RARP Library Description


The RARP library contains support for sending RARP requests and handling the RARP answer packet. (Enhanced Network Stack Library required)


Using the Library

The library is used by calling rarp_send(&callback).The callback function will receive the IP address as an argument. Example:

unsigned char myip[4];

void callback(unsigned long ip)
{
  myip[0] = (ip >> 24L) & 0xff;
  myip[1] = (ip >> 16L) & 0xff;
  myip[2] = (ip >> 8L) & 0xff;
  myip[3] = ip & 0xff;
  have_ip = 1;
}

  ...
  have_ip = 0;

  rarp_send(&callback);
  task_sleep(0, 2500);
  if (have_ip)
    printf("Received IP %bu.%bu.%bu.%bu\n", myip[0], myip[1], myip[2], myip[3]);
  else
    rarp_stop();
      

RARP Library Sample Application

The RARP sample application registers a callback and performs a RARP request.

Download


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