Nuvoton / Mbed OS NuMaker-mbed-wifi-tcp

NuMaker WiFi TCP Example

main.cpp@16:f705110e6c04, 2018-09-25 (annotated)

Committer:
ccli8
Date:
Tue Sep 25 13:21:49 2018 +0800
Revision:
16:f705110e6c04
Parent:
15:32a6a29ffcb3
Child:
17:9d31fd2023fd
Support NUMAKER_PFN_M2351/NUMAKER_IOT_M487 on-board ESP8266

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
ccli8 16:f705110e6c04 17 #define ESP8266_AT_ONBOARD 1 // On-board ESP8266
ccli8 16:f705110e6c04 18 #define ESP8266_AT_EXTERN 2 // External ESP8266 through UNO D1/D0
ccli8 16:f705110e6c04 19
ccli8 16:f705110e6c04 20 #define ESP8266_AT_SEL ESP8266_AT_ONBOARD
ccli8 16:f705110e6c04 21 #endif
ccli8 16:f705110e6c04 22
ccli8 16:f705110e6c04 23 #if MBED_CONF_APP_NETWORK_INTERFACE == WIFI
cyliang 0:2198c8de64fe 24 #include "ESP8266Interface.h"
ccli8 16:f705110e6c04 25 # if ESP8266_AT_SEL == ESP8266_AT_ONBOARD
ccli8 16:f705110e6c04 26 # if TARGET_NUMAKER_IOT_M487
ccli8 16:f705110e6c04 27 DigitalOut esp_rst(PH_3, 0); // Simulate reset button pressed
ccli8 16:f705110e6c04 28 ESP8266Interface esp(PH_8, PH_9);
ccli8 16:f705110e6c04 29 # elif TARGET_NUMAKER_PFM_M2351
ccli8 16:f705110e6c04 30 DigitalIn esp_gpio0(PD_6); // Go boot mode by default
ccli8 16:f705110e6c04 31 // User can change to F/W update mode by short'ing ESP8266 GPIO0/GND
ccli8 16:f705110e6c04 32 // before power-on
ccli8 16:f705110e6c04 33 DigitalOut esp_pwr_off(PD_7, 1); // Disable power to on-board ESP8266
ccli8 16:f705110e6c04 34 ESP8266Interface esp(PD_1, PD_0);
ccli8 16:f705110e6c04 35 # endif
ccli8 16:f705110e6c04 36 # elif ESP8266_AT_SEL == ESP8266_AT_EXTERN
cyliang 0:2198c8de64fe 37 ESP8266Interface esp(D1, D0);
ccli8 16:f705110e6c04 38 # endif
cyliang 0:2198c8de64fe 39 #elif MBED_CONF_APP_NETWORK_INTERFACE == ETHERNET
cyliang 0:2198c8de64fe 40 #include "EthernetInterface.h"
cyliang 0:2198c8de64fe 41 EthernetInterface eth;
cyliang 0:2198c8de64fe 42 #elif MBED_CONF_APP_NETWORK_INTERFACE == MESH_LOWPAN_ND
cyliang 0:2198c8de64fe 43 #define MESH
cyliang 0:2198c8de64fe 44 #include "NanostackInterface.h"
cyliang 0:2198c8de64fe 45 LoWPANNDInterface mesh;
cyliang 0:2198c8de64fe 46 #elif MBED_CONF_APP_NETWORK_INTERFACE == MESH_THREAD
cyliang 0:2198c8de64fe 47 #define MESH
cyliang 0:2198c8de64fe 48 #include "NanostackInterface.h"
cyliang 0:2198c8de64fe 49 ThreadInterface mesh;
cyliang 0:2198c8de64fe 50 #endif
cyliang 0:2198c8de64fe 51
cyliang 0:2198c8de64fe 52 namespace {
cyliang 0:2198c8de64fe 53 // Test connection information
cyliang 0:2198c8de64fe 54 #ifndef LOCAL_LAN
ccli8 11:658411c71934 55 const char *HTTP_SERVER_NAME = "os.mbed.com";
