Hi I am working on nRF 52832 and nrf 52840 dongle. I want UART service to be used in my application and application should allow me to scan peripheral devices with user command via Command Line Interface(Putty).
I am trying to merge ble_app_uart and Ble_app_interactive example codes with some modification.
Please suggest me the best way to do it...
are you sure you need to merge them? it appear the ble cli app already has the ble_nus service provide. do you know what feature the ble cli app is missing that you need. I would say that should be the first step. Identify what you are missing.
Hi thanks for the reply. But how can I prove that it is using Nordic uart service ? Because when I check the ble_app_interactive application it doesn't use ble_nus_c file or functions.
How can I show that the code has this feature implemented ?
Please provide me solution
sorry I might have looked at the wrong application. My suggestion would be to start with the ble_app_interactive and simply add the ble_nus service client into that solution.
you can follow the way the ble_bas_c client is included in the solution.
basically add all of your files needs (libs, drivers) then your include paths. next step would be to start from the top and work your way down.
BLE_NUS_C_DEF(m_ble_nus_c);
static uint16_t m_ble_nus_max_data_len = BLE_GATT_ATT_MTU_DEFAULT - OPCODE_LENGTH - HANDLE_LENGTH; /**< Maximum length of data (in bytes) that can be transmitted to the peer by the Nordic UART service module. */
static ble_uuid_t const m_nus_uuid
static void ble_nus_chars_received_uart_print(uint8_t * p_data, uint16_t data_len)
static void ble_nus_c_evt_handler(ble_nus_c_t * p_ble_nus_c, ble_nus_c_evt_t const * p_ble_nus_evt)
static void nus_c_init(void)
the above are only a snippet of the function or variable you need to fully copy into your code. The above was taken from ble_app_uart_c.
Add all files, includes then work your way down initializing the service and the service handlers.
sorry I might have looked at the wrong application. My suggestion would be to start with the ble_app_interactive and simply add the ble_nus service client into that solution.
you can follow the way the ble_bas_c client is included in the solution.
basically add all of your files needs (libs, drivers) then your include paths. next step would be to start from the top and work your way down.
BLE_NUS_C_DEF(m_ble_nus_c);
static uint16_t m_ble_nus_max_data_len = BLE_GATT_ATT_MTU_DEFAULT - OPCODE_LENGTH - HANDLE_LENGTH; /**< Maximum length of data (in bytes) that can be transmitted to the peer by the Nordic UART service module. */
static ble_uuid_t const m_nus_uuid
static void ble_nus_chars_received_uart_print(uint8_t * p_data, uint16_t data_len)
static void ble_nus_c_evt_handler(ble_nus_c_t * p_ble_nus_c, ble_nus_c_evt_t const * p_ble_nus_evt)
static void nus_c_init(void)
the above are only a snippet of the function or variable you need to fully copy into your code. The above was taken from ble_app_uart_c.
Add all files, includes then work your way down initializing the service and the service handlers.
Yeah I have added these functions to code.thank you for the details it helped me.
/**
* Copyright (c) 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.
*
*/
/**@brief BLE interactive app example application main file.
*
* @detail This application demonstrates how to control a BLE connection using the command line interface.
*
* @note This application requires the use of an external ECC library
* for public key and shared secret calculation.
* Refer to the application's documentation for more details.
*
*/
#include "sdk_config.h"
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <stdbool.h>
#include <stddef.h>
#include <ctype.h>
#include "nordic_common.h"
#include "app_timer.h"
#include "nrf_pwr_mgmt.h"
#include "nrf_cli.h"
#include "nrf_cli_uart.h"
#include "nrf_cli_rtt.h"
#include "boards.h"
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"
#include "nrf_ble_lesc.h"
#include "ble_m.h"
#include "cli_m.h"
#include "pm_m.h"
#include "nfc_m.h"
#include "nfc_central_m.h"
#define FOUND_DEVICE_REFRESH_TIME APP_TIMER_TICKS(SCAN_LIST_REFRESH_INTERVAL) /**< Time after which the device list is clean and refreshed. */
/**@brief Command line interface instance.
*/
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_LOG_QUEUE_SIZE);
/**@brief Function for starting a command line interface working on the UART transport layer.
*/
static void cli_uart_start(void)
{
ret_code_t ret;
ret = nrf_cli_start(&m_cli_uart);
APP_ERROR_CHECK(ret);
}
#if NRF_MODULE_ENABLED(CLI_RTT)
NRF_CLI_RTT_DEF(m_cli_rtt_transport);
NRF_CLI_DEF(m_cli_rtt, "rtt_cli:~$ ", &m_cli_rtt_transport.transport, '\n', CLI_LOG_QUEUE_SIZE);
/**@brief Function for starting a command line interface working on the RTT transport layer.
*/
static void cli_rtt_start(void)
{
ret_code_t ret;
ret = nrf_cli_init(&m_cli_rtt, NULL, true, true, NRF_LOG_SEVERITY_INFO);
APP_ERROR_CHECK(ret);
ret = nrf_cli_start(&m_cli_rtt);
APP_ERROR_CHECK(ret);
}
#endif // CLI_RTT
/**@brief Function for configuring UART for CLI.
*/
static void cli_uart_cfg(void)
{
ret_code_t err_code;
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;
err_code = nrf_cli_init(&m_cli_uart, &uart_config, true, true, NRF_LOG_SEVERITY_INFO);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling the adv_list_timer event, which refreshes the connectable devices.
*/
static void adv_list_timer_handle(void * p_context)
{
if (is_scanning())
{
connect_addr_clear();
scan_device_info_clear();
}
}
/**@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 initializing the timer.
*/
static void timer_init(void)
{
ret_code_t err_code = app_timer_init();
APP_ERROR_CHECK(err_code);
// Timer for refreshing scanned devices data.
APP_TIMER_DEF(adv_list_timer);
err_code = app_timer_create(&adv_list_timer, APP_TIMER_MODE_REPEATED, adv_list_timer_handle);
APP_ERROR_CHECK(err_code);
err_code = app_timer_start(adv_list_timer, FOUND_DEVICE_REFRESH_TIME, NULL);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing power management.
*/
static void power_management_init(void)
{
ret_code_t err_code;
err_code = nrf_pwr_mgmt_init();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling the idle state (main loop).
*
* @details If there is no pending log operation, then sleep until next the next event occurs.
*/
static void idle_state_handler(void)
{
nrf_cli_process(&m_cli_uart);
#if NRF_MODULE_ENABLED(CLI_RTT)
nrf_cli_process(&m_cli_rtt);
#endif // CLI_RTT
if (NRF_LOG_PROCESS() == false)
{
nrf_pwr_mgmt_run();
}
}
int main(void)
{
power_management_init();
log_init();
timer_init();
// Console start
cli_uart_cfg();
cli_uart_start();
#if NRF_MODULE_ENABLED(CLI_RTT)
cli_rtt_start();
#endif // CLI_RTT
ble_m_init();
NRF_LOG_RAW_INFO("BLE application started.\r\n");
NRF_LOG_RAW_INFO("Press Tab to view all available commands.\r\n");
for (;;)
{
idle_state_handler();
}
}
HI these are the files where i modified for merging ble_app_uart into ble_app_interactive. No errors and there is no output also.
Please check and let me now the comments.
/**
* Copyright (c) 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.
*
*/
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include "ble_m.h"
#include "cli_m.h"
#include "bsp_btn_ble.h"
#include "ble_nus_c.h" //Rk added for NUS
#include "ble.h"
#include "app_util.h"
#include "ble_advdata.h"
#include "ble_advertising.h"
#include "ble_conn_params.h"
#include "ble_conn_state.h"
#include "nrf_log.h"
#include "ble_advertising.h"
#include "ble_hci.h"
#include "nrf_sdh.h"
#include "nrf_sdh_soc.h"
#include "nrf_sdh_ble.h"
#include "nrf_ble_gatt.h"
#include "nrf_balloc.h"
#include "nfc_central_m.h"
//#include "nfc_ble_oob_advdata_parser.h"
#include "nrf_ble_scan.h"
#define APP_BLE_CONN_CFG_TAG 1 /**< Tag that identifies the SoftDevice BLE configuration. */
#define CENTRAL_SCANNING_LED BSP_BOARD_LED_0
#define CENTRAL_CONNECTED_LED BSP_BOARD_LED_1
#define PERIPHERAL_ADVERTISING_LED BSP_BOARD_LED_2
#define PERIPHERAL_CONNECTED_LED BSP_BOARD_LED_3
#define FIRST_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(5000) /**< Time from initiating an event (connect or start of notification) to the first time sd_ble_gap_conn_param_update is called (5 seconds). */
#define NEXT_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(30000) /**< Time between each call to sd_ble_gap_conn_param_update after the first call (30 seconds). */
#define MAX_CONN_PARAMS_UPDATE_COUNT 3 /**< Max count of connection parameter update. */
#define APP_ADV_DURATION 18000 /**< The advertising duration (180 seconds) in units of 10 milliseconds. */
#define APP_FEATURE_NOT_SUPPORTED BLE_GATT_STATUS_ATTERR_APP_BEGIN + 2 /**< Reply when unsupported features are requested. */
#define CCCD_DESCRIPTOR_UUID BLE_UUID_DESCRIPTOR_CLIENT_CHAR_CONFIG /**< UUID of characteristic CCCD descriptors. */
#define L2CAP_HDR_LEN 4 /**< Length of a L2CAP header, in bytes. */
#define BATTERY_INITIAL_LVL 100 /**< Battery initial level. */
#define UUID_STRING_LEN 5 /**< UUID uint16_t string length. */
/**@brief Priority of the application BLE event handler.
