Diff: main.cpp

Revision:

1:29bb0a32f61d

Parent:

0:8823772081cb

Child:

2:6bbdab30a1c1

--- a/main.cpp	Fri Jun 30 20:42:13 2017 +0000
+++ b/main.cpp	Sat Jul 01 08:16:18 2017 +0000
@@ -1,16 +1,34 @@
+/*
+ * UIPEthernet UdpServer example.
+ *
+ * UIPEthernet is a TCP/IP stack that can be used with an enc28j60 based
+ * Ethernet-shield.
+ *
+ * UIPEthernet uses the fine uIP stack by Adam Dunkels <adam@sics.se>
+ *
+ *      -----------------
+ *
+ * This UdpServer example sets up a udp-server at 192.168.1.181 on port 7 to
+ * send packet via upd to test
+ *
+ * Copyright (C) 2013 by Norbert Truchsess (norbert.truchsess@t-online.de)
+ *
+ * Modified (ported to mbed) by Zoltan Hudak
+ *
+ */
 #include "mbed.h"
 #include "UIPEthernet.h"
-#include "UIPUdp.h"
 
 // MAC address must be unique within the connected network. Modify as appropriate.
-const uint8_t    MY_MAC[6] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05 };
+const uint8_t   MY_MAC[6] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05 };
 // IP address must be unique and compatible with your network.
-const IPAddress  MY_IP(192, 168, 1, 181);
-const uint16_t   MY_PORT = 7;
+const IPAddress MY_IP(192, 168, 1, 181);
+const uint16_t  MY_PORT = 7;
+const char*     message = "Hello World from mbed!";
 
-Serial           pc(USBTX, USBRX);
-UIPEthernet      uIPEthernet(D11, D12, D13, D10);    // mosi, miso, sck, cs
-UIPUDP           udp;
+Serial          pc(USBTX, USBRX);
+UIPEthernet     uIPEthernet(D11, D12, D13, D10);    // mosi, miso, sck, cs
+UIPUDP          udp;
 
 /**
  * @brief
@@ -20,33 +38,38 @@
  */
 int main(void) {
     uIPEthernet.begin(MY_MAC, MY_IP);
+
     IPAddress   localIP = uIPEthernet.localIP();
     pc.printf("Local IP = %s\r\n", localIP.toString());
     pc.printf("Initialization ");
-    if(udp.begin(MY_PORT))
+    if (udp.begin(MY_PORT))
         pc.printf("succeeded.\r\n");
     else
         pc.printf("failed.\r\n");
 
-    while(1) {
+    while (1) {
+        int success;
         int size = udp.parsePacket();
-        if(size > 0) {
+
+        if (size > 0) {
             do {
                 char*   msg = (char*)malloc(size + 1);
                 int     len = udp.read(msg, size + 1);
                 msg[len] = 0;
-            } while((size = udp.available()) > 0);
+                printf("received: '%s", msg);
+                free(msg);
+            } while ((size = udp.available()) > 0);
 
             //finish reading this packet:
             udp.flush();
+            printf("'\r\n");
 
-            int success;
             do {
                 //send new packet back to ip/port of client. This also
                 //configures the current connection to ignore packets from
                 //other clients!
                 success = udp.beginPacket(udp.remoteIP(), udp.remotePort());
-                if(success)
+                if (success)
                     pc.printf("beginPacket: succeeded%\r\n");
                 else
                     pc.printf("beginPacket: failed%\r\n");
@@ -54,17 +77,16 @@
                 //beginPacket fails if remote ethaddr is unknown. In this case an
                 //arp-request is send out first and beginPacket succeeds as soon
                 //the arp-response is received.
-            } while(!success);
+            } while (!success);
 
-            char*   message = "Hello World from mbed";
             success = udp.write((uint8_t*)message, strlen(message));
 
-            if(success)
+            if (success)
                 pc.printf("bytes written: %d\r\n", success);
 
             success = udp.endPacket();
 
-            if(success)
+            if (success)
                 pc.printf("endPacket: succeeded%\r\n");
             else
                 pc.printf("endPacket: failed%\r\n");
@@ -72,7 +94,7 @@
             udp.stop();
 
             //restart with new connection to receive packets from other clients
-            if(udp.begin(MY_PORT))
+            if (udp.begin(MY_PORT))
                 pc.printf("restart connection: succeeded%\r\n");
             else
                 pc.printf("restart connection: failed%\r\n");