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    uint8_t subzero, cel, cel_frac_bits;
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    uint8_t subzero, cel, cel_frac_bits;
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    Timebase_Init();
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    Timebase_Init();
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    Serial_Init();
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    Serial_Init();
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    sei();
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    sei();
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    // set the clock speed to 8MHz
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    // set the clock prescaler. First write CLKPCE to enable setting of clock the
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    // next four instructions.
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    CLKPR=(1<<CLKPCE);
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    CLKPR=0; // 8 MHZ
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    printf( "\nDS18X20 1-Wire-Reader\n" );
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    printf( "\nDS18X20 1-Wire-Reader\n" );
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    printf( "-----------------------" );
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    printf( "-----------------------" );
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    nSensors = search_sensors();
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    nSensors = search_sensors();
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    printf( "%i DS18X20 Sensor(s) available:\n", (int) nSensors );
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    printf( "%i DS18X20 Sensor(s) available:\n", (int) nSensors );