v1.5.3 using built-in ESP32 MAC Address

#### Releases v1.5.3 1. Using `built-in ESP32 MAC Address` 2. Increase default `SPI_CLOCK_MHZ` clock to 20MHz from 8MHz
khoih-prog · Jan 11, 2023 · 7b3055e · 7b3055e
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diff --git a/.codespellrc b/.codespellrc
@@ -0,0 +1,7 @@
+# See: https://github.com/codespell-project/codespell#using-a-config-file
+[codespell]
+# In the event of a false positive, add the problematic word, in all lowercase, to a comma-separated list here:
+ignore-words-list = ,
+check-filenames =
+check-hidden =
+skip = ./.git,./src,./examples,./Packages_Patches,./LibraryPatches
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -10,27 +10,34 @@ However, before reporting a bug please check through the following:
 
 If you don't find anything, please [open a new issue](https://github.com/khoih-prog/WebServer_ESP32_ENC/issues/new).
 
+---
+
 ### How to submit a bug report
 
 Please ensure to specify the following:
 
 * Arduino IDE version (e.g. 1.8.19) or Platform.io version
-* Board Core Version (e.g. ESP32 core v2.0.5)
+* Board type (e.g. ESP32_DEV)
+* Board Core Version (e.g. ESP32 core v2.0.6)
 * Contextual information (e.g. what you were trying to achieve)
 * Simplest possible steps to reproduce
 * Anything that might be relevant in your opinion, such as:
   * Operating system (Windows, Ubuntu, etc.) and the output of `uname -a`
   * Network configuration
 
 
+Please be educated, civilized and constructive as you've always been. Disrespective posts against [GitHub Code of Conduct](https://docs.github.com/en/site-policy/github-terms/github-event-code-of-conduct) will be ignored and deleted.
+
+---
+
 ### Example
 
 ```
 Arduino IDE version: 1.8.19
-WT32_ETH01 board
-ESP32 core v2.0.5
+ESP32_DEV board
+ESP32 core v2.0.6
 OS: Ubuntu 20.04 LTS
-Linux xy-Inspiron-3593 5.15.0-53-generic #59~20.04.1-Ubuntu SMP Thu Oct 20 15:10:22 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
+Linux xy-Inspiron-3593 5.15.0-57-generic #63~20.04.1-Ubuntu SMP Wed Nov 30 13:40:16 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
 
 Context:
 I encountered a crash while using this library

diff --git a/changelog.md b/changelog.md
@@ -8,20 +8,27 @@
 <a href="https://www.buymeacoffee.com/khoihprog6" title="Donate to my libraries using BuyMeACoffee"><img src="https://cdn.buymeacoffee.com/buttons/v2/default-yellow.png" alt="Donate to my libraries using BuyMeACoffee" style="height: 50px !important;width: 181px !important;" ></a>
 <a href="https://www.buymeacoffee.com/khoihprog6" title="Donate to my libraries using BuyMeACoffee"><img src="https://img.shields.io/badge/buy%20me%20a%20coffee-donate-orange.svg?logo=buy-me-a-coffee&logoColor=FFDD00" style="height: 20px !important;width: 200px !important;" ></a>
 
+
 ---
 ---
 
 ## Table of Contents
 
 
 * [Changelog](#changelog)
+  * [Releases v1.5.3](#releases-v153)
   * [Releases v1.5.1](#releases-v151)
 
 ---
 ---
 
 ## Changelog
 
+#### Releases v1.5.3
+
+1. Using `built-in ESP32 MAC Address`
+2. Increase default `SPI_CLOCK_MHZ` clock to 20MHz from 8MHz
+
 #### Releases v1.5.1
 
 1. Initial coding to support ESP32 boards using ENC28J60 LwIP Ethernet. Sync with [WebServer_WT32_ETH01 v1.5.1](https://github.com/khoih-prog/WebServer_WT32_ETH01)

diff --git a/examples/AdvancedWebServer/AdvancedWebServer.ino b/examples/AdvancedWebServer/AdvancedWebServer.ino
@@ -50,8 +50,8 @@
 //////////////////////////////////////////////////////////
 
 // Optional values to override default settings
-//#define SPI_HOST            1
-//#define SPI_CLOCK_MHZ       8
+//#define ETH_SPI_HOST        SPI3_HOST
+//#define SPI_CLOCK_MHZ       20
 
