From 3c2036a57795c883e1bbfcc89aaadef783f8ed4c Mon Sep 17 00:00:00 2001
From: Victor <>
Date: Thu, 23 Dec 2021 13:37:21 +0100
Subject: [PATCH 01/14] Added enhanced name updated toolchain version

---
 boards.txt   | 4 ++--
 platform.txt | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/boards.txt b/boards.txt
index 55037861..2708af7c 100644
--- a/boards.txt
+++ b/boards.txt
@@ -1,5 +1,5 @@
 
-arduino_due_x_dbg.name=Arduino Due (Programming Port)
+arduino_due_x_dbg.name=Arduino Due Enhanced (Programming Port)
 arduino_due_x_dbg.vid.0=0x2341
 arduino_due_x_dbg.pid.0=0x003d
 arduino_due_x_dbg.vid.1=0x2A03
@@ -23,7 +23,7 @@ arduino_due_x_dbg.build.variant_system_lib=libsam_sam3x8e_gcc_rel.a
 arduino_due_x_dbg.build.vid=0x2341
 arduino_due_x_dbg.build.pid=0x003e
 
-arduino_due_x.name=Arduino Due (Native USB Port)
+arduino_due_x.name=Arduino Due Enhanced (Native USB Port)
 arduino_due_x.vid.0=0x2341
 arduino_due_x.pid.0=0x003e
 arduino_due_x.vid.1=0x2A03
diff --git a/platform.txt b/platform.txt
index 5a330240..d3b68297 100644
--- a/platform.txt
+++ b/platform.txt
@@ -17,7 +17,7 @@ compiler.warning_flags.default=
 compiler.warning_flags.more=-Wall
 compiler.warning_flags.all=-Wall -Wextra
 
-compiler.path={runtime.tools.arm-none-eabi-gcc-4.8.3-2014q1.path}/bin/
+compiler.path={runtime.tools.arm-none-eabi-gcc-10.3-2021.10.path}/bin/
 compiler.c.cmd=arm-none-eabi-gcc
 compiler.c.flags=-c -g -Os {compiler.warning_flags} -std=gnu11 -ffunction-sections -fdata-sections -nostdlib --param max-inline-insns-single=500 -Dprintf=iprintf -MMD
 compiler.c.elf.cmd=arm-none-eabi-gcc

From fe23ca6c37a4787e7fae39f765145cabaf228c6a Mon Sep 17 00:00:00 2001
From: Victor <chavez-bermudez@fh-aachen.de>
Date: Thu, 23 Dec 2021 15:34:56 +0100
Subject: [PATCH 02/14] added first support for Serial 4 (i.e., USART2)

---
 cores/arduino/UARTClass.cpp        | 26 +++++++++++++++++++++++++-
 cores/arduino/UARTClass.h          |  7 ++++++-
 variants/arduino_due_x/variant.cpp | 20 ++++++++++++++++++--
 variants/arduino_due_x/variant.h   |  5 +++--
 4 files changed, 52 insertions(+), 6 deletions(-)

diff --git a/cores/arduino/UARTClass.cpp b/cores/arduino/UARTClass.cpp
index 36de1358..4ac877a5 100644
--- a/cores/arduino/UARTClass.cpp
+++ b/cores/arduino/UARTClass.cpp
@@ -66,6 +66,18 @@ void UARTClass::init(const uint32_t dwBaudRate, const uint32_t modeReg)
   // Configure interrupts
   _pUart->UART_IDR = 0xFFFFFFFF;
   _pUart->UART_IER = UART_IER_RXRDY | UART_IER_OVRE | UART_IER_FRAME;
+  
+  /*
+    Originally USART2 is used as ADC.
+    Override this configuration if user has initialized USART2 (serial4)
+    This means that the ADC functionality will no longer work
+    TODO: Restore functionality when calling End
+  */
+  if((Usart*)_pUart == USART2)
+  {
+    PIOB->PIO_ABSR = (0x0u);
+    PIOD->PIO_ABSR = PIO_ABSR_P4 | PIO_ABSR_P5;
+  }
 
   // Enable UART interrupt in NVIC
   NVIC_EnableIRQ(_dwIrq);
@@ -172,7 +184,14 @@ void UARTClass::IrqHandler( void )
 
   // Did we receive data?
   if ((status & UART_SR_RXRDY) == UART_SR_RXRDY)
-    _rx_buffer->store_char(_pUart->UART_RHR);
+  {
+    uint8_t uart_rx_frame=_pUart->UART_RHR;
+    _rx_buffer->store_char(uart_rx_frame);
+    if(pRx_irq_cb != nullptr)
+    {
+        pRx_irq_cb(uart_rx_frame,rx_irq_args);
+    }
+  }
 
   // Do we need to keep sending data?
   if ((status & UART_SR_TXRDY) == UART_SR_TXRDY) 
@@ -196,3 +215,8 @@ void UARTClass::IrqHandler( void )
   }
 }
 
+void UARTClass::attachRxIrq(rx_irq_cb cb,void * args)
+{
+    pRx_irq_cb = cb;
+    rx_irq_args = args;
+}
diff --git a/cores/arduino/UARTClass.h b/cores/arduino/UARTClass.h
index 3747d8be..a85fc384 100644
--- a/cores/arduino/UARTClass.h
+++ b/cores/arduino/UARTClass.h
@@ -59,7 +59,10 @@ class UARTClass : public HardwareSerial
     uint32_t getInterruptPriority();
 
     void IrqHandler(void);
-
+    typedef void (*rx_irq_cb)(uint8_t frame,void * args);
+    
+    void attachRxIrq(rx_irq_cb cb,void * args);
+    
     operator bool() { return true; }; // UART always active
 
   protected:
@@ -69,6 +72,8 @@ class UARTClass : public HardwareSerial
     RingBuffer *_tx_buffer;
 
