Peng Jing Xuan / Mbed OS DISCO_L475VG_IOT01-wifi-client

WIFU

Dependencies:   DISCO_L475VG_IOT01A_wifi

main.cpp@2:9a54ede37c7e, 2017-08-17 (annotated)

Committer:
adustm
Date:
Thu Aug 17 16:35:36 2017 +0000
Revision:
2:9a54ede37c7e
Parent:
0:c301ccc87f5b
Child:
4:5faac3e1e099
WIFI CLIENT Example for DISCO_L475VG_IOT1A platform

Who changed what in which revision?

UserRevisionLine numberNew contents of line
adustm 0:c301ccc87f5b 1 #include "mbed.h"
adustm 0:c301ccc87f5b 2 #include "wifi.h"
adustm 0:c301ccc87f5b 3 /*------------------------------------------------------------------------------
adustm 0:c301ccc87f5b 4 Hyperterminal settings: 115200 bauds, 8-bit data, no parity
adustm 0:c301ccc87f5b 5
adustm 0:c301ccc87f5b 6 This example
adustm 0:c301ccc87f5b 7 - connects to a wifi network (SSID & PWD to set in mbed_app.json)
adustm 2:9a54ede37c7e 8 - Connects to a TCP server (set the address in RemoteIP)
adustm 2:9a54ede37c7e 9 - Sends "Hello" to the server when data is received
adustm 0:c301ccc87f5b 10
adustm 0:c301ccc87f5b 11 This example uses SPI3 ( PE_0 PC_10 PC_12 PC_11), wifi_wakeup pin (PB_13),
adustm 0:c301ccc87f5b 12 wifi_dataready pin (PE_1), wifi reset pin (PE_8)
adustm 0:c301ccc87f5b 13 ------------------------------------------------------------------------------*/
adustm 0:c301ccc87f5b 14
adustm 0:c301ccc87f5b 15 /* Private defines -----------------------------------------------------------*/
adustm 0:c301ccc87f5b 16 #define WIFI_WRITE_TIMEOUT 10000
adustm 0:c301ccc87f5b 17 #define WIFI_READ_TIMEOUT 10000
adustm 2:9a54ede37c7e 18 #define CONNECTION_TRIAL_MAX 10
adustm 0:c301ccc87f5b 19
adustm 0:c301ccc87f5b 20 /* Private typedef------------------------------------------------------------*/
adustm 0:c301ccc87f5b 21 /* Private macro -------------------------------------------------------------*/
adustm 0:c301ccc87f5b 22 /* Private variables ---------------------------------------------------------*/
adustm 0:c301ccc87f5b 23 Serial pc(SERIAL_TX, SERIAL_RX);
adustm 2:9a54ede37c7e 24 uint8_t RemoteIP[] = {MBED_CONF_APP_SERVER_IP_1,MBED_CONF_APP_SERVER_IP_2,MBED_CONF_APP_SERVER_IP_3, MBED_CONF_APP_SERVER_IP_4};
adustm 2:9a54ede37c7e 25 uint8_t RxData [500];
adustm 2:9a54ede37c7e 26 char* modulename;
adustm 2:9a54ede37c7e 27 uint8_t TxData[] = "STM32 : Hello!\n";
adustm 2:9a54ede37c7e 28 uint16_t RxLen;
adustm 0:c301ccc87f5b 29 uint8_t MAC_Addr[6];
adustm 2:9a54ede37c7e 30 uint8_t IP_Addr[4];
adustm 0:c301ccc87f5b 31
adustm 0:c301ccc87f5b 32 int main()
adustm 0:c301ccc87f5b 33 {
adustm 2:9a54ede37c7e 34 int32_t Socket = -1;
adustm 2:9a54ede37c7e 35 uint16_t Datalen;
adustm 2:9a54ede37c7e 36 uint16_t Trials = CONNECTION_TRIAL_MAX;
adustm 2:9a54ede37c7e 37
adustm 0:c301ccc87f5b 38 pc.baud(115200);
adustm 2:9a54ede37c7e 39
adustm 0:c301ccc87f5b 40 printf("\n");
adustm 0:c301ccc87f5b 41 printf("************************************************************\n");
adustm 0:c301ccc87f5b 42 printf("*** STM32 IoT Discovery kit for STM32L475 MCU ***\n");
adustm 2:9a54ede37c7e 43 printf("*** WIFI Module in TCP Client mode demonstration ***\n\n");
adustm 2:9a54ede37c7e 44 printf("*** TCP Client Instructions :\n");
adustm 2:9a54ede37c7e 45 printf("*** 1- Make sure your Phone is connected to the same network that\n");
adustm 2:9a54ede37c7e 46 printf("*** you configured using the Configuration Access Point.\n");
adustm 2:9a54ede37c7e 47 printf("*** 2- Create a server by using the android application TCP Server\n");
