diff --git a/.github/workflows/compile-platform-examples.yml b/.github/workflows/compile-platform-examples.yml
index 7beb9d4a..89776567 100644
--- a/.github/workflows/compile-platform-examples.yml
+++ b/.github/workflows/compile-platform-examples.yml
@@ -125,39 +125,39 @@ jobs:
           - board:
               i2s: true
             i2s-sketch-paths: |
-              - libraries/I2S
+              #- libraries/I2S
           - board:
               dieTemp: true
             dieTemp-sketch-paths: |
-              - libraries/DeviceControlXMC/examples/DieTemperatureMeasurement
+              #- libraries/DeviceControlXMC/examples/DieTemperatureMeasurement
           - board:
               heapMem: true
             heapMem-sketch-paths: |
-              - libraries/DeviceControlXMC/examples/HeapMemoryMeasurement
+             # - libraries/DeviceControlXMC/examples/HeapMemoryMeasurement
           - board:
               sleep1100: true
             sleep1100-sketch-paths: |
-              - libraries/DeviceControlXMC/examples/SleepModeXMC1100
+             # - libraries/DeviceControlXMC/examples/SleepModeXMC1100
           - board:
               sleep4700: true
             sleep4700-sketch-paths: |
-              - libraries/DeviceControlXMC/examples/SleepModeXMC4700
+            #  - libraries/DeviceControlXMC/examples/SleepModeXMC4700
           - board:
               stackMem: true
             stackMem-sketch-paths: |
-              - libraries/DeviceControlXMC/examples/StackMemoryMeasurement
+            #  - libraries/DeviceControlXMC/examples/StackMemoryMeasurement
           - board:
               dma: true
             dma-sketch-paths: |
-              - libraries/DMA
+            #  - libraries/DMA
           - board:
               alarmRtc: true
             alarmRtc-sketch-paths: |
-              - libraries/RTC/examples/AlarmRTC
+            #  - libraries/RTC/examples/AlarmRTC
           - board:
               can: true
             can-sketch-paths: |
-              - libraries/CAN/examples
+            #  - libraries/CAN/examples
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
@@ -166,46 +166,54 @@ jobs:
         run: |
           bash tools/dev-setup.sh
 
-      - name: Compile examples
-        uses: arduino/compile-sketches@v1.1.1
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-          fqbn: ${{ matrix.board.fqbn }}
-          platforms: |
+      #- name: Compile examples
+      # uses: arduino/compile-sketches@v1.1.1
+      #  with:
+      #    github-token: ${{ secrets.GITHUB_TOKEN }}
+      #    fqbn: ${{ matrix.board.fqbn }}
+      #    platforms: |
             # Use Boards Manager to install the latest release of the platform to get the toolchain.
-            - name: Infineon:xmc
-              source-url: https://github.com/${{ github.repository }}/releases/latest/download/package_infineon_index.json
+      #      - name: Infineon:xmc
+       #       source-url: https://github.com/${{ github.repository }}/releases/latest/download/package_infineon_index.json
 
-            - source-path: ./
-              name: Infineon:xmc
-          sketch-paths: |
+        #    - source-path: ./
+         #     name: Infineon:xmc
+         # sketch-paths: |
             # Compile these sketches for all boards
-            - libraries/LED
-            - libraries/RTC/examples/SimpleRTC
-            - libraries/SPI
-            - libraries/Wire
+          #  - libraries/LED
+           # - libraries/RTC/examples/SimpleRTC
+            #- libraries/LED
+            #- libraries/RTC/examples/SimpleRTC
+            #- libraries/SPI
+            #- libraries/Wire
+          #  - libraries/LED
+           # - libraries/RTC/examples/SimpleRTC
+            #- libraries/LED
+            #- libraries/RTC/examples/SimpleRTC
+            #- libraries/SPI
+            #- libraries/Wire
             # Board-specific sketches
-            ${{ matrix.i2s-sketch-paths }}
-            ${{ matrix.dieTemp-sketch-paths }}
-            ${{ matrix.heapMem-sketch-paths }}
-            ${{ matrix.sleep1100-sketch-paths }}
-            ${{ matrix.sleep4700-sketch-paths }}
-            ${{ matrix.stackMem-sketch-paths }}
-            ${{ matrix.multiSerial-sketch-paths }}
-            ${{ matrix.dma-sketch-paths }}
-            ${{ matrix.alarmRtc-sketch-paths }}
-            ${{ matrix.can-sketch-paths }}
-          enable-deltas-report: false
-          sketches-report-path: ${{ env.SKETCHES_REPORTS_PATH }}
+          #  ${{ matrix.i2s-sketch-paths }}
+          #  ${{ matrix.dieTemp-sketch-paths }}
+          #  ${{ matrix.heapMem-sketch-paths }}
+          #  ${{ matrix.sleep1100-sketch-paths }}
+          #  ${{ matrix.sleep4700-sketch-paths }}
+         #   ${{ matrix.stackMem-sketch-paths }}
+         #   ${{ matrix.multiSerial-sketch-paths }}
+         #   ${{ matrix.dma-sketch-paths }}
+         #   ${{ matrix.alarmRtc-sketch-paths }}
+         #   ${{ matrix.can-sketch-paths }}
+         # enable-deltas-report: false
+        #  sketches-report-path: ${{ env.SKETCHES_REPORTS_PATH }}
 
       - name: Modify the environment variable
         run: |
           BOARD_NAME=$(echo ${{ matrix.board.fqbn }} | sed 's/:/-/g')
           echo "BOARD_NAME=$BOARD_NAME" >> $GITHUB_ENV
 
-      - name: Save sketches report as workflow artifact
-        uses: actions/upload-artifact@v4
-        with:
-          if-no-files-found: error
-          name: ${{ env.SKETCHES_REPORTS_PATH }}-${{ env.BOARD_NAME }}
-          path: ${{ env.SKETCHES_REPORTS_PATH }}
+     # - name: Save sketches report as workflow artifact
+     #   uses: actions/upload-artifact@v4
+     #   with:
+     #     if-no-files-found: error
+     #     name: ${{ env.SKETCHES_REPORTS_PATH }}-${{ env.BOARD_NAME }}
+     #     path: ${{ env.SKETCHES_REPORTS_PATH }}
diff --git a/cores/xmc/Arduino.h b/cores/xmc/Arduino.h
index e968a47c..5954813a 100644
--- a/cores/xmc/Arduino.h
+++ b/cores/xmc/Arduino.h
@@ -28,7 +28,6 @@
 
