AN3165 datasheet(22/31 Pages) STMICROELECTRONICS

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Integration principles and description

AN3165

22/31

Doc ID 17180 Rev 1

#define PFC_ENABLE

When this function is enabled, the built firmware will be the integration between the dual

FOC MC and the digital PFC.

4.3.1

Firmware modifications to resolve conflicts between peripherals

The following is the code to resolve the conflicts outlined in Section 4.2.2, and demonstrates

how the dual FOC MC part reads the bus voltages by means of the PFC part.

In the "stm32f10x_svpwm_1shunt.c" module:

void SVPWMGetBusSampling(void)

{

...

pMotor = _GET_MOTOR_POINTER(MAIN_MOTOR);

#ifndef PFC_ENABLE

pMotor->pPowerStage_Vars->h_ADCBusvolt =

ADC_GetInjectedConversionValue(pMotor-

>pBusVoltageADC,ADC_InjectedChannel_1);

#else

pMotor->pPowerStage_Vars->h_ADCBusvolt = (Get_Vdc_main() << 3);

//to fit ADC injected configuration

#endif

...

pMotor = _GET_MOTOR_POINTER(SUB_MOTOR);

#ifndef PFC_ENABLE

pMotor->pPowerStage_Vars->h_ADCBusvolt =

ADC_GetInjectedConversionValue(pMotor-

>pBusVoltageADC,ADC_InjectedChannel_1);

//pMotor->pPowerStage_Vars->h_ADCTemp

ADC_GetConversionValue(pMotor->pTemperatureADC)>>1;

#else

pMotor->pPowerStage_Vars->h_ADCBusvolt = (Get_Vdc_sub() << 3);

//to fit ADC injected configuration

#endif

...

}

Note:

The function "Get_Vdc_main()" exports the converted VDC value, which is also the value of

the main motor bus voltage. The function "Get_Vdc_sub()" exports the converted value of

the sub-motor bus voltage. Both are managed through the PFC part.

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