A S / EthernetInterface

1. Reduce the size of the heap memory to reduce the amount of memory usage 2. Change the TCP segment size 3. Disable UDP + DHCP + DNS 4. Change the configurations of the TCP/IP thread

Dependencies:   Socket lwip-eth lwip-sys lwip

Dependents:   aos_mbed

Fork of EthernetInterface by mbed official

Diff: EthernetInterface.cpp

Revision:
36:5118a7657c6d
Parent:
35:cba86db5ab96
--- a/EthernetInterface.cpp	Wed Oct 09 12:00:18 2013 +0100
+++ b/EthernetInterface.cpp	Sun Feb 02 10:46:57 2014 +0000
@@ -111,8 +111,9 @@
     
     int inited;
     if (use_dhcp) {
+        #if LWIP_DHCP
         dhcp_start(&lpcNetif);
-        
+        #endif
         // Wait for an IP Address
         // -1: error, 0: timeout
         inited = netif_up.wait(timeout_ms);
@@ -128,8 +129,10 @@
 
 int EthernetInterface::disconnect() {
     if (use_dhcp) {
+        #if LWIP_DHCP
         dhcp_release(&lpcNetif);
         dhcp_stop(&lpcNetif);
+        #endif
     } else {
         netif_set_down(&lpcNetif);
     }