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/AliOS-Things-master/hardware/board/haaseduk1/drivers/sensor/
A Ddrv_baro_qst_qmp6988.h111 float a1, a2, bt1, bt2, bp1, b11, bp2, b12, b21, bp3; member
117 QMP6988_S64_t bt1, bt2, bp1, b11, bp2, b12, b21, bp3; member
A Ddrv_baro_qst_qmp6988.c149 qmp6988->ik.bt2 = 329854L * (QMP6988_S64_t)qmp6988->qmp6988_cali.COE_bt2 + 108083093L; // 34Q38 in qmp6988_get_calibration_data()
170 qmp6988->fk.bt2 = Conv_A_S[3][0] + Conv_A_S[3][1] * qmp6988->qmp6988_cali.COE_bt2 / 32767.0f; in qmp6988_get_calibration_data()
213 wk2 = ((QMP6988_S64_t)ik->bt2 * (QMP6988_S64_t)tx) >> 1; // 34Q38+16-1=49 (48Q37) in qmp6988_get_pressure_02e()
337 float a1, a2, bt1, bt2, bp1, b11, bp2, b12, b21, bp3; in qmp6988_calc_pressure() local
394 bt2 = qmp6988->fk.bt2; in qmp6988_calc_pressure()
406 …qmp6988->pressure = b00 + (bt1 * Tr) + (bp1 * P_raw) + (b11 * Tr) *P_raw + (bt2 * Tr) *Tr + (bp2 *… in qmp6988_calc_pressure()

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