Hi Nordic
I have some issue When using NRF52832 central to connect the NRF52832 peripheral.
i am following the SDK15.3.0 ble_app_uart & ble_app_uart_c to deign the central & peripheral project. and i also refer the example ble_app_gls to add the static passkey with bonding & MITM in my project.
in my central project, when every time this system init i will call the pm_peers_delete() to delete all peer id. the reason is the central is working as test station in production line. it needs to connect each peripheral production one by one.
The issue is central can scan and peering the peripheral successfully every time. but it could not receive any data from peripheral after first time bonding succeed.
the central can send data to peripheral by NUS service, the peripheral also can receive the data succeed and send back the data to central, however the central could not receive the data from peripheral.
And there is no any error report during the peering or data transmission.
after reconnect again(the peripheral restart or central call the sd_ble_gap_disconnect()), both of them are works fine.
could someone help to take look what is the issue for this case?
The log form peripheral
<info> app: AQS started. <info> app: Connected <info> app: Data len is set to 0x14(20) <info> app: PM_EVT_CONN_SEC_CONFIG_REQ <info> app: BLE_GAP_EVT_PASSKEY_DISPLAY. <info> app: Passkey: $ <info> peer_manager_handler: Connection secured: role: Peripheral, conn_handle: 1, procedure: Bonding <info> app: PM_EVT_CONN_SEC_SUCCEEDED <info> app: Link secured. Role: 1. conn_handle: 1, Procedure: 1 <info> app: BLE_GAP_EVT_AUTH_STATUS: status=0x0 bond=0x1 lv4: 0 kdist_own:0x3 kdist_peer:0x3 <info> app: Received data from BLE NUS. Writing data on UART. <info> app: p_evt->type: 128 <info> app: Send back the data to centrol board successfully. <info> app: Received data from BLE NUS. Writing data on UART. <info> app: p_evt->type: 128 <info> app: Send back the data to centrol board successfully. <info> app: Received data from BLE NUS. Writing data on UART. <info> app: p_evt->type: 128 <info> app: Send back the data to centrol board successfully.
The log from central
BLE UART central example started. <info> app: BLE UART central example started. <info> app: Erase bonds! <error> peer_manager_handler: Peer deleted successfully: peer_id: 0 <info> app: peer_id 0 <info> peer_manager_handler: All peers deleted. <info> app: peer_id 65535 <info> app: NRF_BLE_SCAN_EVT_FILTER_MATCH <info> app: Connecting to target DFD7295452C3 <info> app: ATT MTU exchange completed. <info> app: Ble NUS max data length set to 0x14(20) <info> app: Discovery complete. <info> app: peer_id 65535 <info> app: PM_EVT_CONN_SEC_PARAMS_REQ <info> app: peer_id 65535 <info> app: Connected to device with Nordic UART Service. <info> app: peer_id 65535 <info> app: PM_EVT_CONN_SEC_PARAMS_REQ <info> peer_manager_handler: Connection secured: role: Central, conn_handle: 0, procedure: Bonding <info> app: peer_id 0 <info> app: pairing succeed. <info> app: peer_id 0 <info> app: peer_id 0 <info> app: peer_id 0 <info> app: send data over BLE NUS <info> app: send data over BLE NUS <info> app: send data over BLE NUS <info> app: send data over BLE NUS <info> app: Time out disconnect and resconnect again <info> app: Disconnected. <info> app: Disconnected. conn_handle: 0x0, reason: 0x16 <info> app: NRF_BLE_SCAN_EVT_FILTER_MATCH <info> app: Connecting to target DFD7295452C3 <info> app: peer_id 0 <info> app: PM_EVT_CONN_SEC_PARAMS_REQ <info> app: peer_id 0 <info> app: peer_id 0 <info> app: peer_id 0 <info> app: peer_id 0 <info> app: ATT MTU exchange completed. <info> app: Ble NUS max data length set to 0x14(20) <info> peer_manager_handler: Connection secured: role: Central, conn_handle: 0, procedure: Encryption <info> app: peer_id 0 <info> app: peer_id 0 <info> app: pairing succeed. <info> app: Discovery complete. <info> app: peer_id 0 <info> app: PM_EVT_CONN_SEC_PARAMS_REQ <info> app: peer_id 0 <info> app: Connected to device with Nordic UART Service. <info> peer_manager_handler: Connection secured: role: Central, conn_handle: 0, procedure: Encryption <info> app: peer_id 0 <info> app: peer_id 0 <info> app: pairing succeed. <info> app: send data over BLE NUS <info> app: Recive the data from BLE <info> app: send data over BLE NUS <info> app: Recive the data from BLE <info> app: send data over BLE NUS <info> app: Recive the data from BLE
The code for peripheral :
/**
* Copyright (c) 2014 - 2018, David Duan
*
* 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 David Duan "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 <stdbool.h>
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include "nordic_common.h"
#include "app_error.h"
#include "app_uart.h"
#include "ble.h"
#include "ble_hci.h"
#include "ble_srv_common.h"
#include "ble_advdata.h"
#include "ble_advertising.h"
#include "ble_conn_params.h"
#include "nrf_sdh.h"
#include "nrf_sdh_soc.h"
#include "nrf_sdh_ble.h"
#include "app_timer.h"
#include "app_util_platform.h"
#include "fds.h"
#include "peer_manager.h"
#include "bsp_btn_ble.h"
#include "sensorsim.h"
#include "ble_conn_state.h"
#include "ble_nus.h"
#include "nrf.h"
#include "nrf_sdm.h"
