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nrf52 BLE UART example having many errors like "struct "<unnamed>" has no field "A0" "

Hi

I am working on nrf52 using BMD300 RIGADO board.I am trying to run BLE UART example of nrf SDK 11.0.0.But while I am running the code I am getting errors as

: struct "" has no field "A0"

: struct "" has no field "TEMP"

and so on total 34 errors.

Please help me to resolve this issue.

  • I very much doubt you get those errors running the code, you surely get them when you are compiling the code.

    What tools are you using, Kei, IAR, gcc, have you changed the examples. You need to put more details into your question as well as being more accurate about where you're seeing the errors.

  • Hi

    I am running the same sample code without any changes , which is provided in nrf52 SDK 11.0.0. I am running the code in IAR and getting the errors in system_nrf52.c file which is at location

    nRF5_SDK_11.0.0_89a8197 (1)\components\toolchain

  • Again, you do not run the code in IAR - that's where you build it!

    Any particular reason for using IAR? It is not Nordic's "preferred" toolchain, so the examples will need some adjustment ...

  • Hi ,

    Thanks for your reply. Actually we have IAR licence version, that is the reason i am trying to run on it. But as per your comment i tried running the same BLE UART example of SDK 11.0, on Keil. It is not giving error , but the issue is, while scanning on app, i am not getting any advertising information(not displaying device name).

    I am just running the BLE UART example without any changes on BMD 300 RIGADO evaluation board.

  • /* Copyright (c) 2014 Nordic Semiconductor. All Rights Reserved. * * The information contained herein is property of Nordic Semiconductor ASA. * Terms and conditions of usage are described in detail in NORDIC * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT. * * Licensees are granted free, non-transferable use of the information. NO * WARRANTY of ANY KIND is provided. This heading must NOT be removed from * the file. * */

    /** @file
     *
     * @defgroup ble_sdk_uart_over_ble_main main.c
     * @{
     * @ingroup  ble_sdk_app_nus_eval
     * @brief    UART over BLE application main file.
     *
     * This file contains the source code for a sample application that uses the Nordic UART service.
     * This application uses the @ref srvlib_conn_params module.
     */
    
    #include <stdint.h>
    #include <string.h>
    #include "nordic_common.h"
    #include "nrf.h"
    #include "ble_hci.h"
    #include "ble_advdata.h"
    #include "ble_advertising.h"
    #include "ble_conn_params.h"
    #include "softdevice_handler.h"
    #include "app_timer.h"
    #include "app_button.h"
    #include "ble_nus.h"
    #include "app_uart.h"
    #include "app_util_platform.h"
    #include "bsp.h"
    #include "bsp_btn_ble.h"
    
    #define IS_SRVC_CHANGED_CHARACT_PRESENT 0                                           /**< Include the service_changed characteristic. If not enabled, the server's database cannot be changed for the lifetime of the device. */
    
    #define CENTRAL_LINK_COUNT              0                                           /**< Number of central links used by the application. When changing this number remember to adjust the RAM settings*/
    #define PERIPHERAL_LINK_COUNT           1                                           /**< Number of peripheral links used by the application. When changing this number remember to adjust the RAM settings*/
    
    #define DEVICE_NAME                     "Nordic_UART"                               /**< Name of device. Will be included in the advertising data. */
    #define NUS_SERVICE_UUID_TYPE           BLE_UUID_TYPE_VENDOR_BEGIN                  /**< UUID type for the Nordic UART Service (vendor specific). */
    
    #define APP_ADV_INTERVAL                64                                          /**< The advertising interval (in units of 0.625 ms. This value corresponds to 40 ms). */
    #define APP_ADV_TIMEOUT_IN_SECONDS      180                                         /**< The advertising timeout (in units of seconds). */
    
    #define APP_TIMER_PRESCALER             0                                           /**< Value of the RTC1 PRESCALER register. */
    #define APP_TIMER_OP_QUEUE_SIZE         4                                           /**< Size of timer operation queues. */
    
