

        ================================================================

                    D A S (DTMF ACCESSORY SQUELCH) FIRMWARE

                                HEX CODE LISTING

                                  951105/Iss-1
        ================================================================


                               Paul Newland, ad7i
                              Post Office Box 205
                               Holmdel, NJ  07733
                                 ad7i@tapr.org


         Copyright (c) 1995 by Paul Newland, P.E.  All rights reserved.


      This software/firmware may be used by licensed radio amateurs as
      part of their amateur radio activities.  Any use of this
      software/firmware is on an "as is" basis.  I do not make and do not
      offer any warranty for this software/firmware or associated
      hardware.  Use at your own risk.

      The source code for the DAS system has not been made public.

      If you have a need to use this software/firmware in a commercial
      application, simply purchase a programmed DAS microcomputer or DAS
      unit (or kit) from TAPR and you will be square with me.

             TAPR -- Tucson Amateur Packet Radio
             8987-309 E Tanque Verde Road, #337
             Tucson, AZ  85749-9399
             +1 817 383 0000 [voice]
             +1 817 566 2544 [fax]

      Please send bug reports, questions or comments to:

             Paul Newland, P.E.
             Post Office Box 205
             Holmdel, NJ  07733
             ad7i@tapr.org

      Electronic copies of this firmware can be found on the TAPR FTP File
      Server ftp.tapr.org, look in /tapr/das; TAPR on the World Wide Web
      at "http://www.tapr.org"; and the ARRL BBS, +1 860 594 0306, 8-N-1,
      look in the FILES area, search on DAS.

      You will find the unimbellished Intel Hex Code in file DAS51103.HEX.

      This following code is in Intel HEX format and is intended to be run
      on an 8xc751 microcomputer.





      DAS-FW 951103-1.0               -2-                     951105/Iss-1



           QST ARTICLE: Dec 1995, Pages 25-31.
           FW TITLE: DAS Version 951103-1.0
           FILE: DAS51103.HEX

           :1000000001243238353236383200008154363339E3
           :1000100037363738002028432920393520414437E6
           :1000200049205B03C2AF75D000758131783F7600FF
           :10003000D8FC752FFF75311575F0FF914671522070
           :100040004D0D204E0A91145006309703D3015D30B8
           :1000500097FDF1B2912653250F432550C39231915C
           :1000600050B176203102D1F3A1D1C0A8C2AFD29352
           :10007000C233E50A6070780AD1C44002213FB4005F
           :1000800006C23291F92138B4010E79157F08E6F7DE
           :100090000809DFFA711F2138B40206791D7F0401B7
           :1000A0008EB40344D1C44002213FB40006912671AE
           :1000B0001F2138B4010471112138B4020B752107D6
           :1000C00075222075230001AFB4030B752100752242
           :1000D0000175230001AFB4040B752121752205754C
           :1000E000230001AF213F2143B4042DD1C45050243B
           :1000F000FD404C24032421F9D1C45043FED1C45007
           :100100003EFFEEFA0AE713DAFDCFA2E0EEFA0ACFDD
           :1001100033DAFDF7711F2138B40516D1C8502024F9
           :10012000F4401C240C2415F9D1CC5013F7711F2175
           :1001300038B4070BD1F62138203304B1002143D164
           :10014000F3B10DB176D0A82251005003D24A22510A
           :10015000055003D24B2231CA500B3008085325F00A
           :10016000432506218F20172C301203304B2631C433
           :100170005017304A07301104D2322194D24C300843
           :100180000853240F432470218F31EB50074138F17D
           :1001900059F17922C24AC24B22304827C248B1766F
           :1001A000E530300A0BB430085324F0432402218F89
           :1001B000300B1024C7400C240850085325F0432569
           :1001C00003218F22780A791521D0780A791D21D050
           :1001D000E7600DE76010666009E6B42A03200C02B0
           :1001E000C322080921D3E670F7D322780A7915E7EC
           :1001F000600CE76007667006080921F2D322C3226B
           :10020000900002410A90000D410A780AE4936009C7
           :10021000666002C32208A3410CE670F7D3223017B0
           :1002200012A831E66530700B053108E670087531AB
           :1002300015217E753115C322D1C8400122FFB400BB
           :1002400004C21E6105B40104D21E6105B402047427
           :10025000406108B40804C21F6105B40904D21F61DB
           :1002600005B40A0474806108B41004C21C6105B4AA
           :100270001104D21C6105B4120474106108B418048E
           :10028000C21D6105B41904D21D6105B41A0474209D
           :100290006108B41B3BD21CC21DF185750A03B1FF76
           :1002A000D108D11CD173103610301D03303AE6301E
           :1002B0003BECC23BE530B42A0EC21DF185D50ADE07
           :1002C0003097FDF1B20100B430D1D21DF179419BDC
           :1002D00030103454F8B4200A5324F0EF5407422469
           :1002E0006105EF54F8B4280B53240FEF5407C442B0
           :1002F000246105EF54F8B4300A5325F0EF54074257
           :100300002561056107711F226223D173F1A3622366