     Uart* _pUart;
+    rx_irq_cb pRx_irq_cb;
+    void * rx_irq_args;
     IRQn_Type _dwIrq;
     uint32_t _dwId;
 
diff --git a/variants/arduino_due_x/variant.cpp b/variants/arduino_due_x/variant.cpp
index 7a0de80a..9a51026c 100644
--- a/variants/arduino_due_x/variant.cpp
+++ b/variants/arduino_due_x/variant.cpp
@@ -286,12 +286,12 @@ extern const PinDescription g_APinDescription[]=
   { PIOA, PIO_PA1A_CANRX0|PIO_PA0A_CANTX0, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, (PIN_ATTR_DIGITAL|PIN_ATTR_COMBO), NO_ADC,  NO_ADC, NOT_ON_PWM,  NOT_ON_TIMER },
   // 91 - CAN1 all pins
   { PIOB, PIO_PB15A_CANRX1|PIO_PB14A_CANTX1, ID_PIOB, PIO_PERIPH_A, PIO_DEFAULT, (PIN_ATTR_DIGITAL|PIN_ATTR_COMBO), NO_ADC, NO_ADC, NOT_ON_PWM,  NOT_ON_TIMER },
-
+  // 92 - USART2 (Serial4) all pins
+  { PIOB, PIO_PB20A_TXD2|PIO_PB21A_RXD2, ID_PIOB, PIO_PERIPH_B, PIO_DEFAULT, (PIN_ATTR_DIGITAL|PIN_ATTR_COMBO), NO_ADC, NO_ADC, NOT_ON_PWM, NOT_ON_TIMER },
   // END
   { NULL, 0, 0, PIO_NOT_A_PIN, PIO_DEFAULT, 0, NO_ADC, NO_ADC, NOT_ON_PWM, NOT_ON_TIMER }
 } ;
 
-
 uint8_t g_pinStatus[PINS_COUNT] = {0};
 
 #ifdef __cplusplus
@@ -321,9 +321,11 @@ void UART_Handler(void)
 RingBuffer rx_buffer2;
 RingBuffer rx_buffer3;
 RingBuffer rx_buffer4;
+RingBuffer rx_buffer5;
 RingBuffer tx_buffer2;
 RingBuffer tx_buffer3;
 RingBuffer tx_buffer4;
+RingBuffer tx_buffer5;
 
 USARTClass Serial1(USART0, USART0_IRQn, ID_USART0, &rx_buffer2, &tx_buffer2);
 void serialEvent1() __attribute__((weak));
@@ -334,6 +336,9 @@ void serialEvent2() { }
 USARTClass Serial3(USART3, USART3_IRQn, ID_USART3, &rx_buffer4, &tx_buffer4);
 void serialEvent3() __attribute__((weak));
 void serialEvent3() { }
+USARTClass Serial4(USART2, USART2_IRQn, ID_USART2, &rx_buffer5, &tx_buffer5);
+void serialEvent4() __attribute__((weak));
+void serialEvent4() { }
 
 // IT handlers
 void USART0_Handler(void)
@@ -351,6 +356,11 @@ void USART3_Handler(void)
   Serial3.IrqHandler();
 }
 
+void USART2_Handler(void)
+{
+  Serial4.IrqHandler();
+}
+
 // ----------------------------------------------------------------------------
 
 void serialEventRun(void)
@@ -359,6 +369,7 @@ void serialEventRun(void)
   if (Serial1.available()) serialEvent1();
   if (Serial2.available()) serialEvent2();
   if (Serial3.available()) serialEvent3();
+  if (Serial4.available()) serialEvent4();
 }
 
 // ----------------------------------------------------------------------------
@@ -415,6 +426,11 @@ void init( void )
     g_APinDescription[PINS_USART3].ulPinType,
     g_APinDescription[PINS_USART3].ulPin,
     g_APinDescription[PINS_USART3].ulPinConfiguration);
+  PIO_Configure(
+    g_APinDescription[PINS_USART4].pPort,
+    g_APinDescription[PINS_USART4].ulPinType,
+    g_APinDescription[PINS_USART4].ulPin,
+    g_APinDescription[PINS_USART4].ulPinConfiguration);    
 
   // Initialize USB pins
   PIO_Configure(
diff --git a/variants/arduino_due_x/variant.h b/variants/arduino_due_x/variant.h
index 922b40b4..39579b61 100644
--- a/variants/arduino_due_x/variant.h
+++ b/variants/arduino_due_x/variant.h
@@ -170,7 +170,8 @@ static const uint8_t SCL1 = PIN_WIRE1_SCL;
 #define PINS_USART1          (83u)
 // Serial3
 #define PINS_USART3          (84u)
-
+// Serial4
+#define PINS_USART4          (92u)
 /*
  * USB Interfaces
  */
@@ -252,7 +253,7 @@ extern UARTClass Serial;
 extern USARTClass Serial1;
 extern USARTClass Serial2;
 extern USARTClass Serial3;
-
+extern USARTClass Serial4;
 #endif
 
 // These serial port names are intended to allow libraries and architecture-neutral

From 928292e02f7f7f3ab3b67a8587584f498d38a39a Mon Sep 17 00:00:00 2001
From: vChavezB <47216966+vChavezB@users.noreply.github.com>
Date: Thu, 23 Dec 2021 18:15:38 +0100
Subject: [PATCH 03/14] Update UARTClass.cpp

---
 cores/arduino/UARTClass.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/cores/arduino/UARTClass.cpp b/cores/arduino/UARTClass.cpp
index 4ac877a5..e15066fa 100644
--- a/cores/arduino/UARTClass.cpp
+++ b/cores/arduino/UARTClass.cpp
@@ -75,8 +75,8 @@ void UARTClass::init(const uint32_t dwBaudRate, const uint32_t modeReg)
   */
   if((Usart*)_pUart == USART2)
   {
-    PIOB->PIO_ABSR = (0x0u);
-    PIOD->PIO_ABSR = PIO_ABSR_P4 | PIO_ABSR_P5;
+    /* Select Peripheral A for USART 2 pins */
+    PIOB->PIO_ABSR &= (~(PIO_PB20A_TXD2 | PIO_PB21A_RXD2)) ;
   }
 
