Atmel AVR2070 Bedienungsanleitung PDF herunterladen (Seite 51)

A Anhang

49 /* broadcast process */

50 P R OCESS _ THREA D ( broadcast _ exampl e _proce s s , ev , data )

51 {

52 /* timer struct */

53 static struct etimer send _ t imer ;

54 /* address variable */

55 uip_ i paddr_t addr ;

57 /* process starts here */

58 PRO C ESS_BE G IN ();

60 /* r e gi ster udp connection */

61 si mple _ udp_ regi s ter (& broadcast_conn e c tion , UDP_PORT ,

62 NULL , UDP_PORT ,

63 r e c e i v er );

65 /* loop */

66 while (1) {

67 /* set timer and wait until timer is expired */

68 et i m er_set (& send_timer , SE ND_TIME );

69 PROCES S_W A IT_ E VEN T_UN TIL ( etimer_e x pired (& send_timer ));

71 /* create multicast link */

72 uip_c rea te_ lin k lo c al_ all nod es_ mca s t (& addr );

74 /* send string */

75 simple_ u dp_s e ndto (& broadcast_co n n ection ,

76 " Atmeg a 128 R FA1 _Bro adca st " , 23, & addr );

77 }

79 /* process ends here */

80 PROCE S S_END ();

81 }

82 /* * *** *** ** * ** *** *** ** * ** * ** *** ** * ** * ** *** *** ** * ** *** *** ** * ** *** * */

Listing A.3: Broadcast-Sender unter Contiki 2.5

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Atmel AVR2070 Bedienungsanleitung Seite 51