE: QEDIT & LIST supplied only on 3.5" � floppy disk; not 5.25" disks. � 쳐컴\DOCS � CEMANUA2.TXT 246516 01/03/95 10:20 � 쳐컴\APF � BLUEANGL.APF 1464 08/09/93 22:03 Sample *.APF file � LAXCITYP.APF 7444 12/31/92 00:36 " " " � BUGFREQS.APF 1609 10/27/94 22:58 " " " � 쳐컴\LOG � 94010315.LOG 513 01/03/94 15:36 Sample AutoLog File � 93090222.LOG 9240 09/02/93 22:11 " " " � 쳐컴\SCR � ANDORSCR.TXT 2162 06/27/93 01:33 < --- Good info! � AUTOSCAN.SCR 1185 11/16/92 04:34 � BANDPLAN.SCR 37721 07/05/93 21:08 � BERNIER .SCR 627 11/15/92 20:40 � BIRDFIND.SCR 1314 10/10/93 21:46 < --- Note 7 below � CHANCOPY.SCR 1302 04/07/93 13:59 � CHANDUMP.SCR 758 05/13/93 21:41 � CLFRQLOD.SCR 2875 06/12/93 10:11 � CRDLSLD1.SCR 2768 06/12/93 10:11 � CUSTBANK.SCR 373 06/07/92 12:07 � EXTDELAY.SCR 1294 11/15/92 16:03 � EXTDLY1 .SCR 1378 11/17/92 20:47 � EXTDLY2 .SCR 2175 11/17/92 18:33 � HBZERO .SCR 2317 10/22/92 11:33 � HELP .TXT 2718 10/22/92 11:34 � JAKES .SCR 2633 04/07/93 15:25 � JVCPAUSE.SCR 1405 11/15/92 15:56 � LOADER .SCR 1348 07/05/93 18:31 � LOCKZERO.SCR 1664 10/05/92 04:52 � LODUMP .SCR 1104 08/28/92 14:12 � LOGNLOK .SCR 885 08/08/92 19:32 � LOGTOUT .SCR 775 11/24/92 18:20 � LOGTOUT2.SCR 346 05/16/92 09:20 � LOGTOUT3.SCR 461 05/26/92 13:53 � LOG_PLUS.SCR 2015 09/16/92 19:06 � LOK_ULOK.DOC 1152 10/11/92 11:54 � LOOK-UP .SCR 118 09/17/93 15:23 � LSEARCHR.SCR 3438 01/31/93 00:35 � MAKEZERO.SCR 3200 10/05/92 05:06 � MASTRSEL.SCR 2553 06/21/93 10:36 � MASTRSL2.SCR 3195 06/28/93 22:16 � OUTBYTE .SCR 362 05/03/93 17:01 � OUTBYTE0.SCR 38 05/03/93 18:02 � OUTBYTE1.SCR 38 05/03/93 17:50 � OUTBYTE2.SCR 38 05/03/93 18:05 � RECTIME1.SCR 11343 08/22/93 18:27 � RECTIME2.SCR 11354 08/22/93 18:29 � REJECTLD.SCR 679 12/08/92 21:22 � SCAN .SCR 959 07/15/93 21:11 � SEARCH .SCR 1494 08/03/93 19:19 � SEARCHR .SCR 3077 04/08/93 17:46 � SELECTAL.SCR 699 06/13/93 20:52 � SERCHSET.SCR 471 06/13/93 22:16 � SPEEDLMT.SCR 5237 07/05/93 23:56 � SWBANK .SCR 94 04/28/92 15:05 � SYKES .SCR 6939 12/13/92 09:41 � TEST .SCR 1090 04/16/93 20:52 � TEST2 .SCR 26 04/26/93 16:05 � TOGDELAY.SCR 1177 04/09/93 05:17 � ULOKNON0.SCR 2560 10/11/92 11:54 � UNLOKALL.SCR 2688 10/11/92 11:53 � WEBBMNUA.SCR 16142 01/03/93 17:47 � WEBBMNUB.SCR 19698 01/03/93 17:24 � ZEROSCRP.DOC 1280 10/05/92 23:55 � � 쳐컴\REJ � BIRDIE .REJ 1100 11/24/92 23:29 < --- Note 7 � � Main directory files below; subdirectory files above 旼컴컨컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴커 � 20045V13.PER 4944 01/08/93 13:18 � < --- Note 6 below � 2006V13 .PER 4931 01/08/93 13:21 � < --- Note 6 below � ALOGV13 .HLP 1253 12/24/92 16:21 � � APGMV13 .HLP 1754 11/25/92 09:38 � � CBOOTNEW.BAT 129 01/03/95 13:00 � < --- Note 1 below � CBOOTREG.BAT 112 01/03/95 12:59 � < --- Note 2 below � CE232 .ICO 766 01/03/95 11:31 � � CE232 .PIF 995 01/03/95 12:35 � � CE232V10.EXE 216668 01/03/94 13:43 � < --- Note 4 below � CE232WIN.BAT 106 01/03/95 12:10 � � CFGV13 .HLP 984 12/20/92 12:56 � � CLOADV10.EXE 58758 01/03/94 13:43 � < --- Note 5 below � CMDLNV13.HLP 1454 11/27/92 12:16 � < --- Note 1 below � EPROMV10.EXE 52796 01/03/94 13:40 � < --- Note 3 below � HB232 .CFG 216 01/03/95 12:54 � < --- Note 5 below � HBOOTV13.EXE 58758 01/11/93 12:17 � � HELPV13 .IDX 1022 01/08/93 13:35 � � LKUPV13 .HLP 1165 11/25/92 09:52 � � MENUV13 .HLP 795 11/25/92 09:27 � � MISCV13 .HLP 397 11/25/92 09:53 � � PAGEV13 .HLP 1251 11/25/92 09:57 � � PER .IDX 1008 11/15/95 14:21 � � PRO2022D.PER 5018 11/07/95 16:56 � � PRO2035B.PER 5113 11/07/95 17:37 � � PRO2042C.PER 5124 11/07/95 17:04 � � PRO26C .PER 5051 11/07/95 16:52 � � PRO34D .PER 5016 11/07/95 16:55 � � PRO37B .PER 4985 11/07/95 16:44 � � PRO39C .PER 4936 11/07/95 16:47 � � PRO43C .PER 5000 11/07/95 16:54 � � REJV13 .HLP 1766 11/25/92 10:39 � � SCRV13 .HLP 1021 11/25/92 10:21 � � TCV13 .HLP 3033 11/25/92 12:09 � � TOOLV13 .HLP 842 11/25/92 10:26 � 읕컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴켸 After CE-232.EXE has been executed and has created the above structure on your hard drive, you should delete CE-232.EXE to avoid needless occupation of space on the hard drive. This file remains on your floppy program disk as a backup anyway and will not be needed for operations. Therefore, you will need a free space on your hard drive of about 2.5-Mb to install the software and after deleting CE-232.EXE, about 1.5-Mb to operate. Following now are Notes from above. Be sure to read them ALL and the comments at the end of this file. Note 1: CBOOTNEW.BAT is a batch file, similar to that described in Note 2 below except that it contains a loader for the EEPROM part of the CE-232's microprocessor and special one-time startup code to guide you through the initial configurations and setups. After your kit has been assembled and checked, it must be programmed