   // Enable UART interrupt in NVIC

From 47c940a8a0a1b1d6c151a1ce5f9965372b2abd5f Mon Sep 17 00:00:00 2001
From: Victor <chavez-bermudez@fh-aachen.de>
Date: Thu, 23 Dec 2021 23:29:35 +0100
Subject: [PATCH 04/14] Fixed peripheral mistake

---
 cores/arduino/UARTClass.cpp        | 12 ------------
 variants/arduino_due_x/variant.cpp | 11 ++++++-----
 variants/arduino_due_x/variant.h   |  2 +-
 3 files changed, 7 insertions(+), 18 deletions(-)

diff --git a/cores/arduino/UARTClass.cpp b/cores/arduino/UARTClass.cpp
index e15066fa..9efbe083 100644
--- a/cores/arduino/UARTClass.cpp
+++ b/cores/arduino/UARTClass.cpp
@@ -67,18 +67,6 @@ void UARTClass::init(const uint32_t dwBaudRate, const uint32_t modeReg)
   _pUart->UART_IDR = 0xFFFFFFFF;
   _pUart->UART_IER = UART_IER_RXRDY | UART_IER_OVRE | UART_IER_FRAME;
   
-  /*
-    Originally USART2 is used as ADC.
-    Override this configuration if user has initialized USART2 (serial4)
-    This means that the ADC functionality will no longer work
-    TODO: Restore functionality when calling End
-  */
-  if((Usart*)_pUart == USART2)
-  {
-    /* Select Peripheral A for USART 2 pins */
-    PIOB->PIO_ABSR &= (~(PIO_PB20A_TXD2 | PIO_PB21A_RXD2)) ;
-  }
-
   // Enable UART interrupt in NVIC
   NVIC_EnableIRQ(_dwIrq);
 
diff --git a/variants/arduino_due_x/variant.cpp b/variants/arduino_due_x/variant.cpp
index 9a51026c..34ad3096 100644
--- a/variants/arduino_due_x/variant.cpp
+++ b/variants/arduino_due_x/variant.cpp
@@ -287,7 +287,7 @@ extern const PinDescription g_APinDescription[]=
   // 91 - CAN1 all pins
   { PIOB, PIO_PB15A_CANRX1|PIO_PB14A_CANTX1, ID_PIOB, PIO_PERIPH_A, PIO_DEFAULT, (PIN_ATTR_DIGITAL|PIN_ATTR_COMBO), NO_ADC, NO_ADC, NOT_ON_PWM,  NOT_ON_TIMER },
   // 92 - USART2 (Serial4) all pins
-  { PIOB, PIO_PB20A_TXD2|PIO_PB21A_RXD2, ID_PIOB, PIO_PERIPH_B, PIO_DEFAULT, (PIN_ATTR_DIGITAL|PIN_ATTR_COMBO), NO_ADC, NO_ADC, NOT_ON_PWM, NOT_ON_TIMER },
+  { PIOB, PIO_PB20A_TXD2|PIO_PB21A_RXD2, ID_PIOB, PIO_PERIPH_A, PIO_DEFAULT, (PIN_ATTR_DIGITAL|PIN_ATTR_COMBO), NO_ADC, NO_ADC, NOT_ON_PWM, NOT_ON_TIMER },
   // END
   { NULL, 0, 0, PIO_NOT_A_PIN, PIO_DEFAULT, 0, NO_ADC, NO_ADC, NOT_ON_PWM, NOT_ON_TIMER }
 } ;
@@ -426,11 +426,12 @@ void init( void )
     g_APinDescription[PINS_USART3].ulPinType,
     g_APinDescription[PINS_USART3].ulPin,
     g_APinDescription[PINS_USART3].ulPinConfiguration);
+    
   PIO_Configure(
-    g_APinDescription[PINS_USART4].pPort,
-    g_APinDescription[PINS_USART4].ulPinType,
-    g_APinDescription[PINS_USART4].ulPin,
-    g_APinDescription[PINS_USART4].ulPinConfiguration);    
+    g_APinDescription[PINS_USART2].pPort,
+    g_APinDescription[PINS_USART2].ulPinType,
+    g_APinDescription[PINS_USART2].ulPin,
+    g_APinDescription[PINS_USART2].ulPinConfiguration);    
 
   // Initialize USB pins
   PIO_Configure(
diff --git a/variants/arduino_due_x/variant.h b/variants/arduino_due_x/variant.h
index 39579b61..ad43b9e8 100644
--- a/variants/arduino_due_x/variant.h
+++ b/variants/arduino_due_x/variant.h
@@ -171,7 +171,7 @@ static const uint8_t SCL1 = PIN_WIRE1_SCL;
 // Serial3
 #define PINS_USART3          (84u)
 // Serial4
-#define PINS_USART4          (92u)
+#define PINS_USART2          (92u)
 /*
  * USB Interfaces
  */

From c0c002d9ef1845de4afb2ae11cb5ffeeb1e6d2dd Mon Sep 17 00:00:00 2001
From: vChavezB <47216966+vChavezB@users.noreply.github.com>
Date: Thu, 23 Dec 2021 23:42:39 +0100
Subject: [PATCH 05/14] Update README.md

---
 README.md | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 2faab39e..ce163c0e 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,12 @@
-# Arduino Core for SAM3X CPU
+# Enhanced Arduino Core for SAM3X CPU
+
+This repository is based from the [Arduio Sam SDK for cortex-m3](https://github.com/arduino/ArduinoCore-sam). The sdk was modified to include the following features which are not supported by the main repository:
+
+- Attachment of a callback function to the IRQ handler of USART/UART peripherals. This comes handy when you need to process data in real-time.
+- Addition of USART2 as Serial4.
+- Updated Compiler to version 10.3-2021.10 with a [modification](https://github.com/vChavezB/ArduinoBoards/blob/master/SAM3X/package_vchavezb_sam-enhanced.json) of the Arduino package "Arduino SAM Boards (32-bits ARM Cortex-M3)".
+
+The rest of this readme has been kept unmodified and is as-is from the original repo.
 
