Plymouth ELEC351 Group T / Mbed OS ELEC351_Group_T

Fork of ELEC351 by Plymouth ELEC351 Group T

Committer:
thomasmorris
Date:
Sun Jan 07 13:32:54 2018 +0000
Revision:
35:26b0a9b55d82
Child:
36:a0098306fc58
Working Networking

Who changed what in which revision?

UserRevisionLine numberNew contents of line
thomasmorris 35:26b0a9b55d82 1 #include "NETWORK.hpp"
thomasmorris 35:26b0a9b55d82 2
thomasmorris 35:26b0a9b55d82 3 AnalogIn ldr(PA_0);
thomasmorris 35:26b0a9b55d82 4
thomasmorris 35:26b0a9b55d82 5 //Now setup a web server
thomasmorris 35:26b0a9b55d82 6 TCPServer srv; //TCP/IP Server
thomasmorris 35:26b0a9b55d82 7 TCPSocket clt_sock; //Socket for communication
thomasmorris 35:26b0a9b55d82 8 SocketAddress clt_addr; //Address of incoming connection
thomasmorris 35:26b0a9b55d82 9
thomasmorris 35:26b0a9b55d82 10
thomasmorris 35:26b0a9b55d82 11 void Network_Init()
thomasmorris 35:26b0a9b55d82 12 {
thomasmorris 35:26b0a9b55d82 13 printf("Basic HTTP server example\n");
thomasmorris 35:26b0a9b55d82 14 //Configure an ethernet connection
thomasmorris 35:26b0a9b55d82 15 EthernetInterface eth;
thomasmorris 35:26b0a9b55d82 16 eth.set_network(IP, NETMASK, GATEWAY);
thomasmorris 35:26b0a9b55d82 17 eth.connect();
thomasmorris 35:26b0a9b55d82 18 printf("The target IP address is '%s'\n", eth.get_ip_address());
thomasmorris 35:26b0a9b55d82 19 //t1.start(Network_Thread);
thomasmorris 35:26b0a9b55d82 20 /* Open the server on ethernet stack */
thomasmorris 35:26b0a9b55d82 21 srv.open(&eth);
thomasmorris 35:26b0a9b55d82 22
thomasmorris 35:26b0a9b55d82 23 /* Bind the HTTP port (TCP 80) to the server */
thomasmorris 35:26b0a9b55d82 24 srv.bind(eth.get_ip_address(), 80);
thomasmorris 35:26b0a9b55d82 25
thomasmorris 35:26b0a9b55d82 26 /* Can handle 5 simultaneous connections */
thomasmorris 35:26b0a9b55d82 27 srv.listen(5);
thomasmorris 35:26b0a9b55d82 28 }
thomasmorris 35:26b0a9b55d82 29 void Networking()
thomasmorris 35:26b0a9b55d82 30 {
thomasmorris 35:26b0a9b55d82 31 //using namespace std;
thomasmorris 35:26b0a9b55d82 32 //Block and wait on an incoming connection
thomasmorris 35:26b0a9b55d82 33 srv.accept(&clt_sock, &clt_addr);
thomasmorris 35:26b0a9b55d82 34 printf("accept %s:%d\n", clt_addr.get_ip_address(), clt_addr.get_port());
thomasmorris 35:26b0a9b55d82 35
thomasmorris 35:26b0a9b55d82 36 //Uses a C++ string to make it easier to concatinate
thomasmorris 35:26b0a9b55d82 37 string response;
thomasmorris 35:26b0a9b55d82 38 //This is a C string
thomasmorris 35:26b0a9b55d82 39 char ldr_str[64];
thomasmorris 35:26b0a9b55d82 40
thomasmorris 35:26b0a9b55d82 41 //Read the LDR value
thomasmorris 35:26b0a9b55d82 42 float u = ldr;
thomasmorris 35:26b0a9b55d82 43
thomasmorris 35:26b0a9b55d82 44 //Convert to a C String
thomasmorris 35:26b0a9b55d82 45 sprintf(ldr_str, "%5.3f", u );
thomasmorris 35:26b0a9b55d82 46 printf("LDR: %5.3f\n\r", u);
thomasmorris 35:26b0a9b55d82 47
thomasmorris 35:26b0a9b55d82 48 //Build the C++ string response
thomasmorris 35:26b0a9b55d82 49 response = HTTP_MESSAGE_BODY1;
thomasmorris 35:26b0a9b55d82 50 response += ldr_str;
thomasmorris 35:26b0a9b55d82 51 response += HTTP_MESSAGE_BODY2;
thomasmorris 35:26b0a9b55d82 52
thomasmorris 35:26b0a9b55d82 53 //Send static HTML response (as a C string)
thomasmorris 35:26b0a9b55d82 54 clt_sock.send(response.c_str(), response.size()+6);
thomasmorris 35:26b0a9b55d82 55 }