cyliang 0:2198c8de64fe 56 #else
cyliang 0:2198c8de64fe 57 const char *HTTP_SERVER_NAME = "pt22_winserver2.nuvoton.com";
cyliang 0:2198c8de64fe 58 #endif
cyliang 0:2198c8de64fe 59
cyliang 0:2198c8de64fe 60 #ifndef LOCAL_LAN
cyliang 0:2198c8de64fe 61 const char *HTTP_SERVER_FILE_PATH = "/media/uploads/mbed_official/hello.txt";
cyliang 0:2198c8de64fe 62 const int HTTP_SERVER_PORT = 80;
cyliang 0:2198c8de64fe 63 #else
cyliang 0:2198c8de64fe 64 const char *HTTP_SERVER_FILE_PATH = "/examples/arm_mbed/hello.txt";
cyliang 0:2198c8de64fe 65 const int HTTP_SERVER_PORT = 8080;
cyliang 0:2198c8de64fe 66 #endif
cyliang 0:2198c8de64fe 67
cyliang 0:2198c8de64fe 68
cyliang 0:2198c8de64fe 69 const int RECV_BUFFER_SIZE = 512;
cyliang 0:2198c8de64fe 70
cyliang 0:2198c8de64fe 71 // Test related data
cyliang 0:2198c8de64fe 72 const char *HTTP_OK_STR = "200 OK";
cyliang 0:2198c8de64fe 73 const char *HTTP_HELLO_STR = "Hello world!";
cyliang 0:2198c8de64fe 74
cyliang 0:2198c8de64fe 75 // Test buffers
cyliang 0:2198c8de64fe 76 char buffer[RECV_BUFFER_SIZE] = {0};
cyliang 0:2198c8de64fe 77 }
cyliang 0:2198c8de64fe 78
cyliang 0:2198c8de64fe 79 bool find_substring(const char *first, const char *last, const char *s_first, const char *s_last) {
cyliang 0:2198c8de64fe 80 const char *f = std::search(first, last, s_first, s_last);
cyliang 0:2198c8de64fe 81 return (f != last);
cyliang 0:2198c8de64fe 82 }
cyliang 0:2198c8de64fe 83
cyliang 0:2198c8de64fe 84
cyliang 0:2198c8de64fe 85 Serial output(USBTX, USBRX);
cyliang 0:2198c8de64fe 86
cyliang 0:2198c8de64fe 87 int main() {
ccli8 16:f705110e6c04 88 #if MBED_CONF_APP_NETWORK_INTERFACE == WIFI
ccli8 16:f705110e6c04 89 # if ESP8266_AT_SEL == ESP8266_AT_ONBOARD
ccli8 16:f705110e6c04 90 # if TARGET_NUMAKER_IOT_M487
ccli8 16:f705110e6c04 91 wait_ms(5);
ccli8 16:f705110e6c04 92 esp_rst = 1; // Simulate reset button released
ccli8 16:f705110e6c04 93 wait_ms(5);
ccli8 16:f705110e6c04 94 # elif TARGET_NUMAKER_PFM_M2351
ccli8 16:f705110e6c04 95 wait_ms(50);
ccli8 16:f705110e6c04 96 esp_pwr_off = 0; // Turn on on-board ESP8266
ccli8 16:f705110e6c04 97 wait_ms(50);
ccli8 16:f705110e6c04 98 # endif
ccli8 16:f705110e6c04 99 # endif
ccli8 16:f705110e6c04 100 #endif
ccli8 16:f705110e6c04 101
ccli8 15:32a6a29ffcb3 102 #if MBED_HEAP_STATS_ENABLED
ccli8 15:32a6a29ffcb3 103 mbed_stats_heap_t heap_stats;
ccli8 15:32a6a29ffcb3 104 #endif
ccli8 15:32a6a29ffcb3 105
cyliang 0:2198c8de64fe 106 // Sets the console baud-rate
cyliang 0:2198c8de64fe 107 output.baud(115200);
cyliang 0:2198c8de64fe 108 output.printf(" Start WiFi test \r\n");
cyliang 0:2198c8de64fe 109