 This repository contains the source code and configuration files of the Arduino Core for Atmel's SAM3X processor (used on the [Arduino Due](https://www.arduino.cc/en/Main/ArduinoBoardDue) board).
 

From ba5df989fbb655e3998ecbfafd7b3cbfa06d18b5 Mon Sep 17 00:00:00 2001
From: vChavezB <47216966+vChavezB@users.noreply.github.com>
Date: Thu, 14 Jul 2022 15:01:49 +0200
Subject: [PATCH 06/14] Update new.cpp

overload for delete operator to compile code >C++14
---
 cores/arduino/new.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/cores/arduino/new.cpp b/cores/arduino/new.cpp
index f1897758..746bc338 100644
--- a/cores/arduino/new.cpp
+++ b/cores/arduino/new.cpp
@@ -34,3 +34,14 @@ void operator delete[](void * ptr) {
   free(ptr);
 }
 
+/*
+Fix for C++>14
+https://forum.arduino.cc/t/undefined-reference-to-operator-delete-void-unsigned-int/620428
+*/
+void operator delete(void* ptr, std::size_t) _GLIBCXX_USE_NOEXCEPT {
+    delete ptr;
+}
+
+void operator delete[](void* ptr, std::size_t) _GLIBCXX_USE_NOEXCEPT {
+    delete[] ptr;
+}

From 3cae31a44fbe289122a46ff1ae02d7a132cfd7c7 Mon Sep 17 00:00:00 2001
From: vChavezB <47216966+vChavezB@users.noreply.github.com>
Date: Thu, 14 Jul 2022 20:18:47 +0200
Subject: [PATCH 07/14] Update platform.txt

updated Compiler and  std version to latest (C17,C++20)
---
 platform.txt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/platform.txt b/platform.txt
index d3b68297..cab922ef 100644
--- a/platform.txt
+++ b/platform.txt
@@ -17,15 +17,15 @@ compiler.warning_flags.default=
 compiler.warning_flags.more=-Wall
 compiler.warning_flags.all=-Wall -Wextra
 
-compiler.path={runtime.tools.arm-none-eabi-gcc-10.3-2021.10.path}/bin/
+compiler.path={runtime.tools.arm-none-eabi-gcc-11.2.1-xpack.path}/bin/
 compiler.c.cmd=arm-none-eabi-gcc
-compiler.c.flags=-c -g -Os {compiler.warning_flags} -std=gnu11 -ffunction-sections -fdata-sections -nostdlib --param max-inline-insns-single=500 -Dprintf=iprintf -MMD
+compiler.c.flags=-c -g -Os {compiler.warning_flags} -std=gnu17 -ffunction-sections -fdata-sections -nostdlib --param max-inline-insns-single=500 -Dprintf=iprintf -MMD
 compiler.c.elf.cmd=arm-none-eabi-gcc
 compiler.c.elf.flags=-Os -Wl,--gc-sections
 compiler.S.cmd=arm-none-eabi-gcc
 compiler.S.flags=-c -g -x assembler-with-cpp -MMD
 compiler.cpp.cmd=arm-none-eabi-g++
-compiler.cpp.flags=-c -g -Os {compiler.warning_flags} -std=gnu++11 -ffunction-sections -fdata-sections -nostdlib -fno-threadsafe-statics --param max-inline-insns-single=500 -fno-rtti -fno-exceptions -MMD
+compiler.cpp.flags=-c -g -Os {compiler.warning_flags} -std=gnu++20 -ffunction-sections -fdata-sections -nostdlib -fno-threadsafe-statics --param max-inline-insns-single=500 -fno-rtti -fno-exceptions -MMD
 compiler.ar.cmd=arm-none-eabi-ar
 compiler.ar.flags=rcs
 compiler.objcopy.cmd=arm-none-eabi-objcopy

From 71d1612d8a589ac67c2c9bb6033124eb38e000d9 Mon Sep 17 00:00:00 2001
From: vChavezB <47216966+vChavezB@users.noreply.github.com>
Date: Thu, 14 Jul 2022 20:20:56 +0200
Subject: [PATCH 08/14] Update README.md

---
 README.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index ce163c0e..fef55f2d 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,8 @@ This repository is based from the [Arduio Sam SDK for cortex-m3](https://github.
 
 - Attachment of a callback function to the IRQ handler of USART/UART peripherals. This comes handy when you need to process data in real-time.
 - Addition of USART2 as Serial4.
-- Updated Compiler to version 10.3-2021.10 with a [modification](https://github.com/vChavezB/ArduinoBoards/blob/master/SAM3X/package_vchavezb_sam-enhanced.json) of the Arduino package "Arduino SAM Boards (32-bits ARM Cortex-M3)".
+- Updated GCC to version 11.2.1. Requirse to use the following custom [board package](https://github.com/vChavezB/ArduinoBoards/blob/master/SAM3X/package_vchavezb_sam-enhanced.json).
+- Using by default C++20 and C17
 
 The rest of this readme has been kept unmodified and is as-is from the original repo.
 

