UM0324 datasheet(53/105 Pages) STMICROELECTRONICS

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UM0324

Library functions

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SVPWM_IcsInit

SVPWM_IcsCurrentReadingCalibration

Synopsis

void SVPWM_IcsInit(void);

Description

The purpose of this function is to set-up microcontroller peripherals for

performing ICS reading and center aligned PWM generation.

The function initializes EIC, ADC, GPIO, and PWM peripherals.

In particular ADC and PWM peripherals are configured to perform one

injected chain of two A/D conversions every time PWM registers are

updated (event called U event).

Refer to Section 4.3.3 for further information on A/D conversion

triggering in ICS configuration.

Input

None.

Returns

None.

Note

It must be called at main level.

Functions called Standard library:

MRCC_PeripheralClockConfig, GPIO_Init, EIC_IRQInit,

EIC_IRQCmd, PWM_DeInit, PWM_StructInit, PWM_Init,

PWM_TRGOSelection, PWM_ClearFlag, PWM_ITConfig,

PWM_ResetCounter, ADC_StructInit, ADC_Init, ADC_Cmd,

ADC_StartCalibration, ADC_ConversionCmd, PWM_Cmd.

Motor control library:

SVPWM_IcsCurrentReadingCalibration

Synopsis

void SVPWM_IcsCurrentReadingCalibration(void);

Description

The purpose of this function is to store the two analog voltages

corresponding to zero current values for compensating the offset

introduced by both ICS and amplification network.

Input

None.

Returns

None.

Note

The function must be called before PWM outputs are enabled so that

current flowing through inverter legs is zero. When using the STR750

MC Kit, ICS sensors must be supplied before the control board

(MB469B). This way, the current sensing conditioning network can

reach steady state before performing calibration.

Functions called Standard Library:

ADC_GetFlagStatus, ADC_ConversionCmd,

ADC_GetConversionValue

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