Update README.md

README.md

@@ -1,4 +1,4 @@
-# Ethernet3 v1.5
+# Ethernet3 v1.5.x
 Ethernet library for Arduino and Ethernetshield2 / WIZ550io / WIZ850io / USR-ES1 with Wiznet W5500 chip
 based on the Ethernet2 library of arduino.org
 
@@ -12,14 +12,18 @@ I added many new functionalities.
 
 You need to include
 
-    #include <Ethernet3.h> // instead Ethernet.h
-    #include <EthernetUdp3.h> // instead EthernetUdp.h for UDP functionality
+```cpp
+#include <Ethernet3.h> // instead Ethernet.h
+#include <EthernetUdp3.h> // instead EthernetUdp.h for UDP functionality
+```
 
 ## Custom Hostname
 
 For use with DHCP you can set a custom hostname, this must be done before Ethernet.begin(mac).
 
-	Ethernet.setHostname(char* hostname);
+```cpp
+Ethernet.setHostname(char* hostname);
+```
 
 ## PHY Configuration
 
@@ -32,14 +36,18 @@ FULL_DUPLEX_100,
 FULL_DUPLEX_100_AUTONEG,
 POWER_DOWN,
 ALL_AUTONEG (default)
-
-	Ethernet.phyMode(phyMode_t mode);
+
+```cpp
+Ethernet.phyMode(phyMode_t mode);
+```
 
 ## Wake on LAN
 
 You can set the Wake on LAN functionality
 
-	Ethernet.WoL(bool wol);
+```cpp
+Ethernet.WoL(bool wol);
+```
 
 ## what's next
 
@@ -51,7 +59,9 @@ A new NTP library is published https://github.com/sstaub/NTP
 
 The init of the Ethernetinterface changed, the ordner is now:
 
-	Ethernet.begin(mac, ip, subnet, gateway, dns);
+```cpp
+Ethernet.begin(mac, ip, subnet, gateway, dns);
+```
 
 This is more logical.
 
@@ -62,168 +72,204 @@ Multicast for udp added. You need to set the Multicast IP address and port to li
 
 ***example***
 
-    EthernetUdp udp
-    upd.beginMulticast(multicastIP, port);
+```cpp
+EthernetUdp udp
+upd.beginMulticast(multicastIP, port);
+```
 
 ## Unicast blocking support
 
 An Unicast blocking function is added to set and get the flag in a UDP socket.
 
-	void setUnicastBlock(bool block);
-	bool getUnicastBlock();
+```cpp
+void setUnicastBlock(bool block);
+bool getUnicastBlock();
+```
 
 ***example***
 
-	EthernetUDP udp;
-	udp.setUnicastBlock(true);
-
-	// to restore the value to standard
-
-	udp.setUnicastBlock(false);
-	udp.setUnicastBlock();
-
+```cpp
+EthernetUDP udp;
+udp.setUnicastBlock(true); // to restore the value to standard
+udp.setUnicastBlock(false);
+udp.setUnicastBlock();
+```
+
 ## PHY support
 
 Added some function to read the PHYCFGR in Ethernet3.
 
-    uint8_t phyState(); // returns the PHYCFGR
-    uint8_t link(); // returns the linkstate, 1 = linked, 0 = no link
-    const char* linkReport(); // returns the linkstate as a string
-    uint8_t speed(); // returns speed in MB/s
-    const char* speedReport(); // returns speed as a string
-    uint8_t duplex(); // returns duplex mode 0 = no link, 1 = Half Duplex, 2 = Full Duplex
-    const char* duplexReport(); // returns duplex mode as a string
+```cpp
+uint8_t phyState(); // returns the PHYCFGR
+uint8_t link(); // returns the linkstate, 1 = linked, 0 = no link
+const char* linkReport(); // returns the linkstate as a string
+uint8_t speed(); // returns speed in MB/s
+const char* speedReport(); // returns speed as a string
+uint8_t duplex(); // returns duplex mode 0 = no link, 1 = Half Duplex, 2 = Full Duplex
+const char* duplexReport(); // returns duplex mode as a string
+```
 
 ***example***
 
-    Serial.println(Ethernet.linkReport()); 
+```cpp
+Serial.println(Ethernet.linkReport()); 
+```
 
 ## MAC address
 
 Added some function to read the MAC address in Ethernet3, this is helpfull when you use Wiznet boards like WIZ550io with build in MAC address.
 
-    void macAddress(uint8_t mac[]); // get the MAC Address
-    const char* macAddressReport(); // returns the the MAC Address as a string
+```cpp
+void macAddress(uint8_t mac[]); // get the MAC Address
+const char* macAddressReport(); // returns the the MAC Address as a string
+```
 
 ***example***
 
-    uint8_t mac[6]; // array for mac address
-    Ethernet.macAddress(mac);
+```cpp
+uint8_t mac[6]; // array for mac address
+Ethernet.macAddress(mac);
+```
 
 ## Socket RAM-Size
 
 You can de- or increase the RAM-Size for the sockets, this must be done before Ethernet.begin(...)
 
 The possible socketnumbers are:
 
-    Ethernet.init(1); -> 1 Socket with 16k RX/TX buffer
-    Ethernet.init(2); -> 2 Socket with 8k RX/TX buffer
-    Ethernet.init(4); -> 4 Socket with 4k RX/TX buffer
-    Ethernet.init(); -> 8 Socket with 2k RX/TX buffer
+```cpp
+Ethernet.init(1); -> 1 Socket with 16k RX/TX buffer
+Ethernet.init(2); -> 2 Socket with 8k RX/TX buffer
+Ethernet.init(4); -> 4 Socket with 4k RX/TX buffer
+Ethernet.init(); -> 8 Socket with 2k RX/TX buffer
+```
 
 Be carefull with the MAX_SOCK_NUM in w5500.h , it cannot changed dynamicly.
 