From 574f1f2c1d1d6e68b20d3b8ac889da8d53d211d6 Mon Sep 17 00:00:00 2001
From: vChavezB <47216966+vChavezB@users.noreply.github.com>
Date: Thu, 14 Jul 2022 20:22:35 +0200
Subject: [PATCH 09/14] Create package.json

---
 package.json | 175 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 175 insertions(+)
 create mode 100644 package.json

diff --git a/package.json b/package.json
new file mode 100644
index 00000000..46dbd47f
--- /dev/null
+++ b/package.json
@@ -0,0 +1,175 @@
+{
+  "packages": [
+    {
+      "name": "SAM-Enhanced",
+      "maintainer": "VChavezB",
+      "websiteURL": "http://www.arduino.cc/",
+      "email": "chavez-bermudez@fh-aachen.de",
+      "help": {
+        "online": "http://www.arduino.cc/en/Reference/HomePage"
+      },
+      "platforms": [
+        {
+          "name": "Arduino SAM Boards (32-bits ARM Cortex-M3) Enhanced",
+          "architecture": "sam",
+          "version": "0.0.4",
+          "category": "Contributed",
+          "url": "https://github.com/vChavezB/ArduinoCore-sam/archive/refs/tags/v0.0.4.tar.gz",
+          "archiveFileName": "ArduinoCore-sam-0.0.4.tar.gz",
+          "checksum": "MD5:9f2e4e43e119cae57ec2ade7990d37f3",
+          "size": 38842368,
+          "boards": [
+            {"name": "Arduino Due Enhanced"}
+          ],
+          "toolsDependencies": [
+            {
+              "packager": "arduino",
+              "name": "arm-none-eabi-gcc",
+              "version": "4.8.3-2014q1"
+            },
+            {
+              "packager": "SAM-Enhanced",
+              "name": "arm-none-eabi-gcc",
+              "version": "10.3-2021.10"
+            },
+            {
+              "packager": "SAM-Enhanced",
+              "name": "arm-none-eabi-gcc",
+              "version": "11.2.1-xpack"
+            },
+            {
+              "packager": "arduino",
+              "name": "bossac",
+              "version": "1.7.0-arduino3"
+            }
+          ]
+        }
+      ],
+      "tools": [
+        {
+          "name": "arm-none-eabi-gcc",
+          "version": "4.8.3-2014q1",
+          "systems": [
+            {
+              "host": "arm-linux-gnueabihf",
+              "url": "http://downloads.arduino.cc/gcc-arm-none-eabi-4.8.3-2014q1-arm.tar.bz2",
+              "archiveFileName": "gcc-arm-none-eabi-4.8.3-2014q1-arm.tar.bz2",
+              "checksum": "SHA-256:ebe96b34c4f434667cab0187b881ed585e7c7eb990fe6b69be3c81ec7e11e845",
+              "size": "44423906"
+            },
+            {
+              "host": "i686-mingw32",
+              "archiveFileName": "gcc-arm-none-eabi-4.8.3-2014q1-windows.tar.gz",
+              "url": "http://downloads.arduino.cc/gcc-arm-none-eabi-4.8.3-2014q1-windows.tar.gz",
+              "checksum": "SHA-256:fd8c111c861144f932728e00abd3f7d1107e186eb9cd6083a54c7236ea78b7c2",
+              "size": "84537449"
+            },
+            {
+              "host": "x86_64-apple-darwin",
+              "url": "http://downloads.arduino.cc/gcc-arm-none-eabi-4.8.3-2014q1-mac.tar.gz",
+              "archiveFileName": "gcc-arm-none-eabi-4.8.3-2014q1-mac.tar.gz",
+              "checksum": "SHA-256:3598acf21600f17a8e4a4e8e193dc422b894dc09384759b270b2ece5facb59c2",
+              "size": "52518522"
+            },
+            {
+              "host": "x86_64-pc-linux-gnu",
+              "url": "http://downloads.arduino.cc/gcc-arm-none-eabi-4.8.3-2014q1-linux64.tar.gz",
+              "archiveFileName": "gcc-arm-none-eabi-4.8.3-2014q1-linux64.tar.gz",
+              "checksum": "SHA-256:d23f6626148396d6ec42a5b4d928955a703e0757829195fa71a939e5b86eecf6",
+              "size": "51395093"
+            },
+            {
+              "host": "i686-pc-linux-gnu",
+              "url": "http://downloads.arduino.cc/gcc-arm-none-eabi-4.8.3-2014q1-linux32.tar.gz",
+              "archiveFileName": "gcc-arm-none-eabi-4.8.3-2014q1-linux32.tar.gz",
+              "checksum": "SHA-256:ba1994235f69c526c564f65343f22ddbc9822b2ea8c5ee07dd79d89f6ace2498",
+              "size": "51029223"
+            }
+          ]
+        },
+       {
+          "name": "arm-none-eabi-gcc",
+          "version": "10.3-2021.10",
+          "systems": [
+            {
+              "host": "aarch64-linux-gnu",
