Hi,
Currently, we are working on the IO-EXPANDER (PCA9505DGGY) via I2C communication. We are using Standard mode (100 kHz).
Whenever we try to communicate with the slave device, the SDA line remains idle, and I can only see three clock pulses on the SCL line at all times. Please refer to the attached image for the SCL reference.
Note: In the image, the line markup name is incorrect—it is labeled as SDA, but it is actually SCL.
