Master Transfer Seems To Be Stalled

If an I2C transfer is transmitted correctly but I2C studio gets stuck then it is often an electrical problem of the I2C bus. XL needs to trace its own data to recognize e.g. a stretching slave. But if the termination is too low or the thresholds are bad then the XL board could not “see” its own data which will lead to a “hanging” software. This problem can be solved by a decreasing the termination (I2C Studio: Options->Board) or by changing the thresholds to e.g. 40%/60% (I2C standard is 30%/70%).