Nuvoton / Mbed OS NuMaker-mbed-wifi-tcp

NuMaker WiFi TCP Example

main.cpp@15:32a6a29ffcb3, 2018-09-07 (annotated)

Committer:
ccli8
Date:
Fri Sep 07 11:41:27 2018 +0800
Revision:
15:32a6a29ffcb3
Parent:
13:be6ec74c5987
Child:
16:f705110e6c04
Support ARMC6 toolchain



1. Replace _sbrk with MBED_HEAP_STATS_ENABLED for heap statistics

2. Fix cannot cast 'NetworkInterface *' to e.g. 'ESP8266Interface *' via virtual base 'NetworkInterface'

Who changed what in which revision?

UserRevisionLine numberNew contents of line
cyliang 0:2198c8de64fe 1
cyliang 0:2198c8de64fe 2 #include <algorithm>
cyliang 0:2198c8de64fe 3 #include "mbed.h"
ccli8 15:32a6a29ffcb3 4 #include "mbed_stats.h"
cyliang 0:2198c8de64fe 5 #include "TCPSocket.h"
cyliang 0:2198c8de64fe 6 #include "unity/unity.h"
cyliang 0:2198c8de64fe 7
cyliang 0:2198c8de64fe 8
cyliang 0:2198c8de64fe 9 //#define LOCAL_LAN
cyliang 0:2198c8de64fe 10
cyliang 0:2198c8de64fe 11 #define ETHERNET 1
cyliang 0:2198c8de64fe 12 #define WIFI 2
cyliang 0:2198c8de64fe 13 #define MESH_LOWPAN_ND 3
cyliang 0:2198c8de64fe 14 #define MESH_THREAD 4
cyliang 0:2198c8de64fe 15
cyliang 0:2198c8de64fe 16 #if MBED_CONF_APP_NETWORK_INTERFACE == WIFI
cyliang 0:2198c8de64fe 17 #include "ESP8266Interface.h"
cyliang 0:2198c8de64fe 18 ESP8266Interface esp(D1, D0);
cyliang 0:2198c8de64fe 19 #elif MBED_CONF_APP_NETWORK_INTERFACE == ETHERNET
cyliang 0:2198c8de64fe 20 #include "EthernetInterface.h"
cyliang 0:2198c8de64fe 21 EthernetInterface eth;
cyliang 0:2198c8de64fe 22 #elif MBED_CONF_APP_NETWORK_INTERFACE == MESH_LOWPAN_ND
cyliang 0:2198c8de64fe 23 #define MESH
cyliang 0:2198c8de64fe 24 #include "NanostackInterface.h"
cyliang 0:2198c8de64fe 25 LoWPANNDInterface mesh;
cyliang 0:2198c8de64fe 26 #elif MBED_CONF_APP_NETWORK_INTERFACE == MESH_THREAD
cyliang 0:2198c8de64fe 27 #define MESH
cyliang 0:2198c8de64fe 28 #include "NanostackInterface.h"
cyliang 0:2198c8de64fe 29 ThreadInterface mesh;
cyliang 0:2198c8de64fe 30 #endif
cyliang 0:2198c8de64fe 31
cyliang 0:2198c8de64fe 32 namespace {
cyliang 0:2198c8de64fe 33 // Test connection information
cyliang 0:2198c8de64fe 34 #ifndef LOCAL_LAN
ccli8 11:658411c71934 35 const char *HTTP_SERVER_NAME = "os.mbed.com";
cyliang 0:2198c8de64fe 36 #else
cyliang 0:2198c8de64fe 37 const char *HTTP_SERVER_NAME = "pt22_winserver2.nuvoton.com";
cyliang 0:2198c8de64fe 38 #endif
cyliang 0:2198c8de64fe 39
cyliang 0:2198c8de64fe 40 #ifndef LOCAL_LAN
cyliang 0:2198c8de64fe 41 const char *HTTP_SERVER_FILE_PATH = "/media/uploads/mbed_official/hello.txt";
cyliang 0:2198c8de64fe 42 const int HTTP_SERVER_PORT = 80;
cyliang 0:2198c8de64fe 43 #else
cyliang 0:2198c8de64fe 44 const char *HTTP_SERVER_FILE_PATH = "/examples/arm_mbed/hello.txt";
cyliang 0:2198c8de64fe 45 const int HTTP_SERVER_PORT = 8080;
cyliang 0:2198c8de64fe 46 #endif
cyliang 0:2198c8de64fe 47
cyliang 0:2198c8de64fe 48
cyliang 0:2198c8de64fe 49 const int RECV_BUFFER_SIZE = 512;
cyliang 0:2198c8de64fe 50
cyliang 0:2198c8de64fe 51 // Test related data
cyliang 0:2198c8de64fe 52 const char *HTTP_OK_STR = "200 OK";
cyliang 0:2198c8de64fe 53 const char *HTTP_HELLO_STR = "Hello world!";
