238 lines
7.1 KiB
C
238 lines
7.1 KiB
C
/**
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* Copyright (c) 2015 - 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 led_softblink_example_main main.c
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* @{
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* @ingroup led_softblink_example
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* @brief LED Soft Blink 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 "led_softblink.h"
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#include "app_error.h"
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#include "sdk_errors.h"
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#include "app_timer.h"
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#include "nrf_drv_clock.h"
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#include "app_util_platform.h"
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#include "bsp.h"
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#include "nfc_t2t_lib.h"
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#include "nfc_uri_msg.h"
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#include "nrf_delay.h"
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#if defined(BOARD_PCA10040)
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//URL "nordicsemi.com/start52dk"
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static const uint8_t m_url[] = {'n', 'o', 'r', 'd', 'i', 'c', 's', 'e', 'm', 'i', '.',
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'c', 'o', 'm','/','s','t','a','r','t','5','2','d','k'};
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#elif defined (BOARD_PCA10056)
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//URL "nordicsemi.com/start52840dk"
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static const uint8_t m_url[] = {'n', 'o', 'r', 'd', 'i', 'c', 's', 'e', 'm', 'i', '.',
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'c', 'o', 'm','/','s','t','a','r','t','5','2','8','4','0','d','k'};
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#else
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#error "Board is not supported"
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#endif
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uint8_t m_ndef_msg_buf[256]; ///< Buffer for the NFC NDEF message.
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volatile uint32_t m_active_led_mask; ///< LED mask.
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volatile bool m_update_softblink = false; ///< Flag for signaling a change of the LED mask for the softbling engine.
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/**
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* @brief Callback function for handling NFC events.
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*/
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static void nfc_callback(void * p_context, nfc_t2t_event_t event, const uint8_t * p_data, size_t data_length)
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{
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(void)p_context;
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switch (event)
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{
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case NFC_T2T_EVENT_FIELD_ON:
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(void)led_softblink_stop();
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bsp_board_leds_on();
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break;
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case NFC_T2T_EVENT_FIELD_OFF:
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bsp_board_leds_off();
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(void)led_softblink_start(m_active_led_mask);
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break;
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case NFC_T2T_EVENT_DATA_READ:
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break;
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default:
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break;
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}
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}
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static void nfc_init(void)
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{
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ret_code_t err_code;
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uint32_t len = sizeof(m_ndef_msg_buf);
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/* Set up NFC */
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err_code = nfc_t2t_setup(nfc_callback, NULL);
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APP_ERROR_CHECK(err_code);
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/* Provide information about available buffer size to encoding function */
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/* Encode URI message into buffer */
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err_code = nfc_uri_msg_encode(NFC_URI_HTTP_WWW,
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m_url,
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sizeof(m_url),
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m_ndef_msg_buf,
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&len);
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APP_ERROR_CHECK(err_code);
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/* Set created message as the NFC payload */
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err_code = nfc_t2t_payload_set(m_ndef_msg_buf, len);
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APP_ERROR_CHECK(err_code);
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/* Start sensing NFC field */
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err_code = nfc_t2t_emulation_start();
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APP_ERROR_CHECK(err_code);
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}
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/**
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* @brief Function for LEDs initialization.
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*/
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static void leds_init(void)
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{
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ret_code_t err_code;
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led_sb_init_params_t led_sb_init_params = LED_SB_INIT_DEFAULT_PARAMS(LEDS_MASK);
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led_sb_init_params.off_time_ticks = 32768;
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led_sb_init_params.on_time_ticks = 16384;
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led_sb_init_params.duty_cycle_max = 200;
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led_sb_init_params.duty_cycle_min = 4;
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led_sb_init_params.duty_cycle_step = 1;
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err_code = led_softblink_init(&led_sb_init_params);
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APP_ERROR_CHECK(err_code);
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}
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static void clock_init(void)
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{
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uint32_t err_code;
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err_code = nrf_drv_clock_init();
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APP_ERROR_CHECK(err_code);
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nrf_drv_clock_lfclk_request(NULL);
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}
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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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switch (evt)
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{
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case BSP_EVENT_KEY_0:
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m_active_led_mask = BSP_LED_0_MASK;
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break;
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case BSP_EVENT_KEY_1:
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m_active_led_mask = BSP_LED_1_MASK;
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break;
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case BSP_EVENT_KEY_2:
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m_active_led_mask = BSP_LED_2_MASK;
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break;
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case BSP_EVENT_KEY_3:
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m_active_led_mask = BSP_LED_3_MASK;
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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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m_update_softblink = true; // request update of blinked LED
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}
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/**
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* @brief Function for updating LED to be softly blinking.
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*/
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static void softblink_led_update(void)
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{
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uint32_t err_code;
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if (m_update_softblink == false)
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{
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// nothing to do
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return;
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}
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m_update_softblink = false;
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err_code = led_softblink_stop();
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APP_ERROR_CHECK(err_code);
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err_code = led_softblink_start(m_active_led_mask);
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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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uint32_t err_code;
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clock_init();
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// Start APP_TIMER to generate timeouts.
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err_code = app_timer_init();
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APP_ERROR_CHECK(err_code);
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leds_init();
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err_code = bsp_init(BSP_INIT_BUTTONS, bsp_evt_handler);
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APP_ERROR_CHECK(err_code);
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nfc_init();
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m_active_led_mask = BSP_LED_0_MASK;
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err_code = led_softblink_start(m_active_led_mask);
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APP_ERROR_CHECK(err_code);
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while (true)
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{
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__WFE();
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softblink_led_update();
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}
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}
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/** @} */
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