* @note There is no need to modify this value.
*/
#define APP_BLE_OBSERVER_PRIO 1
NRF_BLE_GATT_DEF(m_gatt); /**< GATT module instance. */
BLE_ADVERTISING_DEF(m_advertising); /**< Advertising module instance. */
NRF_BLE_SCAN_DEF(m_scan); /**< Scanning Module instance. */
// Structure storing data of all discovered services.
typedef struct
{
ble_gattc_service_t services[MAX_SERVICE_COUNT]; /**< Data of the services found. */
uint8_t count; /**< Count of the services found. */
} device_srv_t;
typedef struct
{
ble_uuid_t uuid; /**< UUID of the characteristic. */
uint16_t decl_handle; /**< Handle of the characteristic declaration. */
uint16_t value_handle; /**< Handle of the characteristic value. */
uint16_t cccd_desc_handle; /**< Handle of the CCCD descriptors. */
bool notify; /**< True when notification of the value permitted. */
} char_data_t;
// Structure storing the data of all discovered characteristics.
typedef struct
{
char_data_t char_data[MAX_CHARACTERISTIC_COUNT]; /**< Characteristics data. */
uint8_t count; /**< Characteristics count. */
} srv_char_t;
scanned_device_t m_device[DEVICE_TO_FIND_MAX]; /**< Stores device info from scan data. */
char m_addr_str_for_connection[ADDR_STRING_LEN]; /**< Stores device address as string for establishing a connection. */
srv_char_t m_srv_char; /**< Stores all the characteristics data from one service to allow further operations. */
uint16_t m_desc_handle; /**< The CCCD descriptor handle found. */
device_srv_t * mp_device_srv[NRF_BLE_LINK_COUNT]; /**< Pointers to the allocated memory needed to discover the services on the server. */
static bool m_numeric_match_requested = false; /**< Numeric match request. */
static uint16_t m_num_comp_conn_handle; /**< Numeric comparison connection handle. */
static conn_peer_t m_connected_peers[NRF_BLE_LINK_COUNT]; /**< Connected devices data. */
bool m_scanning = false; /**< Variable that informs about the ongoing scanning. True when scan is ON. */
bool m_vendor_uuid_read = false; /**< Variable that informs about the read request for a 128-bit service UUID. */
uint8_t m_uuid_attr_handle;
NRF_BALLOC_DEF(m_srv_pool, sizeof(device_srv_t), NRF_BLE_LINK_COUNT);
/**@brief UUIDs that the central application scans for if the name above is set to an empty string,
* and that are advertised by the peripherals.
*/
//RK modified for NUS service
ble_uuid_t m_adv_uuids[] = { { BLE_UUID_NUS_SERVICE, BLE_UUID_TYPE_BLE } }; //RK commened
static char * mp_roles_str[] =
{
"INVALID_ROLE",
"CENTRAL",
"PERIPHERAL",
};
/**@brief Connection parameters requested for connection.
*/
static ble_gap_conn_params_t const m_connection_param =
{
MIN_CONNECTION_INTERVAL,
MAX_CONNECTION_INTERVAL,
SLAVE_LATENCY,
SUPERVISION_TIMEOUT
};
/**@brief Function for handling asserts in the SoftDevice.
*
* @details This function is called in case of an assert in the SoftDevice.
*
* @warning This handler is an example only and is not meant for the final product. You need to analyze
* how your product is supposed to react in case of an 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)
{
ASSERT(p_file_name);
app_error_handler(0xDEADBEEF, line_num, p_file_name);
}
/**@brief Function for handling errors from the Connection Parameters module.
*
* @param[in] nrf_error Error code that contains information about what went wrong.
*/
static void conn_params_error_handler(uint32_t nrf_error)
{
APP_ERROR_HANDLER(nrf_error);
}
bool is_scanning(void)
{
return m_scanning;
}
void addr_store_value_set(char const * const p_address_str)
{
ASSERT(p_address_str);
strcpy(m_addr_str_for_connection, p_address_str);
}
scanned_device_t * scan_device_info_get(void)
{
return m_device;
}
void scan_device_info_clear(void)
{
memset(m_device, 0, sizeof(m_device));
}
bool is_numeric_match_requested(void)
{
return m_numeric_match_requested;
}
void numeric_match_request_clear(void)
{
m_numeric_match_requested = false;
}
uint16_t numeric_match_request_conn_handle_get(void)
{
return m_num_comp_conn_handle;
}
void preferred_phy_set(ble_gap_phys_t const * const p_phy, uint16_t conn_handle)
{
ASSERT(p_phy);
ret_code_t err_code;
err_code = sd_ble_gap_phy_update(conn_handle, p_phy);
APP_ERROR_CHECK(err_code);
}
uint16_t cccd_descriptors_handle_get(char const * const p_char_uuid_str)
{
ASSERT(p_char_uuid_str);
char uuid_str[UUID_STRING_LEN] = {0};
// Searching for characteristic.
for (uint8_t i = 0; i < m_srv_char.count; i++)
{
sprintf(uuid_str, "%X", m_srv_char.char_data[i].uuid.uuid);
if ((!strcmp(uuid_str, p_char_uuid_str)) && m_srv_char.char_data[i].notify)
{
return m_srv_char.char_data[i].cccd_desc_handle;
}
}
return BLE_GATT_HANDLE_INVALID;
}
/**@brief Function for searching for the CCCD of a characteristic.
*
* @param[in] char_uuid UUID of the characteristic.
* @param[in] conn_handle The connection handle that identifies the connection to perform this procedure on.
*/
static void cccd_descriptors_search(uint16_t char_uuid, uint16_t conn_handle)
{
uint8_t i;
ret_code_t err_code;
ble_gattc_handle_range_t handle_range;
uint16_t start_handle = 0;
uint16_t end_handle = 0;
// Searching for the handle of the initial characteristic.
for (i = 0; i < m_srv_char.count; i++)
{
if (m_srv_char.char_data[i].uuid.uuid == char_uuid)
{
start_handle = m_srv_char.char_data[i].value_handle + 1;
break;
}
}
// Searching for the handle of the final characteristic if the characteristic is not the last one in the service.
if ((i < (m_srv_char.count - 1)) && (m_srv_char.char_data[i + 1].uuid.uuid != 0))
{
// If the characteristic is not the last one, start a handle equal to the declaration handle of the next characteristic's declaration handle.
end_handle = m_srv_char.char_data[i + 1].decl_handle - 1;
}
// Searching for the handle of the final characteristic. If the characteristic is the last one in the service, the end handle is equal to the service end handle.
else
{
for (uint8_t j = 0; j < mp_device_srv[conn_handle]->count; j++)
{
if ((start_handle >
mp_device_srv[conn_handle]->services[j].handle_range.start_handle) &&
(start_handle < mp_device_srv[conn_handle]->services[j].handle_range.end_handle))
{
end_handle = mp_device_srv[conn_handle]->services[j].handle_range.end_handle;
break;
}
}
}
handle_range.start_handle = start_handle;
handle_range.end_handle = end_handle;
// Discovery descriptors inside, the found handle range.