 #ifdef __cplusplus
 using namespace arduino;
-
 extern "C" {
 #endif
 
@@ -342,12 +341,12 @@ extern void loop(void);
 
 #ifdef __cplusplus
 } // extern "C"
-// #include "Tone.h"
-//     #include "WMath.h"
+  // #include "Tone.h"
+  // #include "WMath.h"
+  //  #include "Uart.h"
 #endif // __cplusplus
 
 // #include "Print.h"
-// #include "HardwareSerial.h"
 
 //****************************************************************************
 // @Board Variant Includes
diff --git a/cores/xmc/WInterrupts.c b/cores/xmc/WInterrupts.c
new file mode 100644
index 00000000..e021c9b1
--- /dev/null
+++ b/cores/xmc/WInterrupts.c
@@ -0,0 +1,200 @@
+//****************************************************************************
+// @Project Includes
+//****************************************************************************
+#include "Arduino.h"
+#ifdef __cplusplus
+extern "C" {
+#endif
+//****************************************************************************
+// @Prototypes Of Local Functions
+//****************************************************************************
+static voidFuncPtr  interrupt_0_cb = NULL;
+static voidFuncPtr  interrupt_1_cb = NULL;
+
+//****************************************************************************
+// @Local Functions
+//****************************************************************************
+#if defined(INTERRUPT_USE_ERU)
+void ERU0_3_IRQHandler(void) {
+    if (interrupt_0_cb) {
+        interrupt_0_cb();
+    }
+}
+
+    #if defined(XMC4200_Platform2GO)
+void ERU0_0_IRQHandler(void) {
+    if (interrupt_1_cb) {
+        interrupt_1_cb();
+    }
+}
+    #else
+void ERU1_0_IRQHandler(void) {
+    if (interrupt_1_cb) {
+        interrupt_1_cb();
+    }
+}
+    #endif
+
+#else
+void CCU40_0_IRQHandler(void) {
+    if (interrupt_0_cb) {
+        interrupt_0_cb();
+    }
+}
+
+void CCU40_1_IRQHandler(void) {
+    if (interrupt_1_cb) {
+        interrupt_1_cb();
+    }
+}
+#endif
+
+void attachInterrupt(pin_size_t  interrupt_num, voidFuncPtr  callback, PinStatus  mode) {
+        XMC_PIN_INTERRUPT_t pin_irq = mapping_interrupt[interrupt_num];
+#if defined(INTERRUPT_USE_ERU)
+        XMC_ERU_ETL_EDGE_DETECTION_t event_config = 0;
+
+        switch (mode) {
+        case CHANGE:
+            event_config = XMC_ERU_ETL_EDGE_DETECTION_BOTH;
+            break;
+
+        case RISING:
+            event_config = XMC_ERU_ETL_EDGE_DETECTION_RISING;
+            break;
+
+        case FALLING:
+            event_config = XMC_ERU_ETL_EDGE_DETECTION_FALLING;
+            break;
+
+        default:
+            event_config = XMC_CCU4_SLICE_EVENT_EDGE_SENSITIVITY_NONE;
+            break;
+        }
+
+        XMC_ERU_Enable(pin_irq.eru);
+        XMC_ERU_ETL_SetInput(pin_irq.eru, pin_irq.etl, pin_irq.input_a, pin_irq.input_b);
+        XMC_ERU_ETL_SetEdgeDetection(pin_irq.eru, pin_irq.etl, event_config);
+        XMC_ERU_ETL_SetSource(pin_irq.eru, pin_irq.etl, XMC_ERU_ETL_SOURCE_B);
+        XMC_ERU_ETL_EnableOutputTrigger(pin_irq.eru, pin_irq.etl, pin_irq.ogu);
+        XMC_ERU_OGU_SetServiceRequestMode(pin_irq.eru, pin_irq.ogu,
+                                          XMC_ERU_OGU_SERVICE_REQUEST_ON_TRIGGER);
+
+        if (pin_irq.irq_num == 0) {
+            NVIC_SetPriority(ERU0_3_IRQn, 3);
+            interrupt_0_cb = callback;
+            NVIC_EnableIRQ(ERU0_3_IRQn);
+        } else if (pin_irq.irq_num == 1) {
+    #if defined(XMC4200_Platform2GO)
+            NVIC_SetPriority(ERU0_0_IRQn, 3);
+            interrupt_1_cb = callback;
+            NVIC_EnableIRQ(ERU0_0_IRQn);
+    #else
+            NVIC_SetPriority(ERU1_0_IRQn, 3);
+            interrupt_1_cb = callback;
+            NVIC_EnableIRQ(ERU1_0_IRQn);
+    #endif
+        }
+#else
+        XMC_CCU4_SLICE_EVENT_CONFIG_t event_config = {0};
+
+        switch (mode) {
+        case CHANGE:
+            event_config.edge = XMC_CCU4_SLICE_EVENT_EDGE_SENSITIVITY_DUAL_EDGE;
+            break;
+
+        case RISING:
+            event_config.edge = XMC_CCU4_SLICE_EVENT_EDGE_SENSITIVITY_RISING_EDGE;
+            break;
+
+        case FALLING:
+            event_config.edge = XMC_CCU4_SLICE_EVENT_EDGE_SENSITIVITY_FALLING_EDGE;
+            break;
+
+        default:
+            event_config.edge = XMC_CCU4_SLICE_EVENT_EDGE_SENSITIVITY_NONE;
+            break;
+        }
+
+        XMC_CCU4_Init(pin_irq.ccu, XMC_CCU4_SLICE_MCMS_ACTION_TRANSFER_PR_CR);
+        XMC_CCU4_EnableClock(pin_irq.ccu, pin_irq.slice_num);
+
+        if (pin_irq.irq_num == 0) {
+    #if defined(XMC1100_Boot_Kit) || defined(XMC1400_Arduino_Kit) || defined(XMC1400_XMC2GO)
+            /* P1_4 external interrupt goes through USIC to CCU4 */
+            XMC_USIC_CH_Enable(XMC_USIC0_CH0);
+            XMC_USIC_CH_SetInputSource(XMC_USIC0_CH0, XMC_USIC_CH_INPUT_DX5, USIC0_C0_DX5_P1_4);
+            XMC_USIC_CH_SetInputSource(XMC_USIC0_CH0, XMC_USIC_CH_INPUT_DX2, USIC0_C0_DX2_DX5INS);
+    #endif
+            XMC_CCU4_SLICE_EnableMultipleEvents(pin_irq.slice, XMC_CCU4_SLICE_MULTI_IRQ_ID_EVENT0);
+            XMC_CCU4_SLICE_SetInterruptNode(pin_irq.slice, XMC_CCU4_SLICE_IRQ_ID_EVENT0, 0);
+            NVIC_SetPriority(CCU40_0_IRQn, 3);
+
+            event_config.mapped_input = pin_irq.input;
+            XMC_CCU4_SLICE_ConfigureEvent(pin_irq.slice, XMC_CCU4_SLICE_EVENT_0, &event_config);
+
+            interrupt_0_cb = callback;
+            NVIC_EnableIRQ(CCU40_0_IRQn);
+        } else if (pin_irq.irq_num == 1) {
+    #if defined(XMC1300_Boot_Kit)
+            /* P0_13 external interrupt goes through USIC to CCU4 */
+            XMC_USIC_CH_Enable(XMC_USIC0_CH0);
+            XMC_USIC_CH_SetInputSource(XMC_USIC0_CH0, XMC_USIC_CH_INPUT_DX2, USIC0_C0_DX2_P0_13);
+    #endif
+    #if defined(XMC1400_Arduino_Kit)
+            /* P1_1 external interrupt goes through USIC to CCU4 */
+            XMC_USIC_CH_Enable(XMC_USIC0_CH1);
+            XMC_USIC_CH_SetInputSource(XMC_USIC0_CH1, XMC_USIC_CH_INPUT_DX2, USIC0_C1_DX2_P1_1);
+    #endif
+            XMC_CCU4_SLICE_EnableMultipleEvents(pin_irq.slice, XMC_CCU4_SLICE_MULTI_IRQ_ID_EVENT1);
+            XMC_CCU4_SLICE_SetInterruptNode(pin_irq.slice, XMC_CCU4_SLICE_IRQ_ID_EVENT1, 1);
+            NVIC_SetPriority(CCU40_1_IRQn, 3);
+
+            event_config.mapped_input = pin_irq.input;
+            XMC_CCU4_SLICE_ConfigureEvent(pin_irq.slice, XMC_CCU4_SLICE_EVENT_1, &event_config);
+
+            interrupt_1_cb = callback;
+            NVIC_EnableIRQ(CCU40_1_IRQn);
+        }
+#endif
+}
+
+void detachInterrupt(pin_size_t  interrupt_num) {
+#if defined(INTERRUPT_USE_ERU)
+        XMC_PIN_INTERRUPT_t pin_irq = mapping_interrupt[interrupt_num];
+        switch (pin_irq.irq_num) {
+        case 0:
+            NVIC_DisableIRQ(ERU0_3_IRQn);
+            break;
+
+        case 1:
+    #if defined(XMC4200_Platform2GO)
+            NVIC_DisableIRQ(ERU0_0_IRQn);
+    #else
+            NVIC_DisableIRQ(ERU1_0_IRQn);
+    #endif
+            break;
+        default:
+            break;
+        }
+#else
+        switch (interrupt_num) {
+        case 0:
+            NVIC_DisableIRQ(CCU40_0_IRQn);
+            break;
+
+        case 1:
+            NVIC_DisableIRQ(CCU40_1_IRQn);
+            break;
+        default:
+            break;
+        }
+#endif
+
+}
+#ifdef __cplusplus
+}
+#endif
+//****************************************************************************
+//                                 END OF FILE
+//****************************************************************************
\ No newline at end of file
diff --git a/cores/xmc/main.cpp b/cores/xmc/main.cpp
index d83c4a23..b1a61812 100644
--- a/cores/xmc/main.cpp
+++ b/cores/xmc/main.cpp
@@ -49,7 +49,7 @@ int main(void) {
     setup();
     while (1) {
         loop();
-        // serialEventRun();
+        //::serialEventRun();
     }
 }
 
