baremetal: Add LED blink example for pca10040 board using Keil toolchain

This development board based on Nordic nRF52832 ARM MCU:

 * https://www.nordicsemi.com/Software-and-Tools/Development-Kits/nRF52-DK

Change-Id: Ib29b2d9afcaf1d56c834557982363aa6e5493259
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

10 files changed, 893 insertions, 0 deletions

diff --git a/examples/baremetal/baremetal.qbs b/examples/baremetal/baremetal.qbs
index 38fc7a61c..8cb9692f2 100644
--- a/examples/baremetal/baremetal.qbs
+++ b/examples/baremetal/baremetal.qbs
@@ -60,5 +60,6 @@ Project {
         "msp430f5529/msp430f5529.qbs",
         "cy7c68013a/cy7c68013a.qbs",
         "stm32f103/stm32f103.qbs",
+        "pca10040/pca10040.qbs",
     ]
 }
diff --git a/examples/baremetal/pca10040/greenblink/README.md b/examples/baremetal/pca10040/greenblink/README.md
new file mode 100644
index 000000000..84c49fff1
--- /dev/null
+++ b/examples/baremetal/pca10040/greenblink/README.md
@@ -0,0 +1,8 @@
+This example demonstrates how to build a bare-metal application using
+different ARM toolchains. It is designed for the Nordic pca10040
+evaluation kit (based on nRF52832 MCU) and simply flashes the green
+LED on the board.
+
+The following toolchains are supported:
+
+  * KEIL Microcontroller Development Kit
diff --git a/examples/baremetal/pca10040/greenblink/gpio.c b/examples/baremetal/pca10040/greenblink/gpio.c
new file mode 100644
index 000000000..c86f6ac5e
--- /dev/null
+++ b/examples/baremetal/pca10040/greenblink/gpio.c
@@ -0,0 +1,96 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 Denis Shienkov <denis.shienkov@gmail.com>
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of Qbs.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "gpio.h"
+#include "system.h"
+
+#define GPIO_GREEN_LED_PIN_POS      (17u)
+#define GPIO_GREEN_LED_PIN          (1u << GPIO_GREEN_LED_PIN_POS)
+
+// Pin direction attributes.
+#define GPIO_PIN_CNF_DIR_POS        (0u) // Position of DIR field.
+#define GPIO_PIN_CNF_DIR_OUT        (1u) // Configure pin as an output pin.
+#define GPIO_PIN_CNF_DIR_MSK        (GPIO_PIN_CNF_DIR_OUT << GPIO_PIN_CNF_DIR_POS)
+
+// Pin input buffer attributes.
+#define GPIO_PIN_CNF_INPUT_POS      (1u) // Position of INPUT field.
+#define GPIO_PIN_CNF_INPUT_OFF      (1u) // Disconnect input buffer.
+#define GPIO_PIN_CNF_INPUT_MSK      (GPIO_PIN_CNF_INPUT_OFF << GPIO_PIN_CNF_INPUT_POS)
+
+// Pin pull attributes.
+#define GPIO_PIN_CNF_PULL_POS       (2u) // Position of PULL field.
+#define GPIO_PIN_CNF_PULL_OFF       (0u) // No pull.
+#define GPIO_PIN_CNF_PULL_MSK       (GPIO_PIN_CNF_PULL_OFF << GPIO_PIN_CNF_PULL_POS)
+
+// Pin drive attributes.
+#define GPIO_PIN_CNF_DRIVE_POS      (8u) // Position of DRIVE field.
+#define GPIO_PIN_CNF_DRIVE_S0S1     (0u) // Standard '0', standard '1'.
+#define GPIO_PIN_CNF_DRIVE_MSK      (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_POS)
+
+// Pin sense attributes.
+#define GPIO_PIN_CNF_SENSE_POS      (16u) // Position of SENSE field.
+#define GPIO_PIN_CNF_SENSE_OFF      (0u) // Disabled.