err_code = sd_ble_gattc_descriptors_discover(conn_handle, &handle_range);
APP_ERROR_CHECK(err_code);
}
uint16_t handle_value_search(char const * const p_service_uuid_str)
{
ASSERT(p_service_uuid_str);
char buffer[UUID_STRING_LEN] = {0};
for (uint8_t i = 0; i < m_srv_char.count; i++)
{
sprintf(buffer, "%X", m_srv_char.char_data[i].uuid.uuid);
if (!strcmp(buffer, p_service_uuid_str))
{
return m_srv_char.char_data[i].value_handle;
}
}
return BLE_GATT_HANDLE_INVALID;
}
ble_gattc_handle_range_t * handle_range_search(char const * const p_service_uuid_str,
uint16_t conn_handle)
{
ASSERT(p_service_uuid_str);
char buffer[UUID_STRING_LEN] = {0};
for (uint8_t i = 0; i < mp_device_srv[conn_handle]->count; i++)
{
sprintf(buffer, "%X", mp_device_srv[conn_handle]->services[i].uuid.uuid);
if (!strcmp(buffer, p_service_uuid_str))
{
return &mp_device_srv[conn_handle]->services[i].handle_range;
}
}
return NULL;
}
void link_layer_data_length_set(char * p_data_length, uint16_t conn_handle)
{
ASSERT(p_data_length);
ret_code_t err_code;
uint8_t value;
uint16_t mtu;
// Get actual MTU.
mtu = nrf_ble_gatt_eff_mtu_get(&m_gatt, conn_handle);
value = atoi(p_data_length);
// Check that new data length has a correct value.
if ((value > (mtu + L2CAP_HDR_LEN)) || (value < (BLE_GATT_ATT_MTU_DEFAULT + L2CAP_HDR_LEN)))
{
NRF_LOG_RAW_INFO("Data Length value must be less than %d and bigger than %d\r\n",
(mtu + L2CAP_HDR_LEN),
(BLE_GATT_ATT_MTU_DEFAULT + L2CAP_HDR_LEN));
return;
}
// Set data length.
err_code = nrf_ble_gatt_data_length_set(&m_gatt, conn_handle, value);
APP_ERROR_CHECK(err_code);
}
void gatt_mtu_set(char const * const p_mtu_value)
{
ASSERT(p_mtu_value);
ret_code_t err_code;
uint16_t mtu_val;
mtu_val = atoi(p_mtu_value);
// Checking the new MTU value.
if ((mtu_val < BLE_GATT_ATT_MTU_DEFAULT) ||
(mtu_val > NRF_SDH_BLE_GATT_MAX_MTU_SIZE))
{
NRF_LOG_RAW_INFO("%s %d - %d \r\n",
"MTU value must be between",
BLE_GATT_ATT_MTU_DEFAULT,
NRF_SDH_BLE_GATT_MAX_MTU_SIZE);
return;
}
// New maxiumum MTU must be set before a connection is established.
err_code = nrf_ble_gatt_att_mtu_central_set(&m_gatt, mtu_val);
APP_ERROR_CHECK(err_code);
err_code = nrf_ble_gatt_att_mtu_periph_set(&m_gatt, mtu_val);
APP_ERROR_CHECK(err_code);
NRF_LOG_RAW_INFO("MTU will be changed for next connection. Processing MTU change.\r\n");
}
char const * phy_str(ble_gap_phys_t const * const p_phys)
{
ASSERT(p_phys);
static char const * p_str[] =
{
"1 Mbps",
"2 Mbps",
"Coded",
"Unknown"
};
switch (p_phys->tx_phys)
{
case BLE_GAP_PHY_1MBPS:
return p_str[0];
case BLE_GAP_PHY_2MBPS:
case (BLE_GAP_PHY_2MBPS | BLE_GAP_PHY_1MBPS):
case (BLE_GAP_PHY_2MBPS | BLE_GAP_PHY_1MBPS | BLE_GAP_PHY_CODED):
return p_str[1];
case BLE_GAP_PHY_CODED:
return p_str[2];
default:
return p_str[3];
}
}
void int_addr_to_hex_str(char * p_result, uint8_t result_len, uint8_t const * const p_addr)
{
ASSERT(p_result);
ASSERT(p_addr);
if (result_len > BLE_GAP_ADDR_LEN)
{
return;
}
char buffer[BLE_GAP_ADDR_LEN] = {0};
memset(p_result, 0, result_len);
for (uint8_t i = 0; i < result_len; ++i)
{
sprintf(buffer, "%.2X", p_addr[result_len - (i + 1)]);
strcat(p_result, buffer);
if (i < (result_len - 1))
{
strcat(p_result, ":");
}
}
}
/**@brief Function for printing the UUID for each service.
*
* @param[in] conn_handle The connection handle identifying the connection to perform this procedure on.
* @param[in] service_p Pointer to ble_gattc_service_t.
*/
static void uuid_print(uint16_t conn_handle, ble_gattc_service_t const * p_service)
{
NRF_LOG_RAW_INFO("Found service UUIDs: \r\n");
for (uint8_t i = 0; i < mp_device_srv[conn_handle]->count; i++)
{
NRF_LOG_RAW_INFO("%s: %X %s: 0x%X\r\n",
"UUID",
p_service[i].uuid.uuid,
"type",
p_service[i].uuid.type);
}
}
bool is_address_compare(ble_gap_addr_t const * const p_connected_addr, char const * const p_addr)
{
ASSERT(p_connected_addr);
ASSERT(p_addr);
char string_addr_buf[ADDR_STRING_LEN] = {0};
int_addr_to_hex_str(string_addr_buf,
BLE_GAP_ADDR_LEN,
p_connected_addr->addr);
return (memcmp(string_addr_buf, p_addr, sizeof(string_addr_buf))) ? false : true;
}
uint16_t addr_string_to_conn_handle(char const * const p_addr)
{
ASSERT(p_addr);
uint16_t conn_handle = 0;
uint8_t idx;
for (idx = 0; idx < NRF_BLE_LINK_COUNT; idx++)
{
if (is_address_compare(&m_connected_peers[idx].address, p_addr))
{
conn_handle = idx;
return conn_handle;
}
}
return BLE_CONN_HANDLE_INVALID;
}
/**@brief Function for searching for a device name and adding it to a dynamic command.
*
* @details Use this function to parse the received advertising data and to find a given
* name in them either as 'complete_local_name' or as 'short_local_name'.
*
* @param[in] p_adv_report Advertising data to parse.
*/
static void device_to_list_add(ble_gap_evt_adv_report_t const * p_adv_report)
{
uint8_t idx = 0;
uint16_t dev_name_offset = 0;
uint16_t field_len;
data_t adv_data;
// Initialize advertisement report for parsing
adv_data.p_data = (uint8_t *)p_adv_report->data.p_data;
adv_data.data_len = p_adv_report->data.len;
for ( idx = 0; idx < DEVICE_TO_FIND_MAX; idx++)
{
// If address is duplicated, then return.
if (memcmp(p_adv_report->peer_addr.addr,
m_device[idx].addr,
sizeof(p_adv_report->peer_addr.addr)) == 0)
{
return;
}
}
// Add device data if an empty record is found.
for (idx = 0; idx < DEVICE_TO_FIND_MAX; idx++)
{
if (!m_device[idx].is_not_empty)
{
memcpy(m_device[idx].addr,
p_adv_report->peer_addr.addr,
sizeof(p_adv_report->peer_addr.addr));
//RK test rssi store rssi value @device instance m_device
memcpy(&m_device[idx].RSSI_value_RK, &p_adv_report->rssi, sizeof(p_adv_report->rssi));
//RK test rssi end
m_device[idx].is_not_empty = true;
// Search for advertising names.
field_len = ble_advdata_search(adv_data.p_data,
adv_data.data_len,
&dev_name_offset,
BLE_GAP_AD_TYPE_COMPLETE_LOCAL_NAME);
if (field_len == 0)
{
field_len = ble_advdata_search(adv_data.p_data,
adv_data.data_len,
&dev_name_offset,
BLE_GAP_AD_TYPE_SHORT_LOCAL_NAME);
// If name is not found, then return.
if (field_len == 0)
{
return;
}
}
memcpy(m_device[idx].dev_name, &adv_data.p_data[dev_name_offset], field_len);
m_device[idx].dev_name[field_len] = 0;
return;
}
}
}
/**@brief Function for displaying an address in HEX format.
*/
static void hex_addr_display(uint8_t const * p_addr, size_t size)
{
NRF_LOG_RAW_INFO("Connected to address: ");
for (uint8_t i = 0; i < size; ++i)
{
NRF_LOG_RAW_INFO("%.2X ", p_addr[size - (i + 1)]);
}
NRF_LOG_RAW_INFO("\r\n");
}
void private_connect(pm_peer_id_t const * p_peers_id)
{
ASSERT(p_peers_id);
ret_code_t err_code;
ble_gap_addr_t public_addr;
memset(&public_addr, 0, sizeof(public_addr));
pm_peer_data_bonding_t data;
memset(&data, 0, sizeof(data));
// Load device bonding data.
err_code = pm_peer_data_bonding_load(*p_peers_id, &data);
if (err_code != NRF_SUCCESS)
{
NRF_LOG_INFO("Try again with correct peer ID.");
return;
}
memcpy(&public_addr,
&data.peer_ble_id.id_addr_info,
sizeof(public_addr));
// Stop scanning.
scan_stop();
// Set device identities list.
err_code = pm_device_identities_list_set(p_peers_id, 1);
APP_ERROR_CHECK(err_code);
scan_start();
// Connect with device using privacy by public address.
err_code = sd_ble_gap_connect(&public_addr, &m_scan.scan_params,
&m_connection_param,
APP_BLE_CONN_CFG_TAG);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling primary service discovery response.
