Shields / Mbed 2 deprecated Seeed_Ethernet_Shield

Example program for the Ethernet Shield V2.0 by SeeedStudio. The example gets an IP address via DHCP and then requests http://mbed.org/media/uploads/mbed_official/hello.txt

Dependencies:   WIZ820ioInterface mbed

main.cpp@6:4bb23453ce91, 2014-07-25 (annotated)

Committer:
screamer
Date:
Fri Jul 25 12:29:05 2014 +0000
Revision:
6:4bb23453ce91
Parent:
4:14045b8557cb 
Add Apache2 license compatible header

Who changed what in which revision?

UserRevisionLine numberNew contents of line
screamer 6:4bb23453ce91 1 /* Copyright (c) 2010-2011 mbed.org, MIT License
screamer 6:4bb23453ce91 2 *
screamer 6:4bb23453ce91 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
screamer 6:4bb23453ce91 4 * and associated documentation files (the "Software"), to deal in the Software without
screamer 6:4bb23453ce91 5 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
screamer 6:4bb23453ce91 6 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
screamer 6:4bb23453ce91 7 * Software is furnished to do so, subject to the following conditions:
screamer 6:4bb23453ce91 8 *
screamer 6:4bb23453ce91 9 * The above copyright notice and this permission notice shall be included in all copies or
screamer 6:4bb23453ce91 10 * substantial portions of the Software.
screamer 6:4bb23453ce91 11 *
screamer 6:4bb23453ce91 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
screamer 6:4bb23453ce91 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
screamer 6:4bb23453ce91 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
screamer 6:4bb23453ce91 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
screamer 6:4bb23453ce91 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
screamer 6:4bb23453ce91 17 */
screamer 6:4bb23453ce91 18
screamer 0:1e952439b254 19 #include "mbed.h"
screamer 0:1e952439b254 20 #include "WIZ820ioInterface.h"
screamer 0:1e952439b254 21
screamer 0:1e952439b254 22 Serial pc(USBTX, USBRX);
screamer 2:3b6c391a682d 23
screamer 2:3b6c391a682d 24 /**
screamer 2:3b6c391a682d 25 * D11 - MOSI pin
screamer 2:3b6c391a682d 26 * D12 - MISO pin
screamer 2:3b6c391a682d 27 * D13 - SCK pin
screamer 2:3b6c391a682d 28 * D10 - SEL pin
screamer 3:2d0986d5542e 29 * NC - Reset pin; use D5 otherwise the shield might get into reset loop
screamer 2:3b6c391a682d 30 */
screamer 3:2d0986d5542e 31 WIZ820ioInterface eth(D11, D12, D13, D10, D5);
screamer 0:1e952439b254 32
screamer 0:1e952439b254 33 int main()
screamer 0:1e952439b254 34 {
screamer 0:1e952439b254 35 wait(3);
screamer 1:bb040724d21b 36
screamer 1:bb040724d21b 37 // Initialize the interface.
screamer 1:bb040724d21b 38 // If no param is passed to init() then DHCP will be used on connect()
screamer 1:bb040724d21b 39 int s = eth.init();
screamer 0:1e952439b254 40 if (s != NULL) {
screamer 3:2d0986d5542e 41 printf(">>> Could not initialise. Halting!\n");
screamer 0:1e952439b254 42 exit(0);
screamer 0:1e952439b254 43 }
screamer 0:1e952439b254 44
screamer 3:2d0986d5542e 45 printf(">>> Get IP address...\n");
screamer 0:1e952439b254 46 while (1) {
screamer 1:bb040724d21b 47 s = eth.connect(); // Connect to network
screamer 0:1e952439b254 48
screamer 0:1e952439b254 49 if (s == false || s < 0) {
screamer 4:14045b8557cb 50 printf(">>> Could not connect to network! Retrying ...\n");
screamer 0:1e952439b254 51 wait(3);
screamer 0:1e952439b254 52 } else {
screamer 0:1e952439b254 53 break;
screamer 0:1e952439b254 54 }
screamer 0:1e952439b254 55 }
screamer 3:2d0986d5542e 56 printf(">>> Got IP address: %s\n", eth.getIPAddress());
screamer 0:1e952439b254 57
screamer 1:bb040724d21b 58 // Prepare the http request to mbed.org
screamer 4:14045b8557cb 59 printf(">>> Open socket to mbed.org:80\n");
screamer 0:1e952439b254 60 char http_cmd[] = "GET /media/uploads/mbed_official/hello.txt HTTP/1.0\n\n";
screamer 0:1e952439b254 61 TCPSocketConnection sock;
screamer 4:14045b8557cb 62
screamer 4:14045b8557cb 63 while (sock.connect("mbed.org", 80) == -1) {
screamer 4:14045b8557cb 64 printf(">>> Unable to open socket! Retrying ...\n");
screamer 4:14045b8557cb 65 };
screamer 4:14045b8557cb 66
screamer 4:14045b8557cb 67 printf(">>> Request %s\n", http_cmd);
screamer 0:1e952439b254 68 sock.send_all(http_cmd, sizeof(http_cmd)-1);
screamer 0:1e952439b254 69
screamer 1:bb040724d21b 70 // Read the response
screamer 0:1e952439b254 71 char buffer[300];
screamer 0:1e952439b254 72 int ret;
screamer 0:1e952439b254 73 while (true) {
screamer 0:1e952439b254 74 ret = sock.receive(buffer, sizeof(buffer)-1);
screamer 0:1e952439b254 75 if (ret <= 0)
screamer 0:1e952439b254 76 break;
screamer 0:1e952439b254 77 buffer[ret] = '\0';
screamer 3:2d0986d5542e 78 printf(">>> Received %d chars from mbed.org:\n%s\n", ret, buffer);
screamer 0:1e952439b254 79 }
screamer 4:14045b8557cb 80
screamer 4:14045b8557cb 81 printf(">>> Close socket\n");
screamer 0:1e952439b254 82 sock.close();
screamer 0:1e952439b254 83
screamer 1:bb040724d21b 84 // Disconnect from network
screamer 4:14045b8557cb 85 printf(">>> Disconnect from network\n");
screamer 0:1e952439b254 86 eth.disconnect();
screamer 4:14045b8557cb 87
screamer 0:1e952439b254 88 return 0;
screamer 0:1e952439b254 89 }