Implementation of 1-Wire with added Alarm Search Functionality

Dependents:   Max32630_One_Wire_Interface

RomId/RomId.h

Committer:
mfruge
Date:
2019-08-13
Revision:
142:85b71cfd617e
Parent:
139:f0e0a7976846

File content as of revision 142:85b71cfd617e:

/******************************************************************//**
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#ifndef OneWire_RomId
#define OneWire_RomId

#include "Utilities/array.h"
#include "Utilities/crc.h"

namespace OneWire
{
    /// Standard container for a 1-Wire ROM ID.
    struct RomId
    {
        typedef array<uint8_t, 8> Buffer;
    
        /// Direct access to the buffer.
        Buffer buffer;
        /// @}

        /// @{
        /// Access the Family Code byte.
        uint8_t & familyCode() { return buffer.front(); }
        const uint8_t & familyCode() const { return buffer.front(); }
        /// @}

        /// @{
        /// Access the CRC8 byte.
        uint8_t & crc8() { return buffer.back(); }
        const uint8_t & crc8() const { return buffer.back(); }
        /// @}

        /// Check if the ROM ID is valid (Family Code and CRC8 are both valid).
        /// @returns True if the ROM ID is valid.
        bool valid() const
        {
            return crc::calculateCrc8(buffer.data(), buffer.size() - 1, 0x00) == crc8();
        }
        
        bool operator==(const RomId & rhs) const { return (this->buffer == rhs.buffer); }
        bool operator!=(const RomId & rhs) const { return !operator==(rhs); }
    };
}

#endif