*
* @details This function will handle the primary service discovery response.
*
* @param[in] p_ble_gattc_evt Pointer to the GATT Client event.
*/
static void on_primary_srv_discovery_rsp(ble_gattc_evt_t const * p_ble_gattc_evt)
{
uint16_t count;
uint16_t bytes_to_copy;
uint16_t conn_handle;
static uint16_t offset = 0;
ret_code_t err_code;
// For readability.
ble_gattc_evt_prim_srvc_disc_rsp_t const * p_prim_serv =
&(p_ble_gattc_evt->params.prim_srvc_disc_rsp);
conn_handle = p_ble_gattc_evt->conn_handle;
ble_gattc_service_t * const p_service =
mp_device_srv[conn_handle]->services;
// Number of discovered services.
count = p_prim_serv->count;
// If no more services are found.
if ((count != 0) &&
(p_ble_gattc_evt->gatt_status == BLE_GATT_STATUS_SUCCESS))
{
if ((count + offset) > MAX_SERVICE_COUNT)
{
bytes_to_copy = MAX_SERVICE_COUNT - offset;
}
else
{
bytes_to_copy = count;
}
// Save services data.
memcpy((p_service + offset),
p_prim_serv->services,
bytes_to_copy * sizeof(ble_gattc_service_t));
offset += count;
// If the last service has not been reached, this function must be called again with a new start handle.
err_code = sd_ble_gattc_primary_services_discover(
conn_handle,
p_prim_serv->services[count - 1].handle_range.end_handle + 1,
NULL);
APP_ERROR_CHECK(err_code);
}
else
{
mp_device_srv[conn_handle]->count = offset;
// If service UUID type is unknown, then look for a 128-bit UUID.
// Only the first one is searched for here, the rest is searched for in the @ref on_read_rsp.
for (uint8_t i = 0; i < offset; i++)
{
if (p_service[i].uuid.type == BLE_UUID_TYPE_UNKNOWN)
{
m_vendor_uuid_read = true;
// Read service 128-bit UUID.
err_code = sd_ble_gattc_read(conn_handle, p_service[i].handle_range.start_handle, 0);
APP_ERROR_CHECK(err_code);
offset = 0;
return;
}
}
NRF_LOG_INFO("Services count: %d", offset);
uuid_print(p_ble_gattc_evt->conn_handle, p_service);
offset = 0;
}
}
/**@brief Function for starting a discovery of CCCD descriptors.
*
* @details If characteristics can be notified, then look for CCCD descriptors in all
* characteristics inside the service.
*
* @param[in] p_ble_gattc_evt
*/
static void cccd_descriptors_discovery(ble_gattc_evt_t const * p_ble_gattc_evt)
{
for (uint8_t i = 0; i < m_srv_char.count; i++)
{
// If it is possible to enable notification.
if (m_srv_char.char_data[i].notify)
{
// Search for CCCD descriptor handle
cccd_descriptors_search(m_srv_char.char_data[i].uuid.uuid, p_ble_gattc_evt->conn_handle);
}
}
}
/**@brief Function for handling a characteristic discovery response.
*
* @param[in] p_ble_gattc_evt Pointer to the GATT Client event.
*/
static void on_characteristics_discovery_rsp(ble_gattc_evt_t const * p_ble_gattc_evt)
{
uint16_t count;
static uint16_t offset = 0;;
uint16_t bytes_to_copy;
ret_code_t err_code;
uint16_t conn_handle = p_ble_gattc_evt->conn_handle;
// For readability.
count = p_ble_gattc_evt->params.char_disc_rsp.count;
ble_gattc_evt_char_disc_rsp_t const * p_char_disc_rsp_evt;
p_char_disc_rsp_evt = &(p_ble_gattc_evt->params.char_disc_rsp);
if (p_ble_gattc_evt->gatt_status == BLE_GATT_STATUS_SUCCESS)
{
if ((count + offset) > MAX_CHARACTERISTIC_COUNT)
{
bytes_to_copy = MAX_CHARACTERISTIC_COUNT - offset;
NRF_LOG_RAW_INFO("Too many characteristics discovered\r\n");
}
else
{
bytes_to_copy = count;
}
// Save characteristics data.
for (uint8_t i = offset; i < bytes_to_copy; i++)
{
m_srv_char.char_data[i].decl_handle = p_char_disc_rsp_evt->chars[i].handle_decl;
m_srv_char.char_data[i].value_handle = p_char_disc_rsp_evt->chars[i].handle_value;
m_srv_char.char_data[i].uuid = p_char_disc_rsp_evt->chars[i].uuid;
m_srv_char.char_data[i].notify = p_char_disc_rsp_evt->chars[i].char_props.notify;
m_srv_char.char_data[i].cccd_desc_handle = 0;
offset++;
}
// Display characteristics data.
for (uint8_t i = 0; i < offset; i++)
{
ble_gatt_char_props_t char_param =
p_ble_gattc_evt->params.char_disc_rsp.chars[i].char_props;
NRF_LOG_RAW_INFO("Characteristic UUID: %X\r\n",
p_ble_gattc_evt->params.char_disc_rsp.chars[i].uuid.uuid);
NRF_LOG_RAW_INFO("Parameters:\r\n");
NRF_LOG_RAW_INFO("broadcast: %d ", char_param.broadcast);
NRF_LOG_RAW_INFO("read: %d ", char_param.read);
NRF_LOG_RAW_INFO("write_wo_resp: %d ", char_param.write_wo_resp);
NRF_LOG_RAW_INFO("write: %d ", char_param.write);
NRF_LOG_RAW_INFO("notify: %d\r\n", char_param.notify);
NRF_LOG_RAW_INFO("indicate: %d ", char_param.indicate);
NRF_LOG_RAW_INFO("auth_signed_wr: %d\r\n", char_param.auth_signed_wr);
}
}
// If the last characteristic has not been reached, look for a new handle range.
ble_gattc_handle_range_t handle_range;
handle_range.start_handle = m_srv_char.char_data[offset - 1].value_handle + 1;
// Search for end handle.
for (uint8_t j = 0; j < mp_device_srv[conn_handle]->count; j++)
{
if (handle_range.start_handle >
mp_device_srv[conn_handle]->services[j].handle_range.start_handle)
{
handle_range.end_handle =
mp_device_srv[conn_handle]->services[j].handle_range.end_handle;
break;
}
}
// Handle value of the characteristic being discovered is less than the end handle of
// the service being discovered. There is no possibility of more characteristics being
// present.
if ((m_srv_char.char_data[offset - 1].value_handle >= handle_range.end_handle) ||
(offset == MAX_CHARACTERISTIC_COUNT) ||
(p_ble_gattc_evt->gatt_status != BLE_GATT_STATUS_SUCCESS))
{
NRF_LOG_RAW_INFO("Number of characteristics: %d\r\n", offset);
m_srv_char.count = offset;
offset = 0;
// Search for the CCCD descriptors.
cccd_descriptors_discovery(p_ble_gattc_evt);
return;
}
// If the last Characteristic has not been reached, this function must be called again with new handle range.
err_code = sd_ble_gattc_characteristics_discover(p_ble_gattc_evt->conn_handle, &handle_range);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling descriptor discovery response.
*
* @param[in] p_ble_gattc_evt Pointer to the GATT Client event.