using the EPROMV10.EXE executable file that's contained in this batch file. You can run either program, but CBOOTNEW.BAT is an easy way to do it and to run a total system test on your CE-232 Interface without really knowing what you're doing. To run it, you must know which COMport (1 or 2) your CE-232 is connected to, and enter that number when prompted. Follow on-screen instructions to perform this simple task. Once done, it never need be repeated unless we change something and send you a new EPROM file. To run this file, be at the DOS prompt in the CE-232 main directory as follows: C:\CE-232\>_ and type: CBOOTNEW.EXE (Best if you're a novice) or, EPROMV10.EXE (Ok, if you're hip) and follow the on-screen instructions. Once either of the above two programs have been successfully run, you need not run either one again unless we change something and send you new files. For subsequent operations after this first time only, see Notes 3 and 4. ATTENTION: If you purchased an Assembled/Tested CE-232 board from us, you will not need to perform this Note 1 procedure. It will already have been done. You can do it anyway, but it's necessary only for those CE-232 boards built by the User from the Kits. Note 2: HB232.CFG is the configuration file for the CE-232 operating program. It must be properly set up before things can run correctly, however, all of its setups can be performed as a part of the CBOOTNEW.BAT procedure in Note 1 above. Settings can be changed from within the CE-232 Program from the F6 function key, so don't worry about it now. This file can be edited with an ASCII text editor if you are so familiar; otherwise, don't be concerned at all about this file for now. Note 3: CBOOTREG.BAT is an easy way to get up and running while you are inexperienced with the CE-232 and its program operations. This batch file makes it simple to begin operating the CE-232 program. Later, you can read the Manual and find easier ways to launch the program. To run CBOOTREG.BAT, you need to know which COMport (1 or 2) your CE-232 is connected to, and what type of scanner (PRO-2004, 2005 or 2006) you're running. You will be prompted to enter these after executing CBOOTREG.BAT, and after entering the correct answers, things will be self running until you master the details. This file will not properly run or operate until after you have completed the procedure in Note 1 above. Follow the on-screen instructions as they appear. Note 4: CE232V10.EXE is the main operating program for the CE-232 Interface. After you have followed the instructions in Note 1 above, you can run this program anytime in lieu of the CBOOTREG.BAT batch file described in Note 3. It's a little smoother than CBOOTREG.BAT, but either will do the job. Note 5: HBOOTV13.EXE and CLOADV10.EXE are "transparent" files. Don't do anything with them. They're used periodically by the CE232V10 program, but you don't have to know anything about them other than to leave 'em alone. Note 6: 20045V13.PER and 2006V13.PER are the special personality files to configure the CE-232 for your particular scanner. Ordinarily, you do nothing with these files; they will be called up automatically from the prompts and answers you provide to the on-screen instructions in Notes 1, 3, and 4 above. If you have peculiar operations with your PRO-2006 scanner, you can try selecting the file for the PRO-2004/5 by means of the 20045V13.PER file above. This is selected in the on-screen instructions relative to Notes 1, 3, and 4 above. Conversely, you can try the 2006V13.PER file with your PRO-2004 which might speed up the AutoProgrammer feature for some scanners. Whenever in doubt, select the corresponding file that matches your scanner, but feel free to experiment with the opposite one, too. Note 7: The BIRDIE.REJ file on this disk will probably not be very accurate for your scanner. It was made for one of my scanners and is included here only as an example. You will want to build your own unique "birdie" reject file. There is a SCRIPT for this purpose in the \SCR subdirectory called: BIRDFIND.SCR Instructions for running this SCRIPT are in the first few lines of the file. When it's done, 60-90-mins later, use a text editor to edit the new *.REJ file to conform with the format and appearance of my BIRDIE.REJ file given here. Note 8: A great ASCII text editor has been included for your convenience. QEDIT, version 3.0c is very powerful and potent editor! It is neither freeware nor expressly licensed to you. QEDIT is shareware and as such, must be registered and paid for if you use it beyond the limitations stipulated in the files. Note 9: Vernon Buerg's famous DOS navigator and multipurpose tool, LIST v7.7A has been included for your convenience. Like with