Problem BHI160b Shuttle Board with STM32

[malekattia]

I am working on the BHI160B shuttle board connected to an STM32F411.I am working on this example(BHI160B_ReferenceCode) I have integrated the library into my STM project. The next step was to modify the read/write operations in the bhy_support.c driver file as follows:

int8_t sensor_i2c_write(uint8_t addr, uint8_t reg, uint8_t *p_buf, uint16_t size){
	HAL_I2C_Mem_Write(&hi2c1, (uint16_t) addr, (uint16_t) reg, I2C_MEMADD_SIZE_8BIT, p_buf, size,HAL_MAX_DELAY);
}
int8_t sensor_i2c_read(uint8_t addr, uint8_t reg, uint8_t *p_buf, uint16_t size){
	HAL_I2C_Mem_Read(&hi2c1, (uint16_t) addr, (uint16_t) reg,I2C_MEMADD_SIZE_8BIT,p_buf, size, HAL_MAX_DELAY);

}

I connected the Shuttle Board to my NUCLEO board like this:

___J1___|___NUCLEO___
   1/2  |    3.3V
    3   |    GND
   17   |    PB7 -> I2C1_SCL
   18   |    PB6 -> I2C1_SDA ​

The problem occurs during initialization, specifically within the "bhy_init" function, when attempting to read (BHY_BUS_READ_FUNC) the BHY_I2C_REG_PRODUCT_ID_ADDR register (0x90). It gets stuck in the HAL function (HAL_StatusTypeDef I2C_WaitOnMasterAddressFlagUntilTimeout).

BHY_RETURN_FUNCTION_TYPE bhy_init(struct bhy_t *bhy)
{
    /* variable used for return the status of communication result*/
    BHY_RETURN_FUNCTION_TYPE com_rslt = BHY_COMM_RES;
    u8 v_data_u8 = BHY_INIT_VALUE;
    /* assign bhy ptr */
    p_bhy = bhy;
    com_rslt =
    p_bhy->BHY_BUS_READ_FUNC(p_bhy->device_addr,
    BHY_I2C_REG_PRODUCT_ID_ADDR,
    &v_data_u8, BHY_GEN_READ_WRITE_LENGTH);
    /* read product Id */
    p_bhy->product_id = v_data_u8;
    return com_rslt;
}

[BSTRobin]

Hi malekattia,

Pin 15(SA_GPIO7) of BHI160B shuttle board 2.0 should be connected to GND or VDDIO to determine whether the I2C device address of BHI160B is 0x28 or 0x29.

I upload BHI160B example code on STM32F401 for your reference. You can migrate it to your STM32 and run it.

[malekattia]

Thank you, BSTRobin, for your response.
I've read the I2C address of my BHI160B shuttle board 3.0 is 0x29 ( my sensor is version 3, I connected it using GPIO 4 https://www.bosch-sensortec.com/media/boschsensortec/downloads/shuttle_board_flyer/application_board...

 but the same issue still persists.
The problem occurs during initialization, specifically within the "bhy_init" function, when attempting to read (BHY_BUS_READ_FUNC) the BHY_I2C_REG_PRODUCT_ID_ADDR register (0x90). It gets stuck in the HAL function (HAL_StatusTypeDef I2C_WaitOnMasterAddressFlagUntilTimeout).

[BSTRobin]

Hi malekattia,

You can strictly refer to previous attached example code as it also run on STM32F4.