    #define MIN_CONN_INTERVAL               MSEC_TO_UNITS(20, UNIT_1_25_MS)             /**< Minimum acceptable connection interval (20 ms), Connection interval uses 1.25 ms units. */
    #define MAX_CONN_INTERVAL               MSEC_TO_UNITS(75, UNIT_1_25_MS)             /**< Maximum acceptable connection interval (75 ms), Connection interval uses 1.25 ms units. */
    #define SLAVE_LATENCY                   0                                           /**< Slave latency. */
    #define CONN_SUP_TIMEOUT                MSEC_TO_UNITS(4000, UNIT_10_MS)             /**< Connection supervisory timeout (4 seconds), Supervision Timeout uses 10 ms units. */
    #define FIRST_CONN_PARAMS_UPDATE_DELAY  APP_TIMER_TICKS(5000, APP_TIMER_PRESCALER)  /**< Time from initiating event (connect or start of notification) to first time sd_ble_gap_conn_param_update is called (5 seconds). */
    #define NEXT_CONN_PARAMS_UPDATE_DELAY   APP_TIMER_TICKS(30000, APP_TIMER_PRESCALER) /**< Time between each call to sd_ble_gap_conn_param_update after the first call (30 seconds). */
    #define MAX_CONN_PARAMS_UPDATE_COUNT    3                                           /**< Number of attempts before giving up the connection parameter negotiation. */
    
    #define DEAD_BEEF                       0xDEADBEEF                                  /**< Value used as error code on stack dump, can be used to identify stack location on stack unwind. */
    
    #define UART_TX_BUF_SIZE                256                                         /**< UART TX buffer size. */
    #define UART_RX_BUF_SIZE                256                                         /**< UART RX buffer size. */
    
    static ble_nus_t                        m_nus;                                      /**< Structure to identify the Nordic UART Service. */
    static uint16_t                         m_conn_handle = BLE_CONN_HANDLE_INVALID;    /**< Handle of the current connection. */
    
    static ble_uuid_t                       m_adv_uuids[] = {{BLE_UUID_NUS_SERVICE, NUS_SERVICE_UUID_TYPE}};  /**< Universally unique service identifier. */
    
    
    /**@brief Function for assert macro callback.
     *
     * @details This function will be called in case of an assert in the SoftDevice.
     *
     * @warning This handler is an example only and does not fit a final product. You need to analyse 
     *          how your product is supposed to react in case of Assert.
     * @warning On assert from the SoftDevice, the system can only recover on reset.
     *
     * @param[in] line_num    Line number of the failing ASSERT call.
     * @param[in] p_file_name File name of the failing ASSERT call.
     */
    void assert_nrf_callback(uint16_t line_num, const uint8_t * p_file_name)
    {
    		app_error_handler(DEAD_BEEF, line_num, p_file_name);
    }
    
    
    /**@brief Function for the GAP initialization.
     *
     * @details This function will set up all the necessary GAP (Generic Access Profile) parameters of 
     *          the device. It also sets the permissions and appearance.
     */
    static void gap_params_init(void)
    {
    		uint32_t                err_code;
    		ble_gap_conn_params_t   gap_conn_params;
    		ble_gap_conn_sec_mode_t sec_mode;
    
    		BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode);
    		
    		err_code = sd_ble_gap_device_name_set(&sec_mode,
    																					(const uint8_t *) DEVICE_NAME,
    																					strlen(DEVICE_NAME));
    		APP_ERROR_CHECK(err_code);
    
    		memset(&gap_conn_params, 0, sizeof(gap_conn_params));
    
    		gap_conn_params.min_conn_interval = MIN_CONN_INTERVAL;
    		gap_conn_params.max_conn_interval = MAX_CONN_INTERVAL;
    		gap_conn_params.slave_latency     = SLAVE_LATENCY;
    		gap_conn_params.conn_sup_timeout  = CONN_SUP_TIMEOUT;
    
    		err_code = sd_ble_gap_ppcp_set(&gap_conn_params);
    		APP_ERROR_CHECK(err_code);
    }
    
    
    /**@brief Function for handling the data from the Nordic UART Service.
     *
     * @details This function will process the data received from the Nordic UART BLE Service and send
     *          it to the UART module.
     *
     * @param[in] p_nus    Nordic UART Service structure.
     * @param[in] p_data   Data to be send to UART module.
     * @param[in] length   Length of the data.
     */
    /**@snippet [Handling the data received over BLE] */
    static void nus_data_handler(ble_nus_t * p_nus, uint8_t * p_data, uint16_t length)
    {
    		for (uint32_t i = 0; i < length; i++)
    		{
    				while(app_uart_put(p_data[i]) != NRF_SUCCESS);
    		}
    		while(app_uart_put('\n') != NRF_SUCCESS);
    }
    /**@snippet [Handling the data received over BLE] */
    
    
    /**@brief Function for initializing services that will be used by the application.
     */
    static void services_init(void)
    {
    		uint32_t       err_code;
    		ble_nus_init_t nus_init;
    		
    		memset(&nus_init, 0, sizeof(nus_init));
    
    		nus_init.data_handler = nus_data_handler;
    		
    		err_code = ble_nus_init(&m_nus, &nus_init);
    		APP_ERROR_CHECK(err_code);
    }
    
