main.cpp

00001 /* WiFi Example
00002  * Copyright (c) 2016 ARM Limited
00003  *
00004  * Licensed under the Apache License, Version 2.0 (the "License");
00005  * you may not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  *     http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 
00017 #include "mbed.h"
00018 #include "TCPSocket.h"
00019 #include "MXCHIPInterface.h"
00020 
00021 MXCHIPInterface wifi(D10,D2);
00022 Serial pc(STDIO_UART_TX,STDIO_UART_RX,115200);
00023 
00024 void http_demo(NetworkInterface *net)
00025 {
00026     TCPSocket socket;
00027     nsapi_error_t response;
00028 
00029     printf("Sending HTTP request to www.arm.com...\r\n");
00030 
00031     // Open a socket on the network interface, and create a TCP connection to www.arm.com
00032     socket.open(net);
00033     response = socket.connect("www.arm.com", 80);
00034     if(0 != response) {
00035         printf("Error connecting: %d\r\n", response);
00036         socket.close();
00037         return;
00038     }
00039 
00040     // Send a simple http request
00041     char sbuffer[] = "GET / HTTP/1.1\r\nHost: www.arm.com\r\n\r\n";
00042     nsapi_size_t size = sizeof sbuffer;
00043     response = 0;
00044     while(size)
00045     {
00046         response = socket.send(sbuffer+response, size);
00047         if (response < 0) {
00048             printf("Error sending data: %d\r\n", response);
00049             socket.close();
00050             return;
00051         } else {
00052             size -= response;
00053             // Check if entire message was sent or not
00054             printf("sent %d [%.*s]\r\n", response, strstr(sbuffer, "\r\n")-sbuffer, sbuffer);
00055         }
00056     }
00057 
00058     // Recieve a simple http response and print out the response line
00059     char rbuffer[64];
00060     response = socket.recv(rbuffer, sizeof rbuffer);
00061     if (response < 0) {
00062         printf("Error receiving data: %d\r\n", response);
00063     } else {
00064         printf("recv %d [%.*s]\r\n", response, strstr(rbuffer, "\r\n")-rbuffer, rbuffer);
00065     }
00066 
00067     // Close the socket to return its memory and bring down the network interface
00068     socket.close();
00069 }
00070 
00071 int main()
00072 {
00073     printf("WiFi example\r\n\r\n");
00074 
00075     printf("\r\nConnecting...\r\n");
00076     int ret = wifi.connect(MBED_CONF_APP_WIFI_SSID, MBED_CONF_APP_WIFI_PASSWORD, NSAPI_SECURITY_WPA_WPA2);
00077     if (ret != 0) {
00078         printf("\r\nConnection error\r\n");
00079         return -1;
00080     }
00081 
00082     printf("Success\r\n\r\n");
00083     printf("MAC: %s\r\n", wifi.get_mac_address());
00084     printf("IP: %s\r\n", wifi.get_ip_address());
00085     printf("Netmask: %s\r\n", wifi.get_netmask());
00086     printf("Gateway: %s\r\n", wifi.get_gateway());
00087     printf("RSSI: %d\r\n\r\n", wifi.get_rssi());
00088 
00089     http_demo(&wifi);
00090 
00091     wifi.disconnect();
00092 
00093     printf("\r\nDone\r\n");
00094 }