cyliang 0:2198c8de64fe 54
cyliang 0:2198c8de64fe 55 // Test buffers
cyliang 0:2198c8de64fe 56 char buffer[RECV_BUFFER_SIZE] = {0};
cyliang 0:2198c8de64fe 57 }
cyliang 0:2198c8de64fe 58
cyliang 0:2198c8de64fe 59 bool find_substring(const char *first, const char *last, const char *s_first, const char *s_last) {
cyliang 0:2198c8de64fe 60 const char *f = std::search(first, last, s_first, s_last);
cyliang 0:2198c8de64fe 61 return (f != last);
cyliang 0:2198c8de64fe 62 }
cyliang 0:2198c8de64fe 63
cyliang 0:2198c8de64fe 64
cyliang 0:2198c8de64fe 65 Serial output(USBTX, USBRX);
cyliang 0:2198c8de64fe 66
cyliang 0:2198c8de64fe 67 int main() {
ccli8 15:32a6a29ffcb3 68 #if MBED_HEAP_STATS_ENABLED
ccli8 15:32a6a29ffcb3 69 mbed_stats_heap_t heap_stats;
ccli8 15:32a6a29ffcb3 70 #endif
ccli8 15:32a6a29ffcb3 71
cyliang 0:2198c8de64fe 72 // Sets the console baud-rate
cyliang 0:2198c8de64fe 73 output.baud(115200);
cyliang 0:2198c8de64fe 74 output.printf(" Start WiFi test \r\n");
cyliang 0:2198c8de64fe 75
cyliang 0:2198c8de64fe 76 bool result = true;
ccli8 15:32a6a29ffcb3 77 int rc = 0;
cyliang 0:2198c8de64fe 78
cyliang 0:2198c8de64fe 79 output.printf(" Start Connection ... \r\n");
cyliang 0:2198c8de64fe 80
cyliang 0:2198c8de64fe 81
cyliang 0:2198c8de64fe 82 NetworkInterface *network_interface = 0;
cyliang 0:2198c8de64fe 83
cyliang 0:2198c8de64fe 84 #if MBED_CONF_APP_NETWORK_INTERFACE == WIFI
cyliang 0:2198c8de64fe 85 output.printf("\n\rUsing WiFi \r\n");
cyliang 0:2198c8de64fe 86 output.printf("\n\rConnecting to WiFi..\r\n");
cyliang 13:be6ec74c5987 87 rc = esp.connect(MBED_CONF_APP_WIFI_SSID, MBED_CONF_APP_WIFI_PASSWORD, NSAPI_SECURITY_WPA_WPA2);
cyliang 0:2198c8de64fe 88 network_interface = &esp;
cyliang 0:2198c8de64fe 89 #elif MBED_CONF_APP_NETWORK_INTERFACE == ETHERNET
cyliang 0:2198c8de64fe 90 output.printf("Using Ethernet\r\n");
cyliang 0:2198c8de64fe 91 rc = eth.connect();
cyliang 0:2198c8de64fe 92 network_interface = &eth;
cyliang 0:2198c8de64fe 93 #endif
cyliang 0:2198c8de64fe 94 #ifdef MESH
cyliang 0:2198c8de64fe 95 output.printf("Using Mesh\r\n");
cyliang 0:2198c8de64fe 96 output.printf("\n\rConnecting to Mesh..\r\n");
cyliang 0:2198c8de64fe 97 rc = mesh.connect();
cyliang 0:2198c8de64fe 98 network_interface = &mesh;
cyliang 0:2198c8de64fe 99 #endif
cyliang 0:2198c8de64fe 100
cyliang 0:2198c8de64fe 101 if(rc == 0) {
cyliang 0:2198c8de64fe 102 output.printf("\n\rConnected to Network successfully\r\n");
cyliang 0:2198c8de64fe 103 } else {
cyliang 0:2198c8de64fe 104 output.printf("\n\rConnection to Network Failed %d! Exiting application....\r\n", rc);
cyliang 0:2198c8de64fe 105 return 0;
cyliang 0:2198c8de64fe 106 }
cyliang 0:2198c8de64fe 107
cyliang 0:2198c8de64fe 108 output.printf("TCP client IP Address is %s\r\n", network_interface->get_ip_address());
cyliang 0:2198c8de64fe 109
cyliang 0:2198c8de64fe 110 TCPSocket sock(network_interface);
cyliang 0:2198c8de64fe 111 output.printf(" HTTP Connection ... \r\n");
cyliang 0:2198c8de64fe 112 if (sock.connect(HTTP_SERVER_NAME, HTTP_SERVER_PORT) == 0) {