#include "nrf_uart.h"
#include "nrf_drv_timer.h"
#include "nrf_ble_gatt.h"
#include "nrf_ble_qwr.h"
#include "nrf_pwr_mgmt.h"
#include "nrf_drv_saadc.h"
#include "nrf_drv_timer.h"
#include "nrf_drv_ppi.h"
#include "nrf_delay.h"
#include "nrf_soc.h"
#include "nrf_fstorage.h"
#include "nrf_fstorage_sd.h"
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"
//for bluetooth passkey
#define STATIC_PASSKEY "123455"
//#define STATIC_PASSKEY "123455221212321321321321321" //static password
//for bluetooth passkey
//for bluetooth advertise data
#define APP_COMPANY_IDENTIFIER 0x4341 //ASC 0X4341 CA
#define NUS_SERVICE_UUID_TYPE BLE_UUID_TYPE_VENDOR_BEGIN /**< UUID type for the Nordic UART Service (vendor specific). */
#define APP_ADV_INTERVAL 300 /**< The advertising interval (in units of 0.625 ms. This value corresponds to 187.5 ms). */
#define BLE_ADV_FAST_ENABLED true
//for bluetooth advertise data
//for saadc
#define SAMPLES_IN_BUFFER 3
//for saadc
//Test command define
#define TestRead_SerialNum 0x01
#define TestRead_SoftwareVer 0x02
#define TestRead_PartNum1 0x03
#define TestRead_PartNum2 0x04
#define TestRead_RunningStatus 0x05
#define TestRead_PRE_TestStatus 0x06
#define TestRead_Fnl_TestStatus 0x07
#define TestRead_EOL_Test 0xA8
#define MAC_Address_Read 0xA6
#define TestWrite_EOL_Test 0xA7
#define TestWrite_SerialNum 0xA4
#define TestWrite_SoftwareVer 0xA3
#define TestWrite_PartNum1 0xA1
#define TestWrite_PartNum2 0xA2
#define TestWrite_RunningStatus 0x50
#define TestWrite_PRE_TestStatus 0xA5
#define TestWrite_Fnl_TestStatus 0xA0
#define TestEnable_LED_ON 0x08
#define TestEnable_LED_OFF 0x09
#define TestWrite_Softver_SerNum_PRETest 0xB0
#define TestWrite_FinalT_PN1_PN2 0xB1
#define Erase_PAGE1 0xF0 // ERASE software number,Serialnumber & Pre_Test_Status
#define Erase_PAGE2 0xF1 // ERASE part number1, part number2 & Final_Test_Status
//Test command define
//flash
#define FsstartAdd 0x76000
#define FsendAdd 0x77fff
#define FlasePage1 0x76000
#define FlasePage2 0x77000
//flash
//for pin cfg
#define LED_1 17
#define LED_2 18
#define HV_EN 9
#define SAADC_IN_BUFFER 3
#define LED_Green_OFF nrf_gpio_pin_clear(LED_1)
#define LED_Green_ON nrf_gpio_pin_set(LED_1)
#define LED_Red_OFF nrf_gpio_pin_clear(LED_2)
#define LED_Red_ON nrf_gpio_pin_set(LED_2)
#define HV_EN_ON nrf_gpio_pin_set(HV_EN)
#define HV_EN_OFF nrf_gpio_pin_clear(HV_EN)
//for pin cfg
//for peer, adv init define
#define APP_ADV_DURATION 0 /**<advertisning for loop **/
#define APP_BLE_OBSERVER_PRIO 3 /**< Application's BLE observer priority. You shouldn't need to modify this value. */
#define APP_BLE_CONN_CFG_TAG 1 /**< A tag identifying the SoftDevice BLE configuration. */
#define MIN_CONN_INTERVAL MSEC_TO_UNITS(100, UNIT_1_25_MS) /**< Minimum acceptable connection interval (0.1 seconds). */
#define MAX_CONN_INTERVAL MSEC_TO_UNITS(200, UNIT_1_25_MS) /**< Maximum acceptable connection interval (0.2 second). */
#define SLAVE_LATENCY 0 /**< Slave latency. */
#define CONN_SUP_TIMEOUT MSEC_TO_UNITS(4000, UNIT_10_MS) /**< Connection supervisory timeout (4 seconds). */
#define FIRST_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(5000) /**< 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) /**< 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 SEC_PARAM_BOND 1 /**< Perform bonding. */
#define SEC_PARAM_MITM 1 /**< Man In The Middle protection required. The connection need to input the password */
#define SEC_PARAM_LESC 0 /**< LE Secure Connections enabled. */
#define SEC_PARAM_KEYPRESS 0 /**< Keypress notifications not enabled. */
//#define SEC_PARAM_IO_CAPABILITIES BLE_GAP_IO_CAPS_NONE /**< No I/O capabilities. */
#define SEC_PARAM_IO_CAPABILITIES BLE_GAP_IO_CAPS_DISPLAY_ONLY /**< Display I/O capabilities. */
#define SEC_PARAM_OOB 0 /**< Out Of Band data not available. */
#define SEC_PARAM_MIN_KEY_SIZE 7 /**< Minimum encryption key size. */
#define SEC_PARAM_MAX_KEY_SIZE 16 /**< Maximum encryption key size. */
#define DEAD_BEEF 0xDEADBEEF /**< Value used as error code on stack dump, can be used to identify stack location on stack unwind. */
//for peer, adv init define
#define inputOCP_lv0 1000
#define inputOCP_lv1 1000
#define inputOCP_lv2 1300
#define inputOCP_lv3 1300
#define inputOCP_lv4 1300
//for new NTC SDNT1608X473H4150FTF for testing
#define OTPH_ERT 180 // 100 deg
#define OTPHR_ERT 243 // 90 deg recover
#define OTPL_ERT 3146 // -30 deg
#define OTPLR_ERT 3091 // -25 deg recover
#define zeor_deg_adc 2561 //zero deg the NTC value
//for threhold define
//uart
#define UART_TX_BUF_SIZE 256 /**< UART TX buffer size. */
#define UART_RX_BUF_SIZE 256 /**< UART RX buffer size. */
//uart
////////////////////////////////////global value///////////////////////////////////
//flash reading
uint32_t FWversion =0x76000;
uint32_t Serialnumber =0x76010;
uint32_t Pre_Test_Status =0x76020;
uint32_t Final_Test_Status = 0x77000;
uint32_t Part_Num1=0x77010;
uint32_t Part_Num2=0x77020;
uint32_t EOL_test_status=0x77030;
//flash reading
// for BLE safety connect
bool sec_conn = false; //verify this connection is security connection or not
bool conn_status = false; //false measning it allow to connect true means only advertise without connectable
// for BLE safety connect
