main.cpp

00001 /* main.cpp in HelloLWIPBP3595Interface */
00002 /* Copyright (C) 2016 Grape Systems, Inc. */
00003 /* The base file is main.cpp in HelloLWIPInterface. */
00004 
00005 /* main.cpp in HelloLWIPInterface */
00006 /* NetworkSocketAPI Example Program
00007  * Copyright (c) 2015 ARM Limited
00008  *
00009  * Licensed under the Apache License, Version 2.0 (the "License");
00010  * you may not use this file except in compliance with the License.
00011  * You may obtain a copy of the License at
00012  *
00013  *     http://www.apache.org/licenses/LICENSE-2.0
00014  *
00015  * Unless required by applicable law or agreed to in writing, software
00016  * distributed under the License is distributed on an "AS IS" BASIS,
00017  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00018  * See the License for the specific language governing permissions and
00019  * limitations under the License.
00020  */
00021 
00022 /* This is a NetworkSocketAPI example for LWIPBP3595Interface_STA library. */
00023 /* LWIPBP3595Interface_STA library only works with GR-PEACH. */
00024 /* The base example is HelloLWIPInterface. */
00025 
00026 /*
00027 Warning!
00028   When exporting and using it, increase the following stack size.
00029   
00030   [LWIPInterface/lwip/lwipopts.h]-------------
00031   #define TCPIP_THREAD_STACKSIZE      1024
00032   ->
00033   #define TCPIP_THREAD_STACKSIZE      2048
00034   --------------------------------------------
00035 */
00036 
00037 /*
00038 This program works with the following library.
00039   mbed-rtos : revision 115
00040 */
00041 
00042 #include "mbed.h"
00043 #include "LWIPBP3595Interface.h"
00044 #include "TCPSocket.h"
00045 
00046 LWIPBP3595Interface wifi;
00047 
00048 DigitalOut led(LED_GREEN);
00049 void blink()
00050 {
00051     led = !led;
00052 }
00053 
00054 int main()
00055 {
00056     Ticker blinky;
00057     blinky.attach(blink, 0.4f);
00058 
00059     printf("NetworkSocketAPI Example\r\n");
00060 
00061     wifi.connect("ssid", "password");
00062     const char *ip = wifi.get_ip_address();
00063     const char *mac = wifi.get_mac_address();
00064     printf("IP address is: %s\r\n", ip ? ip : "No IP");
00065     printf("MAC address is: %s\r\n", mac ? mac : "No MAC");
00066     
00067     SocketAddress addr(&wifi, "mbed.org");
00068     printf("mbed.org resolved to: %s\r\n", addr.get_ip_address());
00069 
00070     TCPSocket socket(&wifi);
00071     socket.connect("4.ifcfg.me", 23);
00072 
00073     char buffer[64];
00074     int count = socket.recv(buffer, sizeof buffer);
00075     printf("public IP address is: %.15s\r\n", &buffer[15]);
00076     
00077     socket.close();
00078     wifi.disconnect();
00079 
00080     printf("Done\r\n");
00081 }