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.

Dependents:   Embedded_web EmailButton EmailButton HTTPClient_Weather ... more

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

Files at this revision

API Documentation at this revision

Revision 4:37a5586c4f64, committed 2014-08-20

Comitter:
Bongjun
Date:
Wed Aug 20 02:17:02 2014 +0000
Parent:
3:48348a6eaa72
Child:
5:89edb39d8707
Commit message:
change some code block in W5500.cpp which is related to Sn_RX_RSR, Sn_TX_FSR

Changed in this revision

WIZnetInterface/WIZnet/W5500.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/WIZnetInterface/WIZnet/W5500.cpp	Mon Jul 21 05:35:40 2014 +0000
+++ b/WIZnetInterface/WIZnet/W5500.cpp	Wed Aug 20 02:17:02 2014 +0000
@@ -189,7 +189,15 @@
     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;
         }
@@ -209,7 +217,15 @@
     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;
         }