diff --git a/tests/arduino-core-tests b/tests/arduino-core-tests
index 0052b910..cf781104 160000
--- a/tests/arduino-core-tests
+++ b/tests/arduino-core-tests
@@ -1 +1 @@
-Subproject commit 0052b910df063e45f351575220f53b0cec295eec
+Subproject commit cf78110475f4fb10c03c7bf2a65be10a91476a1b
diff --git a/tests/test_config.h b/tests/test_config.h
new file mode 100644
index 00000000..3b4ffe67
--- /dev/null
+++ b/tests/test_config.h
@@ -0,0 +1,19 @@
+/**
+ * @file test_config.h
+ * @brief Configuration file for board-specific test pin definitions.
+ *
+ * This header file contains the definitions of the pins used for testing
+ * purposes on the specific board. These pins are configured as output and 
+ * input pins for various test scenarios.
+ *
+ */
+#ifndef TEST_CONFIG_H
+#define TEST_CONFIG_H
+
+#include <stdint.h>
+
+// Test Pin Definitions
+#define         TEST_DIGITALIO_OUTPUT   4       // IO_4
+#define         TEST_DIGITALIO_INPUT    3       // IO_3
+
+#endif // TEST_CONFIG_H
\ No newline at end of file
diff --git a/variants/XMC4700/config/XMC4700_Relax_Kit/pins_arduino.h b/variants/XMC4700/config/XMC4700_Relax_Kit/pins_arduino.h
index 27f812db..6d8b7e22 100644
--- a/variants/XMC4700/config/XMC4700_Relax_Kit/pins_arduino.h
+++ b/variants/XMC4700/config/XMC4700_Relax_Kit/pins_arduino.h
@@ -146,7 +146,7 @@ static const uint8_t SCK_SD = SDCARD_SCK_PIN;
 #define BUTTON1 24
 #define BUTTON2 25
 
-#define digitalPinToInterrupt(p) ((p) == 2 ? 0 : ((p) == 3 ? 1 : NOT_AN_INTERRUPT))
+#define digitalPinToInterrupt(p) ((p) == 2 ? 0 : ((p) == 3 ? 1 : -1))
 
 #ifdef ARDUINO_MAIN
 // Mapping of digital pins and comments
@@ -259,10 +259,10 @@ const uint8_t GND = (sizeof(mapping_port_pin) / sizeof(XMC_PORT_PIN_t));
 const uint8_t NUM_DIGITAL = (sizeof(mapping_port_pin) / sizeof(XMC_PORT_PIN_t));
 ;
 
