3.3.19.3 mcFlyI_FlyingStart

C

/* Perform flying start  */
tmcTypes_StdReturn_e  mcFlyI_FlyingStart( tmcFly_Parameters_s * const pParameters,
                                   const float32_t speed, const float32_t commandDirection,
                                   float32_t * const pIdref, float32_t * const pIqref,
                                   bool * const pDutyOverride, int16_t * const pDuty )

Summary

This function performs the Flying Start operation.

Description

This function implements a state machine to manage the flying start process by monitoring rotor speed and applying the appropriate controls to ensure a smooth transition to closed-loop operation. A flying start is used to start a motor that is already spinning, preventing abrupt torque or current spikes.

Precondition

The flying start module must be initialized and enabled.

Parameters


Param	Description
pParameters	A pointer to the flying start module parameter structure.
speed	Current speed value.
commandDirection	Commanded direction value.
pIdref	A pointer to a floating-point variable where the d-axis current reference will be set.
pIqref	A pointer to a floating-point variable where the q-axis current reference will be set.
pDutyOverride	A pointer to a boolean value indicating whether PWM duty cycle override is active.
pDuty	A Pointer to the duty cycle value.

Returns

Returns status of the flying start process:

StdReturn_Progress: Operation in progress
StdReturn_Success: Operation successful
StdReturn_Fail: Operation failed
StdReturn_Complete: Operation completed

Example

// Define the flying start module data structure
tmcFly_Parameters_s pParameters;
 
float32_t direction = 1.0f;
float32_t speed =100.0f;
bool pDutyOverride;
float32_t iqRef, idRef;
int16_t  duty[3];
tmcTypes_StdReturn_e status;

/** Initialize parameters */
status = mcFlyI_FlyingStart(&pParameters, speed, direction, &idRef, &iqRef, duty);

if (status == StdReturn_Complete) {
    // flying start operation is complete
}

Remarks

None.