Diff: main.cpp

Revision:

0:4e0f31b64b24

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Jan 19 08:31:23 2022 +0000
@@ -0,0 +1,96 @@
+    
+
+#include "mbed.h" //MbedOS 5.15
+#include "EthernetInterface.h"
+ 
+#define BUFFSIZE 50
+ 
+#define PORT            80
+ 
+DigitalOut led1(LED1);
+ 
+EthernetInterface net;
+TCPSocket server;
+TCPSocket* client;
+SocketAddress clientAddress;
+ 
+char   *in_buffer;
+char   *out_buffer;
+
+static const char*          mbedIP       = "192.168.0.32";  //IP 
+static const char*          mbedMask     = "255.255.255.0";  // Mask
+static const char*          mbedGateway  = "192.168.0.0";    //Gateway
+
+ 
+int main (void){
+    printf("TCP Echo starting...\n");
+    int net_stat;
+//#ifndef ROUTER
+    net.disconnect();
+    net_stat = net.set_network(mbedIP,mbedMask,mbedGateway); //set ip, mask, gateway to net
+    printf("set IP status: %i\n",net_stat);
+//#endif
+    net_stat = net.connect(); //connect to network
+    printf("connect status: %i\n",net_stat);
+ 
+    SocketAddress ip; //make socket for local ip address 
+    net.get_ip_address(&ip); //get a info from net
+    const char *p_ip = ip.get_ip_address();
+    printf("IP address: %s and Port: %d\n", p_ip ? p_ip : "None" , PORT );
+    SocketAddress mask;
+    net.get_netmask(&mask);
+    const char *p_mask = mask.get_ip_address();
+    printf("Netmask: %s\n", p_mask ? p_mask : "None");
+    SocketAddress gateway;
+    net.get_gateway(&gateway);
+    const char *p_gateway = gateway.get_ip_address();
+    printf("Gateway: %s\n", p_gateway ? p_gateway : "None");
+    
+    if(ip){ 
+        server.open(&net); //open a network socket using info of net
+        server.bind(PORT); //bind the socket to a port which receive data
+        server.listen(1); //prepare for incoming connections
+        while (1) {
+            
+            printf("Server bound and listening\n");
+            client = server.accept(); //wait until connection has done
+            client->set_blocking(false);
+            client->getpeername(&clientAddress);
+            const char *p_clientAddress = clientAddress.get_ip_address();
+            printf("Client connected from IP address: %s\n", p_clientAddress ? p_clientAddress : "None");
+            
+            bool b = true;
+            while (b) {
+                in_buffer = new char[BUFFSIZE];
+                int n = client->recv(in_buffer, BUFFSIZE);
+                
+                printf("%d\n", n);
+                
+                if (n == 0) {
+                    printf("Client disconnected\n");
+                    b = false;
+                }else if(n == NSAPI_ERROR_WOULD_BLOCK){
+                    //printf("data is not here\n");
+                }else{
+                    in_buffer[n] = '\0';
+                    printf("Received message from Client :'%s'\n", in_buffer);
+                    out_buffer = new char[BUFFSIZE];
+                    n = sprintf(out_buffer,"Echo - %s", in_buffer);
+                    
+                    printf("Sending echo to client\n");
+                    //client->send(out_buffer, n);
+                    led1 =! led1;
+                    delete []out_buffer;
+                }
+                led1 =! led1;
+                delete []in_buffer;
+                wait_us(10000);
+            }
+            client->close();
+        }
+    }else{
+            printf("No IP\n");
+            net.disconnect();
+            printf("Program end\n");
+    }
+}
\ No newline at end of file