mbed_example / Mbed 2 deprecated UDPSocket_HelloWorld

UDP Socket Hello World with Ethernet

Dependencies:   EthernetInterface mbed-rtos mbed

Fork of UDPSocket_HelloWorld by Mbed

main.cpp@10:1992d8ec32d2, 2014-05-14 (annotated)

Committer:
Kojto
Date:
Wed May 14 15:32:24 2014 +0000
Revision:
10:1992d8ec32d2
Parent:
7:dedf5dde9798 
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Who changed what in which revision?

UserRevisionLine numberNew contents of line
donatien 1:8e1d4987eb90 1 #include "mbed.h"
donatien 1:8e1d4987eb90 2 #include "EthernetInterface.h"
emilmont 6:25aad2d88749 3
emilmont 6:25aad2d88749 4 int main() {
donatien 1:8e1d4987eb90 5 EthernetInterface eth;
donatien 1:8e1d4987eb90 6 eth.init(); //Use DHCP
donatien 1:8e1d4987eb90 7 eth.connect();
donatien 1:8e1d4987eb90 8
donatien 1:8e1d4987eb90 9 UDPSocket sock;
emilmont 6:25aad2d88749 10 sock.init();
donatien 1:8e1d4987eb90 11
emilmont 7:dedf5dde9798 12 Endpoint nist;
emilmont 7:dedf5dde9798 13 nist.set_address("utcnist.colorado.edu", 37);
emilmont 7:dedf5dde9798 14
emilmont 6:25aad2d88749 15 char out_buffer[] = "plop"; // Does not matter
emilmont 7:dedf5dde9798 16 sock.sendTo(nist, out_buffer, sizeof(out_buffer));
donatien 1:8e1d4987eb90 17
emilmont 6:25aad2d88749 18 char in_buffer[4];
emilmont 7:dedf5dde9798 19 int n = sock.receiveFrom(nist, in_buffer, sizeof(in_buffer));
donatien 1:8e1d4987eb90 20
emilmont 6:25aad2d88749 21 unsigned int timeRes = ntohl( *((unsigned int*)in_buffer));
emilmont 7:dedf5dde9798 22 printf("Received %d bytes from server %s on port %d: %u seconds since 1/01/1900 00:00 GMT\n", n, nist.get_address(), nist.get_port(), timeRes);
emilmont 6:25aad2d88749 23
emilmont 6:25aad2d88749 24 sock.close();
emilmont 6:25aad2d88749 25
emilmont 6:25aad2d88749 26 eth.disconnect();
emilmont 6:25aad2d88749 27 while(1) {}
donatien 1:8e1d4987eb90 28 }