Committer:
svlach
Date:
Tue Nov 30 22:11:18 2010 +0000
Revision:
0:70c3bea805ee
Child:
1:dcf2f8359398

        

Who changed what in which revision?

UserRevisionLine numberNew contents of line
svlach 0:70c3bea805ee 1 //---------------------------------------------------------------------------
svlach 0:70c3bea805ee 2 // Copyright (C) 2000 Dallas Semiconductor Corporation, All Rights Reserved.
svlach 0:70c3bea805ee 3 //
svlach 0:70c3bea805ee 4 // Permission is hereby granted, free of charge, to any person obtaining a
svlach 0:70c3bea805ee 5 // copy of this software and associated documentation files (the "Software"),
svlach 0:70c3bea805ee 6 // to deal in the Software without restriction, including without limitation
svlach 0:70c3bea805ee 7 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
svlach 0:70c3bea805ee 8 // and/or sell copies of the Software, and to permit persons to whom the
svlach 0:70c3bea805ee 9 // Software is furnished to do so, subject to the following conditions:
svlach 0:70c3bea805ee 10 //
svlach 0:70c3bea805ee 11 // The above copyright notice and this permission notice shall be included
svlach 0:70c3bea805ee 12 // in all copies or substantial portions of the Software.
svlach 0:70c3bea805ee 13 //
svlach 0:70c3bea805ee 14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
svlach 0:70c3bea805ee 15 // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
svlach 0:70c3bea805ee 16 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
svlach 0:70c3bea805ee 17 // IN NO EVENT SHALL DALLAS SEMICONDUCTOR BE LIABLE FOR ANY CLAIM, DAMAGES
svlach 0:70c3bea805ee 18 // OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
svlach 0:70c3bea805ee 19 // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
svlach 0:70c3bea805ee 20 // OTHER DEALINGS IN THE SOFTWARE.
svlach 0:70c3bea805ee 21 //
svlach 0:70c3bea805ee 22 // Except as contained in this notice, the name of Dallas Semiconductor
svlach 0:70c3bea805ee 23 // shall not be used except as stated in the Dallas Semiconductor
svlach 0:70c3bea805ee 24 // Branding Policy.
svlach 0:70c3bea805ee 25 //---------------------------------------------------------------------------
svlach 0:70c3bea805ee 26 //
svlach 0:70c3bea805ee 27 // findtype.c - Test module to find all devices of one type.
svlach 0:70c3bea805ee 28 //
svlach 0:70c3bea805ee 29 // Version: 2.00
svlach 0:70c3bea805ee 30 //
svlach 0:70c3bea805ee 31 //----------------------------------------------------------------------
svlach 0:70c3bea805ee 32 //
svlach 0:70c3bea805ee 33 //
svlach 0:70c3bea805ee 34 #include "./Headers/ownet.h"
svlach 0:70c3bea805ee 35 #include "./Headers/findtype.h"
svlach 0:70c3bea805ee 36
svlach 0:70c3bea805ee 37 //----------------------------------------------------------------------
svlach 0:70c3bea805ee 38 // Search for devices
svlach 0:70c3bea805ee 39 //
svlach 0:70c3bea805ee 40 // 'portnum' - number 0 to MAX_PORTNUM-1. This number is provided to
svlach 0:70c3bea805ee 41 // indicate the symbolic port number.
svlach 0:70c3bea805ee 42 // 'FamilySN' - an array of all the serial numbers with the matching
svlach 0:70c3bea805ee 43 // family code
svlach 0:70c3bea805ee 44 // 'family_code' - the family code of the devices to search for on the
svlach 0:70c3bea805ee 45 // 1-Wire Net
svlach 0:70c3bea805ee 46 // 'MAXDEVICES' - the maximum number of devices to look for with the
svlach 0:70c3bea805ee 47 // family code passed.
svlach 0:70c3bea805ee 48 //
svlach 0:70c3bea805ee 49 // Returns: TRUE(1) success, device type found
svlach 0:70c3bea805ee 50 // FALSE(0) device not found
svlach 0:70c3bea805ee 51 //
svlach 0:70c3bea805ee 52 SMALLINT FindDevices(int portnum, uchar FamilySN[][8], SMALLINT family_code, int MAXDEVICES)
svlach 0:70c3bea805ee 53 {
svlach 0:70c3bea805ee 54 int NumDevices=0;
svlach 0:70c3bea805ee 55
svlach 0:70c3bea805ee 56 // find the devices
svlach 0:70c3bea805ee 57 // set the search to first find that family code
svlach 0:70c3bea805ee 58 owFamilySearchSetup(portnum,family_code);
svlach 0:70c3bea805ee 59
svlach 0:70c3bea805ee 60 // loop to find all of the devices up to MAXDEVICES
svlach 0:70c3bea805ee 61 NumDevices = 0;
svlach 0:70c3bea805ee 62 do
svlach 0:70c3bea805ee 63 {
svlach 0:70c3bea805ee 64 // perform the search
svlach 0:70c3bea805ee 65 if (!owNext(portnum,TRUE, FALSE))
svlach 0:70c3bea805ee 66 break;
svlach 0:70c3bea805ee 67
svlach 0:70c3bea805ee 68 owSerialNum(portnum,FamilySN[NumDevices], TRUE);
svlach 0:70c3bea805ee 69 if ((FamilySN[NumDevices][0] & 0x7F) == (family_code & 0x7F))
svlach 0:70c3bea805ee 70 {
svlach 0:70c3bea805ee 71 NumDevices++;
svlach 0:70c3bea805ee 72 }
svlach 0:70c3bea805ee 73 }
svlach 0:70c3bea805ee 74 while (NumDevices < (MAXDEVICES - 1));
svlach 0:70c3bea805ee 75
svlach 0:70c3bea805ee 76 // check if not at least 1 device
svlach 0:70c3bea805ee 77 return NumDevices;
svlach 0:70c3bea805ee 78 }