*/
static void on_descriptor_discovery_rsp(const ble_gattc_evt_t * const p_ble_gattc_evt)
{
uint16_t count;
uint16_t conn_handle = p_ble_gattc_evt->conn_handle;
ret_code_t err_code;
count = p_ble_gattc_evt->params.desc_disc_rsp.count;
// If no more descriptors are found.
if (count == 0)
{
NRF_LOG_RAW_INFO("No descriptors for characteristic, ",
"notifications and indications not possible\r\n");
return;
}
if (p_ble_gattc_evt->gatt_status != BLE_GATT_STATUS_SUCCESS)
{
return;
}
// If the descriptor was found, connect it to the characteristic.
for (uint8_t i = 0; i < count; i++)
{
if (p_ble_gattc_evt->params.desc_disc_rsp.descs[i].uuid.uuid == CCCD_DESCRIPTOR_UUID)
{
for (uint8_t j = 0; j < m_srv_char.count; j++)
{
if (m_srv_char.char_data[j].cccd_desc_handle == 0 && m_srv_char.char_data[j].notify)
{
m_srv_char.char_data[j].cccd_desc_handle =
p_ble_gattc_evt->params.desc_disc_rsp.descs[i].handle;
}
}
return;
}
}
// If the last descriptors have not been found, look for a new handle range to search for.
ble_gattc_handle_range_t handle_range;
memset(&handle_range, 0, sizeof(handle_range));
handle_range.start_handle = p_ble_gattc_evt->params.desc_disc_rsp.descs[count - 1].handle + 1;
for (uint8_t i = 0; i < m_srv_char.count; i++)
{
// Search for end handle, to descriptors searching.
if ((handle_range.start_handle >= m_srv_char.char_data[i].value_handle) &&
(i < (m_srv_char.count - 1)))
{
// If current characteristic is not last in service
handle_range.end_handle = m_srv_char.char_data[i + 1].decl_handle - 1;
break;
}
// If the characteristic is last into service, search for service end handle.
if (i == (m_srv_char.count - 1))
{
for (uint8_t j = 0; j < mp_device_srv[conn_handle]->count; j++)
{
if ((handle_range.start_handle >
mp_device_srv[conn_handle]->services[j].handle_range.start_handle) &&
(handle_range.start_handle <
mp_device_srv[conn_handle]->services[j].handle_range.end_handle))
{
handle_range.end_handle =
mp_device_srv[conn_handle]->services[j].handle_range.end_handle;
break;
}
}
}
}
// If the last descriptors have not been reached, this function must be called again with a new handle range.
err_code = sd_ble_gattc_descriptors_discover(conn_handle, &handle_range);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling a read response.
*
* @param[in] p_ble_gattc_evt Pointer to the GATT Client event.
*/
static void on_read_rsp(const ble_gattc_evt_t * const p_ble_gattc_evt)
{
ret_code_t err_code;
uint16_t conn_handle = p_ble_gattc_evt->conn_handle;
ble_uuid128_t uuid;
const ble_gattc_evt_read_rsp_t * p_read_rsp = &(p_ble_gattc_evt->params.read_rsp);
if (m_vendor_uuid_read)
{
for (uint8_t i = 0; i < mp_device_srv[conn_handle]->count; i++)
{
if (p_read_rsp->handle ==
mp_device_srv[conn_handle]->services[i].handle_range.start_handle)
{
//lint -save -e420
memcpy(uuid.uuid128, p_read_rsp->data, sizeof(uuid.uuid128));
//lint -restore
err_code = sd_ble_uuid_vs_add(&uuid, &mp_device_srv[conn_handle]->services[i].uuid.type);
APP_ERROR_CHECK(err_code);
break;
}
}
// If service UUID type is unknown, then try to search for the 128-bit UUID.
for (uint8_t i = 0; i < mp_device_srv[conn_handle]->count; i++)
{
if (mp_device_srv[conn_handle]->services[i].uuid.type == BLE_UUID_TYPE_UNKNOWN)
{
m_vendor_uuid_read = true;
// Look for service 128-bit UUID.
err_code = sd_ble_gattc_read(conn_handle, mp_device_srv[conn_handle]->services[i].handle_range.start_handle, 0);
APP_ERROR_CHECK(err_code);
return;
}
// If service is last.
if (i == (mp_device_srv[conn_handle]->count - 1))
{
NRF_LOG_INFO("Services count: %d", mp_device_srv[conn_handle]->count);
m_vendor_uuid_read = false;
// Print services UUID. When you first discover services, the 128-bit UUIDs may not be displayed.
// In such case, you should rediscover the services.
uuid_print(p_ble_gattc_evt->conn_handle, mp_device_srv[conn_handle]->services);
}
}
return;
}
NRF_LOG_RAW_INFO("Read data:\r\n");
for (uint8_t i = 0; i < p_read_rsp->len; i++)
{
NRF_LOG_RAW_INFO("0x%X ", p_read_rsp->data[i]);
}
NRF_LOG_RAW_INFO("\r\n");
// The application only supports reading data of length less than MTU which was set for this connection.
}
/**@brief Function for handling a write response.
*
* @param[in] p_ble_gattc_evt Pointer to the GATT Client event.
*/
static void on_write_rsp(const ble_gattc_evt_t * const p_ble_gattc_evt)
{
// For readability.
const ble_gattc_evt_write_rsp_t * p_write_rsp = &(p_ble_gattc_evt->params.write_rsp);
// Display gattc write status.
NRF_LOG_RAW_INFO("Type of write operation: 0x%x\r\n", p_write_rsp->write_op);
NRF_LOG_RAW_INFO("Data was written to the server \r\n");
for (uint8_t i = 0; i < p_write_rsp->len; i++)
{
NRF_LOG_RAW_INFO("%d ", p_write_rsp->data[i]);
}
if (p_write_rsp->len > 0)
{
NRF_LOG_RAW_INFO("\r\n");
}
}
static void on_ble_evt(uint16_t conn_handle, ble_evt_t const * p_ble_evt)
{
ret_code_t err_code;
char passkey[BLE_GAP_PASSKEY_LEN + 1];
uint16_t role = ble_conn_state_role(conn_handle);
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
{
// Store device data to dynamic command buffer and for futher operations.
m_connected_peers[conn_handle].address =
p_ble_evt->evt.gap_evt.params.connected.peer_addr;
connected_to_cmd_add(m_connected_peers, conn_handle);
// Display device address.
hex_addr_display(p_ble_evt->evt.gap_evt.params.connected.peer_addr.addr,
BLE_GAP_ADDR_LEN);
// Allocation memory for services data.
mp_device_srv[conn_handle] = (device_srv_t *)nrf_balloc_alloc(&m_srv_pool);
}
break;
case BLE_GAP_EVT_DISCONNECTED:
// Clearing device data.
connected_to_cmd_remove(m_connected_peers, conn_handle);
memset(&m_connected_peers[conn_handle], 0x00, sizeof(m_connected_peers[0]));
// Release of allocated memory.
nrf_balloc_free(&m_srv_pool, mp_device_srv[conn_handle]);
break;
case BLE_GAP_EVT_PASSKEY_DISPLAY:
memcpy(passkey,
p_ble_evt->evt.gap_evt.params.passkey_display.passkey,
BLE_GAP_PASSKEY_LEN);
passkey[BLE_GAP_PASSKEY_LEN] = 0x00;
NRF_LOG_INFO("%s: BLE_GAP_EVT_PASSKEY_DISPLAY: passkey=%s match_req=%d",
nrf_log_push(mp_roles_str[role]),
nrf_log_push(passkey),
p_ble_evt->evt.gap_evt.params.passkey_display.match_request);
if (p_ble_evt->evt.gap_evt.params.passkey_display.match_request)
{
NRF_LOG_INFO("Type /numeric accept/ to confirm, /numeric reject/ to reject");
m_num_comp_conn_handle = conn_handle;
m_numeric_match_requested = true;
}
break;
case BLE_GAP_EVT_AUTH_KEY_REQUEST:
key_request_set();
NRF_LOG_DEBUG("%s: BLE_GAP_EVT_AUTH_KEY_REQUEST", nrf_log_push(mp_roles_str[role]));
break;
case BLE_GAP_EVT_LESC_DHKEY_REQUEST:
NRF_LOG_DEBUG("%s: BLE_GAP_EVT_LESC_DHKEY_REQUEST", nrf_log_push(mp_roles_str[role]));
break;
case BLE_GAP_EVT_AUTH_STATUS:
NRF_LOG_INFO(
"%s: BLE_GAP_EVT_AUTH_STATUS: status=0x%x bond=0x%x lv4: %d",
nrf_log_push(mp_roles_str[role]),
p_ble_evt->evt.gap_evt.params.auth_status.auth_status,
p_ble_evt->evt.gap_evt.params.auth_status.bonded,
p_ble_evt->evt.gap_evt.params.auth_status.sm1_levels.lv4);
NRF_LOG_DEBUG("kdist_own:0x%x kdist_peer:0x%x",
*( (uint8_t *)&p_ble_evt->evt.gap_evt.params.auth_status.kdist_own),
*( (uint8_t *)&p_ble_evt->evt.gap_evt.params.auth_status.kdist_peer));
break;
case BLE_GAP_EVT_PHY_UPDATE_REQUEST:
{
ble_gap_evt_t const * p_gap_evt = &p_ble_evt->evt.gap_evt;
NRF_LOG_RAW_INFO("PHY update request\r\n");
ble_gap_phys_t phy_param =
{
.rx_phys = BLE_GAP_PHY_AUTO,
.tx_phys = BLE_GAP_PHY_AUTO,
};
err_code = sd_ble_gap_phy_update(p_gap_evt->conn_handle, &phy_param);
APP_ERROR_CHECK(err_code);
}
break;
case BLE_GATTC_EVT_PRIM_SRVC_DISC_RSP:
{
on_primary_srv_discovery_rsp(&(p_ble_evt->evt.gattc_evt));
}
break;
case BLE_GATTC_EVT_CHAR_DISC_RSP:
{
on_characteristics_discovery_rsp(&(p_ble_evt->evt.gattc_evt));
}
break;
case BLE_GATTC_EVT_DESC_DISC_RSP:
{
on_descriptor_discovery_rsp(&(p_ble_evt->evt.gattc_evt));
}
break;
case BLE_GATTC_EVT_READ_RSP:
{
on_read_rsp(&(p_ble_evt->evt.gattc_evt));
}
break;
case BLE_GATTC_EVT_WRITE_RSP:
{
on_write_rsp(&(p_ble_evt->evt.gattc_evt));
}
break;
case BLE_GATTC_EVT_HVX:
{
// If server sends an indication, then send a Handle Value Confirmation to the GATT Server.