 // Must connect INT to GPIOxx or not working
 //#define INT_GPIO            4
@@ -208,16 +208,14 @@ void setup()
 
   // start the ethernet connection and the server:
   // Use DHCP dynamic IP and random mac
-  uint16_t index = millis() % NUMBER_OF_MAC;
-
   //bool begin(int MISO_GPIO, int MOSI_GPIO, int SCLK_GPIO, int CS_GPIO, int INT_GPIO, int SPI_CLOCK_MHZ,
-  //           int SPI_HOST, uint8_t *ENC28J60_Mac = ENC28J60_Default_Mac);
-  //ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, SPI_HOST );
-  ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, SPI_HOST, mac[index] );
+  //           int SPI_HOST, uint8_t *W6100_Mac = W6100_Default_Mac);
+  ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST );
+  //ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST, mac[millis() % NUMBER_OF_MAC] );
 
   // Static IP, leave without this line to get IP via DHCP
   //bool config(IPAddress local_ip, IPAddress gateway, IPAddress subnet, IPAddress dns1 = 0, IPAddress dns2 = 0);
-  ETH.config(myIP, myGW, mySN, myDNS);
+  //ETH.config(myIP, myGW, mySN, myDNS);
 
   ESP32_ENC_waitForConnect();
 

diff --git a/examples/HelloServer/HelloServer.ino b/examples/HelloServer/HelloServer.ino
@@ -22,8 +22,8 @@
 //////////////////////////////////////////////////////////
 
 // Optional values to override default settings
-//#define SPI_HOST            1
-//#define SPI_CLOCK_MHZ       8
+//#define ETH_SPI_HOST        SPI3_HOST
+//#define SPI_CLOCK_MHZ       20
 
 // Must connect INT to GPIOxx or not working
 //#define INT_GPIO            4
@@ -131,12 +131,10 @@ void setup()
 
   // start the ethernet connection and the server:
   // Use DHCP dynamic IP and random mac
-  uint16_t index = millis() % NUMBER_OF_MAC;
-
   //bool begin(int MISO_GPIO, int MOSI_GPIO, int SCLK_GPIO, int CS_GPIO, int INT_GPIO, int SPI_CLOCK_MHZ,
-  //           int SPI_HOST, uint8_t *ENC28J60_Mac = ENC28J60_Default_Mac);
-  //ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, SPI_HOST );
-  ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, SPI_HOST, mac[index] );
+  //           int SPI_HOST, uint8_t *W6100_Mac = W6100_Default_Mac);
+  ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST );
+  //ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST, mac[millis() % NUMBER_OF_MAC] );
 
   // Static IP, leave without this line to get IP via DHCP
   //bool config(IPAddress local_ip, IPAddress gateway, IPAddress subnet, IPAddress dns1 = 0, IPAddress dns2 = 0);

diff --git a/examples/HelloServer2/HelloServer2.ino b/examples/HelloServer2/HelloServer2.ino
@@ -22,8 +22,8 @@
 //////////////////////////////////////////////////////////
 
 // Optional values to override default settings
-//#define SPI_HOST            1
-//#define SPI_CLOCK_MHZ       8
+//#define ETH_SPI_HOST        SPI3_HOST
+//#define SPI_CLOCK_MHZ       20
 
 // Must connect INT to GPIOxx or not working
 //#define INT_GPIO            4
@@ -131,12 +131,10 @@ void setup()
 
   // start the ethernet connection and the server:
   // Use DHCP dynamic IP and random mac
-  uint16_t index = millis() % NUMBER_OF_MAC;
-
   //bool begin(int MISO_GPIO, int MOSI_GPIO, int SCLK_GPIO, int CS_GPIO, int INT_GPIO, int SPI_CLOCK_MHZ,
-  //           int SPI_HOST, uint8_t *ENC28J60_Mac = ENC28J60_Default_Mac);
-  //ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, SPI_HOST );
-  ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, SPI_HOST, mac[index] );
+  //           int SPI_HOST, uint8_t *W6100_Mac = W6100_Default_Mac);
+  ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST );
+  //ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST, mac[millis() % NUMBER_OF_MAC] );
 