// for BLE NUS
static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID; /**< Handle of the current connection. */
static uint16_t m_ble_nus_max_data_len = BLE_GATT_ATT_MTU_DEFAULT - 3; /**< Maximum length of data (in bytes) that can be transmitted to the peer by the Nordic UART service module. */
uint8_t AQS_Rev_Data[7];
uint8_t AQS_pack_Rev_Data[12]; //BLE_Reciving_data
bool Rec_flag = false;
// for BLE NUS
uint16_t Temp_val=0;
uint8_t H_item=0;
uint8_t L_item=0;
uint16_t LF_val=5000;
uint16_t HF_val=5000;
uint16_t L_diff=0;
uint16_t H_diff=0;
uint16_t Final_Temp=0;
uint8_t numitem=0;
// Temp
//for general glabal value
uint8_t powerstatus = 0; // collect the running status of whole system
bool ONOFF_flag = false; //output turn on or off
bool first_flag = true; //system first turn on or recover
uint8_t powerflag = 0; //for main loop
uint8_t ocpcount = 0; //over current protection count
uint8_t ocpdelaycount=0; //for over current delay count
uint8_t lcpcount = 0; //low current protection count
uint8_t otpcount = 0; //over temp protection count
uint8_t ovpcount = 0; //over voltage protection count
uint8_t uvpcount = 0; //under voltage protection count
uint8_t curcount = 0; //count the current value
uint32_t current_val=0; //current read value from ADC
uint16_t Upload_current_val=0; // upload the current value by bluetooth
uint8_t Pro_level; // level 0 : product mode level 1: production mode level 2: operation mode
//for general glabal value
//for saadc
static const nrf_drv_timer_t m_timer = NRF_DRV_TIMER_INSTANCE(1); //USE Time1 for SAADC & Time count
static nrf_saadc_value_t m_buffer_pool[2][SAMPLES_IN_BUFFER];
static nrf_ppi_channel_t m_ppi_channel;
static uint32_t m_adc_evt_counter;
uint16_t adc_value[3];
//for saadc
//for software ver
uint8_t softver_value[3]= {0};
//for software ver
// for sec peer
static pm_peer_id_t m_peer_to_be_deleted = PM_PEER_ID_INVALID;
// for sec peer
//for time count
uint16_t Timecount = 0;
uint16_t Delaycount = 0;
uint16_t unsafe_conn_Time_count=0; //Time count when connection not peer if the over the timecount disconnect the device
uint16_t LED_count=0;
bool adv_flag = false;
//for time count
//logic flag value
bool UVPflag = false;
bool OVPflag = false;
bool OCPflag = false;
bool LCPflag = false;
bool LEDvisFlag = false; //enable or disenable LED visibility testing
//logic flag value
//for adv
uint8_t advert_str[24];
uint16_t adv_str_len = 16; //max length is 21
uint8_t *DEVICE_NAME="CAAQS"; /**< Name of device. Will be included in the advertising data. */
static uint8_t m_adv_handle = BLE_GAP_ADV_SET_HANDLE_NOT_SET; /**< Advertising handle used to identify an advertising set. */
static uint8_t m_enc_advdata[BLE_GAP_ADV_SET_DATA_SIZE_MAX]; /**< Buffer for storing an encoded advertising set. */
static uint8_t m_enc_scan_response_data[BLE_GAP_ADV_SET_DATA_SIZE_MAX]; /**< Buffer for storing an encoded scan data. */
static volatile bool update_request = false;
//for adv
/* Dummy data to read/write to flash. */
static uint32_t Flash_W_data = 0XFFFFFFFF;
static uint32_t Flash_R_data = 0XFFFFFFFF;
static void fstorage_evt_handler(nrf_fstorage_evt_t * p_evt);
//for encapsulation define
BLE_NUS_DEF(m_nus, NRF_SDH_BLE_TOTAL_LINK_COUNT); /**< BLE NUS service instance. */
NRF_BLE_GATT_DEF(m_gatt); /**< GATT module instance. */
NRF_BLE_QWR_DEF(m_qwr); /**< Context for the Queued Write module.*/
//for encapsulation define
////////////////////////////////////struct define///////////////////////////////////
/**@brief Struct that contains pointers to the encoded advertising data. */
static ble_gap_adv_data_t m_adv_data =
{
.adv_data =
{
.p_data = m_enc_advdata,
.len = BLE_GAP_ADV_SET_DATA_SIZE_MAX
},
.scan_rsp_data =
{
.p_data = m_enc_scan_response_data,
.len = BLE_GAP_ADV_SET_DATA_SIZE_MAX
}
};
//for BLE sending Data
/**@brief Sending Data Package */
typedef struct
{
uint8_t Length;
uint8_t Data[7]; /**< Connection Signature Resolving Key. */
} AQS_BLE_Send_Data_Package;
AQS_BLE_Send_Data_Package AQS_Send_Data;
//for BLE sending Data
//for adv service ID
static ble_uuid_t m_adv_uuids[] = /**< Universally unique service identifiers. */
{
// {BLE_UUID_DEVICE_INFORMATION_SERVICE, BLE_UUID_TYPE_BLE}
{BLE_UUID_NUS_SERVICE, NUS_SERVICE_UUID_TYPE}
};
//for adv service ID
static void advertising_start(bool erase_bonds);
/**@brief Callback function for asserts in the SoftDevice.
*
* @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 analyze
* 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] 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 adc event handle function
*
* @param[out] None
*/
void saadc_callback(nrf_drv_saadc_evt_t const * p_event)
{
uint16_t adc_read_value;
uint32_t Red_LED_status;
uint8_t Green_LED_status;
ret_code_t err_code;
//Timercounter
Timecount++;
Delaycount++;
if(Delaycount>=500)
{
Delaycount=501;
}
//for unsafe connect
if(Pro_level==2)
{
unsafe_conn_Time_count++;
if(unsafe_conn_Time_count>50000)
{
if(sec_conn==false)
{
err_code=sd_ble_gap_disconnect(m_conn_handle,BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
APP_ERROR_CHECK(err_code);
Pro_level=1;
}
unsafe_conn_Time_count=0;
}
}
else
{
unsafe_conn_Time_count=0;
}
//saadc