+              "url": "https://developer.arm.com/-/media/Files/downloads/gnu-rm/10.3-2021.10/gcc-arm-none-eabi-10.3-2021.10-aarch64-linux.tar.bz2",
+              "archiveFileName": "gcc-arm-none-eabi-10.3-2021.10-aarch64-linux.tar.bz2",
+              "size": 168772350,
+              "checksum": "MD5:3fe3d8bb693bd0a6e4615b6569443d0d"
+            },
+            {
+              "host": "i686-mingw32",
+              "url": "https://developer.arm.com/-/media/Files/downloads/gnu-rm/10.3-2021.10/gcc-arm-none-eabi-10.3-2021.10-win32.zip",
+              "archiveFileName": "gcc-arm-none-eabi-10.3-2021.10-win32.zip",
+              "size": 200578763,
+              "checksum": "MD5:2bc8f0c4c4659f8259c8176223eeafc1"
+            },
+            {
+              "host": "x86_64-apple-darwin",
+              "url": "https://developer.arm.com/-/media/Files/downloads/gnu-rm/10.3-2021.10/gcc-arm-none-eabi-10.3-2021.10-mac.tar.bz2",
+              "archiveFileName": "gcc-arm-none-eabi-10.3-2021.10-mac.tar.bz2",
+              "size": 158961466,
+              "checksum": "MD5:7f2a7b7b23797302a9d6182c6e482449"
+            },
+            {
+              "host": "x86_64-pc-linux-gnu",
+              "url": "https://developer.arm.com/-/media/Files/downloads/gnu-rm/10.3-2021.10/gcc-arm-none-eabi-10.3-2021.10-x86_64-linux.tar.bz2",
+              "archiveFileName": "gcc-arm-none-eabi-10.3-2021.10-x86_64-linux.tar.bz2",
+              "size": 157089706,
+              "checksum": "MD5:2383e4eb4ea23f248d33adc70dc3227e"
+            }
+          ]
+        },
+       {
+          "name": "arm-none-eabi-gcc",
+          "version": "11.2.1-xpack",
+          "systems": [
+            {
+              "host": "aarch64-apple-darwin",
+              "url": "https://github.com/xpack-dev-tools/arm-none-eabi-gcc-xpack/releases/download/v11.2.1-1.2/xpack-arm-none-eabi-gcc-11.2.1-1.2-darwin-arm64.tar.gz",
+              "archiveFileName": "xpack-arm-none-eabi-gcc-11.2.1-1.2-darwin-arm64.tar.gz",
+              "size": 231851100,
+              "checksum": "MD5:0caba7c6ccbff8835dba0205bb2d4d11"
+            },
+            {
+              "host": "aarch64-linux-gnu",
+              "url": "https://github.com/xpack-dev-tools/arm-none-eabi-gcc-xpack/releases/download/v11.2.1-1.2/xpack-arm-none-eabi-gcc-11.2.1-1.2-linux-arm64.tar.gz",
+              "archiveFileName": "xpack-arm-none-eabi-gcc-11.2.1-1.2-linux-arm64.tar.gz",
+              "size": 233645479,
+              "checksum": "MD5:63493c0104c565de6dca59b3b90372f0"
+            },
+            {
+              "host": "arm-linux-gnueabihf",
+              "url": "https://github.com/xpack-dev-tools/arm-none-eabi-gcc-xpack/releases/download/v11.2.1-1.2/xpack-arm-none-eabi-gcc-11.2.1-1.2-linux-arm.tar.gz",
+              "archiveFileName": "xpack-arm-none-eabi-gcc-11.2.1-1.2-linux-arm.tar.gz",
+              "size": 227115677,
+              "checksum": "MD5:1d3f4055069b6326806051e15b9de059"
+            },
+            {
+              "host": "i686-mingw32",
+              "url": "https://github.com/xpack-dev-tools/arm-none-eabi-gcc-xpack/releases/download/v11.2.1-1.2/xpack-arm-none-eabi-gcc-11.2.1-1.2-win32-x64.zip",
+              "archiveFileName": "xpack-arm-none-eabi-gcc-11.2.1-1.2-win32-x64.zip",
+              "size": 247612940,
+              "checksum": "MD5:7fddeaa4a24b2fc1b0486567af9bc301"
+            },
+            {
+              "host": "x86_64-apple-darwin",
+              "url": "https://github.com/xpack-dev-tools/arm-none-eabi-gcc-xpack/releases/download/v11.2.1-1.2/xpack-arm-none-eabi-gcc-11.2.1-1.2-darwin-x64.tar.gz",
+              "archiveFileName": "xpack-arm-none-eabi-gcc-11.2.1-1.2-darwin-x64.tar.gz",
+              "size": 227115677,
+              "checksum": "MD5:95df8a69d322f34ec27dc3f4bb82e897"
+            },
+            {
+              "host": "x86_64-pc-linux-gnu",
+              "url": "https://github.com/xpack-dev-tools/arm-none-eabi-gcc-xpack/releases/download/v11.2.1-1.2/xpack-arm-none-eabi-gcc-11.2.1-1.2-linux-x64.tar.gz",
+              "archiveFileName": "xpack-arm-none-eabi-gcc-11.2.1-1.2-linux-x64.tar.gz",
+              "size": 235243515,
+              "checksum": "MD5:be8351d78458365432c5591c0fc9759d"
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}