   // Static IP, leave without this line to get IP via DHCP
   //bool config(IPAddress local_ip, IPAddress gateway, IPAddress subnet, IPAddress dns1 = 0, IPAddress dns2 = 0);

diff --git a/examples/HttpBasicAuth/HttpBasicAuth.ino b/examples/HttpBasicAuth/HttpBasicAuth.ino
@@ -22,8 +22,8 @@
 //////////////////////////////////////////////////////////
 
 // Optional values to override default settings
-//#define SPI_HOST            1
-//#define SPI_CLOCK_MHZ       8
+//#define ETH_SPI_HOST        SPI3_HOST
+//#define SPI_CLOCK_MHZ       20
 
 // Must connect INT to GPIOxx or not working
 //#define INT_GPIO            4
@@ -105,12 +105,10 @@ void setup()
 
   // start the ethernet connection and the server:
   // Use DHCP dynamic IP and random mac
-  uint16_t index = millis() % NUMBER_OF_MAC;
-
   //bool begin(int MISO_GPIO, int MOSI_GPIO, int SCLK_GPIO, int CS_GPIO, int INT_GPIO, int SPI_CLOCK_MHZ,
-  //           int SPI_HOST, uint8_t *ENC28J60_Mac = ENC28J60_Default_Mac);
-  //ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, SPI_HOST );
-  ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, SPI_HOST, mac[index] );
+  //           int SPI_HOST, uint8_t *W6100_Mac = W6100_Default_Mac);
+  ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST );
+  //ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST, mac[millis() % NUMBER_OF_MAC] );
 
   // Static IP, leave without this line to get IP via DHCP
   //bool config(IPAddress local_ip, IPAddress gateway, IPAddress subnet, IPAddress dns1 = 0, IPAddress dns2 = 0);

diff --git a/examples/MQTTClient_Auth/MQTTClient_Auth.ino b/examples/MQTTClient_Auth/MQTTClient_Auth.ino
@@ -35,8 +35,8 @@
 //////////////////////////////////////////////////////////
 
 // Optional values to override default settings
-//#define SPI_HOST            1
-//#define SPI_CLOCK_MHZ       8
+//#define ETH_SPI_HOST        SPI3_HOST
+//#define SPI_CLOCK_MHZ       20
 
 // Must connect INT to GPIOxx or not working
 //#define INT_GPIO            4
@@ -188,12 +188,10 @@ void setup()
 
   // start the ethernet connection and the server:
   // Use DHCP dynamic IP and random mac
-  uint16_t index = millis() % NUMBER_OF_MAC;
-
   //bool begin(int MISO_GPIO, int MOSI_GPIO, int SCLK_GPIO, int CS_GPIO, int INT_GPIO, int SPI_CLOCK_MHZ,
-  //           int SPI_HOST, uint8_t *ENC28J60_Mac = ENC28J60_Default_Mac);
-  //ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, SPI_HOST );
-  ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, SPI_HOST, mac[index] );
+  //           int SPI_HOST, uint8_t *W6100_Mac = W6100_Default_Mac);
+  ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST );
+  //ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST, mac[millis() % NUMBER_OF_MAC] );
 
   // Static IP, leave without this line to get IP via DHCP
   //bool config(IPAddress local_ip, IPAddress gateway, IPAddress subnet, IPAddress dns1 = 0, IPAddress dns2 = 0);

diff --git a/examples/MQTTClient_Basic/MQTTClient_Basic.ino b/examples/MQTTClient_Basic/MQTTClient_Basic.ino
@@ -36,8 +36,8 @@
 //////////////////////////////////////////////////////////
 
 // Optional values to override default settings
-//#define SPI_HOST            1
-//#define SPI_CLOCK_MHZ       8
+//#define ETH_SPI_HOST        SPI3_HOST
+//#define SPI_CLOCK_MHZ       20
 
 // Must connect INT to GPIOxx or not working
 //#define INT_GPIO            4
@@ -189,11 +189,10 @@ void setup()
 
   // start the ethernet connection and the server:
   // Use DHCP dynamic IP and random mac
-  uint16_t index = millis() % NUMBER_OF_MAC;
-
   //bool begin(int MISO_GPIO, int MOSI_GPIO, int SCLK_GPIO, int CS_GPIO, int INT_GPIO, int SPI_CLOCK_MHZ,
