When starting I2C, SCL and SDA go low at the same time.

[hiro_yamamoto]

I am doing I2C with MKL03Z32CAF4. However, when starting I2C, SCL and SDA go from High to Low at the same time, so I feel that the start condition is not met. Therefore, the slave is not released and ACK is not returned.
Please let me know if you know of a solution to this problem.

[RaRo]

Hello @hiro_yamamoto,

Could you please try out the I2C SDK's examples?

Also, just for double check, could you please check that you placed correctly the pull-up resistors in SDA and SCL lines?

We attach you the I2C specification and user manual, it might be useful.

Best regards, Raul.