Gazell pairing library Host example [Projects]

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Gazell Link Layer Host using the Gazell Pairing Library for adding dynamic pairing functionality.

The example is monitoring for pairing requests as well as normal user data. Pairing will be granted to any device sending a pairing request. If user data is received the first payload byte (byte 0) is written to P0.

The project Gazell pairing library Device example can be used as a counterpart for transmitting data.

Functions
void	main (void)

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Function Documentation

void main

(

void

)

Definition at line 43 of file main.c.

{
  uint8_t payload[GZLL_MAX_PAYLOAD_LENGTH];

  mcu_init();
  gzll_init();
  gzp_init();
  gzp_pairing_enable(true);

  // Open pipe 2. (Pipe 0 and 1 are reserved by pairing library).
  gzll_set_param(GZLL_PARAM_RX_PIPES, gzll_get_param(GZLL_PARAM_RX_PIPES) | (1 << 2));
  
  // Set P0 as output
  P0DIR = 0;                                          

  EA = 1;

  // Enter host mode (start monitoring for data)
  gzll_rx_start();                                          
  
  for(;;)
  { 
    // If gzpair_host_execute() returns true, a pairing request has been received
    gzp_host_execute();

    // If Host ID request received
    if(gzp_id_req_received())
    {
      // Always grant request
      gzp_id_req_grant();
    }
   
    // If any data received (plaintext on pipe 2 or encrypted through Gazell pairing library)
    if((gzll_get_rx_data_ready_pipe_number() == 2) || (gzp_crypt_user_data_received()))
    {
      // Plaintext data received? 
      if(gzll_rx_fifo_read(payload, NULL, NULL))
      {
        // Write received payload[0] to port 0
        P0 = payload[0];
      }
      else
      {
        // Read data from Gazell pairing library
        gzp_crypt_user_data_read(payload, NULL);
        // Write received payload[0] to port 0
        P0 = payload[0];
      }
    }   
  }          
}