WIZnet / WIZnet_Library

This is WIZnet Ethernet Interface using Hardware TCP/IP chip, W5500, W5200 and W5100. One of them can be selected by enabling it in wiznet.h.

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other drivers

for only W5500 / WIZ550io user, you could use

Import libraryW5500Interface

This is the Interface library for WIZnet W5500 chip which forked of EthernetInterfaceW5500, WIZnetInterface and WIZ550ioInterface. This library has simple name as "W5500Interface". and can be used for Wiz550io users also.

Last commit 28 Apr 2015 by W5500-Ethernet-Interface Makers

Diff: WIZnetInterface/WIZnet/W5200.cpp

Revision:
8:cb8808b47e69
Parent:
1:8138a268fbd2
--- a/WIZnetInterface/WIZnet/W5200.cpp	Sun May 31 10:06:41 2015 +0000
+++ b/WIZnetInterface/WIZnet/W5200.cpp	Sun May 31 10:25:40 2015 +0000
@@ -102,6 +102,18 @@
     return true;
 }
 
+
+bool WIZnet_Chip::is_fin_received(int socket)
+{
+    uint8_t tmpSn_SR;
+    tmpSn_SR = sreg<uint8_t>(socket, Sn_SR);
+    // packet sending is possible, when state is SOCK_CLOSE_WAIT.
+    if (tmpSn_SR == SOCK_CLOSE_WAIT) {
+        return true;
+    }
+    return false;
+}
+
 bool WIZnet_Chip::gethostbyname(const char* host, uint32_t* ip)
 {
     uint32_t addr = str_to_ip(host);
@@ -171,7 +183,15 @@
     t.reset();
     t.start();
     while(1) {
-        int size = sreg<uint16_t>(socket, Sn_RX_RSR);
+        //int size = sreg<uint16_t>(socket, Sn_RX_RSR);
+        // during the reading Sn_RX_RXR, it has the possible change of this register.
+        // so read twice and get same value then use size information.
+        int size, size2;
+        do {
+            size = sreg<uint16_t>(socket, Sn_RX_RSR);
+            size2 = sreg<uint16_t>(socket, Sn_RX_RSR);
+        } while (size != size2);
+
         if (size > req_size) {
             return size;
         }
@@ -191,7 +211,15 @@
     t.reset();
     t.start();
     while(1) {
-        int size = sreg<uint16_t>(socket, Sn_TX_FSR);
+        //int size = sreg<uint16_t>(socket, Sn_TX_FSR);
+        // during the reading Sn_TX_FSR, it has the possible change of this register.
+        // so read twice and get same value then use size information.
+        int size, size2;
+        do {
+            size = sreg<uint16_t>(socket, Sn_TX_FSR);
+            size2 = sreg<uint16_t>(socket, Sn_TX_FSR);
+        } while (size != size2);
+        
         if (size > req_size) {
             return size;
         }