SPI clock issue on IoT connector


I am basically trying to communicate with BMI160 chip to read accelerometer values.
But the problem is I do not see SPI clock coming from the master. Clock is constantly 1.8Volts and it doesn’t toggle at all. Can somebody please tell me what could be going wrong here?


It sounds like you have built an IoT card that contains a Bosch BMI160 IMU. Are you using 4 wire SPI to connect it? Have you connected the chip-select line properly? Are you using the bmi160 kernel driver in the mangOH source tree to communicate with the bmi160 or are you using different software? If different, what are you using? Have you tried performing a loopback test with the SPI interface on the IoT card to see if you can get that to work?