if (p_event->type == NRF_DRV_SAADC_EVT_DONE)
{
ret_code_t err_code;
err_code = nrf_drv_saadc_buffer_convert(p_event->data.done.p_buffer, SAMPLES_IN_BUFFER);
APP_ERROR_CHECK(err_code);
int i;
// NRF_LOG_INFO("ADC event number: %d", (int)m_adc_evt_counter);
adc_value[0]=p_event->data.done.p_buffer[0];
adc_value[1]=p_event->data.done.p_buffer[1];
adc_value[2]=p_event->data.done.p_buffer[2];
for (i = 0; i < 3; i++)
{
adc_read_value=p_event->data.done.p_buffer[i];
if(adc_read_value>65530)
{
adc_read_value=0;
}
adc_value[i]=adc_read_value*3.5133495145631067961165048543689;
}
}
}
/**@brief Function for custizmize borad Digtal I/O , A/D, Time counter setting
*
* @param[out] None
*/
void bsp_demo_init(void)
{
ret_code_t err_code;
nrf_gpio_cfg_output(LED_1);
nrf_gpio_cfg_output(LED_2);
nrf_gpio_cfg_output(HV_EN);
nrf_gpio_pin_clear(LED_1);
nrf_gpio_pin_clear(LED_2);
// nrf_gpio_pin_set(LED_2);
nrf_gpio_pin_clear(HV_EN);
//ADC for testing
nrf_saadc_channel_config_t channel_config1 = NRF_DRV_SAADC_DEFAULT_CHANNEL_CONFIG_SE(NRF_SAADC_INPUT_AIN6);
// nrf_saadc_channel_config_t channel_config1 = NRF_DRV_SAADC_DEFAULT_CHANNEL_CONFIG_SE(NRF_SAADC_INPUT_AIN4); // for testing
nrf_saadc_channel_config_t channel_config2 = NRF_DRV_SAADC_DEFAULT_CHANNEL_CONFIG_SE(NRF_SAADC_INPUT_AIN2);
nrf_saadc_channel_config_t channel_config3 = NRF_DRV_SAADC_DEFAULT_CHANNEL_CONFIG_SE(NRF_SAADC_INPUT_AIN1);
err_code = nrf_drv_saadc_init(NULL, saadc_callback);
APP_ERROR_CHECK(err_code);
//ADC for testing
err_code = nrf_drv_saadc_channel_init(2, &channel_config2);
APP_ERROR_CHECK(err_code);
// err_code = nrf_drv_saadc_channel_init(4, &channel_config1);
// APP_ERROR_CHECK(err_code);
err_code = nrf_drv_saadc_channel_init(6, &channel_config1);
APP_ERROR_CHECK(err_code);
err_code = nrf_drv_saadc_channel_init(1, &channel_config3);
APP_ERROR_CHECK(err_code);
err_code = nrf_drv_saadc_buffer_convert(m_buffer_pool[0], SAMPLES_IN_BUFFER);
APP_ERROR_CHECK(err_code);
err_code = nrf_drv_saadc_buffer_convert(m_buffer_pool[1], SAMPLES_IN_BUFFER);
APP_ERROR_CHECK(err_code);
}
/**@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' '\n' (hex 0x0A) or if the string has reached the maximum 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 transdata[2];
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(index > 1)
{
NRF_LOG_DEBUG("Ready to send data over BLE NUS");
NRF_LOG_HEXDUMP_DEBUG(data_array, index);
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;
}
}
/**@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_evt Nordic UART Service event.
*/
/**@snippet [Handling the data received over BLE] */
static void nus_data_handler(ble_nus_evt_t * p_evt)
{
if (p_evt->type == BLE_NUS_EVT_RX_DATA)
{
uint32_t err_code;
uint32_t write_data;
uint32_t write_data1;
uint32_t write_data2;
uint32_t write_data3;
// NRF_LOG_DEBUG("Received data from BLE NUS. Writing data on UART.");
// NRF_LOG_HEXDUMP_DEBUG(p_evt->params.rx_data.p_data, p_evt->params.rx_data.length);
NRF_LOG_INFO("Received data from BLE NUS. Writing data on UART.");
// NRF_LOG_INFO("p_evt->type: %d", p_evt->type );
if( p_evt->params.rx_data.length == 7)
{
NRF_LOG_INFO("p_evt->type: %d", p_evt->params.rx_data.p_data[6] );
if(((p_evt->params.rx_data.p_data[6] == 0x80)||(p_evt->params.rx_data.p_data[6] == 0x81))&&(p_evt->params.rx_data.p_data[0] == 0xED))
{
for(uint8_t i = 0; i< 7;i++)
{
AQS_Rev_Data[i]=p_evt->params.rx_data.p_data[i];
}
Rec_flag=true;
}
}
}
}
/**@brief Function for handling Peer Manager events.
*
* @param[in] p_evt Peer Manager event.
*/
static void pm_evt_handler(pm_evt_t const * p_evt)
{
ret_code_t err_code;
pm_handler_on_pm_evt(p_evt);
pm_handler_disconnect_on_sec_failure(p_evt);
pm_handler_flash_clean(p_evt);
switch (p_evt->evt_id)
{
case PM_EVT_CONN_SEC_SUCCEEDED:
{
sec_conn=true;
pm_conn_sec_status_t conn_sec_status;
NRF_LOG_INFO("PM_EVT_CONN_SEC_SUCCEEDED");
// Check if the link is authenticated (meaning at least MITM).
err_code = pm_conn_sec_status_get(p_evt->conn_handle, &conn_sec_status);
APP_ERROR_CHECK(err_code);
if (conn_sec_status.mitm_protected)
{
NRF_LOG_INFO("Link secured. Role: %d. conn_handle: %d, Procedure: %d",
ble_conn_state_role(p_evt->conn_handle),
p_evt->conn_handle,
p_evt->params.conn_sec_succeeded.procedure);
}
else
{
// The peer did not use MITM, disconnect.
NRF_LOG_INFO("Collector did not use MITM, disconnecting");
err_code = pm_peer_id_get(m_conn_handle, &m_peer_to_be_deleted);
APP_ERROR_CHECK(err_code);
err_code = sd_ble_gap_disconnect(m_conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
APP_ERROR_CHECK(err_code);
}
} break;
case PM_EVT_CONN_SEC_CONFIG_REQ:
{
NRF_LOG_INFO("PM_EVT_CONN_SEC_CONFIG_REQ");
// Reject pairing request from an already bonded peer.
pm_conn_sec_config_t conn_sec_config = {.allow_repairing = true};
pm_conn_sec_config_reply(p_evt->conn_handle, &conn_sec_config);
}break;
case PM_EVT_CONN_SEC_FAILED:
NRF_LOG_INFO("PM_EVT_CONN_SEC_FAILED");
m_conn_handle = BLE_CONN_HANDLE_INVALID;
break;
case PM_EVT_PEERS_DELETE_SUCCEEDED:
NRF_LOG_INFO("PM_EVT_PEERS_DELETE_SUCCEEDED");
Pro_level=1;
break;
default:
break;
}
}
/**@brief Function for the Timer initialization.
*
* @details Initializes the timer module. This creates and starts application timers.
