1 | void getCalibDataBME680()
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2 | {
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3 | int32_t calib[41];
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4 |
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5 | for(int i = -1; i < 25; i++){ // Kalibrierkoeffizienten ab 0x89
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6 | calib[i] = readBME680(CALIB_ADDRESS_1_BME680 + i);
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7 | }
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8 | for(int i = -1; i < 16; i++){ // Kalibrierkoeffizienten ab 0xE1
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9 | calib[25 + i] = readBME680(CALIB_ADDRESS_2_BME680 + i);
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10 | }
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11 |
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12 | // write temperature compensation parameters
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13 | par_t1 = (uint16_t) (((uint16_t) calib[34] << 8) | calib[33]);
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14 | par_t2 = ( int16_t) ((( int16_t) calib[2] << 8) | calib[1]);
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15 | par_t3 = ( int8_t) (calib[3]);
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16 |
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17 | // write pressure compensation parameters
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18 | par_p1 = (uint16_t) ((calib[6] << 8) | calib[5]);
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19 | par_p2 = (int16_t) ((calib[8] << 8) | calib[7]);
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20 | par_p3 = (int8_t) calib[9];
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21 | par_p4 = (int16_t) ((calib[12] << 8) | calib[11]);
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22 | par_p5 = (int16_t) ((calib[14] << 8) | calib[13]);
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23 | par_p6 = (int8_t) (calib[16]);
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24 | par_p7 = (int8_t) (calib[15]);
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25 | par_p8 = (int16_t) ((calib[20] << 8) | calib[19]);
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26 | par_p9 = (int16_t) ((calib[22] << 8) | calib[21]);
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27 | par_p10 = (uint8_t) (calib[23]);
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28 |
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29 | // write humidity compensation parameters
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30 | par_h1 = (uint16_t) (((uint16_t) calib[27] << 4) | (calib[26] & 0x0F));
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31 | par_h2 = (uint16_t) (((uint16_t) calib[25] << 4) | (calib[26] >> 4));
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32 | par_h3 = (int8_t) calib[28];
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33 | par_h4 = (int8_t) calib[29];
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34 | par_h5 = (int8_t) calib[30];
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35 | par_h6 = (uint8_t) calib[31];
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36 | par_h7 = (int8_t) calib[32];
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37 |
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38 | /* Gas heater related coefficients */
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39 | par_gh1 = (int8_t) calib[37];
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40 | par_gh2 = (int16_t) ((calib[36] << 8) | calib[35]);
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41 | par_gh3 = (int8_t) calib[38];
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42 | res_heat_range = (readBME680(RES_HEAT_RANGE_ADDRESS_BME680) & 0x30) / 16; // 0x02 minus ungenutzte bits
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43 | res_heat_val = (int8_t) readBME680(RES_HEAT_VAL_ADDRESS_BME680); // 0x00 minus ungenutzte bits
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44 | range_sw_err =((int8_t) readBME680(RANGE_SW_ERR_ADDRESS_BME680) & 0xf0) / 16; // 0x04 minus ungenutzte bits
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45 | }
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