18.8.2.2.2 Workflow

configure_i2c_slave();

1. Create and initialize configuration structure.

   struct i2c_slave_config config_i2c_slave;
   i2c_slave_get_config_defaults(&config_i2c_slave);
   

2. Change address and address mode settings in the configuration.

   config_i2c_slave.address      = SLAVE_ADDRESS;
   config_i2c_slave.address_mode = I2C_SLAVE_ADDRESS_MODE_MASK;
   

3. Initialize the module with the set configurations.

   i2c_slave_init(&i2c_slave_instance, CONF_I2C_SLAVE_MODULE, &config_i2c_slave);
   

4. Enable the module.

   i2c_slave_enable(&i2c_slave_instance);
   

configure_i2c_slave_callbacks();

1. Register and enable callbacks for read and write requests from master.

   i2c_slave_register_callback(&i2c_slave_instance, i2c_read_request_callback,
           I2C_SLAVE_CALLBACK_READ_REQUEST);
   i2c_slave_enable_callback(&i2c_slave_instance,
           I2C_SLAVE_CALLBACK_READ_REQUEST);
   
   i2c_slave_register_callback(&i2c_slave_instance, i2c_write_request_callback,
           I2C_SLAVE_CALLBACK_WRITE_REQUEST);
   i2c_slave_enable_callback(&i2c_slave_instance,
           I2C_SLAVE_CALLBACK_WRITE_REQUEST);