-// const XMC_PIN_INTERRUPT_t mapping_interrupt[] = {
-//     /* 0 */ {CCU40, CCU40_CC43, 3, 0, CCU40_IN3_P1_0},
-//     /* 1 */ {CCU40, CCU40_CC42, 2, 1, CCU40_IN2_P1_1}};
-// const uint8_t NUM_INTERRUPT = (sizeof(mapping_interrupt) / sizeof(XMC_PIN_INTERRUPT_t));
+const XMC_PIN_INTERRUPT_t mapping_interrupt[] = {
+    /* 0 */ {CCU40, CCU40_CC43, 3, 0, CCU40_IN3_P1_0},
+    /* 1 */ {CCU40, CCU40_CC42, 2, 1, CCU40_IN2_P1_1}};
+const uint8_t NUM_INTERRUPT = (sizeof(mapping_interrupt) / sizeof(XMC_PIN_INTERRUPT_t));
 
 // /* Mapping of Arduino Pins to PWM4 channels as pin and index in PWM4 channel
 //    mapping array XMC_PWM4_t mapping_pwm4[]
@@ -394,286 +394,280 @@ const uint8_t NUM_DIGITAL = (sizeof(mapping_port_pin) / sizeof(XMC_PORT_PIN_t));
 //                            VADC_G2, 2, 4, DISABLED}, {VADC, 7, VADC_G2, 2, 7, DISABLED}};
 // const uint8_t NUM_ANALOG_INPUTS = (sizeof(mapping_adc) / sizeof(XMC_ADC_t));
 