*/
static void timers_init(void)
{
// Initialize timer module.
ret_code_t err_code = app_timer_init();
APP_ERROR_CHECK(err_code);
}
/**@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;
app_uart_comm_params_t const comm_params =
{
.rx_pin_no = RX_PIN_NUMBER,
.tx_pin_no = TX_PIN_NUMBER,
.rts_pin_no = RTS_PIN_NUMBER,
.cts_pin_no = CTS_PIN_NUMBER,
.flow_control = APP_UART_FLOW_CONTROL_DISABLED,
.use_parity = false,
#if defined (UART_PRESENT)
.baud_rate = NRF_UART_BAUDRATE_115200
#else
.baud_rate = NRF_UARTE_BAUDRATE_115200
#endif
};
APP_UART_FIFO_INIT(&comm_params,
UART_RX_BUF_SIZE,
UART_TX_BUF_SIZE,
uart_event_handle,
APP_IRQ_PRIORITY_LOWEST,
err_code);
APP_ERROR_CHECK(err_code);
}
/**@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_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 events from the GATT library. */
void gatt_evt_handler(nrf_ble_gatt_t * p_gatt, nrf_ble_gatt_evt_t const * p_evt)
{
if ((m_conn_handle == p_evt->conn_handle) && (p_evt->evt_id == NRF_BLE_GATT_EVT_ATT_MTU_UPDATED))
{
m_ble_nus_max_data_len = p_evt->params.att_mtu_effective - OPCODE_LENGTH - HANDLE_LENGTH;
NRF_LOG_INFO("Data len is set to 0x%X(%d)", m_ble_nus_max_data_len, m_ble_nus_max_data_len);
}
NRF_LOG_DEBUG("ATT MTU exchange completed. central 0x%x peripheral 0x%x",
p_gatt->att_mtu_desired_central,
p_gatt->att_mtu_desired_periph);
}
/**@brief Function for initializing the GATT module.
*/
static void gatt_init(void)
{
ret_code_t err_code = nrf_ble_gatt_init(&m_gatt, gatt_evt_handler);
APP_ERROR_CHECK(err_code);
err_code = nrf_ble_gatt_att_mtu_periph_set(&m_gatt, NRF_SDH_BLE_GATT_MAX_MTU_SIZE);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling Queued Write Module errors.
*
* @details A pointer to this function will be passed to each service which may need to inform the
* application about an error.
*
* @param[in] nrf_error Error code containing information about what went wrong.
*/
static void nrf_qwr_error_handler(uint32_t nrf_error)
{
APP_ERROR_HANDLER(nrf_error);
}
/**@brief Function for initializing services that will be used by the application.
*/
static void services_init(void)
{
ret_code_t err_code;
ble_nus_init_t nus_init;
nrf_ble_qwr_init_t qwr_init = {0};
// Initialize Queued Write Module.
qwr_init.error_handler = nrf_qwr_error_handler;
err_code = nrf_ble_qwr_init(&m_qwr, &qwr_init);
APP_ERROR_CHECK(err_code);
// Initialize Glucose Service - sample selection of feature bits.
// 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 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;
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 a Connection Parameters error.
*
* @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)
{
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_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)
{
ret_code_t err_code;
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)
{
ret_code_t err_code;
switch (ble_adv_evt)
{
case BLE_ADV_EVT_FAST:
NRF_LOG_INFO("Fast advertising.");
err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING);
APP_ERROR_CHECK(err_code);
break;
case BLE_ADV_EVT_IDLE:
sleep_mode_enter();
break;
case BLE_ADV_MODE_FAST_NOCONNECT:
NRF_LOG_INFO("Fast advertising.");
err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING);
APP_ERROR_CHECK(err_code);
break;
default:
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)
{
ret_code_t err_code = NRF_SUCCESS;
uint16_t role = ble_conn_state_role(m_conn_handle);
/*
if (role == BLE_GAP_ROLE_PERIPH)
{
NRF_LOG_INFO("PERL connecting");
}
else
{
NRF_LOG_INFO("CENTRL connecting");
}
*/
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
NRF_LOG_INFO("Connected");
// m_peer_to_be_deleted = PM_PEER_ID_INVALID;
m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
err_code = nrf_ble_qwr_conn_handle_assign(&m_qwr, m_conn_handle);
APP_ERROR_CHECK(err_code);
conn_status=true;
sec_conn=false; // unsafe connection
break;
case BLE_GAP_EVT_DISCONNECTED:
NRF_LOG_INFO("Disconnected");
// LED indication will be changed when advertising starts.
sec_conn=false;
m_conn_handle = BLE_CONN_HANDLE_INVALID;
if (m_peer_to_be_deleted != PM_PEER_ID_INVALID)
{
err_code = pm_peer_delete(m_peer_to_be_deleted);
APP_ERROR_CHECK(err_code);
NRF_LOG_DEBUG("Collector's bond deleted");
printf("\r\Collector's bond deleted.\r\n");
m_peer_to_be_deleted = PM_PEER_ID_INVALID;
}
sec_conn=false;
conn_status=false;
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;
case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
NRF_LOG_DEBUG("BLE_GAP_EVT_SEC_PARAMS_REQUEST");
/*
err_code = sd_ble_gap_sec_params_reply(m_conn_handle, BLE_GAP_SEC_STATUS_SUCCESS, NULL, NULL);
APP_ERROR_CHECK(err_code); // the error point
*/
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;
case BLE_GATTC_EVT_TIMEOUT:
// Disconnect on GATT Client timeout event.
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 timeout event.
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_GAP_EVT_PASSKEY_DISPLAY:
NRF_LOG_INFO("BLE_GAP_EVT_PASSKEY_DISPLAY.");
NRF_LOG_INFO("Passkey: %s", p_ble_evt->evt.gap_evt.params.passkey_display.passkey);
break;
case BLE_GAP_EVT_AUTH_KEY_REQUEST:
NRF_LOG_INFO("BLE_GAP_EVT_AUTH_KEY_REQUEST");
break;
case BLE_GAP_EVT_LESC_DHKEY_REQUEST:
NRF_LOG_INFO("BLE_GAP_EVT_LESC_DHKEY_REQUEST");
break;
case BLE_GAP_EVT_AUTH_STATUS:
sec_conn = true;
printf("\r\nAUTH_STATUS.\r\n");
NRF_LOG_INFO("BLE_GAP_EVT_AUTH_STATUS: status=0x%x bond=0x%x lv4: %d kdist_own:0x%x kdist_peer:0x%x",
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,
*((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;
default:
// No implementation needed.
break;
}
}
/**@brief Function for initializing the BLE stack.
*
* @details Initializes the SoftDevice and the BLE event interrupt.
*/
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 Peer Manager initialization.
*/
static void peer_manager_init(void)
{
ble_gap_sec_params_t sec_param;
ret_code_t err_code;
err_code = pm_init();
APP_ERROR_CHECK(err_code);
memset(&sec_param, 0, sizeof(ble_gap_sec_params_t));
// Security parameters to be used for all security procedures.
sec_param.bond = SEC_PARAM_BOND;
sec_param.mitm = SEC_PARAM_MITM;
sec_param.lesc = SEC_PARAM_LESC;
sec_param.keypress = SEC_PARAM_KEYPRESS;
sec_param.io_caps = SEC_PARAM_IO_CAPABILITIES;
sec_param.oob = SEC_PARAM_OOB;
sec_param.min_key_size = SEC_PARAM_MIN_KEY_SIZE;
sec_param.max_key_size = SEC_PARAM_MAX_KEY_SIZE;
sec_param.kdist_own.enc = 1;
sec_param.kdist_own.id = 1;
sec_param.kdist_peer.enc = 1;
sec_param.kdist_peer.id = 1;
err_code = pm_sec_params_set(&sec_param);
APP_ERROR_CHECK(err_code);
err_code = pm_register(pm_evt_handler);
APP_ERROR_CHECK(err_code);
}
/**@brief Clear bond information from persistent storage.
