TI中文支持网//! \brief Gets the flux value in per unit (pu), IQ24.
//! \details The estimator continuously calculates the flux linkage between the rotor and stator, which is the
//! portion of the flux that produces torque. This function returns the flux linkage, ignoring the
//! number of turns, between the rotor and stator coils, in per units.
//! This functions returns a precise value only after the motor has been identified, which can be//! checked by the following code example:
//! \code
//! if(EST_isMotorIdentified(handle))
//! {
//! // once the motor has been identified, get the flux
//! _iq Flux_pu = EST_getFlux_pu(handle);
//! }
//! \endcode
//! \details For some applications it is important to get this value in per units, since it is much faster to
//! process especially when the architecture of the microcontroller does not have a floating point
//! processing unit. In order to translate this per units value into a scaled value in _iq, it is
//! important to consider a scale factor to convert this flux in per units to the required units.
//! The following example shows how to scale a per units value to Wb and V/Hz in IQ for faster
//! processing:
//! \code
//! float_t FullScaleFlux = (USER_IQ_FULL_SCALE_VOLTAGE_V/(float_t)USER_EST_FREQ_Hz);
//! float_t maxFlux = (USER_MOTOR_RATED_FLUX*((USER_MOTOR_TYPE==MOTOR_Type_Induction)?0.05:0.7));
//! float_t lShift = -ceil(log(FullScaleFlux/maxFlux)/log(2.0));
//! _iq gFlux_pu_to_Wb_sf = _IQ(FullScaleFlux/(2.0*MATH_PI)*pow(2.0,lShift));
//! _iq gFlux_pu_to_VpHz_sf = _IQ(FullScaleFlux*pow(2.0,lShift));
//! // The value of gFlux_pu_to_Wb_sf and gFlux_pu_to_VpHz_sf can be calculated once at the beginning of the//! // code and stored as global variables
//!
//! _iq Flux_Wb;
//! _iq Flux_VpHz;
//! _iq Flux_pu = EST_getFlux_pu(handle);
//!
//! Flux_Wb = _IQmpy(Flux_pu, gFlux_pu_to_Wb_sf);
//! Flux_VpHz = _IQmpy(Flux_pu, gFlux_pu_to_VpHz_sf);
//! \endcode
//! \param[in] handle The estimator (EST) handle
//! \return The flux value, pu
extern _iq EST_getFlux_pu(EST_Handle handle);
这个函数能不能详细讲解一下
Johnson Chen1：
所有和EST相关的函数都是在芯片的ROM里面，功能说明请查看InsatSPIN 的TRM