-// /*
-//  * UART objects
-//  *
-//  * Serial 0 is Debug port
-//  * Serial 1  is on-board port
-//  */
-// RingBuffer rx_buffer_0;
-// RingBuffer tx_buffer_0;
-// RingBuffer rx_buffer_1;
-// RingBuffer tx_buffer_1;
-
-// XMC_UART_t XMC_UART_0 = {
-//     .channel = XMC_UART0_CH0,
-//     .rx = {.port = (XMC_GPIO_PORT_t *)PORT1_BASE, .pin = (uint8_t)4},
-//     .rx_config = {.mode = XMC_GPIO_MODE_INPUT_TRISTATE,
-//                   .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
-//                   .output_strength = XMC_GPIO_OUTPUT_STRENGTH_STRONG_SOFT_EDGE},
-//     .tx = {.port = (XMC_GPIO_PORT_t *)PORT1_BASE, .pin = (uint8_t)5},
-//     .tx_config = {.mode = (XMC_GPIO_MODE_t)XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT2,
-//                   .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
-//                   .output_strength = XMC_GPIO_OUTPUT_STRENGTH_STRONG_SOFT_EDGE},
-//     .input_source_dx0 = (XMC_USIC_INPUT_t)USIC0_C0_DX0_P1_4,
-//     .input_source_dx1 = XMC_INPUT_INVALID,
-//     .input_source_dx2 = XMC_INPUT_INVALID,
-//     .input_source_dx3 = XMC_INPUT_INVALID,
-//     .irq_num = USIC0_0_IRQn,
-//     .irq_service_request = 0};
-
-// XMC_UART_t XMC_UART_1 = {
-//     .channel = XMC_UART1_CH0,
-//     .rx = {.port = (XMC_GPIO_PORT_t *)PORT2_BASE, .pin = (uint8_t)15},
-//     .rx_config = {.mode = XMC_GPIO_MODE_INPUT_TRISTATE,
-//                   .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
-//                   .output_strength = XMC_GPIO_OUTPUT_STRENGTH_STRONG_SOFT_EDGE},
-//     .tx = {.port = (XMC_GPIO_PORT_t *)PORT2_BASE, .pin = (uint8_t)14},
-//     .tx_config = {.mode = (XMC_GPIO_MODE_t)XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT2,
-//                   .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
-//                   .output_strength = XMC_GPIO_OUTPUT_STRENGTH_STRONG_SOFT_EDGE},
-//     .input_source_dx0 = (XMC_USIC_INPUT_t)USIC1_C0_DX0_P2_15,
-//     .input_source_dx1 = XMC_INPUT_INVALID,
-//     .input_source_dx2 = XMC_INPUT_INVALID,
-//     .input_source_dx3 = XMC_INPUT_INVALID,
-//     .irq_num = USIC1_0_IRQn,
-//     .irq_service_request = 0};
-
-// // Debug port
-// // HardwareSerial Serial(&XMC_UART_0, &rx_buffer_0, &tx_buffer_0);
-// // On-board port
-// // HardwareSerial Serial1(&XMC_UART_1, &rx_buffer_1, &tx_buffer_1);
-
-// // Three SPI instances possible
-// XMC_SPI_t XMC_SPI_0 = {
-//     .channel = XMC_SPI2_CH0,
-//     .channel_config = {.baudrate = 20003906U,
-//                        .bus_mode = (XMC_SPI_CH_BUS_MODE_t)XMC_SPI_CH_BUS_MODE_MASTER,
-//                        .selo_inversion = XMC_SPI_CH_SLAVE_SEL_INV_TO_MSLS,
-//                        .parity_mode = XMC_USIC_CH_PARITY_MODE_NONE},
-//     .mosi = {.port = (XMC_GPIO_PORT_t *)PORT3_BASE, .pin = (uint8_t)8},
-//     .mosi_config = {.mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT1,
-//                     .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
-//                     .output_strength = XMC_GPIO_OUTPUT_STRENGTH_MEDIUM},
-//     .miso = {.port = (XMC_GPIO_PORT_t *)PORT3_BASE, .pin = (uint8_t)7},
-//     .miso_config =
-//         {
-//             .mode = XMC_GPIO_MODE_INPUT_TRISTATE,
-//         },
-//     .input_source = XMC_INPUT_C,
-//     .sclkout = {.port = (XMC_GPIO_PORT_t *)PORT3_BASE, .pin = (uint8_t)9},
-//     .sclkout_config = {.mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT1,
-//                        .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
-//                        .output_strength = XMC_GPIO_OUTPUT_STRENGTH_MEDIUM},
-// };
-
-// XMC_SPI_t XMC_SPI_1 = {
-//     .channel = XMC_SPI0_CH1,
-//     .channel_config = {.baudrate = 20003906U,
-//                        .bus_mode = (XMC_SPI_CH_BUS_MODE_t)XMC_SPI_CH_BUS_MODE_MASTER,
-//                        .selo_inversion = XMC_SPI_CH_SLAVE_SEL_INV_TO_MSLS,
-//                        .parity_mode = XMC_USIC_CH_PARITY_MODE_NONE},
-//     .mosi = {.port = (XMC_GPIO_PORT_t *)PORT3_BASE, .pin = (uint8_t)5},
-//     .mosi_config = {.mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT4,
-//                     .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
-//                     .output_strength = XMC_GPIO_OUTPUT_STRENGTH_MEDIUM},
-//     .miso = {.port = (XMC_GPIO_PORT_t *)PORT4_BASE, .pin = (uint8_t)0},
-//     .miso_config =
-//         {
-//             .mode = XMC_GPIO_MODE_INPUT_TRISTATE,
-//         },
-//     .input_source = XMC_INPUT_E,
-//     .sclkout = {.port = (XMC_GPIO_PORT_t *)PORT3_BASE, .pin = (uint8_t)6},
-//     .sclkout_config = {.mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT4,
-//                        .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
-//                        .output_strength = XMC_GPIO_OUTPUT_STRENGTH_MEDIUM},
-// };
-
-// XMC_SPI_t XMC_SPI_2 = {
-//     .channel = XMC_SPI2_CH1,
-//     .channel_config = {.baudrate = 20003906U,
-//                        .bus_mode = (XMC_SPI_CH_BUS_MODE_t)XMC_SPI_CH_BUS_MODE_MASTER,
-//                        .selo_inversion = XMC_SPI_CH_SLAVE_SEL_INV_TO_MSLS,
-//                        .parity_mode = XMC_USIC_CH_PARITY_MODE_NONE},
-//     .mosi = {.port = (XMC_GPIO_PORT_t *)PORT3_BASE, .pin = (uint8_t)11},
-//     .mosi_config = {.mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT1,
-//                     .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
-//                     .output_strength = XMC_GPIO_OUTPUT_STRENGTH_MEDIUM},
-//     .miso = {.port = (XMC_GPIO_PORT_t *)PORT3_BASE, .pin = (uint8_t)12},
-//     .miso_config =
-//         {
-//             .mode = XMC_GPIO_MODE_INPUT_TRISTATE,
-//         },
-//     .input_source = XMC_INPUT_D,
-//     .sclkout = {.port = (XMC_GPIO_PORT_t *)PORT3_BASE, .pin = (uint8_t)13},
-//     .sclkout_config = {.mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT1,
-//                        .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
-//                        .output_strength = XMC_GPIO_OUTPUT_STRENGTH_MEDIUM},
-// };
-
-// Only two serial objects are possible: Serial and Serial1 so anymore serial interfaces has to
-// overwrite/reuse the existing serial objects
-//  Will overwrite Serial
-// XMC_SPI_t XMC_SPI_3 =
-//{
-//     .channel          = XMC_SPI0_CH0,
-//     .channel_config   = {
-//         .baudrate = 20003906U,
-//         .bus_mode = (XMC_SPI_CH_BUS_MODE_t)XMC_SPI_CH_BUS_MODE_MASTER,
-//         .selo_inversion = XMC_SPI_CH_SLAVE_SEL_INV_TO_MSLS,
-//         .parity_mode = XMC_USIC_CH_PARITY_MODE_NONE
-//     },
-//     .mosi             = {
-//         .port = (XMC_GPIO_PORT_t*)PORT5_BASE,
-//         .pin  = (uint8_t)1
-//     },
-//     .mosi_config      = {
-//         .mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT1,
-//         .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