+#define GPIO_PIN_CNF_SENSE_MSK      (GPIO_PIN_CNF_SENSE_OFF << GPIO_PIN_CNF_SENSE_POS)
+
+void gpio_init_green_led(void)
+{
+    GPIOD_REGS_MAP->PIN_CNF[GPIO_GREEN_LED_PIN_POS] = (GPIO_PIN_CNF_DIR_MSK
+                                                       | GPIO_PIN_CNF_INPUT_MSK
+                                                       | GPIO_PIN_CNF_PULL_MSK
+                                                       | GPIO_PIN_CNF_DRIVE_MSK
+                                                       | GPIO_PIN_CNF_SENSE_MSK);
+}
+
+void gpio_toggle_green_led(void)
+{
+    const uint32_t gpio_state = GPIOD_REGS_MAP->OUT;
+    GPIOD_REGS_MAP->OUTSET = (GPIO_GREEN_LED_PIN & ~gpio_state);
+    GPIOD_REGS_MAP->OUTCLR = (GPIO_GREEN_LED_PIN & gpio_state);
+}
diff --git a/examples/baremetal/pca10040/greenblink/gpio.h b/examples/baremetal/pca10040/greenblink/gpio.h
new file mode 100644
index 000000000..9e931b715
--- /dev/null
+++ b/examples/baremetal/pca10040/greenblink/gpio.h
@@ -0,0 +1,65 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 Denis Shienkov <denis.shienkov@gmail.com>
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of Qbs.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef GPIO_H
+#define GPIO_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void gpio_init_green_led(void);
+void gpio_toggle_green_led(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // GPIO_H
diff --git a/examples/baremetal/pca10040/greenblink/greenblink.qbs b/examples/baremetal/pca10040/greenblink/greenblink.qbs
new file mode 100644
index 000000000..8f1c7650c
--- /dev/null
+++ b/examples/baremetal/pca10040/greenblink/greenblink.qbs
@@ -0,0 +1,105 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 Denis Shienkov <denis.shienkov@gmail.com>
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of Qbs.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import qbs
+
+CppApplication {
+    condition: {
+        if (!qbs.architecture.startsWith("arm"))
+            return false;
+        return qbs.toolchain.contains("keil")
+    }
+    name: "pca10040-greenblink"
+    cpp.cLanguageVersion: "c99"
+    cpp.positionIndependentCode: false
+
+    //
+    // KEIL-specific properties and sources.
+    //
+
+    Properties {
+        condition: qbs.toolchain.contains("keil")
+        cpp.driverFlags: [
+            "--cpu", "cortex-m4.fp.sp"
+        ]
+    }
+
+    Group {
+        condition: qbs.toolchain.contains("keil")
+        name: "KEIL"
+        prefix: "keil/"
+        Group {
+            name: "Startup"
+            fileTags: ["asm"]
+            files: ["startup.s"]
+        }
+        Group {
+            name: "Linker Script"
+            fileTags: ["linkerscript"]
+            files: ["flash.sct"]
+        }
+    }
+
+    //
+    // Common code.
+    //
+
+    Group {
+        name: "Gpio"
+        files: ["gpio.c", "gpio.h"]
+    }
+
+    Group {
+        name: "System"
+        files: ["system.h"]
+    }
+
+    files: ["main.c"]
+}
diff --git a/examples/baremetal/pca10040/greenblink/keil/flash.sct b/examples/baremetal/pca10040/greenblink/keil/flash.sct
new file mode 100644
index 000000000..29843331a
--- /dev/null
+++ b/examples/baremetal/pca10040/greenblink/keil/flash.sct
@@ -0,0 +1,65 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 Denis Shienkov <denis.shienkov@gmail.com>
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of Qbs.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+;; Load region size_region.
+LR_IROM1 0x00000000 0x00080000 {
+    ;; Load address = execution address.
+    ER_IROM1 0x00000000 0x00080000 {
+        *.o (RESET, +First)
+        *(InRoot$$Sections)
+        .ANY (+RO)
+        .ANY (+XO)
+    }
+
+    ; RW data.
