ST Nucleo G431RB

chip:stm32, chip:stm32g4, chip:stm32g431

The Nucleo G431RB is a member of the Nucleo-64 board family.

Configurations

ihm16m1_f32 and ihm16m1_b16:

These examples are dedicated for the X-NUCLEO-IHM16M1 expansion board based on STSPIN830 driver for three-phase brushless DC motors.

X-NUCLEO-IHM16M1 must be configured to work with FOC and 3-shunt resistors. See ST documentation for details.

Pin configuration for the X-NUCLEO-IHM16M1 (TIM1 configuration):

+------------------------+------------------------+-----------------+ | Board Function | Chip Function | Chip Pin Number | +========================+========================+=================+ | Phase U high | TIM1_CH1 | PA8 | +------------------------+------------------------+-----------------+ | Phase U enable | GPIO_PB13 | PB13 | +------------------------+------------------------+-----------------+ | Phase V high | TIM1_CH2 | PA9 | +------------------------+------------------------+-----------------+ | Phase V enable | GPIO_PB14 | PB14 | +------------------------+------------------------+-----------------+ | Phase W high | TIM1_CH3 | PA10 | +------------------------+------------------------+-----------------+ | Phase W enable | GPIO_PB15 | PB15 | +------------------------+------------------------+-----------------+ | EN_FAULT | GPIO_PB12 | PB12 | +------------------------+------------------------+-----------------+ | Current U | GPIO_ADC1_IN2 | PA1 | +------------------------+------------------------+-----------------+ | Current V | GPIO_ADC1_IN12 | PB1 | +------------------------+------------------------+-----------------+ | Current W | GPIO_ADC1_IN15 | PB0 | +------------------------+------------------------+-----------------+ | Temperature | ? | PC4 | +------------------------+------------------------+-----------------+ | VBUS BEMF1 BEMF2 BEMF3 | GPIO_ADC1_IN1 NU NU | PA0 | | LED +3V3 (CN7_16) GND | (NU) | | | (CN7_20) GPIO_BEMF | | | | ENCO_A/HALL_H1 | (NU) | | | ENCO_B/HALL_H2 | | | | ENCO_Z/HALL_H3 GPIO1 | (NU) (NU) (NU) (NU) | | | GPIO2 GPIO3 CPOUT | (NU) | | | BKIN1 | | | +------------------------+------------------------+-----------------+ | POT CURR_REF DAC | GPIO_ADC1_IN8 (NU) | PC2 | | | (NU) | | +------------------------+------------------------+-----------------+

Current shunt resistance = 0.33 Current sense gain = -1.53 (inverted current) Vbus sense gain = 9.31k/(9.31k+169k) = 0.0522124390107 Vbus min = 7V Vbus max = 45V Iout max = 1.5A RMS

IPHASE_RATIO = 1/(R_shunt*gain) = -1.98 VBUS_RATIO = 1/VBUS_gain = 16

For now only 3-shunt resistors configuration is supported.