    
    /**@brief Function for handling an event from the Connection Parameters Module.
     *
     * @details This function will be called for all events in the Connection Parameters Module
     *          which are passed to the application.
     *
     * @note All this function does is to disconnect. This could have been done by simply setting
     *       the disconnect_on_fail config parameter, but instead we use the event handler
     *       mechanism to demonstrate its use.
     *
     * @param[in] p_evt  Event received from the Connection Parameters Module.
     */
    static void on_conn_params_evt(ble_conn_params_evt_t * p_evt)
    {
    		uint32_t err_code;
    		
    		if(p_evt->evt_type == BLE_CONN_PARAMS_EVT_FAILED)
    		{
    				err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_CONN_INTERVAL_UNACCEPTABLE);
    				APP_ERROR_CHECK(err_code);
    		}
    }
    
    
    /**@brief Function for handling errors from the Connection Parameters module.
     *
     * @param[in] nrf_error  Error code containing information about what went wrong.
     */
    static void conn_params_error_handler(uint32_t nrf_error)
    {
    		APP_ERROR_HANDLER(nrf_error);
    }
    
    
    /**@brief Function for initializing the Connection Parameters module.
     */
    static void conn_params_init(void)
    {
    		uint32_t               err_code;
    		ble_conn_params_init_t cp_init;
    		
    		memset(&cp_init, 0, sizeof(cp_init));
    
    		cp_init.p_conn_params                  = NULL;
    		cp_init.first_conn_params_update_delay = FIRST_CONN_PARAMS_UPDATE_DELAY;
    		cp_init.next_conn_params_update_delay  = NEXT_CONN_PARAMS_UPDATE_DELAY;
    		cp_init.max_conn_params_update_count   = MAX_CONN_PARAMS_UPDATE_COUNT;
    		cp_init.start_on_notify_cccd_handle    = BLE_GATT_HANDLE_INVALID;
    		cp_init.disconnect_on_fail             = false;
    		cp_init.evt_handler                    = on_conn_params_evt;
    		cp_init.error_handler                  = conn_params_error_handler;
    		
    		err_code = ble_conn_params_init(&cp_init);
    		APP_ERROR_CHECK(err_code);
    }
    
    
    /**@brief Function for putting the chip into sleep mode.
     *
     * @note This function will not return.
     */
    static void sleep_mode_enter(void)
    {
    		uint32_t err_code = bsp_indication_set(BSP_INDICATE_IDLE);
    		APP_ERROR_CHECK(err_code);
    
    		// Prepare wakeup buttons.
    		err_code = bsp_btn_ble_sleep_mode_prepare();
    		APP_ERROR_CHECK(err_code);
    
    		// Go to system-off mode (this function will not return; wakeup will cause a reset).
    		err_code = sd_power_system_off();
    		APP_ERROR_CHECK(err_code);
    }
    
    
    /**@brief Function for handling advertising events.
     *
     * @details This function will be called for advertising events which are passed to the application.
     *
     * @param[in] ble_adv_evt  Advertising event.
     */
    static void on_adv_evt(ble_adv_evt_t ble_adv_evt)
    {
    		uint32_t err_code;
    
    		switch (ble_adv_evt)
    		{
    				case BLE_ADV_EVT_FAST:
    						err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING);
    						APP_ERROR_CHECK(err_code);
    						break;
    				case BLE_ADV_EVT_IDLE:
    						sleep_mode_enter();
    						break;
    				default:
    						break;
    		}
    }
    
    
    /**@brief Function for the application's SoftDevice event handler.
     *
     * @param[in] p_ble_evt SoftDevice event.
     */
    static void on_ble_evt(ble_evt_t * p_ble_evt)
    {
    		uint32_t                         err_code;
    		
    		switch (p_ble_evt->header.evt_id)
    		{
    				case BLE_GAP_EVT_CONNECTED:
    						err_code = bsp_indication_set(BSP_INDICATE_CONNECTED);
    						APP_ERROR_CHECK(err_code);
    						m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
    						break;
    						
    				case BLE_GAP_EVT_DISCONNECTED:
    						err_code = bsp_indication_set(BSP_INDICATE_IDLE);
    						APP_ERROR_CHECK(err_code);
    						m_conn_handle = BLE_CONN_HANDLE_INVALID;
    						break;
    