*/
static void delete_bonds(void)
{
ret_code_t err_code;
NRF_LOG_INFO("Erase bonds!");
err_code = pm_peers_delete();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling events from the BSP module.
*
* @param[in] event Event generated when button is pressed.
*/
static void bsp_event_handler(bsp_event_t event)
{
ret_code_t err_code;
switch (event)
{
case BSP_EVENT_SLEEP:
sleep_mode_enter();
break; // BSP_EVENT_SLEEP
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; // BSP_EVENT_DISCONNECT
case BSP_EVENT_WHITELIST_OFF:
if (m_conn_handle == BLE_CONN_HANDLE_INVALID)
{
// err_code = ble_advertising_restart_without_whitelist(&m_advertising);
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
}
}
break; // BSP_EVENT_KEY_0
default:
break;
}
}
/**@brief Function for initializing the Advertising functionality.
*/
static void advertising_init(void)
{
ret_code_t err_code;
ble_advdata_t advdata;
ble_advdata_t srdata;
ble_advdata_manuf_data_t manuf_data;
ble_gap_adv_params_t adv_params;
ble_uuid_t adv_uuids[] = {{BLE_UUID_NUS_SERVICE, BLE_UUID_TYPE_VENDOR_BEGIN}};
memset(&advdata, 0, sizeof(advdata));
manuf_data.company_identifier = 0x4341;
manuf_data.data.p_data = advert_str;
manuf_data.data.size = adv_str_len;
advdata.name_type = BLE_ADVDATA_FULL_NAME;
advdata.include_appearance = false;
advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;
advdata.p_manuf_specific_data = &manuf_data;
// err_code = ble_advdata_encode(&advdata, m_adv_data.adv_data.p_data, &m_adv_data.adv_data.len);
// APP_ERROR_CHECK(err_code);
memset(&srdata, 0, sizeof(srdata));
srdata.uuids_complete.uuid_cnt = sizeof(adv_uuids) / sizeof(adv_uuids[0]);
srdata.uuids_complete.p_uuids = adv_uuids;
err_code = ble_advdata_encode(&srdata, m_adv_data.scan_rsp_data.p_data, &m_adv_data.scan_rsp_data.len);
APP_ERROR_CHECK(err_code);
// Set advertising parameters.
memset(&adv_params, 0, sizeof(adv_params));
adv_params.primary_phy = BLE_GAP_PHY_1MBPS;
adv_params.duration = APP_ADV_DURATION;
adv_params.properties.type = BLE_GAP_ADV_TYPE_CONNECTABLE_SCANNABLE_UNDIRECTED;
adv_params.p_peer_addr = NULL;
adv_params.filter_policy = BLE_GAP_ADV_FP_ANY;
adv_params.interval = APP_ADV_INTERVAL;
err_code = sd_ble_gap_adv_set_configure(&m_adv_handle, &m_adv_data, &adv_params);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for Update the Advertising functionality.
*/
void advertising_update(void)
{
ret_code_t err_code;
uint16_t input_voltage;
ble_advdata_t advdata; //adv data
ble_advdata_manuf_data_t manuf_data;
ble_gap_adv_params_t adv_params;
(void) sd_ble_gap_adv_stop(m_adv_handle);
advert_str[6]=0X0A;
advert_str[7]=0X0A;
advert_str[8]=0X0A;
advert_str[9]=0X0A;
advert_str[10]=0X0A;
advert_str[11]=0X0A;
advert_str[12]=0X0A;
advert_str[13]=0X0A;
advert_str[14]=0X0A;
advert_str[15]=0X0A;
// Build and set advertising data.
memset(&advdata, 0, sizeof(advdata));
manuf_data.company_identifier = 0x4341;
manuf_data.data.p_data = advert_str;
manuf_data.data.size = adv_str_len;
advdata.name_type = BLE_ADVDATA_FULL_NAME;
advdata.include_appearance = false;
advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;
advdata.p_manuf_specific_data = &manuf_data;
err_code = ble_advdata_encode(&advdata, m_adv_data.adv_data.p_data, &m_adv_data.adv_data.len);
APP_ERROR_CHECK(err_code);
// Set advertising parameters.
memset(&adv_params, 0, sizeof(adv_params));
adv_params.primary_phy = BLE_GAP_PHY_1MBPS;
adv_params.duration = APP_ADV_DURATION;
if(conn_status==true)
{
// adv_params.properties.type = BLE_GAP_ADV_TYPE_CONNECTABLE_SCANNABLE_UNDIRECTED;
adv_params.properties.type = BLE_GAP_ADV_TYPE_NONCONNECTABLE_SCANNABLE_UNDIRECTED;
}
else
{
adv_params.properties.type = BLE_GAP_ADV_TYPE_CONNECTABLE_SCANNABLE_UNDIRECTED;
}
adv_params.p_peer_addr = NULL;
adv_params.filter_policy = BLE_GAP_ADV_FP_ANY;
adv_params.interval = APP_ADV_INTERVAL;
err_code = sd_ble_gap_adv_set_configure(&m_adv_handle, &m_adv_data, &adv_params);
APP_ERROR_CHECK(err_code);
}
void timer_handler(nrf_timer_event_t event_type, void * p_context)
{
}
/**@brief Function for connect the Time event with
*
* @param[out] None
*/
void saadc_sampling_event_init(void)
{
ret_code_t err_code;
err_code = nrf_drv_ppi_init();
APP_ERROR_CHECK(err_code);
//Time config
nrf_drv_timer_config_t timer_cfg = NRF_DRV_TIMER_DEFAULT_CONFIG;
timer_cfg.bit_width = NRF_TIMER_BIT_WIDTH_32;
err_code = nrf_drv_timer_init(&m_timer, &timer_cfg, timer_handler);
APP_ERROR_CHECK(err_code);
/* setup m_timer for compare event every 1ms */
uint32_t ticks = nrf_drv_timer_ms_to_ticks(&m_timer, 1);
nrf_drv_timer_extended_compare(&m_timer,
NRF_TIMER_CC_CHANNEL0,
ticks,
NRF_TIMER_SHORT_COMPARE0_CLEAR_MASK,
false);
nrf_drv_timer_enable(&m_timer);
uint32_t timer_compare_event_addr = nrf_drv_timer_compare_event_address_get(&m_timer,
NRF_TIMER_CC_CHANNEL0);
uint32_t saadc_sample_task_addr = nrf_drv_saadc_sample_task_get();
/* setup ppi channel so that timer compare event is triggering sample task in SAADC */
err_code = nrf_drv_ppi_channel_alloc(&m_ppi_channel);
APP_ERROR_CHECK(err_code);
err_code = nrf_drv_ppi_channel_assign(m_ppi_channel,
timer_compare_event_addr,
saadc_sample_task_addr);
APP_ERROR_CHECK(err_code);
}
void saadc_sampling_event_enable(void)
{
ret_code_t err_code = nrf_drv_ppi_channel_enable(m_ppi_channel);
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)
{
ret_code_t err_code;
bsp_event_t startup_event;
// err_code = bsp_init(BSP_INIT_LEDS | BSP_INIT_BUTTONS, bsp_event_handler);
err_code = bsp_init(BSP_INIT_LEDS,bsp_event_handler);
APP_ERROR_CHECK(err_code);
//button init() no need
// 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 initializing the nrf log module.