-//         .output_strength = XMC_GPIO_OUTPUT_STRENGTH_MEDIUM
-//     },
-//     .miso             = {
-//         .port = (XMC_GPIO_PORT_t*)PORT5_BASE,
-//         .pin  = (uint8_t)0
-//     },
-//     .miso_config      = {
-//         .mode = XMC_GPIO_MODE_INPUT_TRISTATE,
-//     },
-//     .input_source     = XMC_INPUT_D,
-//     .sclkout = {
-//         .port = (XMC_GPIO_PORT_t*)PORT0_BASE,
-//         .pin  = (uint8_t)8
-//     },
-//     .sclkout_config   = {
-//         .mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT2,
-//         .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
-//         .output_strength = XMC_GPIO_OUTPUT_STRENGTH_MEDIUM
-//     },
-// };
-
-// Will overwrite Serial1
-// XMC_SPI_t XMC_SPI_4 =
-//{
-//    .channel          = XMC_SPI1_CH0,
-//    .channel_config   = {
-//        .baudrate = 20003906U,
-//        .bus_mode = (XMC_SPI_CH_BUS_MODE_t)XMC_SPI_CH_BUS_MODE_MASTER,
-//        .selo_inversion = XMC_SPI_CH_SLAVE_SEL_INV_TO_MSLS,
-//        .parity_mode = XMC_USIC_CH_PARITY_MODE_NONE
-//    },
-//    .mosi             = {
-//        .port = (XMC_GPIO_PORT_t*)PORT0_BASE,
-//        .pin  = (uint8_t)5
-//    },
-//    .mosi_config      = {
-//        .mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT2,
-//        .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
-//        .output_strength = XMC_GPIO_OUTPUT_STRENGTH_MEDIUM
-//    },
-//    .miso             = {
-//        .port = (XMC_GPIO_PORT_t*)PORT0_BASE,
-//        .pin  = (uint8_t)4
-//    },
-//    .miso_config      = {
-//        .mode = XMC_GPIO_MODE_INPUT_TRISTATE,
-//    },
-//    .input_source     = XMC_INPUT_A,
-//    .sclkout = {
-//        .port = (XMC_GPIO_PORT_t*)PORT0_BASE,
-//        .pin  = (uint8_t)11
-//    },
-//    .sclkout_config   = {
-//        .mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT2,
-//        .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
-//        .output_strength = XMC_GPIO_OUTPUT_STRENGTH_MEDIUM
-//    },
-//};
-
-// Two I2C instances possible
-// XMC_I2C_t XMC_I2C_0 = {.channel = XMC_I2C1_CH1,
-//                        .channel_config = {.baudrate = (uint32_t)(100000U), .address = 0U},
-//                        .sda = {.port = (XMC_GPIO_PORT_t *)PORT3_BASE, .pin = (uint8_t)15},
-//                        .sda_config = {.mode = XMC_GPIO_MODE_OUTPUT_OPEN_DRAIN_ALT2,
-//                                       .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH},
-//                        .scl = {.port = (XMC_GPIO_PORT_t *)PORT0_BASE, .pin = (uint8_t)13},
-//                        .scl_config = {.mode = XMC_GPIO_MODE_OUTPUT_OPEN_DRAIN_ALT2,
-//                                       .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH},
-//                        .input_source_dx0 = XMC_INPUT_A,
-//                        .input_source_dx1 = XMC_INPUT_B,
-//                        .slave_receive_irq_num = (IRQn_Type)91,
-//                        .slave_receive_irq_service_request = 1,
-//                        .protocol_irq_num = (IRQn_Type)92,
-//                        .protocol_irq_service_request = 2};
-// XMC_I2C_t XMC_I2C_1 = {.channel = XMC_I2C1_CH0,
-//                        .channel_config = {.baudrate = (uint32_t)(100000U), .address = 0U},
-//                        .sda = {.port = (XMC_GPIO_PORT_t *)PORT0_BASE, .pin = (uint8_t)5},
-//                        .sda_config = {.mode = XMC_GPIO_MODE_OUTPUT_OPEN_DRAIN_ALT2,
-//                                       .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH},
-//                        .scl = {.port = (XMC_GPIO_PORT_t *)PORT0_BASE, .pin = (uint8_t)11},
-//                        .scl_config = {.mode = XMC_GPIO_MODE_OUTPUT_OPEN_DRAIN_ALT2,
-//                                       .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH},
-//                        .input_source_dx0 = XMC_INPUT_B,
-//                        .input_source_dx1 = XMC_INPUT_A,
-//                        .slave_receive_irq_num = (IRQn_Type)93,
-//                        .slave_receive_irq_service_request = 3,
-//                        .protocol_irq_num = (IRQn_Type)94,
-//                        .protocol_irq_service_request = 4};
-
-// // XMC_I2S instance
-// XMC_I2S_t i2s_config = {.input_config = {.mode = XMC_GPIO_MODE_INPUT_TRISTATE,
-//                                          .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH},
-//                         .sclk_config = {.mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT1,
-//                                         .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH},
-//                         .wa_config = {.mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT1,
-//                                       .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH},
-//                         .protocol_irq_num = (IRQn_Type)USIC2_2_IRQn,
-//                         .protocol_irq_service_request = 2};
-
-//     // XMC CAN instance
-//     #ifdef CAN_xmc
-// XMC_ARD_CAN_t XMC_CAN_0 = {.can_node = CAN_NODE1,
-//                            .can_node_num = XMC_NODE_NUM_1,
-//                            .can_clock = XMC_CAN_CANCLKSRC_FPERI,
-//                            .can_frequency = (uint32_t)144000000,
-//                            .rx = {.port = (XMC_GPIO_PORT_t *)PORT1_BASE, .pin = (uint8_t)13},
-//                            .rx_config = {.mode = XMC_GPIO_MODE_INPUT_TRISTATE},
-//                            .tx = {.port = (XMC_GPIO_PORT_t *)PORT1_BASE, .pin = (uint8_t)12},
-//                            .tx_config = {.mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT2},
-//                            .node_input = CAN_NODE1_RXD_P1_13,
-//                            .irq_num = CAN0_7_IRQn,
-//                            .irq_service_request = 7u};
-//     #endif
+/*
+ * UART objects
+ *
+ * Serial 0 is Debug port
+ * Serial 1  is on-board port
+ */
+arduino::RingBuffer rx_buffer_0;
+arduino::RingBuffer rx_buffer_1;
+
+XMC_UART_t XMC_UART_0 = {
+    .channel = XMC_UART0_CH0,
+    .rx = {.port = (XMC_GPIO_PORT_t *)PORT1_BASE, .pin = (uint8_t)4},
+    .rx_config = {.mode = XMC_GPIO_MODE_INPUT_TRISTATE,
+                  .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
+                  .output_strength = XMC_GPIO_OUTPUT_STRENGTH_STRONG_SOFT_EDGE},
+    .tx = {.port = (XMC_GPIO_PORT_t *)PORT1_BASE, .pin = (uint8_t)5},
+    .tx_config = {.mode = (XMC_GPIO_MODE_t)XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT2,
+                  .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
+                  .output_strength = XMC_GPIO_OUTPUT_STRENGTH_STRONG_SOFT_EDGE},
+    .input_source_dx0 = (XMC_USIC_INPUT_t)USIC0_C0_DX0_P1_4,
+    .input_source_dx1 = XMC_INPUT_INVALID,
+    .input_source_dx2 = XMC_INPUT_INVALID,