if (p_ble_evt->evt.gattc_evt.params.hvx.type == BLE_GATT_HVX_INDICATION)
{
err_code = sd_ble_gattc_hv_confirm(p_ble_evt->evt.gattc_evt.conn_handle,
p_ble_evt->evt.gattc_evt.params.hvx.handle);
APP_ERROR_CHECK(err_code);
}
uint8_t data_len = p_ble_evt->evt.gattc_evt.params.hvx.len;
NRF_LOG_RAW_INFO(
"%s data: ",
(p_ble_evt->evt.gattc_evt.params.hvx.type !=
BLE_GATT_HVX_NOTIFICATION) ? "Indication" : "Notification");
// Display notifications or indication data.
for (uint8_t i = 0; i < data_len; i++)
{
NRF_LOG_RAW_INFO("%d ", p_ble_evt->evt.gattc_evt.params.hvx.data[i]);
}
NRF_LOG_RAW_INFO("\r\n");
}
break;
default:
// No implementation needed.
break;
}
}
/**@brief Function for handling BLE Stack events that concern the central application.
*
* @details This function keeps the connection handles of the central application up-to-date. It
* parses scanning reports, initiating a connection attempt to peripherals,
* and manages connection parameter update requests. Additionally, it updates the status
* of LEDs used to report the central application's activity.
*
* @note Since this function updates the connection handles, @ref BLE_GAP_EVT_DISCONNECTED events
* should be dispatched to the target application before invoking this function.
*
* @param[in] p_ble_evt Bluetooth stack event.
*/
static void on_ble_central_evt(ble_evt_t const * p_ble_evt)
{
ret_code_t err_code;
// For readability
ble_gap_evt_t const * p_gap_evt = &p_ble_evt->evt.gap_evt;
switch (p_ble_evt->header.evt_id)
{
// Upon connection, update LEDs status.
case BLE_GAP_EVT_CONNECTED:
{
NRF_LOG_INFO("CENTRAL: Connected, handle: %d.", p_gap_evt->conn_handle);
memset(m_addr_str_for_connection, 0, sizeof(m_addr_str_for_connection));
//RK added for NUS
err_code = ble_nus_c_handles_assign(&m_ble_nus_c, p_ble_evt->evt.gap_evt.conn_handle, NULL);
APP_ERROR_CHECK(err_code);
err_code = bsp_indication_set(BSP_INDICATE_CONNECTED);
APP_ERROR_CHECK(err_code);
// start discovery of services. The NUS Client waits for a discovery result
err_code = ble_db_discovery_start(&m_db_disc, p_ble_evt->evt.gap_evt.conn_handle);
APP_ERROR_CHECK(err_code);
//End RK
// Update LEDs status.
bsp_board_led_off(CENTRAL_SCANNING_LED);
bsp_board_led_on(CENTRAL_CONNECTED_LED);
}
break; // BLE_GAP_EVT_CONNECTED
// Upon disconnection, reset the connection handle of the peer which disconnected, update
// the LEDs status.
case BLE_GAP_EVT_DISCONNECTED:
{
NRF_LOG_INFO("CENTRAL: Disconnected, handle: %d, reason: 0x%x",
p_gap_evt->conn_handle,
p_gap_evt->params.disconnected.reason);
// Update LEDs status.
bsp_board_led_off(CENTRAL_CONNECTED_LED);
}
break; // BLE_GAP_EVT_DISCONNECTED
case BLE_GAP_EVT_ADV_REPORT:
{
if (is_address_compare(&p_gap_evt->params.adv_report.peer_addr,
m_addr_str_for_connection))
{
memset(m_addr_str_for_connection, 0, sizeof(m_addr_str_for_connection));
// Initiate connection.
NRF_LOG_INFO("CENTRAL: Connecting...");
err_code = sd_ble_gap_connect(&p_gap_evt->params.adv_report.peer_addr,
&m_scan.scan_params,
&m_connection_param,
APP_BLE_CONN_CFG_TAG);
if (err_code != NRF_SUCCESS)
{
NRF_LOG_DEBUG("Connection Request Failed, reason %d", err_code);
return;
}
}
// Add device address and name (if exists) from the scan report to dynamic CLI command.
//RK test rssi
// uint16_t m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle; // RK test rssi
// sd_ble_gap_rssi_start(m_conn_handle, 0, 0);
// sd_ble_gap_rssi_stop(m_conn_handle);
//RK test rssi end
device_to_list_add(&p_gap_evt->params.adv_report); //No modification -RK test rssi add to event (included in this call)
address_to_cmd_add(&p_gap_evt->params.adv_report.peer_addr);
}
break; // BLE_GAP_ADV_REPORT
case BLE_GAP_EVT_TIMEOUT:
{
// Time-out for scanning has not been specified, so only connection attemps can time out.
if (p_gap_evt->params.timeout.src == BLE_GAP_TIMEOUT_SRC_CONN)
{
NRF_LOG_DEBUG("CENTRAL: Connection Request timed out.");
}
}
break;
case BLE_GAP_EVT_CONN_PARAM_UPDATE:
{
NRF_LOG_RAW_INFO("Connection parameters update success\r\n");
}
break;
case BLE_GAP_EVT_CONN_PARAM_UPDATE_REQUEST:
{
// Accept parameters requested by the peer.
err_code = sd_ble_gap_conn_param_update(
p_gap_evt->conn_handle,
&p_gap_evt->params.conn_param_update_request.
conn_params);
APP_ERROR_CHECK(err_code);
}
break;
case BLE_GATTC_EVT_TIMEOUT:
// Disconnect on GATT Client time-out event.
NRF_LOG_DEBUG("CENTRAL: GATT Client Time-out.");
err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gattc_evt.conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
APP_ERROR_CHECK(err_code);
break;
case BLE_GATTS_EVT_TIMEOUT:
// Disconnect on GATT Server time-out event.
NRF_LOG_DEBUG("CENTRAL: GATT Server Time-out.");
err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gatts_evt.conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
APP_ERROR_CHECK(err_code);
break;
case BLE_GATTC_EVT_EXCHANGE_MTU_RSP:
NRF_LOG_RAW_INFO("Current MTU: %d\r\n",
p_ble_evt->evt.gattc_evt.params.exchange_mtu_rsp.server_rx_mtu);
break;
case BLE_GAP_EVT_PHY_UPDATE:
{
ble_gap_evt_phy_update_t const * p_phy_evt = &p_ble_evt->evt.gap_evt.params.phy_update;
if (p_phy_evt->status == BLE_HCI_STATUS_CODE_LMP_ERROR_TRANSACTION_COLLISION)
{
// Ignore LL collisions.
NRF_LOG_DEBUG("LL transaction collision during PHY update.");
break;
}
ble_gap_phys_t phys = { 0 };
phys.tx_phys = p_phy_evt->tx_phy;
phys.rx_phys = p_phy_evt->rx_phy;
NRF_LOG_INFO("PHY update %s. PHY set to %s.",
(p_phy_evt->status == BLE_HCI_STATUS_CODE_SUCCESS) ?
"accepted" : "rejected",
phy_str(&phys));
}
break;
//RK Added for NUS
case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
// Pairing not supported.
err_code = sd_ble_gap_sec_params_reply(p_ble_evt->evt.gap_evt.conn_handle, BLE_GAP_SEC_STATUS_PAIRING_NOT_SUPP, NULL, NULL);
APP_ERROR_CHECK(err_code);
break;
case BLE_GAP_EVT_PHY_UPDATE_REQUEST:
{
NRF_LOG_DEBUG("PHY update request.");
ble_gap_phys_t const phys =
{
.rx_phys = BLE_GAP_PHY_AUTO,
.tx_phys = BLE_GAP_PHY_AUTO,
};
err_code = sd_ble_gap_phy_update(p_ble_evt->evt.gap_evt.conn_handle, &phys);
APP_ERROR_CHECK(err_code);
} break;
//Rk End NUS
default:
// No implementation needed.
break;
}
}
/**@brief Function for handling BLE Stack events involving peripheral applications. Manages the
* LEDs used to report the status of the peripheral applications.