-  //           int SPI_HOST, uint8_t *ENC28J60_Mac = ENC28J60_Default_Mac);
-  //ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, SPI_HOST );
+  //           int SPI_HOST, uint8_t *W6100_Mac = W6100_Default_Mac);
+  ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST );
+  //ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST, mac[millis() % NUMBER_OF_MAC] );
   ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, SPI_HOST, mac[index] );
 
   // Static IP, leave without this line to get IP via DHCP

diff --git a/examples/MQTT_ThingStream/MQTT_ThingStream.ino b/examples/MQTT_ThingStream/MQTT_ThingStream.ino
@@ -38,8 +38,8 @@
 //////////////////////////////////////////////////////////
 
 // Optional values to override default settings
-//#define SPI_HOST            1
-//#define SPI_CLOCK_MHZ       8
+//#define ETH_SPI_HOST        SPI3_HOST
+//#define SPI_CLOCK_MHZ       20
 
 // Must connect INT to GPIOxx or not working
 //#define INT_GPIO            4
@@ -234,12 +234,10 @@ void setup()
 
   // start the ethernet connection and the server:
   // Use DHCP dynamic IP and random mac
-  uint16_t index = millis() % NUMBER_OF_MAC;
-
   //bool begin(int MISO_GPIO, int MOSI_GPIO, int SCLK_GPIO, int CS_GPIO, int INT_GPIO, int SPI_CLOCK_MHZ,
-  //           int SPI_HOST, uint8_t *ENC28J60_Mac = ENC28J60_Default_Mac);
-  //ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, SPI_HOST );
-  ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, SPI_HOST, mac[index] );
+  //           int SPI_HOST, uint8_t *W6100_Mac = W6100_Default_Mac);
+  ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST );
+  //ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST, mac[millis() % NUMBER_OF_MAC] );
 
   // Static IP, leave without this line to get IP via DHCP
   //bool config(IPAddress local_ip, IPAddress gateway, IPAddress subnet, IPAddress dns1 = 0, IPAddress dns2 = 0);

diff --git a/examples/PostServer/PostServer.ino b/examples/PostServer/PostServer.ino
@@ -22,8 +22,8 @@
 //////////////////////////////////////////////////////////
 
 // Optional values to override default settings
-//#define SPI_HOST            1
-//#define SPI_CLOCK_MHZ       8
+//#define ETH_SPI_HOST        SPI3_HOST
+//#define SPI_CLOCK_MHZ       20
 
 // Must connect INT to GPIOxx or not working
 //#define INT_GPIO            4
@@ -180,12 +180,10 @@ void setup()
 
   // start the ethernet connection and the server:
   // Use DHCP dynamic IP and random mac
-  uint16_t index = millis() % NUMBER_OF_MAC;
-
   //bool begin(int MISO_GPIO, int MOSI_GPIO, int SCLK_GPIO, int CS_GPIO, int INT_GPIO, int SPI_CLOCK_MHZ,
-  //           int SPI_HOST, uint8_t *ENC28J60_Mac = ENC28J60_Default_Mac);
-  //ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, SPI_HOST );
-  ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, SPI_HOST, mac[index] );
+  //           int SPI_HOST, uint8_t *W6100_Mac = W6100_Default_Mac);
+  ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST );
+  //ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST, mac[millis() % NUMBER_OF_MAC] );
 
   // Static IP, leave without this line to get IP via DHCP
   //bool config(IPAddress local_ip, IPAddress gateway, IPAddress subnet, IPAddress dns1 = 0, IPAddress dns2 = 0);

diff --git a/examples/SimpleAuthentication/SimpleAuthentication.ino b/examples/SimpleAuthentication/SimpleAuthentication.ino
@@ -22,8 +22,8 @@
 //////////////////////////////////////////////////////////
 
 // Optional values to override default settings
-//#define SPI_HOST            1
-//#define SPI_CLOCK_MHZ       8
+//#define ETH_SPI_HOST        SPI3_HOST
+//#define SPI_CLOCK_MHZ       20
 
 // Must connect INT to GPIOxx or not working