    				case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
    						// Pairing not supported
    						err_code = sd_ble_gap_sec_params_reply(m_conn_handle, BLE_GAP_SEC_STATUS_PAIRING_NOT_SUPP, NULL, NULL);
    						APP_ERROR_CHECK(err_code);
    						break;
    
    				case BLE_GATTS_EVT_SYS_ATTR_MISSING:
    						// No system attributes have been stored.
    						err_code = sd_ble_gatts_sys_attr_set(m_conn_handle, NULL, 0, 0);
    						APP_ERROR_CHECK(err_code);
    						break;
    
    				default:
    						// No implementation needed.
    						break;
    		}
    }
    
    
    /**@brief Function for dispatching a SoftDevice event to all modules with a SoftDevice 
     *        event handler.
     *
     * @details This function is called from the SoftDevice event interrupt handler after a 
     *          SoftDevice event has been received.
     *
     * @param[in] p_ble_evt  SoftDevice event.
     */
    static void ble_evt_dispatch(ble_evt_t * p_ble_evt)
    {
    		ble_conn_params_on_ble_evt(p_ble_evt);
    		ble_nus_on_ble_evt(&m_nus, p_ble_evt);
    		on_ble_evt(p_ble_evt);
    		ble_advertising_on_ble_evt(p_ble_evt);
    		bsp_btn_ble_on_ble_evt(p_ble_evt);
    		
    }
    
    
    /**@brief Function for the SoftDevice initialization.
     *
     * @details This function initializes the SoftDevice and the BLE event interrupt.
     */
    static void ble_stack_init(void)
    {
    		uint32_t err_code;
    		
    		nrf_clock_lf_cfg_t clock_lf_cfg = NRF_CLOCK_LFCLKSRC;
    		
    		// Initialize SoftDevice.
    		SOFTDEVICE_HANDLER_INIT(&clock_lf_cfg, NULL);
    		
    		ble_enable_params_t ble_enable_params;
    		err_code = softdevice_enable_get_default_config(CENTRAL_LINK_COUNT,
    																										PERIPHERAL_LINK_COUNT,
    																										&ble_enable_params);
    		APP_ERROR_CHECK(err_code);
    				
    		//Check the ram settings against the used number of links
    		CHECK_RAM_START_ADDR(CENTRAL_LINK_COUNT,PERIPHERAL_LINK_COUNT);
    		// Enable BLE stack.
    		err_code = softdevice_enable(&ble_enable_params);
    		APP_ERROR_CHECK(err_code);
    		
    		// Subscribe for BLE events.
    		err_code = softdevice_ble_evt_handler_set(ble_evt_dispatch);
    		APP_ERROR_CHECK(err_code);
    }
    
    
    /**@brief Function for handling events from the BSP module.
     *
     * @param[in]   event   Event generated by button press.
     */
    void bsp_event_handler(bsp_event_t event)
    {
    		uint32_t err_code;
    		switch (event)
    		{
    				case BSP_EVENT_SLEEP:
    						sleep_mode_enter();
    						break;
    
    				case BSP_EVENT_DISCONNECT:
    						err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
    						if (err_code != NRF_ERROR_INVALID_STATE)
    						{
    								APP_ERROR_CHECK(err_code);
    						}
    						break;
    
    				case BSP_EVENT_WHITELIST_OFF:
    						err_code = ble_advertising_restart_without_whitelist();
    						if (err_code != NRF_ERROR_INVALID_STATE)
    						{
    								APP_ERROR_CHECK(err_code);
    						}
    						break;
    
    				default:
    						break;
    		}
    }
    
    
    /**@brief   Function for handling app_uart events.
     *
     * @details This function will receive a single character from the app_uart module and append it to 
     *          a string. The string will be be sent over BLE when the last character received was a 
     *          'new line' i.e '\n' (hex 0x0D) or if the string has reached a length of 
     *          @ref NUS_MAX_DATA_LENGTH.
     */
    /**@snippet [Handling the data received over UART] */
    void uart_event_handle(app_uart_evt_t * p_event)
    {
    		static uint8_t data_array[BLE_NUS_MAX_DATA_LEN];
    		static uint8_t index = 0;
    		uint32_t       err_code;
    
    		switch (p_event->evt_type)
    		{
    				case APP_UART_DATA_READY:
    						UNUSED_VARIABLE(app_uart_get(&data_array[index]));
    						index++;
    
    						if ((data_array[index - 1] == '\n') || (index >= (BLE_NUS_MAX_DATA_LEN)))
    						{
    								err_code = ble_nus_string_send(&m_nus, data_array, index);
    								if (err_code != NRF_ERROR_INVALID_STATE)
    								{
    										APP_ERROR_CHECK(err_code);
    								}
    								
    								index = 0;
    						}
    						break;
    
    				case APP_UART_COMMUNICATION_ERROR:
    						APP_ERROR_HANDLER(p_event->data.error_communication);
    						break;
    
    				case APP_UART_FIFO_ERROR:
    						APP_ERROR_HANDLER(p_event->data.error_code);
    						break;
    
    				default:
    						break;
    		}
    }
    /**@snippet [Handling the data received over UART] */
    