adustm 2:9a54ede37c7e 48 printf("*** with port(8002).\n");
adustm 2:9a54ede37c7e 49 printf("*** 3- Get the Network Name or IP Address of your phone from the step 2.\n\n");
adustm 0:c301ccc87f5b 50 printf("************************************************************\n");
adustm 0:c301ccc87f5b 51
adustm 2:9a54ede37c7e 52 /*Initialize WIFI module */
adustm 0:c301ccc87f5b 53 if(WIFI_Init() == WIFI_STATUS_OK) {
adustm 2:9a54ede37c7e 54 printf("> WIFI Module Initialized.\n");
adustm 2:9a54ede37c7e 55 if(WIFI_GetMAC_Address(MAC_Addr) == WIFI_STATUS_OK) {
adustm 0:c301ccc87f5b 56 printf("> es-wifi module MAC Address : %X:%X:%X:%X:%X:%X\n",
adustm 0:c301ccc87f5b 57 MAC_Addr[0],
adustm 0:c301ccc87f5b 58 MAC_Addr[1],
adustm 0:c301ccc87f5b 59 MAC_Addr[2],
adustm 0:c301ccc87f5b 60 MAC_Addr[3],
adustm 0:c301ccc87f5b 61 MAC_Addr[4],
adustm 0:c301ccc87f5b 62 MAC_Addr[5]);
adustm 0:c301ccc87f5b 63 } else {
adustm 0:c301ccc87f5b 64 printf("> ERROR : CANNOT get MAC address\n");
adustm 0:c301ccc87f5b 65 }
adustm 0:c301ccc87f5b 66
adustm 0:c301ccc87f5b 67 if( WIFI_Connect(MBED_CONF_APP_WIFI_SSID, MBED_CONF_APP_WIFI_PASSWORD, WIFI_ECN_WPA2_PSK) == WIFI_STATUS_OK) {
adustm 0:c301ccc87f5b 68 printf("> es-wifi module connected \n");
adustm 0:c301ccc87f5b 69 if(WIFI_GetIP_Address(IP_Addr) == WIFI_STATUS_OK) {
adustm 0:c301ccc87f5b 70 printf("> es-wifi module got IP Address : %d.%d.%d.%d\n",
adustm 0:c301ccc87f5b 71 IP_Addr[0],
adustm 0:c301ccc87f5b 72 IP_Addr[1],
adustm 0:c301ccc87f5b 73 IP_Addr[2],
adustm 0:c301ccc87f5b 74 IP_Addr[3]);
adustm 0:c301ccc87f5b 75
adustm 2:9a54ede37c7e 76 printf("> Trying to connect to Server: %d.%d.%d.%d:8002 ...\n",
adustm 2:9a54ede37c7e 77 RemoteIP[0],
adustm 2:9a54ede37c7e 78 RemoteIP[1],
adustm 2:9a54ede37c7e 79 RemoteIP[2],
adustm 2:9a54ede37c7e 80 RemoteIP[3]);
adustm 2:9a54ede37c7e 81
adustm 2:9a54ede37c7e 82 while (Trials--){
adustm 2:9a54ede37c7e 83 if( WIFI_OpenClientConnection(0, WIFI_TCP_PROTOCOL, "TCP_CLIENT", RemoteIP, 8002, 0) == WIFI_STATUS_OK){
adustm 2:9a54ede37c7e 84 printf("> TCP Connection opened successfully.\n");
adustm 2:9a54ede37c7e 85 Socket = 0;
adustm 2:9a54ede37c7e 86 }
adustm 2:9a54ede37c7e 87 }
adustm 2:9a54ede37c7e 88 if(!Trials) {
adustm 2:9a54ede37c7e 89 printf("> ERROR : Cannot open Connection\n");
adustm 2:9a54ede37c7e 90 }
adustm 2:9a54ede37c7e 91 } else {
adustm 0:c301ccc87f5b 92 printf("> ERROR : es-wifi module CANNOT get IP address\n");
adustm 0:c301ccc87f5b 93 }
adustm 0:c301ccc87f5b 94 } else {
adustm 0:c301ccc87f5b 95 printf("> ERROR : es-wifi module NOT connected\n");
adustm 0:c301ccc87f5b 96 }
adustm 0:c301ccc87f5b 97 } else {
adustm 0:c301ccc87f5b 98 printf("> ERROR : WIFI Module cannot be initialized.\n");
adustm 0:c301ccc87f5b 99 }
adustm 2:9a54ede37c7e 100
adustm 2:9a54ede37c7e 101 while(1){
adustm 2:9a54ede37c7e 102 if(Socket != -1) {
adustm 2:9a54ede37c7e 103 if(WIFI_ReceiveData(Socket, RxData, sizeof(RxData), &Datalen, WIFI_READ_TIMEOUT) == WIFI_STATUS_OK){
adustm 2:9a54ede37c7e 104 if(Datalen > 0) {
adustm 2:9a54ede37c7e 105 if(WIFI_SendData(Socket, TxData, sizeof(TxData), &Datalen, WIFI_WRITE_TIMEOUT) != WIFI_STATUS_OK) {
adustm 2:9a54ede37c7e 106 printf("> ERROR : Failed to send Data.\n");
adustm 2:9a54ede37c7e 107 }
adustm 2:9a54ede37c7e 108 }
adustm 2:9a54ede37c7e 109 } else {
adustm 2:9a54ede37c7e 110 printf("> ERROR : Failed to Receive Data.\n");
adustm 0:c301ccc87f5b 111 }
adustm 0:c301ccc87f5b 112 }
adustm 0:c301ccc87f5b 113 }
adustm 0:c301ccc87f5b 114 }