 ***example***
 
-    Ethernet.init(4); // reduce to 4 Socket, each with 4k RX/TX buffer
-    Ethernet.begin();
+```cpp
+Ethernet.init(4); // reduce to 4 Socket, each with 4k RX/TX buffer
+Ethernet.begin();
+```
 
 ## RST and CS pin settings
 
 You can set the CS and (Hardware) RST (e.g. WIZ550io or USR-ES1), this must be done before Ethernet.begin(...)
 
 Standard is Pin 10 for CS and Pin 9 for RST
 
-    Ethernet.setCsPin(3); // set Pin 3 for CS
-    Ethernet.setRstPin(4); // set Pin 4 for RST
+```cpp
+Ethernet.setCsPin(3); // set Pin 3 for CS
+Ethernet.setRstPin(4); // set Pin 4 for RST
+```
 
 ***example***
 
-    Ethernet.setRstPin(); // set Pin 9 for RST
-    Ethernet.begin();
+```cpp
+Ethernet.setRstPin(); // set Pin 9 for RST
+Ethernet.begin();
+```
 
 ## Hard- and Software Reset
 
 Two new functions to make resets, Softreset can done only after Ethernet.begin(...)
 
 For Hardware Reset you need to set the Pin number.
 
-    Ethernet.softreset(); // performs a software reset
-    Ethernet.hardreset(); // performs a hardware reset
+```cpp
+Ethernet.softreset(); // performs a software reset
+Ethernet.hardreset(); // performs a hardware reset
+```
 
 ***example***
 
-    Ethernet.setRstPin(); // set Pin 9 for RST
-    Ethernet.begin();
-    Ethernet.hardreset();
+```cpp
+Ethernet.setRstPin(); // set Pin 9 for RST
+Ethernet.begin();
+Ethernet.hardreset();
+```
 
 ## Additional TCP settings in Ethernet
 
 There are two function to set and get the retransmission timeout and retry count, this helps to solve problem with TCP connections with unexpected very long timeouts.  Beware the the timeout value multiplier is 100us!
 
-	void Ethernet.setRtTimeOut(uint16_t timeout);
-	uint16_t Ethernet.getRtTimeOut();
-	void Ethernet.setRtCount(uint8_t count);
-	uint8_t Ethernet.getRtCount();
+```cpp
+void Ethernet.setRtTimeOut(uint16_t timeout);
+uint16_t Ethernet.getRtTimeOut();
+void Ethernet.setRtCount(uint8_t count);
+uint8_t Ethernet.getRtCount();
+```
 
 ***example***
+
+```cpp
+Ethernet.setRtTimeOut(500); // timeout 50ms
+Ethernet.setRtCount(2);
 
-	Ethernet.setRtTimeOut(500); // timeout 50ms
-	Ethernet.setRtCount(2);
-
-	// to restore the value to standard
-
-	Ethernet.setRtTimeOut();
-	Ethernet.setRtCount();
+// to restore the value to standard	
+Ethernet.setRtTimeOut();
+Ethernet.setRtCount();
+```
 
 ## Additional settings in EthernetClient
 
 ### ACK feature
 
 A 'No Delayed ACK' function is added to set and get the flag in a TCP socket.
 
-	void setNoDelayedACK(bool ack);
-	bool getNoDelayedACK();
+```cpp
+void setNoDelayedACK(bool ack);
+bool getNoDelayedACK();
+```
 
 ***example***
 
-	EthernetClient tcp;
-	tcp.setNoDelayedACK(true);
+```cpp
+EthernetClient tcp;
+tcp.setNoDelayedACK(true);
 	
-	// to restore the value to standard
-	
-	tcp.setNoDelayedACK(false);
-	tcp.setNoDelayedACK();
+// to restore the value to standard
+tcp.setNoDelayedACK(false);
+tcp.setNoDelayedACK();
+```
 
 ### remoteIP and remoteMAC adresses
 
 Two new functions for getting the IP and MAC address of a remote host.
 
-	void remoteIP(uint8_t *ip);
-	void remoteMAC(uint8_t *mac);
+```cpp
+void remoteIP(uint8_t *ip);
+void remoteMAC(uint8_t *mac);
+```
 	
 ## Additional settings in EthernetUDP
 
 ### Broadcast feature in EthernetUDP
 
 A Broadcast blocking function is added to set and get the flag in a UDP socket.
 
-	void setBroadcastBlock(bool block);
-	bool getBroadcastBlock();
+```cpp
+void setBroadcastBlock(bool block);
+bool getBroadcastBlock();
+```
 
 ***example***
 
-	EthernetUDP udp;
-	udp.setBroadcastBlock(true);
-
-	// to restore the value to standard
+```cpp
+EthernetUDP udp;
+udp.setBroadcastBlock(true);
 
-	udp.setBroadcastBlock(false);
-	udp.setBroadcastBlock();
+// to restore the value to standard
+udp.setBroadcastBlock(false);
+udp.setBroadcastBlock();
+```
 
 ### remoteIP and remoteMAC adresses
 
 Two new functions for getting the IP and MAC address of a remote host.
 
-	void remoteIP(uint8_t *ip);
-	void remoteMAC(uint8_t *mac);
+```cpp
+void remoteIP(uint8_t *ip);
+void remoteMAC(uint8_t *mac);
+```