From 634827ec23fc0309b0fc17107ab6bafa4c339c9b Mon Sep 17 00:00:00 2001
From: vChavezB <47216966+vChavezB@users.noreply.github.com>
Date: Thu, 14 Jul 2022 20:23:07 +0200
Subject: [PATCH 10/14] Update package.json

---
 package.json | 85 ----------------------------------------------------
 1 file changed, 85 deletions(-)

diff --git a/package.json b/package.json
index 46dbd47f..8e032258 100644
--- a/package.json
+++ b/package.json
@@ -22,16 +22,6 @@
             {"name": "Arduino Due Enhanced"}
           ],
           "toolsDependencies": [
-            {
-              "packager": "arduino",
-              "name": "arm-none-eabi-gcc",
-              "version": "4.8.3-2014q1"
-            },
-            {
-              "packager": "SAM-Enhanced",
-              "name": "arm-none-eabi-gcc",
-              "version": "10.3-2021.10"
-            },
             {
               "packager": "SAM-Enhanced",
               "name": "arm-none-eabi-gcc",
@@ -46,81 +36,6 @@
         }
       ],
       "tools": [
-        {
-          "name": "arm-none-eabi-gcc",
-          "version": "4.8.3-2014q1",
-          "systems": [
-            {
-              "host": "arm-linux-gnueabihf",
-              "url": "http://downloads.arduino.cc/gcc-arm-none-eabi-4.8.3-2014q1-arm.tar.bz2",
-              "archiveFileName": "gcc-arm-none-eabi-4.8.3-2014q1-arm.tar.bz2",
-              "checksum": "SHA-256:ebe96b34c4f434667cab0187b881ed585e7c7eb990fe6b69be3c81ec7e11e845",
-              "size": "44423906"
-            },
-            {
-              "host": "i686-mingw32",
-              "archiveFileName": "gcc-arm-none-eabi-4.8.3-2014q1-windows.tar.gz",
-              "url": "http://downloads.arduino.cc/gcc-arm-none-eabi-4.8.3-2014q1-windows.tar.gz",
-              "checksum": "SHA-256:fd8c111c861144f932728e00abd3f7d1107e186eb9cd6083a54c7236ea78b7c2",
-              "size": "84537449"
-            },
-            {
-              "host": "x86_64-apple-darwin",
-              "url": "http://downloads.arduino.cc/gcc-arm-none-eabi-4.8.3-2014q1-mac.tar.gz",
-              "archiveFileName": "gcc-arm-none-eabi-4.8.3-2014q1-mac.tar.gz",
-              "checksum": "SHA-256:3598acf21600f17a8e4a4e8e193dc422b894dc09384759b270b2ece5facb59c2",
-              "size": "52518522"
-            },
-            {
-              "host": "x86_64-pc-linux-gnu",
-              "url": "http://downloads.arduino.cc/gcc-arm-none-eabi-4.8.3-2014q1-linux64.tar.gz",
-              "archiveFileName": "gcc-arm-none-eabi-4.8.3-2014q1-linux64.tar.gz",
-              "checksum": "SHA-256:d23f6626148396d6ec42a5b4d928955a703e0757829195fa71a939e5b86eecf6",
-              "size": "51395093"
-            },
-            {
-              "host": "i686-pc-linux-gnu",
-              "url": "http://downloads.arduino.cc/gcc-arm-none-eabi-4.8.3-2014q1-linux32.tar.gz",
-              "archiveFileName": "gcc-arm-none-eabi-4.8.3-2014q1-linux32.tar.gz",
-              "checksum": "SHA-256:ba1994235f69c526c564f65343f22ddbc9822b2ea8c5ee07dd79d89f6ace2498",
-              "size": "51029223"
-            }
-          ]
-        },
-       {
-          "name": "arm-none-eabi-gcc",
-          "version": "10.3-2021.10",
-          "systems": [
-            {
-              "host": "aarch64-linux-gnu",
-              "url": "https://developer.arm.com/-/media/Files/downloads/gnu-rm/10.3-2021.10/gcc-arm-none-eabi-10.3-2021.10-aarch64-linux.tar.bz2",
-              "archiveFileName": "gcc-arm-none-eabi-10.3-2021.10-aarch64-linux.tar.bz2",
-              "size": 168772350,
-              "checksum": "MD5:3fe3d8bb693bd0a6e4615b6569443d0d"
-            },
-            {
-              "host": "i686-mingw32",
-              "url": "https://developer.arm.com/-/media/Files/downloads/gnu-rm/10.3-2021.10/gcc-arm-none-eabi-10.3-2021.10-win32.zip",
-              "archiveFileName": "gcc-arm-none-eabi-10.3-2021.10-win32.zip",
-              "size": 200578763,
-              "checksum": "MD5:2bc8f0c4c4659f8259c8176223eeafc1"
-            },
-            {
-              "host": "x86_64-apple-darwin",
-              "url": "https://developer.arm.com/-/media/Files/downloads/gnu-rm/10.3-2021.10/gcc-arm-none-eabi-10.3-2021.10-mac.tar.bz2",
-              "archiveFileName": "gcc-arm-none-eabi-10.3-2021.10-mac.tar.bz2",
-              "size": 158961466,
-              "checksum": "MD5:7f2a7b7b23797302a9d6182c6e482449"
-            },
-            {
-              "host": "x86_64-pc-linux-gnu",
-              "url": "https://developer.arm.com/-/media/Files/downloads/gnu-rm/10.3-2021.10/gcc-arm-none-eabi-10.3-2021.10-x86_64-linux.tar.bz2",
-              "archiveFileName": "gcc-arm-none-eabi-10.3-2021.10-x86_64-linux.tar.bz2",
-              "size": 157089706,
-              "checksum": "MD5:2383e4eb4ea23f248d33adc70dc3227e"
-            }
-          ]
-        },
        {
           "name": "arm-none-eabi-gcc",
           "version": "11.2.1-xpack",

From 26a224a37eece7f5f0019f823fac03a7641e2987 Mon Sep 17 00:00:00 2001
From: vChavezB <47216966+vChavezB@users.noreply.github.com>
Date: Thu, 14 Jul 2022 20:25:27 +0200
Subject: [PATCH 11/14] Update README.md

---
 README.md | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index fef55f2d..86c8853f 100644
--- a/README.md
+++ b/README.md
@@ -4,9 +4,16 @@ This repository is based from the [Arduio Sam SDK for cortex-m3](https://github.
 
 - Attachment of a callback function to the IRQ handler of USART/UART peripherals. This comes handy when you need to process data in real-time.
 - Addition of USART2 as Serial4.
-- Updated GCC to version 11.2.1. Requirse to use the following custom [board package](https://github.com/vChavezB/ArduinoBoards/blob/master/SAM3X/package_vchavezb_sam-enhanced.json).
+- Updated GCC to version 11.2.1.
 - Using by default C++20 and C17
 
+## Installation
+
+Add the following url to your Arduino package manager
+
+https://raw.githubusercontent.com/vChavezB/ArduinoCore-sam/master/package.json
+
+
 The rest of this readme has been kept unmodified and is as-is from the original repo.
 
 This repository contains the source code and configuration files of the Arduino Core for Atmel's SAM3X processor (used on the [Arduino Due](https://www.arduino.cc/en/Main/ArduinoBoardDue) board).

From 5e0eb9201e08ba26de59ef8c956efb454c01e038 Mon Sep 17 00:00:00 2001
From: vChavezB <47216966+vChavezB@users.noreply.github.com>
Date: Thu, 14 Jul 2022 20:26:21 +0200
Subject: [PATCH 12/14] Update README.md

---
 README.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 86c8853f..d7984b85 100644
--- a/README.md
+++ b/README.md
@@ -13,9 +13,11 @@ Add the following url to your Arduino package manager
 
 https://raw.githubusercontent.com/vChavezB/ArduinoCore-sam/master/package.json
 
-
+---
 The rest of this readme has been kept unmodified and is as-is from the original repo.
 
+---
+
 This repository contains the source code and configuration files of the Arduino Core for Atmel's SAM3X processor (used on the [Arduino Due](https://www.arduino.cc/en/Main/ArduinoBoardDue) board).
 
