TI中文支持网在motorWare 例程中，模块void updateGlobalVariables_motor(CTRL_Handle handle, ST_Handle sthandle)在fpu32和定点方式先
定义的几个float 参数：
在定点模式下为：
gMotorVars.MagnCurr_A = EST_getIdRated(obj->estHandle);
// get the rotor resistance
gMotorVars.Rr_Ohm = EST_getRr_Ohm(obj->estHandle);
// get the stator resistance
gMotorVars.Rs_Ohm = EST_getRs_Ohm(obj->estHandle);
// get the stator inductance in the direct coordinate direction
gMotorVars.Lsd_H = EST_getLs_d_H(obj->estHandle);
// get the stator inductance in the quadrature coordinate direction
gMotorVars.Lsq_H = EST_getLs_q_H(obj->estHandle);
// get the flux in V/Hz in floating point
gMotorVars.Flux_VpHz = EST_getFlux_VpHz(obj->estHandle);
浮点模式下为：
int32_t tmp;
tmp = EST_getIdRated(obj->estHandle);
gMotorVars.MagnCurr_A = *((float_t *)&tmp);
// get the rotor resistance
tmp = EST_getRr_Ohm(obj->estHandle);
gMotorVars.Rr_Ohm = *((float_t *)&tmp);
// get the stator resistance
tmp = EST_getRs_Ohm(obj->estHandle);
gMotorVars.Rs_Ohm = *((float_t *)&tmp);
// get the stator inductance in the direct coordinate direction
tmp = EST_getLs_d_H(obj->estHandle);
gMotorVars.Lsd_H = *((float_t *)&tmp);
// get the stator inductance in the quadrature coordinate direction
tmp = EST_getLs_q_H(obj->estHandle);
gMotorVars.Lsq_H = *((float_t *)&tmp);
// get the flux in V/Hz in floating point
tmp = EST_getFlux_VpHz(obj->estHandle);
gMotorVars.Flux_VpHz = *((float_t *)&tmp);
比如
tmp = EST_getIdRated(obj->estHandle);
gMotorVars.MagnCurr_A = *((float_t *)&tmp);
EST_getIdRated(obj->estHandle)、MagnCurr_A都为float_t，为这种转换的原因：
谢谢！
Young Hu：Since the F2806x has an FPU, if you enable the FPU, it treats the floating point variables differently than our IQMath ROM library is expecting them, hence we have to "trick" the compiler into keeping them in the correct format. This will not be "fixed" on existing devices.
