// Encode value from 0-39 with some scalar/offset/etc

        uint32_t batt_enc = adc_get_vbatt();  // Hopefully in decivolts

        if(batt_enc > 39)

            batt_enc = 39;

        // Encode speed in knots from 0-82 to 0-41

        uint32_t speed_enc = gps_getdata()->speed / 2;

        if(speed_enc > 41)

            speed_enc = 41;

        // Encode GPS status

        // We always have a fix if we got to this point; and I think we zero out that we had a fix when turning the GPS off before entering this function

//        if(gps_getdata()->fixtype == 2 || gps_getdata()->fixtype == 3)

            gps_status = 0b1;

        if(gps_getdata()->sats_in_solution > 5)

            gps_sats = 0b1;

        uint32_t engdata = gps_sats + 2 * (gps_status + 2 * (speed_enc + 42 * (batt_enc + 40 * temp_enc)));

        ////////////////////////////////////////////

    HAL_GPIO_WritePin(OSC_NOTEN, 0);

    HAL_GPIO_WritePin(TCXO_EN, 1);

    HAL_Delay(100);

    // Bring up the chip

    i2c_init();

    si5351_init(i2c_get(), SI5351_CRYSTAL_LOAD_8PF, 0);

    si5351_set_correction(0);

    //si5351_set_pll(SI5351_PLL_FIXED, SI5351_PLLA);

    //si5351_set_ms_source(SI5351_CLK0, SI5351_PLLA);

    si5351_set_freq(WSPR_DEFAULT_FREQ * 100, 0, SI5351_CLK0);

//    si5351_drive_strength(SI5351_CLK0, SI5351_DRIVE_8MA); // Set for max power if desired (8ma max)

    si5351_output_enable(SI5351_CLK0, 1);

    //si5351_pll_reset(SI5351_PLLA);

    // Make sure the other outputs of the SI5351 are disabled

    si5351_output_enable(SI5351_CLK1, 0); // Disable the clock initially

    si5351_output_enable(SI5351_CLK2, 0); // Disable the clock initially

    // disable clock powers

    si5351_set_clock_pwr(SI5351_CLK1, 0);

    si5351_set_clock_pwr(SI5351_CLK2, 0);