+    RW_IRAM1 0x20000000 0x00008000 {
+        .ANY (+RW +ZI)
+    }
+}
diff --git a/examples/baremetal/pca10040/greenblink/keil/startup.s b/examples/baremetal/pca10040/greenblink/keil/startup.s
new file mode 100644
index 000000000..c4a197d43
--- /dev/null
+++ b/examples/baremetal/pca10040/greenblink/keil/startup.s
@@ -0,0 +1,342 @@
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; Copyright (C) 2020 Denis Shienkov <denis.shienkov@gmail.com>
+;; Contact: https://www.qt.io/licensing/
+;;
+;; This file is part of the examples of Qbs.
+;;
+;; $QT_BEGIN_LICENSE:BSD$
+;; Commercial License Usage
+;; Licensees holding valid commercial Qt licenses may use this file in
+;; accordance with the commercial license agreement provided with the
+;; Software or, alternatively, in accordance with the terms contained in
+;; a written agreement between you and The Qt Company. For licensing terms
+;; and conditions see https://www.qt.io/terms-conditions. For further
+;; information use the contact form at https://www.qt.io/contact-us.
+;;
+;; BSD License Usage
+;; Alternatively, you may use this file under the terms of the BSD license
+;; as follows:
+;;
+;; "Redistribution and use in source and binary forms, with or without
+;; modification, are permitted provided that the following conditions are
+;; met:
+;;   * Redistributions of source code must retain the above copyright
+;;     notice, this list of conditions and the following disclaimer.
+;;   * Redistributions in binary form must reproduce the above copyright
+;;     notice, this list of conditions and the following disclaimer in
+;;     the documentation and/or other materials provided with the
+;;     distribution.
+;;   * Neither the name of The Qt Company Ltd nor the names of its
+;;     contributors may be used to endorse or promote products derived
+;;     from this software without specific prior written permission.
+;;
+;;
+;; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+;; "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+;; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+;; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+;; OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+;; SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+;; LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+;; DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+;; THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+;; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+;; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+;;
+;; $QT_END_LICENSE$
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+_size_of_stack EQU 0x2000
+_size_of_heap EQU 0x2000
+
+;; Stack configuration.
+    AREA STACK, NOINIT, READWRITE, ALIGN=3
+_start_of_stack SPACE _size_of_stack
+_end_of_stack
+
+;; Heap configuration.
+    AREA HEAP, NOINIT, READWRITE, ALIGN=3
+_start_of_heap SPACE _size_of_heap
+_end_of_heap
+
+    PRESERVE8
+    THUMB
+
+;; Define the empty vectors table.
+    AREA RESET, DATA, READONLY
+_vectors_table
+    ;; Generic interrupts offset.
+    DCD    _end_of_stack    ; Initial stack pointer value.
+    DCD    reset_handler    ; Reset.
+    DCD    0                ; NMI.
+    DCD    0                ; Hard fault.
+    DCD    0                ; Memory management fault.
+    DCD    0                ; Bus fault.
+    DCD    0                ; Usage fault.
+    DCD    0                ; Reserved.
+    DCD    0                ; Reserved.
+    DCD    0                ; Reserved.
+    DCD    0                ; Reserved.
+    DCD    0                ; SVC.
+    DCD    0                ; Reserved.
+    DCD    0                ; Reserved.
+    DCD    0                ; PendSV.
+    DCD    0                ; SysTick.
+    ;; External interrupts offset.
+    DCD    0                ; Power clock.
+    DCD    0                ; Radio.
+    DCD    0                ; UARTE0/UART0.
