Implementation of 1-Wire with added Alarm Search Functionality
Dependents: Max32630_One_Wire_Interface
OneWire_Masters/OneWireMastersShared.cpp
- Committer:
- j3
- Date:
- 2016-02-09
- Revision:
- 5:ce108eeb878d
File content as of revision 5:ce108eeb878d:
/******************************************************************//** * @file OneWireMastersShared.cpp * * @author Justin Jordan * * @version 0.0.0 * * Started: 08FEB16 * * Updated: * * @brief Source file for functions shared between masters, that should * be implemented by each master, only one implementation *********************************************************************** * Copyright (C) 2016 Maxim Integrated Products, Inc., 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 MAXIM INTEGRATED 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 Maxim Integrated * Products, Inc. shall not be used except as stated in the Maxim Integrated * Products, Inc. Branding Policy. * * The mere transfer of this software does not imply any licenses * of trade secrets, proprietary technology, copyrights, patents, * trademarks, maskwork rights, or any other form of intellectual * property whatsoever. Maxim Integrated Products, Inc. retains all * ownership rights. **********************************************************************/ #include "OneWireMastersShared.h" //********************************************************************* uint8_t OWCalc_crc8(uint8_t data, uint8_t crc8) { unsigned char i; // See Application Note 27 crc8 = crc8 ^ data; for (i = 0; i < 8; ++i) { if (crc8 & 1) { crc8 = (crc8 >> 1) ^ 0x8c; } else { crc8 = (crc8 >> 1); } } return crc8; }