*
* @param[in] p_ble_evt Bluetooth stack event.
*/
static void on_ble_peripheral_evt(ble_evt_t const * p_ble_evt)
{
ret_code_t err_code;
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
NRF_LOG_INFO("PERIPHERAL: Connected, handle %d.", p_ble_evt->evt.gap_evt.conn_handle);
bsp_board_led_off(PERIPHERAL_ADVERTISING_LED);
bsp_board_led_on(PERIPHERAL_CONNECTED_LED);
break;
case BLE_GAP_EVT_DISCONNECTED:
NRF_LOG_INFO("PERIPHERAL: Disconnected, handle %d, reason 0x%x.",
p_ble_evt->evt.gap_evt.conn_handle,
p_ble_evt->evt.gap_evt.params.disconnected.reason);
bsp_board_led_off(PERIPHERAL_CONNECTED_LED);
break;
case BLE_GATTC_EVT_TIMEOUT:
// Disconnect on GATT Client time-out event.
NRF_LOG_DEBUG("PERIPHERAL: GATT Client Time-out.");
err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gattc_evt.conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
APP_ERROR_CHECK(err_code);
break;
case BLE_GATTS_EVT_TIMEOUT:
// Disconnect on GATT Server time-out event.
NRF_LOG_DEBUG("PERIPHERAL: GATT Server Time-out.");
err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gatts_evt.conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
APP_ERROR_CHECK(err_code);
break;
case BLE_EVT_USER_MEM_REQUEST:
err_code = sd_ble_user_mem_reply(p_ble_evt->evt.gap_evt.conn_handle, NULL);
APP_ERROR_CHECK(err_code);
break;
case BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST:
{
ble_gatts_evt_rw_authorize_request_t req;
ble_gatts_rw_authorize_reply_params_t auth_reply;
req = p_ble_evt->evt.gatts_evt.params.authorize_request;
if (req.type != BLE_GATTS_AUTHORIZE_TYPE_INVALID)
{
if ((req.request.write.op == BLE_GATTS_OP_PREP_WRITE_REQ) ||
(req.request.write.op == BLE_GATTS_OP_EXEC_WRITE_REQ_NOW) ||
(req.request.write.op == BLE_GATTS_OP_EXEC_WRITE_REQ_CANCEL))
{
if (req.type == BLE_GATTS_AUTHORIZE_TYPE_WRITE)
{
auth_reply.type = BLE_GATTS_AUTHORIZE_TYPE_WRITE;
}
else
{
auth_reply.type = BLE_GATTS_AUTHORIZE_TYPE_READ;
}
auth_reply.params.write.gatt_status = APP_FEATURE_NOT_SUPPORTED;
err_code = sd_ble_gatts_rw_authorize_reply(
p_ble_evt->evt.gatts_evt.conn_handle,
&auth_reply);
APP_ERROR_CHECK(err_code);
}
}
}
break; // BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST
case BLE_GAP_EVT_PHY_UPDATE:
{
ble_gap_evt_phy_update_t const * p_phy_evt = &p_ble_evt->evt.gap_evt.params.phy_update;
if (p_phy_evt->status == BLE_HCI_STATUS_CODE_LMP_ERROR_TRANSACTION_COLLISION)
{
// Ignore LL collisions.
NRF_LOG_INFO("LL transaction collision during PHY update.");
break;
}
ble_gap_phys_t phys = {0};
phys.tx_phys = p_phy_evt->tx_phy;
phys.rx_phys = p_phy_evt->rx_phy;
NRF_LOG_INFO("PHY update %s. PHY set to %s.",
(p_phy_evt->status == BLE_HCI_STATUS_CODE_SUCCESS) ?
"accepted" : "rejected",
phy_str(&phys));
}
break;
default:
// No implementation needed.
break;
}
}
/**@brief Function for handling advertising events.
*
* @param[in] ble_adv_evt Advertising event.
*/
static inline void on_adv_evt(ble_adv_evt_t ble_adv_evt)
{
switch (ble_adv_evt)
{
case BLE_ADV_EVT_FAST:
bsp_board_led_on(PERIPHERAL_ADVERTISING_LED);
break;
default:
// No implementation needed.
break;
}
}
/**@brief Function for handling BLE events.
*
* @param[in] p_ble_evt Bluetooth stack event.
* @param[in] p_context Unused.
*/
static void ble_evt_handler(ble_evt_t const * p_ble_evt, void * p_context)
{
uint16_t conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
uint16_t role = ble_conn_state_role(conn_handle);
on_ble_evt(conn_handle, p_ble_evt);
if (role == BLE_GAP_ROLE_PERIPH)
{
// Manages peripheral LEDs.
on_ble_peripheral_evt(p_ble_evt);
}
else if ((role == BLE_GAP_ROLE_CENTRAL) ||
(p_ble_evt->header.evt_id == BLE_GAP_EVT_ADV_REPORT))
{
on_ble_central_evt(p_ble_evt);
}
else
{
}
}
/**@brief Function for initiating scanning.
*/
void scan_start(void)
{
ret_code_t err_code;
m_scan.scan_params.timeout = 0x0000; // No timeout.
NRF_LOG_INFO("Starting scan.");
err_code = nrf_ble_scan_start(&m_scan);
APP_ERROR_CHECK(err_code);
bsp_board_led_on(CENTRAL_SCANNING_LED);
NRF_LOG_INFO("Scanning");
m_scanning = true;
}
/**@brief Function for stopping scanning.
*/
void scan_stop(void)
{
nrf_ble_scan_stop();
bsp_board_led_off(CENTRAL_SCANNING_LED);
m_scanning = false;
}
/**@brief Function for initializing the BLE stack.
*
* @details Initializes the SoftDevice and the BLE event interrupts.
*/
static void ble_stack_init(void)
{
ret_code_t err_code;
err_code = nrf_sdh_enable_request();
APP_ERROR_CHECK(err_code);
// Configure the BLE stack using the default settings.
// Fetch the start address of the application RAM.
uint32_t ram_start = 0;
err_code = nrf_sdh_ble_default_cfg_set(APP_BLE_CONN_CFG_TAG, &ram_start);
APP_ERROR_CHECK(err_code);
// Enable BLE stack.
err_code = nrf_sdh_ble_enable(&ram_start);
APP_ERROR_CHECK(err_code);
// Register a handler for BLE events.
NRF_SDH_BLE_OBSERVER(m_ble_observer, APP_BLE_OBSERVER_PRIO, ble_evt_handler, NULL);
}
/**@brief Function for the GAP initialization.
*
* @details This function sets up all the necessary GAP (Generic Access Profile) parameters of the
* device including the device name, appearance, and the preferred connection parameters.
*/
static void gap_params_init(void)
{
ret_code_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_CONNECTION_INTERVAL;
gap_conn_params.max_conn_interval = MAX_CONNECTION_INTERVAL;
gap_conn_params.slave_latency = SLAVE_LATENCY;
gap_conn_params.conn_sup_timeout = SUPERVISION_TIMEOUT;
err_code = sd_ble_gap_ppcp_set(&gap_conn_params);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling BLE stack GATT events.
*/
static void gatt_evt_handler(nrf_ble_gatt_t * p_gatt, nrf_ble_gatt_evt_t const * p_evt)
{
switch (p_evt->evt_id)
{
case NRF_BLE_GATT_EVT_ATT_MTU_UPDATED:
NRF_LOG_RAW_INFO("MTU changed successfully\r\n");
//Rk added for NUS
m_ble_nus_max_data_len = p_evt->params.att_mtu_effective - OPCODE_LENGTH - HANDLE_LENGTH;
NRF_LOG_INFO("Ble NUS max data length set to 0x%X(%d)", m_ble_nus_max_data_len, m_ble_nus_max_data_len);
//RK end NUS
break;
case NRF_BLE_GATT_EVT_DATA_LENGTH_UPDATED:
NRF_LOG_INFO("Data length updated to %u bytes.", p_evt->params.data_length);
break;
default:
break;
}
}
/**@brief Function for initializing the GATT module.