QEDIT, LIST is neither freeware nor licensed to you unless you register and pay for it in accordance with the terms of the license agreement in the LIST files. TECHNICAL SUPPORT for all HB-232 and CE-232 products is available on our Hertzian Intercept BBS (619) 578-9247 after 5:30pm and before 1:30pm, PST, weekdays and 24-hrs on weekends. Replies are normally made within 24-hrs and it rarely takes more than one or two request/reply sessions to narrow the problem down to an effective solution. If you do not have a modem or do not wish to take advantage of this service, but still need Technical Support, the next best option is FAX at the same number as the BBS above, same hours. Our response time is usually 24-hrs or less. The worst, but workable option for Technical Support is US Mail. Again, replies are made within 24 hours in most cases. NOT AVAILABLE by way of Technical Support is voice-telephone. We do not have the staff or resources to dedicate to voice lines. The receptionist who answers our sales & admin line between 1:30pm-5:30pm does not render Technical Support; that line is for orders and business-problem resolution only. Our methods of Technical Support are very effective, cost effective, pertinent and to the point, and extremely valuable. In all cases, the request is in writing to which our response is in writing. There is no forgetting or misunderstanding what was said, done and suggested. The trail of writing also allows us to maintain complete familiarity with your specific situation. These three methods may require a little more time, but trust me, BBS/Fax or mail get the job done in a most effective and efficient manner, the cost of which is so moderate that it is not built into the cost of the Product, as it would certainly be if we were forced to maintain support personnel and voice lines. NOTE: Tech support now available by Internet e-mail: bcheek@cts.com Please understand that we cannot provide much in the way of Technical Support for your computer, MS-DOS, Windows, and the hundreds of variables in the way you run your equipment and software. If you are not familiar with MS-DOS or not very sharp at computing, you should contact your favorite computer dealer or a local user's group in your area for that kind of support. If we sold you your computer, we'll support it. But since we don't sell computers............... ??? MOST REPORTED PROBLEMS are associated with Wires/Points I, J, K, L, and M as depicted in various charts and photos in the Manual, and MOST of these problems are found to be at the terminations of I-M on the scanner's Logic/ CPU Board. When you make connections of I-M to the scanner's Logic/CPU Board, be very sure that you locate and identify each point in advance of applying the soldering iron. These five points are not difficult to locate and identify, but be sure of them before you proceed. For some odd reason, very few problems are reported to be on the CE-232's printed circuit board. Apparently most people really take their time and are careful. You be so, too. What few problems there are on the board, are usually solder flecks and "blobs" that short out to adjacent traces or pads. There have been a few problems determined to be associated with Wires/Points O-Z. In most cases, these wind up being crossed wires or bad connections. Some situations have come up where the User finds that the CE-232 will control most, but not all of the scanner's 29 keyboard functions. In these stubborn cases, the fix is certain: use the four 47-k resistors (R4-R7) at the scanner's keyboard connector, Points W, X, Y and Z. Be sure that you have eight good diodes at scanner terminations O-V, too, and be sure their polarity is correct. The Manual is very good at diagnosing this sort of problem, if the resistors won't fix it. (Usually an error, then.) There is a rare problem with certain PRO-2006's in that the AutoProgrammer function does not work properly without the scanner constantly missing digits and sending ERROR codes. This will be neither your fault nor the CE-232's! It seems that some PRO-2006's are out of tolerances for which the CE-232's personality files were designed. The cure is certain, and a very good one at that: change your CE-232 configurations so that it thinks you have a PRO-2004 or PRO-2005 scanner instead. (F6 in the program, Basic parameters, personality file setting.) You will lose nothing at all, and in fact, the performance of your particular setup will be far better than those of us with "normal" PRO-2006's. If that ain't a fine howdy-do, I don't know what is. 郞袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴拷 � REFER TO THE HARD MANUAL FOR OTHER NEEDED INFORMATION. � 突袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴槁