MKL16 test IIC demo ，IIC SDA signal abnormal when an ACK signal is sent to the bus on the following receiving byte.
please look at the picture.
Sorry for the late response. From the picture you attached it seems OK for the I2C communication. Does the KL16 working as master or slave? The ACK had been issued on the ninth clock that means the I2C communication had been set up. Have you tried with the I2C driver code from NXP?
Retrieving data ...