 ## Installation on Arduino IDE

From 3551f6c2e12fa3496464540609fe51db15ddfca2 Mon Sep 17 00:00:00 2001
From: vChavezB <47216966+vChavezB@users.noreply.github.com>
Date: Thu, 14 Jul 2022 20:29:50 +0200
Subject: [PATCH 13/14] Delete package.json

---
 package.json | 90 ----------------------------------------------------
 1 file changed, 90 deletions(-)
 delete mode 100644 package.json

diff --git a/package.json b/package.json
deleted file mode 100644
index 8e032258..00000000
--- a/package.json
+++ /dev/null
@@ -1,90 +0,0 @@
-{
-  "packages": [
-    {
-      "name": "SAM-Enhanced",
-      "maintainer": "VChavezB",
-      "websiteURL": "http://www.arduino.cc/",
-      "email": "chavez-bermudez@fh-aachen.de",
-      "help": {
-        "online": "http://www.arduino.cc/en/Reference/HomePage"
-      },
-      "platforms": [
-        {
-          "name": "Arduino SAM Boards (32-bits ARM Cortex-M3) Enhanced",
-          "architecture": "sam",
-          "version": "0.0.4",
-          "category": "Contributed",
-          "url": "https://github.com/vChavezB/ArduinoCore-sam/archive/refs/tags/v0.0.4.tar.gz",
-          "archiveFileName": "ArduinoCore-sam-0.0.4.tar.gz",
-          "checksum": "MD5:9f2e4e43e119cae57ec2ade7990d37f3",
-          "size": 38842368,
-          "boards": [
-            {"name": "Arduino Due Enhanced"}
-          ],
-          "toolsDependencies": [
-            {
-              "packager": "SAM-Enhanced",
-              "name": "arm-none-eabi-gcc",
-              "version": "11.2.1-xpack"
-            },
-            {
-              "packager": "arduino",
-              "name": "bossac",
-              "version": "1.7.0-arduino3"
-            }
-          ]
-        }
-      ],
-      "tools": [
-       {
-          "name": "arm-none-eabi-gcc",
-          "version": "11.2.1-xpack",
-          "systems": [
-            {
-              "host": "aarch64-apple-darwin",
-              "url": "https://github.com/xpack-dev-tools/arm-none-eabi-gcc-xpack/releases/download/v11.2.1-1.2/xpack-arm-none-eabi-gcc-11.2.1-1.2-darwin-arm64.tar.gz",
-              "archiveFileName": "xpack-arm-none-eabi-gcc-11.2.1-1.2-darwin-arm64.tar.gz",
-              "size": 231851100,
-              "checksum": "MD5:0caba7c6ccbff8835dba0205bb2d4d11"
-            },
-            {
-              "host": "aarch64-linux-gnu",
-              "url": "https://github.com/xpack-dev-tools/arm-none-eabi-gcc-xpack/releases/download/v11.2.1-1.2/xpack-arm-none-eabi-gcc-11.2.1-1.2-linux-arm64.tar.gz",
-              "archiveFileName": "xpack-arm-none-eabi-gcc-11.2.1-1.2-linux-arm64.tar.gz",
-              "size": 233645479,
-              "checksum": "MD5:63493c0104c565de6dca59b3b90372f0"
-            },
-            {
-              "host": "arm-linux-gnueabihf",
-              "url": "https://github.com/xpack-dev-tools/arm-none-eabi-gcc-xpack/releases/download/v11.2.1-1.2/xpack-arm-none-eabi-gcc-11.2.1-1.2-linux-arm.tar.gz",
-              "archiveFileName": "xpack-arm-none-eabi-gcc-11.2.1-1.2-linux-arm.tar.gz",
-              "size": 227115677,
-              "checksum": "MD5:1d3f4055069b6326806051e15b9de059"
-            },
-            {
-              "host": "i686-mingw32",
-              "url": "https://github.com/xpack-dev-tools/arm-none-eabi-gcc-xpack/releases/download/v11.2.1-1.2/xpack-arm-none-eabi-gcc-11.2.1-1.2-win32-x64.zip",
-              "archiveFileName": "xpack-arm-none-eabi-gcc-11.2.1-1.2-win32-x64.zip",
-              "size": 247612940,
-              "checksum": "MD5:7fddeaa4a24b2fc1b0486567af9bc301"
-            },
-            {
-              "host": "x86_64-apple-darwin",
-              "url": "https://github.com/xpack-dev-tools/arm-none-eabi-gcc-xpack/releases/download/v11.2.1-1.2/xpack-arm-none-eabi-gcc-11.2.1-1.2-darwin-x64.tar.gz",
-              "archiveFileName": "xpack-arm-none-eabi-gcc-11.2.1-1.2-darwin-x64.tar.gz",
-              "size": 227115677,
-              "checksum": "MD5:95df8a69d322f34ec27dc3f4bb82e897"
-            },
-            {
-              "host": "x86_64-pc-linux-gnu",
-              "url": "https://github.com/xpack-dev-tools/arm-none-eabi-gcc-xpack/releases/download/v11.2.1-1.2/xpack-arm-none-eabi-gcc-11.2.1-1.2-linux-x64.tar.gz",
-              "archiveFileName": "xpack-arm-none-eabi-gcc-11.2.1-1.2-linux-x64.tar.gz",
-              "size": 235243515,
-              "checksum": "MD5:be8351d78458365432c5591c0fc9759d"
-            }
-          ]
-        }
-      ]
-    }
-  ]
-}

From 78a6a7a95c4882448e6c7909f9f7bb758b751cc8 Mon Sep 17 00:00:00 2001
From: vChavezB <47216966+vChavezB@users.noreply.github.com>
Date: Thu, 14 Jul 2022 20:33:04 +0200
Subject: [PATCH 14/14] Update README.md

---
 README.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index d7984b85..6429a74d 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,9 @@ This repository is based from the [Arduio Sam SDK for cortex-m3](https://github.
 
 Add the following url to your Arduino package manager
 
-https://raw.githubusercontent.com/vChavezB/ArduinoCore-sam/master/package.json
+```
+https://raw.githubusercontent.com/vChavezB/ArduinoBoards/master/SAM3X/package_vchavezb_sam-enhanced.json
+```
 
 ---
 The rest of this readme has been kept unmodified and is as-is from the original repo.