cyliang 0:2198c8de64fe 110 bool result = true;
ccli8 15:32a6a29ffcb3 111 int rc = 0;
cyliang 0:2198c8de64fe 112
cyliang 0:2198c8de64fe 113 output.printf(" Start Connection ... \r\n");
cyliang 0:2198c8de64fe 114
cyliang 0:2198c8de64fe 115
cyliang 0:2198c8de64fe 116 NetworkInterface *network_interface = 0;
cyliang 0:2198c8de64fe 117
cyliang 0:2198c8de64fe 118 #if MBED_CONF_APP_NETWORK_INTERFACE == WIFI
cyliang 0:2198c8de64fe 119 output.printf("\n\rUsing WiFi \r\n");
cyliang 0:2198c8de64fe 120 output.printf("\n\rConnecting to WiFi..\r\n");
cyliang 13:be6ec74c5987 121 rc = esp.connect(MBED_CONF_APP_WIFI_SSID, MBED_CONF_APP_WIFI_PASSWORD, NSAPI_SECURITY_WPA_WPA2);
cyliang 0:2198c8de64fe 122 network_interface = &esp;
cyliang 0:2198c8de64fe 123 #elif MBED_CONF_APP_NETWORK_INTERFACE == ETHERNET
cyliang 0:2198c8de64fe 124 output.printf("Using Ethernet\r\n");
cyliang 0:2198c8de64fe 125 rc = eth.connect();
cyliang 0:2198c8de64fe 126 network_interface = &eth;
cyliang 0:2198c8de64fe 127 #endif
cyliang 0:2198c8de64fe 128 #ifdef MESH
cyliang 0:2198c8de64fe 129 output.printf("Using Mesh\r\n");
cyliang 0:2198c8de64fe 130 output.printf("\n\rConnecting to Mesh..\r\n");
cyliang 0:2198c8de64fe 131 rc = mesh.connect();
cyliang 0:2198c8de64fe 132 network_interface = &mesh;
cyliang 0:2198c8de64fe 133 #endif
cyliang 0:2198c8de64fe 134
cyliang 0:2198c8de64fe 135 if(rc == 0) {
cyliang 0:2198c8de64fe 136 output.printf("\n\rConnected to Network successfully\r\n");
cyliang 0:2198c8de64fe 137 } else {
cyliang 0:2198c8de64fe 138 output.printf("\n\rConnection to Network Failed %d! Exiting application....\r\n", rc);
cyliang 0:2198c8de64fe 139 return 0;
cyliang 0:2198c8de64fe 140 }
cyliang 0:2198c8de64fe 141
cyliang 0:2198c8de64fe 142 output.printf("TCP client IP Address is %s\r\n", network_interface->get_ip_address());
cyliang 0:2198c8de64fe 143
cyliang 0:2198c8de64fe 144 TCPSocket sock(network_interface);
cyliang 0:2198c8de64fe 145 output.printf(" HTTP Connection ... \r\n");
cyliang 0:2198c8de64fe 146 if (sock.connect(HTTP_SERVER_NAME, HTTP_SERVER_PORT) == 0) {
cyliang 0:2198c8de64fe 147 output.printf("HTTP: Connected to %s:%d\r\n", HTTP_SERVER_NAME, HTTP_SERVER_PORT);
cyliang 0:2198c8de64fe 148
cyliang 0:2198c8de64fe 149 // We are constructing GET command like this:
cyliang 0:2198c8de64fe 150 // GET http://developer.mbed.org/media/uploads/mbed_official/hello.txt HTTP/1.0\n\n
cyliang 0:2198c8de64fe 151 strcpy(buffer, "GET http://");
cyliang 0:2198c8de64fe 152 strcat(buffer, HTTP_SERVER_NAME);
cyliang 0:2198c8de64fe 153 strcat(buffer, HTTP_SERVER_FILE_PATH);
cyliang 0:2198c8de64fe 154 strcat(buffer, " HTTP/1.0\n\n");
