154 lines
4.6 KiB
C
154 lines
4.6 KiB
C
/**
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* Copyright (c) 2014 - 2020, Nordic Semiconductor ASA
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form, except as embedded into a Nordic
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* Semiconductor ASA integrated circuit in a product or a software update for
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* such product, must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* 4. This software, with or without modification, must only be used with a
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* Nordic Semiconductor ASA integrated circuit.
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*
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* 5. Any software provided in binary form under this license must not be reverse
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* engineered, decompiled, modified and/or disassembled.
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*
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* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/** @file
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*
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* @defgroup bsp_example_main main.c
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* @{
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* @ingroup bsp_example
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* @brief BSP Example Application main file.
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*
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*/
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#include <stdbool.h>
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#include <stdint.h>
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#include "boards.h"
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#include "bsp.h"
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#include "app_timer.h"
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#include "nordic_common.h"
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#include "nrf_error.h"
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#include "nrf_log.h"
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#include "nrf_log_ctrl.h"
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#include "nrf_log_default_backends.h"
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#define BUTTON_PREV_ID 0 /**< Button used to switch the state. */
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#define BUTTON_NEXT_ID 1 /**< Button used to switch the state. */
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static bsp_indication_t actual_state = BSP_INDICATE_FIRST; /**< Currently indicated state. */
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static const char * indications_list[] = BSP_INDICATIONS_LIST;
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/**@brief Function for handling bsp events.
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*/
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void bsp_evt_handler(bsp_event_t evt)
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{
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uint32_t err_code;
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switch (evt)
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{
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case BSP_EVENT_KEY_0:
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if (actual_state != BSP_INDICATE_FIRST)
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actual_state--;
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else
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actual_state = BSP_INDICATE_LAST;
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break;
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case BSP_EVENT_KEY_1:
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if (actual_state != BSP_INDICATE_LAST)
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actual_state++;
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else
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actual_state = BSP_INDICATE_FIRST;
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break;
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default:
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return; // no implementation needed
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}
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err_code = bsp_indication_set(actual_state);
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NRF_LOG_INFO("%s", (uint32_t)indications_list[actual_state]);
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APP_ERROR_CHECK(err_code);
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}
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/**@brief Function for initializing low frequency clock.
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*/
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void clock_initialization()
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{
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NRF_CLOCK->LFCLKSRC = (CLOCK_LFCLKSRC_SRC_Xtal << CLOCK_LFCLKSRC_SRC_Pos);
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NRF_CLOCK->EVENTS_LFCLKSTARTED = 0;
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NRF_CLOCK->TASKS_LFCLKSTART = 1;
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while (NRF_CLOCK->EVENTS_LFCLKSTARTED == 0)
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{
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// Do nothing.
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}
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}
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/**@brief Function for initializing bsp module.
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*/
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void bsp_configuration()
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{
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uint32_t err_code;
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err_code = bsp_init(BSP_INIT_LEDS | BSP_INIT_BUTTONS, bsp_evt_handler);
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APP_ERROR_CHECK(err_code);
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}
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/**
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* @brief Function for application main entry.
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*/
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int main(void)
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{
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clock_initialization();
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uint32_t err_code = app_timer_init();
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APP_ERROR_CHECK(err_code);
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APP_ERROR_CHECK(NRF_LOG_INIT(NULL));
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NRF_LOG_DEFAULT_BACKENDS_INIT();
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NRF_LOG_INFO("BSP example started.");
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bsp_configuration();
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while (true)
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{
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NRF_LOG_FLUSH();
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__SEV();
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__WFE();
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__WFE();
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// no implementation needed
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}
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}
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/** @} */
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