18.8.1.2.2 Workflow

  1. Configure and enable module. 
    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;
config_i2c_slave.buffer_timeout = 1000;
    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);
  2. Create variable to hold transfer direction. 
    enum i2c_slave_direction dir;
  3. Create packet variable to transfer. 
    struct i2c_slave_packet packet = {
    .data_length = DATA_LENGTH,
    .data        = write_buffer,
};