Diff: Wificonnect.cpp

Revision:

0:db42952db1a5

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Wificonnect.cpp	Tue Aug 20 08:35:06 2019 +0000
@@ -0,0 +1,133 @@
+#include "mbed.h"
+#include "wifi.h"
+#include "datacheck.h"
+/*------------------------------------------------------------------------------
+Hyperterminal settings: 115200 bauds, 8-bit data, no parity
+
+This example 
+  - connects to a wifi network (SSID & PWD to set in mbed_app.json)
+  - Connects to a TCP server (set the address in RemoteIP)
+  - Sends "Hello" to the server when data is received
+
+This example uses SPI3 ( PE_0 PC_10 PC_12 PC_11), wifi_wakeup pin (PB_13), 
+wifi_dataready pin (PE_1), wifi reset pin (PE_8)
+------------------------------------------------------------------------------*/
+
+/* Private defines -----------------------------------------------------------*/
+#define WIFI_WRITE_TIMEOUT 10000
+#define WIFI_READ_TIMEOUT  10000
+#define CONNECTION_TRIAL_MAX          10
+
+/* Private typedef------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+Serial pc(SERIAL_TX, SERIAL_RX);
+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};
+uint8_t RxData [500];
+char* modulename;
+uint8_t TxData[] = "STM32 : Hello!\n";
+uint16_t RxLen;
+uint8_t  MAC_Addr[6]; 
+uint8_t  IP_Addr[4]; 
+
+void checkdata(uint8_t S[]);
+void update_state();
+
+Ticker tick;
+
+int wifi_connect()
+{
+    int32_t Socket = -1;
+    uint16_t Datalen;
+    uint16_t Trials = CONNECTION_TRIAL_MAX;
+
+    pc.baud(115200);
+
+    printf("\n");
+    printf("************************************************************\n");
+    printf("***   STM32 IoT Discovery kit for STM32L475 MCU          ***\n");
+    printf("***      WIFI Module in TCP Client mode demonstration    ***\n\n");
+    printf("*** TCP Client Instructions :\n");
+    printf("*** 1- Make sure your Phone is connected to the same network that\n");
+    printf("***    you configured using the Configuration Access Point.\n");
+    printf("*** 2- Create a server by using the android application TCP Server\n");
+    printf("***    with port(8002).\n");
+    printf("*** 3- Get the Network Name or IP Address of your phone from the step 2.\n\n"); 
+    printf("************************************************************\n");
+
+    /*Initialize  WIFI module */
+    if(WIFI_Init() ==  WIFI_STATUS_OK) {
+        printf("> WIFI Module Initialized.\n");  
+        if(WIFI_GetMAC_Address(MAC_Addr) == WIFI_STATUS_OK) {
+            printf("> es-wifi module MAC Address : %X:%X:%X:%X:%X:%X\n",     
+                   MAC_Addr[0],
+                   MAC_Addr[1],
+                   MAC_Addr[2],
+                   MAC_Addr[3],
+                   MAC_Addr[4],
+                   MAC_Addr[5]);   
+        } else {
+            printf("> ERROR : CANNOT get MAC address\n");
+        }
+    
+        if( WIFI_Connect(MBED_CONF_APP_WIFI_SSID, MBED_CONF_APP_WIFI_PASSWORD, WIFI_ECN_WPA_PSK)== WIFI_STATUS_OK) {
+        
+            printf("> es-wifi module connected \n");
+            if(WIFI_GetIP_Address(IP_Addr) == WIFI_STATUS_OK) {
+                printf("> es-wifi module got IP Address : %d.%d.%d.%d\n",     
+                       IP_Addr[0],
+                       IP_Addr[1],
+                       IP_Addr[2],
+                       IP_Addr[3]); 
+        
+                printf("> Trying to connect to Server: %d.%d.%d.%d:8002 ...\n",     
+                       RemoteIP[0],
+                       RemoteIP[1],
+                       RemoteIP[2],
+                       RemoteIP[3]);
+        
+                while (Trials--){ 
+                    if( WIFI_OpenClientConnection(0, WIFI_TCP_PROTOCOL, "TCP_CLIENT", RemoteIP, 8002, 0) == WIFI_STATUS_OK){
+                    //if( WIFI_OpenClientConnection(0, WIFI_TCP_PROTOCOL, "TCP_CLIENT", RemoteIP, 80, 0) == WIFI_STATUS_OK){    
+                        printf("> TCP Connection opened successfully.\n"); 
+                        Socket = 0;
+                    }
+                }
+                if(!Trials) {
+                    printf("> ERROR : Cannot open Connection\n");
+                }
+            } else {
+                printf("> ERROR : es-wifi module CANNOT get IP address\n");
+            }
+        } else {
+            printf("> ERROR : es-wifi module NOT connected\n");
+        }
+    } else {
+        printf("> ERROR : WIFI Module cannot be initialized.\n"); 
+    }
+  
+    while(1){
+        tick.attach(&update_state,5);
+        if(Socket != -1) {
+            if(WIFI_ReceiveData(Socket, RxData, sizeof(RxData), &Datalen, WIFI_READ_TIMEOUT) == WIFI_STATUS_OK){
+                if(Datalen > 0) {
+                    //printf("%s \n",RxData);
+                    Data_Receive(RxData);
+                    if(WIFI_SendData(Socket, TxData, sizeof(TxData), &Datalen, WIFI_WRITE_TIMEOUT) != WIFI_STATUS_OK) {
+                        printf("> ERROR : Failed to send Data.\n");   
+                    } 
+                }
+            } else {
+                printf("> ERROR : Failed to Receive Data.\n");  
+            }
+        }
+    }
+}
+
+
+int update_flag=0;
+void update_state()
+{
+ update_flag++;
+ printf("%d\n",update_flag);
+}