cyliang 0:2198c8de64fe 155 // Send GET command
cyliang 0:2198c8de64fe 156 sock.send(buffer, strlen(buffer));
cyliang 0:2198c8de64fe 157
cyliang 0:2198c8de64fe 158 // Server will respond with HTTP GET's success code
cyliang 0:2198c8de64fe 159 const int ret = sock.recv(buffer, sizeof(buffer) - 1);
cyliang 0:2198c8de64fe 160 buffer[ret] = '\0';
cyliang 0:2198c8de64fe 161
cyliang 0:2198c8de64fe 162 // Find 200 OK HTTP status in reply
cyliang 0:2198c8de64fe 163 bool found_200_ok = find_substring(buffer, buffer + ret, HTTP_OK_STR, HTTP_OK_STR + strlen(HTTP_OK_STR));
cyliang 0:2198c8de64fe 164 // Find "Hello World!" string in reply
cyliang 0:2198c8de64fe 165 bool found_hello = find_substring(buffer, buffer + ret, HTTP_HELLO_STR, HTTP_HELLO_STR + strlen(HTTP_HELLO_STR));
cyliang 0:2198c8de64fe 166
cyliang 0:2198c8de64fe 167 if (!found_200_ok) result = false;
cyliang 0:2198c8de64fe 168 if (!found_hello) result = false;
cyliang 0:2198c8de64fe 169
cyliang 0:2198c8de64fe 170 output.printf("HTTP: Received %d chars from server\r\n", ret);
cyliang 0:2198c8de64fe 171 output.printf("HTTP: Received 200 OK status ... %s\r\n", found_200_ok ? "[OK]" : "[FAIL]");
cyliang 0:2198c8de64fe 172 output.printf("HTTP: Received '%s' status ... %s\r\n", HTTP_HELLO_STR, found_hello ? "[OK]" : "[FAIL]");
cyliang 0:2198c8de64fe 173 output.printf("HTTP: Received massage:\r\n\r\n");
cyliang 0:2198c8de64fe 174 output.printf("%s", buffer);
cyliang 0:2198c8de64fe 175 }
cyliang 0:2198c8de64fe 176
ccli8 15:32a6a29ffcb3 177 #if MBED_HEAP_STATS_ENABLED
ccli8 15:32a6a29ffcb3 178 mbed_stats_heap_get(&heap_stats);
ccli8 15:32a6a29ffcb3 179 printf("Current heap: %lu\r\n", heap_stats.current_size);
ccli8 15:32a6a29ffcb3 180 printf("Max heap size: %lu\r\n", heap_stats.max_size);
cyliang 0:2198c8de64fe 181 #endif
ccli8 15:32a6a29ffcb3 182
cyliang 0:2198c8de64fe 183 output.printf(" Close socket & disconnect ... \r\n");
cyliang 0:2198c8de64fe 184 sock.close();
cyliang 0:2198c8de64fe 185
cyliang 0:2198c8de64fe 186 #if MBED_CONF_APP_NETWORK_INTERFACE == WIFI
ccli8 15:32a6a29ffcb3 187 esp.disconnect();
cyliang 0:2198c8de64fe 188 #elif MBED_CONF_APP_NETWORK_INTERFACE == ETHERNET
ccli8 15:32a6a29ffcb3 189 eth.disconnect();
cyliang 0:2198c8de64fe 190 #elif MBED_CONF_APP_NETWORK_INTERFACE == MESH_LOWPAN_ND
ccli8 15:32a6a29ffcb3 191 mesh.disconnect();
cyliang 0:2198c8de64fe 192 #elif MBED_CONF_APP_NETWORK_INTERFACE == MESH_THREAD
ccli8 15:32a6a29ffcb3 193 mesh.disconnect();
cyliang 0:2198c8de64fe 194 #endif
cyliang 0:2198c8de64fe 195 output.printf(" End \r\n");
cyliang 0:2198c8de64fe 196 }