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diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/examples/peripheral/saadc/main.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/examples/peripheral/saadc/main.c
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+/**
+ * Copyright (c) 2014 - 2018, Nordic Semiconductor ASA
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form, except as embedded into a Nordic
+ *    Semiconductor ASA integrated circuit in a product or a software update for
+ *    such product, 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.
+ * 
+ * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ * 
+ * 4. This software, with or without modification, must only be used with a
+ *    Nordic Semiconductor ASA integrated circuit.
+ * 
+ * 5. Any software provided in binary form under this license must not be reverse
+ *    engineered, decompiled, modified and/or disassembled.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA 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.
+ * 
+ */
+/** @file
+ * @defgroup nrf_adc_example main.c
+ * @{
+ * @ingroup nrf_adc_example
+ * @brief ADC Example Application main file.
+ *
+ * This file contains the source code for a sample application using ADC.
+ *
+ * @image html example_board_setup_a.jpg "Use board setup A for this example."
+ */
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include "nrf.h"
+#include "nrf_drv_saadc.h"
+#include "nrf_drv_ppi.h"
+#include "nrf_drv_timer.h"
+#include "boards.h"
+#include "app_error.h"
+#include "nrf_delay.h"
+#include "app_util_platform.h"
+#include "nrf_pwr_mgmt.h"
+
+#include "nrf_log.h"
+#include "nrf_log_ctrl.h"
+#include "nrf_log_default_backends.h"
+
+#define SAMPLES_IN_BUFFER 5
+volatile uint8_t state = 1;
+
+static const nrf_drv_timer_t m_timer = NRF_DRV_TIMER_INSTANCE(0);
+static nrf_saadc_value_t     m_buffer_pool[2][SAMPLES_IN_BUFFER];
+static nrf_ppi_channel_t     m_ppi_channel;
+static uint32_t              m_adc_evt_counter;
+
+
+void timer_handler(nrf_timer_event_t event_type, void * p_context)
+{
+
+}
+
+
+void saadc_sampling_event_init(void)
+{
+    ret_code_t err_code;
+
+    err_code = nrf_drv_ppi_init();
+    APP_ERROR_CHECK(err_code);
+
+    nrf_drv_timer_config_t timer_cfg = NRF_DRV_TIMER_DEFAULT_CONFIG;
+    timer_cfg.bit_width = NRF_TIMER_BIT_WIDTH_32;
+    err_code = nrf_drv_timer_init(&m_timer, &timer_cfg, timer_handler);
+    APP_ERROR_CHECK(err_code);
+
+    /* setup m_timer for compare event every 400ms */
+    uint32_t ticks = nrf_drv_timer_ms_to_ticks(&m_timer, 400);
+    nrf_drv_timer_extended_compare(&m_timer,
+                                   NRF_TIMER_CC_CHANNEL0,
+                                   ticks,
+                                   NRF_TIMER_SHORT_COMPARE0_CLEAR_MASK,
+                                   false);
+    nrf_drv_timer_enable(&m_timer);
+
+    uint32_t timer_compare_event_addr = nrf_drv_timer_compare_event_address_get(&m_timer,
+                                                                                NRF_TIMER_CC_CHANNEL0);
+    uint32_t saadc_sample_task_addr   = nrf_drv_saadc_sample_task_get();
+
+    /* setup ppi channel so that timer compare event is triggering sample task in SAADC */
+    err_code = nrf_drv_ppi_channel_alloc(&m_ppi_channel);
+    APP_ERROR_CHECK(err_code);
+
+    err_code = nrf_drv_ppi_channel_assign(m_ppi_channel,
+                                          timer_compare_event_addr,
+                                          saadc_sample_task_addr);
+    APP_ERROR_CHECK(err_code);
+}
+
+
+void saadc_sampling_event_enable(void)
+{
+    ret_code_t err_code = nrf_drv_ppi_channel_enable(m_ppi_channel);
+
+    APP_ERROR_CHECK(err_code);
+}
+
+
+void saadc_callback(nrf_drv_saadc_evt_t const * p_event)
+{
+    if (p_event->type == NRF_DRV_SAADC_EVT_DONE)
+    {
+        ret_code_t err_code;
+
+        err_code = nrf_drv_saadc_buffer_convert(p_event->data.done.p_buffer, SAMPLES_IN_BUFFER);
+        APP_ERROR_CHECK(err_code);
+
+        int i;
+        NRF_LOG_INFO("ADC event number: %d", (int)m_adc_evt_counter);
+
+        for (i = 0; i < SAMPLES_IN_BUFFER; i++)
+        {
+            NRF_LOG_INFO("%d", p_event->data.done.p_buffer[i]);
+        }
+        m_adc_evt_counter++;
+    }
+}
+
+
+void saadc_init(void)
+{
+    ret_code_t err_code;
+    nrf_saadc_channel_config_t channel_config =
+        NRF_DRV_SAADC_DEFAULT_CHANNEL_CONFIG_SE(NRF_SAADC_INPUT_AIN0);
+
+    err_code = nrf_drv_saadc_init(NULL, saadc_callback);
+    APP_ERROR_CHECK(err_code);
+
+    err_code = nrf_drv_saadc_channel_init(0, &channel_config);
+    APP_ERROR_CHECK(err_code);
+
+    err_code = nrf_drv_saadc_buffer_convert(m_buffer_pool[0], SAMPLES_IN_BUFFER);
+    APP_ERROR_CHECK(err_code);
+
+    err_code = nrf_drv_saadc_buffer_convert(m_buffer_pool[1], SAMPLES_IN_BUFFER);
+    APP_ERROR_CHECK(err_code);
+
+}
+
+
+/**
+ * @brief Function for main application entry.
+ */
+int main(void)
+{
+    uint32_t err_code = NRF_LOG_INIT(NULL);
+    APP_ERROR_CHECK(err_code);
+
+    NRF_LOG_DEFAULT_BACKENDS_INIT();
+
+    ret_code_t ret_code = nrf_pwr_mgmt_init();
+    APP_ERROR_CHECK(ret_code);
+
+    saadc_init();
+    saadc_sampling_event_init();
+    saadc_sampling_event_enable();
+    NRF_LOG_INFO("SAADC HAL simple example started.");
+
+    while (1)
+    {
+        nrf_pwr_mgmt_run();
+        NRF_LOG_FLUSH();
+    }
+}
+
+
+/** @} */