Having Wire.begin() in the constructor causes some platforms (adafruit feather m0 logger) to freeze

[GoonieG]

I was having an issue with the example code (accelGyro) not running, and freezing com ports, etc. I traced the issue to having
Wire.begin() in the class constructor: DFRobot_BMI160::DFRobot_BMI160()
The feather m0 seems to lock up, especially when instantiating the:
DFRobot_BMI160 bmi160;

As a global object, before the void setup() function.

The solution was to move Wire.begin() to the beginning of:
int8_t DFRobot_BMI160::I2cInit(int8_t i2c_addr)

My Code changes were as follows (in DFRobot_BMI160.cpp)
DFRobot_BMI160::DFRobot_BMI160()
{
// Wire.begin();

Obmi160=(struct bmi160Dev *)malloc(sizeof(struct bmi160Dev));
//Obmi160->id = BMI160_I2C_ADDR;
//Obmi160->interface = BMI160_I2C_INTF;
Oaccel= (struct bmi160SensorData*)malloc(sizeof(struct bmi160SensorData));
Ogyro = (struct bmi160SensorData*)malloc(sizeof(struct bmi160SensorData));
}

int8_t DFRobot_BMI160::I2cInit(int8_t i2c_addr)
{
Wire.begin();

Obmi160->id = i2c_addr;
Obmi160->interface = BMI160_I2C_INTF;
return DFRobot_BMI160::I2cInit(Obmi160);
}

[krisstakos]

Thanks, that also fixes the i2c init failure for bluepill(stm32)