Regarding HPI, we cannot discuss this on the community. Please contact you local FAE for HPI related documentation.
HPI Interface not open，and then I deleted the hpi code and try to use I2c connect directly. But I got nothing.
In my PC，I use “CyI2cWrite” to send data。
And cypd3125 in cy4531, I use callback in "i2c_scb_init" to get data.
And I set breakpoint in i2c_command, then use cyi2cwrite to send data, but not stoped. (I call i2c_init in main function).