*/
static void log_init(void)
{
ret_code_t err_code = NRF_LOG_INIT(NULL);
APP_ERROR_CHECK(err_code);
NRF_LOG_DEFAULT_BACKENDS_INIT();
}
/**@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_handle(void)
{
if (NRF_LOG_PROCESS() == false)
{
nrf_pwr_mgmt_run();
}
}
/**@brief Function for static passkey.
*/
static void set_static_passkey()
{
static ble_opt_t m_static_pin_option;
uint8_t passkey[] = STATIC_PASSKEY;
m_static_pin_option.gap_opt.passkey.p_passkey = &passkey[0];
uint32_t err_code = sd_ble_opt_set(BLE_GAP_OPT_PASSKEY, &m_static_pin_option);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for starting advertising.
*/
static void advertising_start(bool erase_bonds)
{
/*
if(Pro_level==2)
{
ret_code_t err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST_NOCONNECT);
APP_ERROR_CHECK(err_code);
}
else if(Pro_level==1)
{
ret_code_t err_code =ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST);
APP_ERROR_CHECK(err_code);
}
*/
ret_code_t err_code;
err_code = sd_ble_gap_adv_start(m_adv_handle, APP_BLE_CONN_CFG_TAG);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for get mac address.
*/
static void getMACaddress()
{
ble_gap_addr_t MAC_address;
sd_ble_gap_addr_get(&MAC_address);
// if(Pro_level==1)
// {
advert_str[0]=MAC_address.addr[5];
advert_str[1]=MAC_address.addr[4];
advert_str[2]=MAC_address.addr[3];
advert_str[3]=MAC_address.addr[2];
advert_str[4]=MAC_address.addr[1];
advert_str[5]=MAC_address.addr[0];
advert_str[6]=0x00;
advert_str[7]=0x00;
advert_str[8]=0x00;
advert_str[9]=0x00;
advert_str[10]=0x00;
advert_str[11]=0x00;
advert_str[12]=powerstatus;
/*
advert_str[13]=FW_version_val1;
advert_str[14]=FW_version_val2;
advert_str[15]=FW_version_val3;
*/
advert_str[13]=softver_value[2];
advert_str[14]=softver_value[1];
advert_str[15]=softver_value[0];
// }
}
/**@brief Function for dealing the BLE command .
*/
void BLE_cmd_read_send()
{
uint32_t err_code;
uint32_t write_data;
uint32_t verify_data;
// uint8_t Data1=0;
// uint8_t Data2=0;
// uint8_t Data3=0;
// uint8_t Data4=0;
uint16_t length = 0;
uint8_t SenddataArry[7] = {0x81,0XFF,0X11,0X11,0X11,0X11,0XED};
if(Rec_flag==true)
{
switch(AQS_Rev_Data[5])
{
case TestRead_SerialNum:
length=7;
break;
case TestRead_SoftwareVer:
length=7;
break;
default:
break;
}
do
{
//err_code = ble_nus_data_send(&m_nus, AQS_Send_Data.Data, &length, m_conn_handle);
// NRF_LOG_INFO("m_conn_handle%d\n",m_conn_handle);
err_code = ble_nus_data_send(&m_nus, SenddataArry, &length, m_conn_handle);
if ((err_code != NRF_ERROR_INVALID_STATE) &&
(err_code != NRF_ERROR_RESOURCES) &&
(err_code != NRF_ERROR_NOT_FOUND))
{
APP_ERROR_CHECK(err_code);
}
}while (err_code == NRF_ERROR_RESOURCES);
Rec_flag=false;
NRF_LOG_INFO("Send back the data to centrol board successfully.");
}
}
int main(void)
{
bool erase_bonds;
ret_code_t rc;
uint32_t err_code = NRF_LOG_INIT(NULL);
APP_ERROR_CHECK(err_code);
NRF_LOG_DEFAULT_BACKENDS_INIT();
ret_code_t ret_code = nrf_pwr_mgmt_init();
APP_ERROR_CHECK(ret_code);
// Initialize.
timers_init();
bsp_demo_init();
saadc_sampling_event_init();
saadc_sampling_event_enable();
// Start execution.
