UM0580 datasheet(21/24 Pages) STMICROELECTRONICS

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UM0580

Using the STEVAL-IHM021V1 with the STM32 FOC firmware library

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9.2

Hardware requirements

The following items are required to run the STEVAL-IHM021V1 together with the "STM32

FOC firmware library

●

The STEVAL-IHM021V1 board and MB525 board (STM32 evaluation board with MC

connector).

●

A high-voltage insulated AC power supply up to 230 Vac.

●

A J-link programmer (not included in the package).

●

A J-link insulating board (not included in the package).

●

A 3-phase brushless motor with permanent magnet rotor (not included in the package).

●

An insulated oscilloscope (as necessary).

●

An insulated multimeter (as necessary).

9.3

Software requirements

To customize, compile and download the "STM32 FOC firmware library v2.0" motor control

firmware, the IAR tool "EWARM v5.20 (or v5.11)" must be installed. The free 32-k limited

version (referenced as the "KickStart" version) is available for downloading at:

http://supp.iar.com/Download/SW/?item=EWARM-KS32-442A

9.4

Software modifications

The "STM32 FOC firmware library v2.0" is compatible with the L6386 high-side driver. To

make the firmware compatible with the L6390, you must change the polarity of the PWM

driving the low-side transistors.

To do so, Follow these steps.

In "stm32f10x_svpwm_3shunt.c" substitute line 177 with:

TIM1_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_Low;

In "stm32f10x_svpwm_3shunt.c" substitute line 88 with:

#define IDLE_LOW_SIDE_POLARITY_L6390

TIM_OCIdleState_Set

#define LOW_SIDE_POLARITY

IDLE_LOW_SIDE_POLARITY_L6390

In "MC_MotorControl_Layer.c" substitute lines 49 and 50 with:

#define NTC_THRESHOLD (u16) ((225 * (NTC_THRESHOLD_C - 25)) + 10477)

#define NTC_HYSTERIS

(u16) ((225 * (NTC_THRESHOLD_C - NTC_HYSTERIS_C - 25)) + 10477)

In "MC_MotorControl_Layer.c" substitute line 382 with:

return ((u8)(((s16)w_Temp_Average - 10477)/225 + 25));

In "MC_Control_Param.h" set the required temperature threshold and hysteresis with:

#define NTC_THRESHOLD_C

// (°C)

#define NTC_HYSTERIS_C

// Temperature hysteresis (°C)

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