cyliang 0:2198c8de64fe 113 output.printf("HTTP: Connected to %s:%d\r\n", HTTP_SERVER_NAME, HTTP_SERVER_PORT);
cyliang 0:2198c8de64fe 114
cyliang 0:2198c8de64fe 115 // We are constructing GET command like this:
cyliang 0:2198c8de64fe 116 // GET http://developer.mbed.org/media/uploads/mbed_official/hello.txt HTTP/1.0\n\n
cyliang 0:2198c8de64fe 117 strcpy(buffer, "GET http://");
cyliang 0:2198c8de64fe 118 strcat(buffer, HTTP_SERVER_NAME);
cyliang 0:2198c8de64fe 119 strcat(buffer, HTTP_SERVER_FILE_PATH);
cyliang 0:2198c8de64fe 120 strcat(buffer, " HTTP/1.0\n\n");
cyliang 0:2198c8de64fe 121 // Send GET command
cyliang 0:2198c8de64fe 122 sock.send(buffer, strlen(buffer));
cyliang 0:2198c8de64fe 123
cyliang 0:2198c8de64fe 124 // Server will respond with HTTP GET's success code
cyliang 0:2198c8de64fe 125 const int ret = sock.recv(buffer, sizeof(buffer) - 1);
cyliang 0:2198c8de64fe 126 buffer[ret] = '\0';
cyliang 0:2198c8de64fe 127
cyliang 0:2198c8de64fe 128 // Find 200 OK HTTP status in reply
cyliang 0:2198c8de64fe 129 bool found_200_ok = find_substring(buffer, buffer + ret, HTTP_OK_STR, HTTP_OK_STR + strlen(HTTP_OK_STR));
cyliang 0:2198c8de64fe 130 // Find "Hello World!" string in reply
cyliang 0:2198c8de64fe 131 bool found_hello = find_substring(buffer, buffer + ret, HTTP_HELLO_STR, HTTP_HELLO_STR + strlen(HTTP_HELLO_STR));
cyliang 0:2198c8de64fe 132
cyliang 0:2198c8de64fe 133 if (!found_200_ok) result = false;
cyliang 0:2198c8de64fe 134 if (!found_hello) result = false;
cyliang 0:2198c8de64fe 135
cyliang 0:2198c8de64fe 136 output.printf("HTTP: Received %d chars from server\r\n", ret);
cyliang 0:2198c8de64fe 137 output.printf("HTTP: Received 200 OK status ... %s\r\n", found_200_ok ? "[OK]" : "[FAIL]");
cyliang 0:2198c8de64fe 138 output.printf("HTTP: Received '%s' status ... %s\r\n", HTTP_HELLO_STR, found_hello ? "[OK]" : "[FAIL]");
cyliang 0:2198c8de64fe 139 output.printf("HTTP: Received massage:\r\n\r\n");
cyliang 0:2198c8de64fe 140 output.printf("%s", buffer);
cyliang 0:2198c8de64fe 141 }
cyliang 0:2198c8de64fe 142
ccli8 15:32a6a29ffcb3 143 #if MBED_HEAP_STATS_ENABLED
ccli8 15:32a6a29ffcb3 144 mbed_stats_heap_get(&heap_stats);
ccli8 15:32a6a29ffcb3 145 printf("Current heap: %lu\r\n", heap_stats.current_size);
ccli8 15:32a6a29ffcb3 146 printf("Max heap size: %lu\r\n", heap_stats.max_size);
cyliang 0:2198c8de64fe 147 #endif
ccli8 15:32a6a29ffcb3 148
cyliang 0:2198c8de64fe 149 output.printf(" Close socket & disconnect ... \r\n");
cyliang 0:2198c8de64fe 150 sock.close();
cyliang 0:2198c8de64fe 151
cyliang 0:2198c8de64fe 152 #if MBED_CONF_APP_NETWORK_INTERFACE == WIFI
ccli8 15:32a6a29ffcb3 153 esp.disconnect();
cyliang 0:2198c8de64fe 154 #elif MBED_CONF_APP_NETWORK_INTERFACE == ETHERNET
ccli8 15:32a6a29ffcb3 155 eth.disconnect();
cyliang 0:2198c8de64fe 156 #elif MBED_CONF_APP_NETWORK_INTERFACE == MESH_LOWPAN_ND
ccli8 15:32a6a29ffcb3 157 mesh.disconnect();
cyliang 0:2198c8de64fe 158 #elif MBED_CONF_APP_NETWORK_INTERFACE == MESH_THREAD
ccli8 15:32a6a29ffcb3 159 mesh.disconnect();
cyliang 0:2198c8de64fe 160 #endif
cyliang 0:2198c8de64fe 161 output.printf(" End \r\n");
cyliang 0:2198c8de64fe 162 }