+    DCD    0                ; SPIM0/SPIS0/TWIM0/TWIS0/SPI0/TWI0
+    DCD    0                ; SPIM1/SPIS1/TWIM1/TWIS1/SPI1/TWI1
+    DCD    0                ; NFCT
+    DCD    0                ; GPIOTE
+    DCD    0                ; SAADC
+    DCD    0                ; TIMER0
+    DCD    0                ; TIMER1
+    DCD    0                ; TIMER2
+    DCD    0                ; RTC0
+    DCD    0                ; TEMP
+    DCD    0                ; RNG
+    DCD    0                ; ECB
+    DCD    0                ; CCM/AAR
+    DCD    0                ; WDT
+    DCD    0                ; RTC1
+    DCD    0                ; QDEC
+    DCD    0                ; COMP/LPCOMP
+    DCD    0                ; SWI0/EGU0
+    DCD    0                ; SWI1/EGU1
+    DCD    0                ; SWI2/EGU2
+    DCD    0                ; SWI3/EGU3
+    DCD    0                ; SWI4/EGU4
+    DCD    0                ; SWI5/EGU5
+    DCD    0                ; TIMER3
+    DCD    0                ; TIMER4
+    DCD    0                ; PWM0
+    DCD    0                ; PDM
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; MWU
+    DCD    0                ; PWM1
+    DCD    0                ; PWM2
+    DCD    0                ; SPIM2/SPIS2/SPI2
+    DCD    0                ; RTC2
+    DCD    0                ; I2S
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+    DCD    0                ; Reserved
+_end_of_vectors_table
+
+_size_of_vectors_table EQU _end_of_vectors_table - _vectors_table
+
+    AREA |.text|, CODE, READONLY
+;; Reset handler.
+reset_handler PROC
+    EXPORT reset_handler [WEAK]
+    IMPORT main
+    LDR    R0, =main
+    BX     R0
+    ENDP
+    ALIGN
+
+    END
diff --git a/examples/baremetal/pca10040/greenblink/main.c b/examples/baremetal/pca10040/greenblink/main.c
new file mode 100644
index 000000000..89d3daeb6
--- /dev/null
+++ b/examples/baremetal/pca10040/greenblink/main.c
@@ -0,0 +1,69 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 Denis Shienkov <denis.shienkov@gmail.com>
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of Qbs.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "gpio.h"
+
+#include <stdint.h>
+
+static void some_delay(uint32_t counts)
+{
+    for (uint32_t index = 0u; index < counts; ++index)
+        __asm("nop");
+}
+
+int main(void)
+{
+    gpio_init_green_led();
+
+    while (1) {
+        gpio_toggle_green_led();
+        some_delay(1000000u);
+    }
+}
diff --git a/examples/baremetal/pca10040/greenblink/system.h b/examples/baremetal/pca10040/greenblink/system.h
new file mode 100644
index 000000000..bf9e4b352
--- /dev/null
+++ b/examples/baremetal/pca10040/greenblink/system.h
@@ -0,0 +1,84 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 Denis Shienkov <denis.shienkov@gmail.com>
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of Qbs.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef SYSTEM_H
+#define SYSTEM_H
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define __IO  volatile
+
+struct gpio_regs_map {
+    uint32_t      RESERVED0[321u];
+    __IO uint32_t OUT;
+    __IO uint32_t OUTSET;
+    __IO uint32_t OUTCLR;
+    __IO uint32_t IN;
+    __IO uint32_t DIR;
+    __IO uint32_t DIRSET;
+    __IO uint32_t DIRCLR;
+    __IO uint32_t LATCH;
+    __IO uint32_t DETECTMODE;
+    uint32_t      RESERVED1[118u];
+    __IO uint32_t PIN_CNF[32u];
+};
+
+#define GPIO_REGS_ADDRESS   (0x50000000u)
+#define GPIOD_REGS_MAP      ((struct gpio_regs_map *)GPIO_REGS_ADDRESS)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // SYSTEM_H
diff --git a/examples/baremetal/pca10040/pca10040.qbs b/examples/baremetal/pca10040/pca10040.qbs
new file mode 100644
index 000000000..caceae0b6
--- /dev/null
+++ b/examples/baremetal/pca10040/pca10040.qbs
@@ -0,0 +1,58 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 Denis Shienkov <denis.shienkov@gmail.com>
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of Qbs.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import qbs
+
+Project {
+    name: "Examples for pca10040 board"
+    references: [
+        "greenblink/greenblink.qbs"
+    ]
+}