shoes/liangjianbo/nRF5_SDK_17.0.0_9d13099/examples/peripheral/radio_test/main.c

/**
 * Copyright (c) 2014-2020, 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_radio_test_example_main main.c
 * @{
 * @ingroup nrf_radio_test_example
 * @brief Radio Test Example application main file.
 *
 * This file contains the source code for a sample application that uses the NRF_RADIO and is controlled through the serial port.
 *
 */


#include <stdint.h>
#include <stdbool.h>
#include <stdio.h>
#include "bsp.h"
#include "nrf.h"
#include "radio_cmd.h"
#include "app_uart.h"
#include "app_error.h"
#include "nordic_common.h"
#include "nrf_drv_clock.h"
#include "nrf_cli.h"
#include "nrf_cli_uart.h"

#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"
#if defined(NRF21540_DRIVER_ENABLE) && (NRF21540_DRIVER_ENABLE == 1)
#include "nrf21540.h"
#endif

NRF_CLI_UART_DEF(m_cli_uart_transport, 0, 64, 16);
NRF_CLI_DEF(m_cli_uart,
            "uart_cli:~$ ",
            &m_cli_uart_transport.transport,
            '\r',
            CLI_EXAMPLE_LOG_QUEUE_SIZE);


/**@brief Function for starting a command line interface that works on the UART transport layer.
 */
static void cli_start(void)
{
    ret_code_t ret;

    ret = nrf_cli_start(&m_cli_uart);
    APP_ERROR_CHECK(ret);
}


/**@brief Function for configuring UART for CLI.
 */
static void cli_init(void)
{
    ret_code_t ret;

    nrf_drv_uart_config_t uart_config = NRF_DRV_UART_DEFAULT_CONFIG;

    uart_config.pseltxd = TX_PIN_NUMBER;
    uart_config.pselrxd = RX_PIN_NUMBER;
    uart_config.hwfc    = NRF_UART_HWFC_DISABLED;
    ret                 = nrf_cli_init(&m_cli_uart, &uart_config, true, true, NRF_LOG_SEVERITY_INFO);
    APP_ERROR_CHECK(ret);
}


/**@brief Function for initializing logging.
 */
static void log_init(void)
{
    ret_code_t err_code = NRF_LOG_INIT(app_timer_cnt_get);

    APP_ERROR_CHECK(err_code);
}


/** @brief Function for configuring all peripherals used in this example.
 */
static void clock_init(void)
{
    // Start 64 MHz crystal oscillator.
    NRF_CLOCK->EVENTS_HFCLKSTARTED = 0;
    NRF_CLOCK->TASKS_HFCLKSTART    = 1;

    // Wait for the external oscillator to start up.
    while (NRF_CLOCK->EVENTS_HFCLKSTARTED == 0)
    {
        // Do nothing.
    }
}


/** @brief Function for the main application entry.
 */
int main(void)
{
    uint32_t err_code;

    log_init();

    err_code = nrf_drv_clock_init();
    APP_ERROR_CHECK(err_code);
    nrf_drv_clock_lfclk_request(NULL);

    err_code = app_timer_init();
    APP_ERROR_CHECK(err_code);

    clock_init();
    radio_cmd_init();

    cli_init();
    cli_start();

#if defined(NRF21540_DRIVER_ENABLE) && (NRF21540_DRIVER_ENABLE == 1)
    //Initialization of nRF21540 front-end Bluetooth® range extender chip. Do not use if your hardware doesn't support it.
    err_code = nrf21540_init();
    APP_ERROR_CHECK(err_code);
#endif

    NRF_LOG_RAW_INFO("Radio test example started.\r\n");

    while (true)
    {
#if defined(NRF21540_DRIVER_ENABLE) && (NRF21540_DRIVER_ENABLE == 1)
        if (nrf21540_is_error())
        {
          //do something in case of nRF21540 error
          while(1);
        }
#endif
        UNUSED_RETURN_VALUE(NRF_LOG_PROCESS());
        nrf_cli_process(&m_cli_uart);
    }
}


/** @} */