i follow the standard i2c protocol to communicate with cpt112s but i don't get ack on i2c. the communication start when INT pin goes low. my i2c communication code below attached. please help me.
i didn't able find slave address in data sheet.
The address could be customized.
I suggest you try to use the Xpress configurator in Simplicity Studio to get the default slave address.
If you did not customized the CPT112S device, I think the address is 0xE0.
My views are my own and do not necessarily represent the views of Silicon Labs
what about my i2c communication code?
I don't know which device you are using as the I2C bus host to communicate with CPT112S, so it is hard for me to add any comment on it.
If you have a EFM8 STK board from Silabs, you could see there is some example code (in simplicity studio) that used to demo the CPT112S function test.
Thank you @delu.