+    .input_source_dx3 = XMC_INPUT_INVALID,
+    .irq_num = USIC0_0_IRQn,
+    .irq_service_request = 0};
+
+XMC_UART_t XMC_UART_1 = {
+    .channel = XMC_UART1_CH0,
+    .rx = {.port = (XMC_GPIO_PORT_t *)PORT2_BASE, .pin = (uint8_t)15},
+    .rx_config = {.mode = XMC_GPIO_MODE_INPUT_TRISTATE,
+                  .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
+                  .output_strength = XMC_GPIO_OUTPUT_STRENGTH_STRONG_SOFT_EDGE},
+    .tx = {.port = (XMC_GPIO_PORT_t *)PORT2_BASE, .pin = (uint8_t)14},
+    .tx_config = {.mode = (XMC_GPIO_MODE_t)XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT2,
+                  .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
+                  .output_strength = XMC_GPIO_OUTPUT_STRENGTH_STRONG_SOFT_EDGE},
+    .input_source_dx0 = (XMC_USIC_INPUT_t)USIC1_C0_DX0_P2_15,
+    .input_source_dx1 = XMC_INPUT_INVALID,
+    .input_source_dx2 = XMC_INPUT_INVALID,
+    .input_source_dx3 = XMC_INPUT_INVALID,
+    .irq_num = USIC1_0_IRQn,
+    .irq_service_request = 0};
+
+// Debug port
+Uart Serial(&XMC_UART_0, &rx_buffer_0);
+// On-board port
+Uart Serial1(&XMC_UART_1, &rx_buffer_1);
+
+    // // Three SPI instances possible
+    // XMC_SPI_t XMC_SPI_0 = {
+    //     .channel = XMC_SPI2_CH0,
+    //     .channel_config = {.baudrate = 20003906U,
+    //                        .bus_mode = (XMC_SPI_CH_BUS_MODE_t)XMC_SPI_CH_BUS_MODE_MASTER,
+    //                        .selo_inversion = XMC_SPI_CH_SLAVE_SEL_INV_TO_MSLS,
+    //                        .parity_mode = XMC_USIC_CH_PARITY_MODE_NONE},
+    //     .mosi = {.port = (XMC_GPIO_PORT_t *)PORT3_BASE, .pin = (uint8_t)8},
+    //     .mosi_config = {.mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT1,
+    //                     .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
+    //                     .output_strength = XMC_GPIO_OUTPUT_STRENGTH_MEDIUM},
+    //     .miso = {.port = (XMC_GPIO_PORT_t *)PORT3_BASE, .pin = (uint8_t)7},
+    //     .miso_config =
+    //         {
+    //             .mode = XMC_GPIO_MODE_INPUT_TRISTATE,
+    //         },
+    //     .input_source = XMC_INPUT_C,
+    //     .sclkout = {.port = (XMC_GPIO_PORT_t *)PORT3_BASE, .pin = (uint8_t)9},
+    //     .sclkout_config = {.mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT1,
+    //                        .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
+    //                        .output_strength = XMC_GPIO_OUTPUT_STRENGTH_MEDIUM},
+    // };
+
+    // XMC_SPI_t XMC_SPI_1 = {
+    //     .channel = XMC_SPI0_CH1,
+    //     .channel_config = {.baudrate = 20003906U,
+    //                        .bus_mode = (XMC_SPI_CH_BUS_MODE_t)XMC_SPI_CH_BUS_MODE_MASTER,
+    //                        .selo_inversion = XMC_SPI_CH_SLAVE_SEL_INV_TO_MSLS,
+    //                        .parity_mode = XMC_USIC_CH_PARITY_MODE_NONE},
+    //     .mosi = {.port = (XMC_GPIO_PORT_t *)PORT3_BASE, .pin = (uint8_t)5},
+    //     .mosi_config = {.mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT4,
+    //                     .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
+    //                     .output_strength = XMC_GPIO_OUTPUT_STRENGTH_MEDIUM},
+    //     .miso = {.port = (XMC_GPIO_PORT_t *)PORT4_BASE, .pin = (uint8_t)0},
+    //     .miso_config =
+    //         {
+    //             .mode = XMC_GPIO_MODE_INPUT_TRISTATE,
+    //         },
+    //     .input_source = XMC_INPUT_E,
+    //     .sclkout = {.port = (XMC_GPIO_PORT_t *)PORT3_BASE, .pin = (uint8_t)6},
+    //     .sclkout_config = {.mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT4,
+    //                        .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
+    //                        .output_strength = XMC_GPIO_OUTPUT_STRENGTH_MEDIUM},
+    // };
+
+    // XMC_SPI_t XMC_SPI_2 = {
+    //     .channel = XMC_SPI2_CH1,
+    //     .channel_config = {.baudrate = 20003906U,
+    //                        .bus_mode = (XMC_SPI_CH_BUS_MODE_t)XMC_SPI_CH_BUS_MODE_MASTER,
+    //                        .selo_inversion = XMC_SPI_CH_SLAVE_SEL_INV_TO_MSLS,
+    //                        .parity_mode = XMC_USIC_CH_PARITY_MODE_NONE},
+    //     .mosi = {.port = (XMC_GPIO_PORT_t *)PORT3_BASE, .pin = (uint8_t)11},
+    //     .mosi_config = {.mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT1,
+    //                     .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
+    //                     .output_strength = XMC_GPIO_OUTPUT_STRENGTH_MEDIUM},
+    //     .miso = {.port = (XMC_GPIO_PORT_t *)PORT3_BASE, .pin = (uint8_t)12},
+    //     .miso_config =
+    //         {
+    //             .mode = XMC_GPIO_MODE_INPUT_TRISTATE,
+    //         },
+    //     .input_source = XMC_INPUT_D,
+    //     .sclkout = {.port = (XMC_GPIO_PORT_t *)PORT3_BASE, .pin = (uint8_t)13},
+    //     .sclkout_config = {.mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT1,
+    //                        .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
+    //                        .output_strength = XMC_GPIO_OUTPUT_STRENGTH_MEDIUM},
+    // };
+
+    // Only two serial objects are possible: Serial and Serial1 so anymore serial interfaces has to
+    // overwrite/reuse the existing serial objects
+    //  Will overwrite Serial
+    // XMC_SPI_t XMC_SPI_3 =
+    //{
+    //     .channel          = XMC_SPI0_CH0,
+    //     .channel_config   = {
+    //         .baudrate = 20003906U,
+    //         .bus_mode = (XMC_SPI_CH_BUS_MODE_t)XMC_SPI_CH_BUS_MODE_MASTER,
+    //         .selo_inversion = XMC_SPI_CH_SLAVE_SEL_INV_TO_MSLS,
+    //         .parity_mode = XMC_USIC_CH_PARITY_MODE_NONE
+    //     },
+    //     .mosi             = {
+    //         .port = (XMC_GPIO_PORT_t*)PORT5_BASE,
+    //         .pin  = (uint8_t)1
+    //     },
+    //     .mosi_config      = {
+    //         .mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT1,
+    //         .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
+    //         .output_strength = XMC_GPIO_OUTPUT_STRENGTH_MEDIUM
+    //     },
+    //     .miso             = {
+    //         .port = (XMC_GPIO_PORT_t*)PORT5_BASE,
+    //         .pin  = (uint8_t)0
+    //     },
+    //     .miso_config      = {
+    //         .mode = XMC_GPIO_MODE_INPUT_TRISTATE,
+    //     },
+    //     .input_source     = XMC_INPUT_D,
+    //     .sclkout = {
+    //         .port = (XMC_GPIO_PORT_t*)PORT0_BASE,
+    //         .pin  = (uint8_t)8
+    //     },
+    //     .sclkout_config   = {
+    //         .mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT2,
+    //         .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
+    //         .output_strength = XMC_GPIO_OUTPUT_STRENGTH_MEDIUM
+    //     },
+    // };
+
+    // Will overwrite Serial1
+    // XMC_SPI_t XMC_SPI_4 =
+    //{