    
    /**@brief  Function for initializing the UART module.
     */
    /**@snippet [UART Initialization] */
    static void uart_init(void)
    {
    		uint32_t                     err_code;
    		const app_uart_comm_params_t comm_params =
    		{
    				RX_PIN_NUMBER,
    				TX_PIN_NUMBER,
    				RTS_PIN_NUMBER,
    				CTS_PIN_NUMBER,
    				APP_UART_FLOW_CONTROL_ENABLED,
    				false,
    				UART_BAUDRATE_BAUDRATE_Baud115200
    		};
    
    		APP_UART_FIFO_INIT( &comm_params,
    											 UART_RX_BUF_SIZE,
    											 UART_TX_BUF_SIZE,
    											 uart_event_handle,
    											 APP_IRQ_PRIORITY_LOW,
    											 err_code);
    		APP_ERROR_CHECK(err_code);
    }
    /**@snippet [UART Initialization] */
    
    
    /**@brief Function for initializing the Advertising functionality.
     */
    static void advertising_init(void)
    {
    		uint32_t      err_code;
    		ble_advdata_t advdata;
    		ble_advdata_t scanrsp;
    
    		// Build advertising data struct to pass into @ref ble_advertising_init.
    		memset(&advdata, 0, sizeof(advdata));
    		advdata.name_type          = BLE_ADVDATA_FULL_NAME;
    		advdata.include_appearance = false;
    		advdata.flags              = BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE;
    
    		memset(&scanrsp, 0, sizeof(scanrsp));
    		scanrsp.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
    		scanrsp.uuids_complete.p_uuids  = m_adv_uuids;
    
    		ble_adv_modes_config_t options = {0};
    		options.ble_adv_fast_enabled  = BLE_ADV_FAST_ENABLED;
    		options.ble_adv_fast_interval = APP_ADV_INTERVAL;
    		options.ble_adv_fast_timeout  = APP_ADV_TIMEOUT_IN_SECONDS;
    
    		err_code = ble_advertising_init(&advdata, &scanrsp, &options, on_adv_evt, NULL);
    		APP_ERROR_CHECK(err_code);
    }
    
    
    /**@brief Function for initializing buttons and leds.
     *
     * @param[out] p_erase_bonds  Will be true if the clear bonding button was pressed to wake the application up.
     */
    static void buttons_leds_init(bool * p_erase_bonds)
    {
    		bsp_event_t startup_event;
    
    		uint32_t err_code = bsp_init(BSP_INIT_LED | BSP_INIT_BUTTONS,
    																 APP_TIMER_TICKS(100, APP_TIMER_PRESCALER), 
    																 bsp_event_handler);
    		APP_ERROR_CHECK(err_code);
    
    		err_code = bsp_btn_ble_init(NULL, &startup_event);
    		APP_ERROR_CHECK(err_code);
    
    		*p_erase_bonds = (startup_event == BSP_EVENT_CLEAR_BONDING_DATA);
    }
    
    
    /**@brief Function for placing the application in low power state while waiting for events.
     */
    static void power_manage(void)
    {
    		uint32_t err_code = sd_app_evt_wait();
    		APP_ERROR_CHECK(err_code);
    }
    
    
    /**@brief Application main function.
     */
    int main(void)
    {
    		uint32_t err_code;
    		bool erase_bonds;
    
    		// Initialize.
    		APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_OP_QUEUE_SIZE, false);
    		uart_init();
    		
    		buttons_leds_init(&erase_bonds);
    		ble_stack_init();
    		gap_params_init();
    		services_init();
    		advertising_init();
    		conn_params_init();
    
    		printf("\r\nUART Start!\r\n");
    		err_code = ble_advertising_start(BLE_ADV_MODE_FAST);
    		APP_ERROR_CHECK(err_code);
    		
    		// Enter main loop.
    		for (;;)
    		{
    				power_manage();
    		}
    }
    
    
    /** 
     * @}
     */
    
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