Diff: main.cpp

Revision:

0:9f56faada164

Child:

1:9c712ebb90d3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun May 05 14:58:32 2019 +0000
@@ -0,0 +1,59 @@
+#include "mbed.h" //MbedOS 5.12.2
+#include "EthernetInterface.h" 
+
+#define ADDRESS "10.0.1.14" //Here place IP of your PC
+#define PORT 20
+
+Thread thread;
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+
+void udpEcho(){
+    EthernetInterface eth;
+    UDPSocket sock; 
+    SocketAddress addr(0,PORT);
+    eth.connect(); 
+    const char *ip = eth.get_ip_address();
+    // Check ip
+    if(ip){ 
+        printf("IP address is: %s\n", ip);
+        sock.open(&eth);
+        sock.bind(PORT);
+        char buffer[] = "Hello World, UDP Echo server"; 
+        printf("Sending message '%s' to server (%s)\n",buffer,ip); 
+        sock.sendto(ADDRESS, PORT, buffer, sizeof(buffer));
+        printf("Waiting for message...\n");
+        
+        while(1) {
+            char in_buffer[80];
+            int n = sock.recvfrom(&addr, &in_buffer, sizeof(in_buffer)); 
+            in_buffer[n] = '\0'; 
+            printf("Recieved: %s\n", in_buffer);
+            
+            char out_buffer[80];
+            n = sprintf(out_buffer,"Echo - %s", in_buffer);
+            out_buffer[n] = '\0';
+            printf("Send back: %s\n", out_buffer);
+            sock.sendto(addr.get_ip_address(),PORT , out_buffer, sizeof(out_buffer));
+            led2 =! led2;
+        } 
+        /*sock.close();
+        eth.disconnect(); */
+    }else{
+        printf("No IP\n");
+        //eth.disconnect();
+        printf("Thread end\n");
+    }
+}
+
+
+int main() { 
+    printf("Mbed UDP socket starting...\n");
+    thread.start(callback(udpEcho));
+    wait(1);
+    
+    while(1) {
+        led1 =! led1;
+        wait(1);
+    } 
+}  
\ No newline at end of file