      DAS-FW 951103-1.0               -3-                     951105/Iss-1


           :10031000227152204F04911460049126C1F322915E
           :100320000F30320291F9712A6111C24DC24EC24F93
           :1003300078147A127B1074A47192204F14EB71AB75
           :10034000204F0EE6080B71AB204F0671EEF1B9DAC3
           :10035000E522C24DC24EC24F78147A1274A4719233
           :10036000204F2C741071AB204F259102204F207428
           :10037000A5719B204F19DA02618371CB204F10F6D3
           :1003800008DAF771D7204F07F6759980309EFD7116
           :10039000EE2275D852309EFD309907F59975981C5C
           :1003A00061A7D24DD24F227F0861AF7F08F5992314
           :1003B000309EFD309D10DFF57598A0309EFD309F7A
           :1003C00004D24ED24F22D24DD24F2271D77599000E
           :1003D000309EFD309D13227F08E4459923309EFD19
           :1003E000309D06DFF5A29F3322D24DD24F22C2DECE
           :1003F000759821309EFD759820309EFD759894C2A9
           :10040000DC22759822309EFD759820309EFD229149
           :1004100014EBF72279237B0FE427240319DBFAFB83
           :1004200067C37001D32279157B11900435E493F7EB
           :1004300009A3DBF9223132330000000000343536E5
           :10044000000720000000758B07758DFF758810224E
           :1004500075A88222C0E0C0D075D0080508E508B4B0
           :100460000C36750800E5092401D4F509540FD24073
           :1004700020E002D241B40502D242B4001BD241D2E4
           :1004800042D243E50920E402D244B45002D245B43A
           :100490000006D244D245D246D0D0D0E032E52E0478
           :1004A000B41801E4F52E241A83FB782D79247C00FE
           :1004B0007D02E791DB91E40CE7C491DB91E40C0948
           :1004C000DDF022FED2DED29E929E92DED2DEC21EEF
           :1004D0001A1E1A5E5A5E5A1E1A1E0A540704FAEBB6
           :1004E00013DAFD22C0D07408C39CFFEC04FEE613AF
           :1004F000DEFDD0D013DFFDF6227524007525002225
           :100500007A0AC292F1B2D292F1B2DAF6227A0AC231
           :1005100090D291F1B2D290C291F1B2DAF2D290D2ED
           :100520009122304704C247A14C303B24C23B511EAC
           :10053000E530301307B43904F185A142300D07B41A
           :100540002A04B176A150B42305752FFFD322A165EB
           :10055000C322303B09C23BE530B42A04B176C32242
           :10056000B42302D322FE780A7F09E6600508DFFA89
           :10057000A174EEF6C322780A7F0A760008DFFB2218
           :10058000782FE6B4FF02A18906E6203C1E20B40DB8
           :10059000B4642D304904C249A1C0D24722E5B05409
           :1005A0000F241D83F5307600D23C2220B40AC23CD1
           :1005B00020490DD23B760022E6B46404D248D249E9
           :1005C0002244313233343536373839302A234142E8
           :1005D00043B1F420320ED1683199B1225004314830
           :1005E000B176A1D191F953250F432540B152500264
           :1005F000116AA1D1B1FFD108D111D11CD173221040
           :10060000410122B180D13B2210420122D126919D8D
           :100610002210430122F14BF16BD1472210460122F7
           :10062000201402F18B22A297B34003F14522203817
           :1006300005D232B17622C23291F922A2974005301A
           :100640003402D236923422A2B5E5F033F5F0540FDD
           :10065000700FD23D203505301602D236A23D9235BC
           :1006600022B40FF8C23DC15C10360122F165F1855C



      DAS-FW 951103-1.0               -4-                     951105/Iss-1


           :1006700091F922C0E0E52DF4139290139291139218
           :100680009213B0B49293300811A23A723D20150132
           :10069000B39294A239B39295C1A4A21CB39294A22E
           :1006A0001DB39295300910A2B4723AB392B6A23932
           :1006B000824CB392B7C1C1A21EB392B6A21FB3922D
           :1006C000B7D0E0227A01C1CE7A02C1CE7A03E42308
           :1006D0002323FBE608D1DF4001224BDAF2D32224A8
           :1006E000D0500C243024C8400624385407D3227438
           :1006F00000C322D2332275A800758131783FE6709D
           :100700000318C1FEE8F50F852110852211852312FB
           :1007100075135B751403780F7A127590FFF1A3E6D9
           :10072000C4F12DE6F12D08DAF6F1A30100F974F019
           :10073000F590F1B2E9F444F0F590F1A3F1A37590CE
           :10074000FFF1A3E922752A14D23822792AF19950AF
           :10075000006003D23822C23822752B14300F037583
           :100760002B32D23922752B00C23922792BF19950C4
           :10077000006003D23922C23922752C1E300E037557
           :100780002CB4D23A22752C00C23A22792CF199501D
           :10079000006003D23A22C23A22E7C3600517E7702D
           :1007A00001D322F1ABF1ABF1ABE1AB7D32F1C2DDB4
           :1007B000FC227D14F1C2DDFC227E227FD4DFFEDE2E
           :0C07C000FC227E057FCADFFEDEFC22006A
           :00000001FF


                                  ---ooOoo---