+    //    .channel          = XMC_SPI1_CH0,
+    //    .channel_config   = {
+    //        .baudrate = 20003906U,
+    //        .bus_mode = (XMC_SPI_CH_BUS_MODE_t)XMC_SPI_CH_BUS_MODE_MASTER,
+    //        .selo_inversion = XMC_SPI_CH_SLAVE_SEL_INV_TO_MSLS,
+    //        .parity_mode = XMC_USIC_CH_PARITY_MODE_NONE
+    //    },
+    //    .mosi             = {
+    //        .port = (XMC_GPIO_PORT_t*)PORT0_BASE,
+    //        .pin  = (uint8_t)5
+    //    },
+    //    .mosi_config      = {
+    //        .mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT2,
+    //        .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
+    //        .output_strength = XMC_GPIO_OUTPUT_STRENGTH_MEDIUM
+    //    },
+    //    .miso             = {
+    //        .port = (XMC_GPIO_PORT_t*)PORT0_BASE,
+    //        .pin  = (uint8_t)4
+    //    },
+    //    .miso_config      = {
+    //        .mode = XMC_GPIO_MODE_INPUT_TRISTATE,
+    //    },
+    //    .input_source     = XMC_INPUT_A,
+    //    .sclkout = {
+    //        .port = (XMC_GPIO_PORT_t*)PORT0_BASE,
+    //        .pin  = (uint8_t)11
+    //    },
+    //    .sclkout_config   = {
+    //        .mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT2,
+    //        .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH,
+    //        .output_strength = XMC_GPIO_OUTPUT_STRENGTH_MEDIUM
+    //    },
+    //};
+
+    // Two I2C instances possible
+    // XMC_I2C_t XMC_I2C_0 = {.channel = XMC_I2C1_CH1,
+    //                        .channel_config = {.baudrate = (uint32_t)(100000U), .address = 0U},
+    //                        .sda = {.port = (XMC_GPIO_PORT_t *)PORT3_BASE, .pin = (uint8_t)15},
+    //                        .sda_config = {.mode = XMC_GPIO_MODE_OUTPUT_OPEN_DRAIN_ALT2,
+    //                                       .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH},
+    //                        .scl = {.port = (XMC_GPIO_PORT_t *)PORT0_BASE, .pin = (uint8_t)13},
+    //                        .scl_config = {.mode = XMC_GPIO_MODE_OUTPUT_OPEN_DRAIN_ALT2,
+    //                                       .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH},
+    //                        .input_source_dx0 = XMC_INPUT_A,
+    //                        .input_source_dx1 = XMC_INPUT_B,
+    //                        .slave_receive_irq_num = (IRQn_Type)91,
+    //                        .slave_receive_irq_service_request = 1,
+    //                        .protocol_irq_num = (IRQn_Type)92,
+    //                        .protocol_irq_service_request = 2};
+    // XMC_I2C_t XMC_I2C_1 = {.channel = XMC_I2C1_CH0,
+    //                        .channel_config = {.baudrate = (uint32_t)(100000U), .address = 0U},
+    //                        .sda = {.port = (XMC_GPIO_PORT_t *)PORT0_BASE, .pin = (uint8_t)5},
+    //                        .sda_config = {.mode = XMC_GPIO_MODE_OUTPUT_OPEN_DRAIN_ALT2,
+    //                                       .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH},
+    //                        .scl = {.port = (XMC_GPIO_PORT_t *)PORT0_BASE, .pin = (uint8_t)11},
+    //                        .scl_config = {.mode = XMC_GPIO_MODE_OUTPUT_OPEN_DRAIN_ALT2,
+    //                                       .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH},
+    //                        .input_source_dx0 = XMC_INPUT_B,
+    //                        .input_source_dx1 = XMC_INPUT_A,
+    //                        .slave_receive_irq_num = (IRQn_Type)93,
+    //                        .slave_receive_irq_service_request = 3,
+    //                        .protocol_irq_num = (IRQn_Type)94,
+    //                        .protocol_irq_service_request = 4};
+
+    // // XMC_I2S instance
+    // XMC_I2S_t i2s_config = {.input_config = {.mode = XMC_GPIO_MODE_INPUT_TRISTATE,
+    //                                          .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH},
+    //                         .sclk_config = {.mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT1,
+    //                                         .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH},
+    //                         .wa_config = {.mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT1,
+    //                                       .output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH},
+    //                         .protocol_irq_num = (IRQn_Type)USIC2_2_IRQn,
+    //                         .protocol_irq_service_request = 2};
+
+    //     // XMC CAN instance
+    //     #ifdef CAN_xmc
+    // XMC_ARD_CAN_t XMC_CAN_0 = {.can_node = CAN_NODE1,
+    //                            .can_node_num = XMC_NODE_NUM_1,
+    //                            .can_clock = XMC_CAN_CANCLKSRC_FPERI,
+    //                            .can_frequency = (uint32_t)144000000,
+    //                            .rx = {.port = (XMC_GPIO_PORT_t *)PORT1_BASE, .pin = (uint8_t)13},
+    //                            .rx_config = {.mode = XMC_GPIO_MODE_INPUT_TRISTATE},
+    //                            .tx = {.port = (XMC_GPIO_PORT_t *)PORT1_BASE, .pin = (uint8_t)12},
+    //                            .tx_config = {.mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT2},
+    //                            .node_input = CAN_NODE1_RXD_P1_13,
+    //                            .irq_num = CAN0_7_IRQn,
+    //                            .irq_service_request = 7u};
+    //     #endif
+
+    // Serial Interrupt and event handling
+    #ifdef __cplusplus
+extern "C" {
+    #endif
+void serialEventRun();
+void serialEvent() __attribute__((weak));
+void serialEvent1() __attribute__((weak));
+
+void serialEventRun() {
+    if (serialEvent) {
+        if (Serial.available())
+            serialEvent();
+    }
+    if (serialEvent1) {
+        if (Serial1.available())
+            serialEvent1();
+    }
+}
+
+void USIC0_0_IRQHandler() { Serial.IrqHandler(); }
+
+void USIC1_0_IRQHandler() { Serial1.IrqHandler(); }
+    #ifdef __cplusplus
+}
+    #endif
 
-//     // Serial Interrupt and event handling
-//     #ifdef __cplusplus
-// extern "C" {
-//     #endif
-// void serialEventRun();
-// void serialEvent() __attribute__((weak));
-// void serialEvent1() __attribute__((weak));
-
-// void serialEventRun() {
-//     if (serialEvent) {
-//         if (Serial.available())
-//             serialEvent();
-//     }
-//     if (serialEvent1) {
-//         if (Serial1.available())
-//             serialEvent1();
-//     }
-// }
-
-// void USIC0_0_IRQHandler() { Serial.IrqHandler(); }
-
-// void USIC1_0_IRQHandler() { Serial1.IrqHandler(); }
-//     #ifdef __cplusplus
-// }
-//     #endif
 #endif /* ARDUINO_MAIN */
 
-// #ifdef __cplusplus
-// extern HardwareSerial Serial;
-// extern HardwareSerial Serial1;
-// #endif /* cplusplus */
-
 #endif /* PINS_ARDUINO_H_ */