 //#define INT_GPIO            4
@@ -224,12 +224,10 @@ void setup()
 
   // start the ethernet connection and the server:
   // Use DHCP dynamic IP and random mac
-  uint16_t index = millis() % NUMBER_OF_MAC;
-
   //bool begin(int MISO_GPIO, int MOSI_GPIO, int SCLK_GPIO, int CS_GPIO, int INT_GPIO, int SPI_CLOCK_MHZ,
-  //           int SPI_HOST, uint8_t *ENC28J60_Mac = ENC28J60_Default_Mac);
-  //ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, SPI_HOST );
-  ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, SPI_HOST, mac[index] );
+  //           int SPI_HOST, uint8_t *W6100_Mac = W6100_Default_Mac);
+  ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST );
+  //ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST, mac[millis() % NUMBER_OF_MAC] );
 
   // Static IP, leave without this line to get IP via DHCP
   //bool config(IPAddress local_ip, IPAddress gateway, IPAddress subnet, IPAddress dns1 = 0, IPAddress dns2 = 0);

diff --git a/examples/UdpNTPClient/UdpNTPClient.ino b/examples/UdpNTPClient/UdpNTPClient.ino
@@ -27,8 +27,8 @@
 //////////////////////////////////////////////////////////
 
 // Optional values to override default settings
-//#define SPI_HOST            1
-//#define SPI_CLOCK_MHZ       8
+//#define ETH_SPI_HOST        SPI3_HOST
+//#define SPI_CLOCK_MHZ       20
 
 // Must connect INT to GPIOxx or not working
 //#define INT_GPIO            4
@@ -142,12 +142,10 @@ void setup()
 
   // start the ethernet connection and the server:
   // Use DHCP dynamic IP and random mac
-  uint16_t index = millis() % NUMBER_OF_MAC;
-
   //bool begin(int MISO_GPIO, int MOSI_GPIO, int SCLK_GPIO, int CS_GPIO, int INT_GPIO, int SPI_CLOCK_MHZ,
-  //           int SPI_HOST, uint8_t *ENC28J60_Mac = ENC28J60_Default_Mac);
-  //ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, SPI_HOST );
-  ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, SPI_HOST, mac[index] );
+  //           int SPI_HOST, uint8_t *W6100_Mac = W6100_Default_Mac);
+  ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST );
+  //ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST, mac[millis() % NUMBER_OF_MAC] );
 
   // Static IP, leave without this line to get IP via DHCP
   //bool config(IPAddress local_ip, IPAddress gateway, IPAddress subnet, IPAddress dns1 = 0, IPAddress dns2 = 0);

diff --git a/examples/UdpSendReceive/UdpSendReceive.ino b/examples/UdpSendReceive/UdpSendReceive.ino
@@ -22,8 +22,8 @@
 //////////////////////////////////////////////////////////
 
 // Optional values to override default settings
-//#define SPI_HOST            1
-//#define SPI_CLOCK_MHZ       8
+//#define ETH_SPI_HOST        SPI3_HOST
+//#define SPI_CLOCK_MHZ       20
 
 // Must connect INT to GPIOxx or not working
 //#define INT_GPIO            4
@@ -138,12 +138,10 @@ void setup()
 
   // start the ethernet connection and the server:
   // Use DHCP dynamic IP and random mac
-  uint16_t index = millis() % NUMBER_OF_MAC;
-
   //bool begin(int MISO_GPIO, int MOSI_GPIO, int SCLK_GPIO, int CS_GPIO, int INT_GPIO, int SPI_CLOCK_MHZ,
-  //           int SPI_HOST, uint8_t *ENC28J60_Mac = ENC28J60_Default_Mac);
-  //ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, SPI_HOST );
-  ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, SPI_HOST, mac[index] );
+  //           int SPI_HOST, uint8_t *W6100_Mac = W6100_Default_Mac);
+  ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST );
+  //ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST, mac[millis() % NUMBER_OF_MAC] );
 
   // Static IP, leave without this line to get IP via DHCP
   //bool config(IPAddress local_ip, IPAddress gateway, IPAddress subnet, IPAddress dns1 = 0, IPAddress dns2 = 0);