*/
static inline void gatt_init(void)
{
ret_code_t err_code = nrf_ble_gatt_init(&m_gatt, gatt_evt_handler);
APP_ERROR_CHECK(err_code);
//RK added for NUS
err_code = nrf_ble_gatt_att_mtu_central_set(&m_gatt, NRF_SDH_BLE_GATT_MAX_MTU_SIZE);
APP_ERROR_CHECK(err_code);
//RK end
}
/**@brief Function for handling 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)
{
ret_code_t err_code;
uint16_t conn_handle = p_evt->conn_handle;
if (p_evt->evt_type == BLE_CONN_PARAMS_EVT_FAILED)
{
err_code = sd_ble_gap_disconnect(conn_handle, BLE_HCI_CONN_INTERVAL_UNACCEPTABLE);
APP_ERROR_CHECK(err_code);
}
}
/**@brief Function for initializing the Connection Parameters module.
*/
static void conn_params_init(void)
{
ret_code_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_CONN_HANDLE_INVALID; // Start upon connection.
cp_init.disconnect_on_fail = true;
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);
}
void advertising_init(void)
{
ret_code_t err_code;
ble_advertising_init_t init;
memset(&init, 0, sizeof(init));
init.advdata.name_type = BLE_ADVDATA_FULL_NAME;
init.advdata.include_appearance = true;
init.advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;
init.advdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
init.advdata.uuids_complete.p_uuids = m_adv_uuids;
init.config.ble_adv_fast_enabled = true;
init.config.ble_adv_fast_interval = ADV_INTERVAL;
init.config.ble_adv_fast_timeout = APP_ADV_DURATION;
init.evt_handler = on_adv_evt;
err_code = ble_advertising_init(&m_advertising, &init);
APP_ERROR_CHECK(err_code);
ble_advertising_conn_cfg_tag_set(&m_advertising, APP_BLE_CONN_CFG_TAG);
}
/**@brief Function for initialization Scanning Module.
*/
static void scan_init(void)
{
ret_code_t err_code;
err_code = nrf_ble_scan_init(&m_scan, NULL, NULL);
APP_ERROR_CHECK(err_code);
// //RK test NUS
err_code = nrf_ble_scan_filter_set(&m_scan, SCAN_UUID_FILTER, &m_nus_uuid);
APP_ERROR_CHECK(err_code);
err_code = nrf_ble_scan_filters_enable(&m_scan, NRF_BLE_SCAN_UUID_FILTER, false);
APP_ERROR_CHECK(err_code);
}
//RK test NUS
/**@brief Function for handling database discovery events.
*
* @details This function is a callback function to handle events from the database discovery module.
* Depending on the UUIDs that are discovered, this function forwards the events
* to their respective services.
*
* @param[in] p_event Pointer to the database discovery event.
*/
static void db_disc_handler(ble_db_discovery_evt_t * p_evt)
{
ble_nus_c_on_db_disc_evt(&m_ble_nus_c, p_evt);
}
/**@brief Function for handling characters received by the Nordic UART Service (NUS).
*
* @details This function takes a list of characters of length data_len and prints the characters out on UART.
* If @ref ECHOBACK_BLE_UART_DATA is set, the data is sent back to sender.
*/
static void ble_nus_chars_received_uart_print(uint8_t * p_data, uint16_t data_len)
{
ret_code_t ret_val;
NRF_LOG_DEBUG("Receiving data.");
NRF_LOG_HEXDUMP_DEBUG(p_data, data_len);
for (uint32_t i = 0; i < data_len; i++)
{
do
{
ret_val = app_uart_put(p_data[i]);
if ((ret_val != NRF_SUCCESS) && (ret_val != NRF_ERROR_BUSY))
{
NRF_LOG_ERROR("app_uart_put failed for index 0x%04x.", i);
APP_ERROR_CHECK(ret_val);
}
} while (ret_val == NRF_ERROR_BUSY);
}
if (p_data[data_len-1] == '\r')
{
while (app_uart_put('\n') == NRF_ERROR_BUSY);
}
#if 0 //RK
if (ECHOBACK_BLE_UART_DATA)
{
// Send data back to the peripheral.
do
{
ret_val = ble_nus_c_string_send(&m_ble_nus_c, p_data, data_len);
if ((ret_val != NRF_SUCCESS) && (ret_val != NRF_ERROR_BUSY))
{
NRF_LOG_ERROR("Failed sending NUS message. Error 0x%x. ", ret_val);
APP_ERROR_CHECK(ret_val);
}
} while (ret_val == NRF_ERROR_BUSY);
}
#endif
}
/**@brief Function for handling app_uart events.
*
* @details This function receives a single character from the app_uart module and appends it to
* a string. The string is sent over BLE when the last character received is a
* 'new line' '\n' (hex 0x0A) or if the string reaches the maximum data length.
*/
void uart_event_handle(app_uart_evt_t * p_event)
{
static uint8_t data_array[BLE_NUS_MAX_DATA_LEN];
static uint16_t index = 0;
uint32_t ret_val;
switch (p_event->evt_type)
{
/**@snippet [Handling data from UART] */
case APP_UART_DATA_READY:
UNUSED_VARIABLE(app_uart_get(&data_array[index]));
index++;
if ((data_array[index - 1] == '\n') || (index >= (m_ble_nus_max_data_len)))
{
NRF_LOG_DEBUG("Ready to send data over BLE NUS");
NRF_LOG_HEXDUMP_DEBUG(data_array, index);
do
{
ret_val = ble_nus_c_string_send(&m_ble_nus_c, data_array, index);
if ( (ret_val != NRF_ERROR_INVALID_STATE) && (ret_val != NRF_ERROR_RESOURCES) )
{
APP_ERROR_CHECK(ret_val);
}
} while (ret_val == NRF_ERROR_RESOURCES);
index = 0;
}
break;
/**@snippet [Handling data from UART] */
case APP_UART_COMMUNICATION_ERROR:
NRF_LOG_ERROR("Communication error occurred while handling UART.");
APP_ERROR_HANDLER(p_event->data.error_communication);
break;
case APP_UART_FIFO_ERROR:
NRF_LOG_ERROR("Error occurred in FIFO module used by UART.");
APP_ERROR_HANDLER(p_event->data.error_code);
break;
default:
break;
}
}
/**@brief Callback handling Nordic UART Service (NUS) client events.
*
* @details This function is called to notify the application of NUS client events.
*
* @param[in] p_ble_nus_c NUS client handle. This identifies the NUS client.
* @param[in] p_ble_nus_evt Pointer to the NUS client event.
*/
/**@snippet [Handling events from the ble_nus_c module] */
static void ble_nus_c_evt_handler(ble_nus_c_t * p_ble_nus_c, ble_nus_c_evt_t const * p_ble_nus_evt)
{
ret_code_t err_code;
switch (p_ble_nus_evt->evt_type)
{
case BLE_NUS_C_EVT_DISCOVERY_COMPLETE:
NRF_LOG_INFO("Discovery complete.");
err_code = ble_nus_c_handles_assign(p_ble_nus_c, p_ble_nus_evt->conn_handle, &p_ble_nus_evt->handles);
APP_ERROR_CHECK(err_code);
err_code = ble_nus_c_tx_notif_enable(p_ble_nus_c);
APP_ERROR_CHECK(err_code);
NRF_LOG_INFO("Connected to device with Nordic UART Service.");
break;
case BLE_NUS_C_EVT_NUS_TX_EVT:
ble_nus_chars_received_uart_print(p_ble_nus_evt->p_data, p_ble_nus_evt->data_len);
break;
case BLE_NUS_C_EVT_DISCONNECTED:
NRF_LOG_INFO("Disconnected.");
scan_start();
break;
}
}
/**@brief Function for initializing the Nordic UART Service (NUS) client. */
static void nus_c_init(void)
{
ret_code_t err_code;
ble_nus_c_init_t init;
init.evt_handler = ble_nus_c_evt_handler;
err_code = ble_nus_c_init(&m_ble_nus_c, &init);
APP_ERROR_CHECK(err_code);
}
/** @brief Function for initializing the database discovery module. */
static void db_discovery_init(void)
{
ret_code_t err_code = ble_db_discovery_init(db_disc_handler);
APP_ERROR_CHECK(err_code);
}
//RK end NUS
/**
* @brief Function for initializing a block allocator.
*/
static inline void balloc_init(void)
{
ret_code_t err_code;
err_code = nrf_balloc_init(&m_srv_pool);
APP_ERROR_CHECK(err_code);
}
void ble_m_init(void)
{
// Initialization of required BLE components.
balloc_init();
ble_stack_init();
scan_init();
gap_params_init();
gatt_init();
conn_params_init();
advertising_init();
//RK added to test NUS
db_discovery_init();
nus_c_init();
//Rk end NUS
}
Above is the code for ble_m.c.
sure i will take a look
i haven't looked yet but make sure you didn't define the uart port twice. The ble_nus is not be attached to the cli uart. maybe there is no output because it is defined twice.