Function owb_read_rom

modules/drivers/onewire/esp/owb.c:273–317

}

owb_status owb_read_rom(const OneWireBus * bus, OneWireBus_ROMCode *rom_code)
{
    owb_status status;

    memset(rom_code, 0, sizeof(OneWireBus_ROMCode));

    if(!bus || !rom_code)
    {
        status = OWB_STATUS_PARAMETER_NULL;
    } else if (!_is_init(bus))
    {
        status = OWB_STATUS_NOT_INITIALIZED;
    } else
    {
        bool is_present;
        bus->driver->reset(bus, &is_present);
        if (is_present)
        {
            uint8_t value = OWB_ROM_READ;
            bus->driver->write_bits(bus, value, 8);
            owb_read_bytes(bus, rom_code->bytes, sizeof(OneWireBus_ROMCode));

            if (bus->use_crc)
            {
                if (owb_crc8_bytes(0, rom_code->bytes, sizeof(OneWireBus_ROMCode)) != 0)
                {
                    memset(rom_code->bytes, 0, sizeof(OneWireBus_ROMCode));
                    status = OWB_STATUS_CRC_FAILED;
                } else
                {
                    status = OWB_STATUS_OK;
                }
            } else
            {
                status = OWB_STATUS_OK;
            }
        }
        else
        {
            status = OWB_STATUS_DEVICE_NOT_RESPONDING;
        }
    }

    return status;
}

owb_status owb_verify_rom(const OneWireBus * bus, OneWireBus_ROMCode rom_code, bool* is_present)
{