uart_init();
ble_stack_init();
set_static_passkey();
gap_params_init();
gatt_init();
getMACaddress();
services_init();
advertising_init();
conn_params_init();
peer_manager_init();
err_code = sd_ble_gap_tx_power_set(BLE_GAP_TX_POWER_ROLE_ADV, m_adv_handle,-8);
APP_ERROR_CHECK(err_code);
advertising_start(true);
NRF_LOG_INFO("AQS started.");
while (1)
{
BLE_cmd_read_send();
if(Timecount>1000)
{
advertising_update();
advertising_start(true);
Timecount=0;
}
idle_state_handle();
NRF_LOG_FLUSH();
}
}
/**
* @}
*/
The code for central
/**
* Copyright (c) 2016 - 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 <stdio.h>
#include <stdint.h>
#include <stdbool.h>
#include "nordic_common.h"
#include "app_error.h"
#include "app_uart.h"
#include "ble_db_discovery.h"
#include "app_timer.h"
#include "app_util.h"
#include "bsp_btn_ble.h"
#include "ble.h"
#include "ble_gap.h"
#include "ble_hci.h"
#include "nrf_sdh.h"
#include "nrf_sdh_ble.h"
#include "nrf_sdh_soc.h"
#include "ble_nus_c.h"
#include "nrf_ble_gatt.h"
#include "nrf_pwr_mgmt.h"
#include "nrf_ble_scan.h"
#include "nrf_delay.h"
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"
///////////Added for bonding//////////
#include "peer_manager.h"
#include "peer_manager_handler.h"
#define SEC_PARAM_BOND 1 /**< Perform bonding. */
#define SEC_PARAM_MITM 1 /**< Enable MITM protection */
#define SEC_PARAM_LESC 0 /**< LE Secure Connections not enabled. */
#define SEC_PARAM_KEYPRESS 0 /**< Keypress notifications not enabled. */
#define SEC_PARAM_IO_CAPABILITIES BLE_GAP_IO_CAPS_KEYBOARD_ONLY /**< Keyboard Only. */
#define SEC_PARAM_OOB 0 /**< Out Of Band data not available. */
#define SEC_PARAM_MIN_KEY_SIZE 7 /**< Minimum encryption key size. */
#define SEC_PARAM_MAX_KEY_SIZE 16 /**< Maximum encryption key size. */
//////////////Added for bonding///////
#define APP_BLE_CONN_CFG_TAG 1 /**< Tag that refers to the BLE stack configuration set with @ref sd_ble_cfg_set. The default tag is @ref BLE_CONN_CFG_TAG_DEFAULT. */
#define APP_BLE_OBSERVER_PRIO 3 /**< BLE observer priority of the application. There is no need to modify this value. */
#define UART_TX_BUF_SIZE 256 /**< UART TX buffer size. */
#define UART_RX_BUF_SIZE 256 /**< UART RX buffer size. */
#define NUS_SERVICE_UUID_TYPE BLE_UUID_TYPE_VENDOR_BEGIN /**< UUID type for the Nordic UART Service (vendor specific). */
#define ECHOBACK_BLE_UART_DATA 1 /**< Echo the UART data that is received over the Nordic UART Service (NUS) back to the sender. */
uint8_t data_array[BLE_NUS_MAX_DATA_LEN];
static char const m_target_periph_name[] = "CAAQS"; /**< Name of the device to try to **/
BLE_NUS_C_DEF(m_ble_nus_c); /**< BLE Nordic UART Service (NUS) client instance. */
NRF_BLE_GATT_DEF(m_gatt); /**< GATT module instance. */
BLE_DB_DISCOVERY_DEF(m_db_disc); /**< Database discovery module instance. */
NRF_BLE_SCAN_DEF(m_scan); /**< Scanning Module instance. */
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. */
/**@brief NUS UUID. */
static ble_uuid_t const m_nus_uuid =
{
.uuid = BLE_UUID_NUS_SERVICE,
.type = NUS_SERVICE_UUID_TYPE
};
////////////Added for bonding///////////
// Static passkey
#define STATIC_PASSKEY "123455"
static ble_opt_t m_static_pin_option;
uint8_t passkey[] = STATIC_PASSKEY;
static Re_connect_cont = 0;
uint8_t succeed_connect[8] = {0xED,0xFF,0xFF,0xFF,0xFF,0xA0,0x84};
uint8_t disconnect[8] = {0xED,0x00,0x00,0x00,0x00,0xA1,0X84};
////////////Added for bonding///////////
/**@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 only an example and is not meant for the final product. You need to analyze
* 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(0xDEADBEEF, line_num, p_file_name);
}
/**@brief Function for starting scanning. */
static void scan_start(void)
{
ret_code_t ret;
// ret = pm_peers_delete();
// APP_ERROR_CHECK(ret);
ret = nrf_ble_scan_start(&m_scan);
APP_ERROR_CHECK(ret);
ret = bsp_indication_set(BSP_INDICATE_SCANNING);
APP_ERROR_CHECK(ret);
}
/**@brief Function for handling Scanning Module events.
*/
static void scan_evt_handler(scan_evt_t const * p_scan_evt)
{
ret_code_t err_code;
switch(p_scan_evt->scan_evt_id)
{
case NRF_BLE_SCAN_EVT_CONNECTING_ERROR:
{
NRF_LOG_INFO("NRF_BLE_SCAN_EVT_CONNECTING_ERROR");
err_code = p_scan_evt->params.connecting_err.err_code;
APP_ERROR_CHECK(err_code);
} break;
case NRF_BLE_SCAN_EVT_CONNECTED:
{
ble_gap_evt_connected_t const * p_connected =
p_scan_evt->params.connected.p_connected;
// Scan is automatically stopped by the connection.
NRF_LOG_INFO("Connecting to target %02x%02x%02x%02x%02x%02x",
p_connected->peer_addr.addr[0],
p_connected->peer_addr.addr[1],
p_connected->peer_addr.addr[2],
p_connected->peer_addr.addr[3],
p_connected->peer_addr.addr[4],
p_connected->peer_addr.addr[5]
);
} break;
case NRF_BLE_SCAN_EVT_SCAN_TIMEOUT:
{
NRF_LOG_INFO("Scan timed out.");
scan_start();
} break;
case NRF_BLE_SCAN_EVT_FILTER_MATCH:
{
NRF_LOG_INFO("NRF_BLE_SCAN_EVT_FILTER_MATCH");
}break;
case NRF_BLE_SCAN_EVT_WHITELIST_REQUEST:
{
NRF_LOG_INFO("NRF_BLE_SCAN_EVT_WHITELIST_REQUEST");
}break;
/*
case NRF_BLE_SCAN_EVT_NOT_FOUND:
{
NRF_LOG_INFO("NRF_BLE_SCAN_EVT_NOT_FOUND");
}break;
*/
case NRF_BLE_SCAN_EVT_SCAN_REQ_REPORT:
{
NRF_LOG_INFO("NRF_BLE_SCAN_EVT_SCAN_REQ_REPORT");
}break;
default:
break;
}
}
/**@brief Function for initializing the scanning and setting the filters.
*/
static void scan_init(void)
{
ret_code_t err_code;
nrf_ble_scan_init_t init_scan;
//mac address
static char const test_periph_addr[] = {0x4B, 0xF2, 0x89, 0x7E, 0x7F, 0xE0};
memset(&init_scan, 0, sizeof(init_scan));
init_scan.connect_if_match = true;
init_scan.conn_cfg_tag = APP_BLE_CONN_CFG_TAG;
err_code = nrf_ble_scan_init(&m_scan, &init_scan, scan_evt_handler);
APP_ERROR_CHECK(err_code);
err_code = nrf_ble_scan_filter_set(&m_scan,SCAN_NAME_FILTER,m_target_periph_name);
APP_ERROR_CHECK(err_code);
err_code = nrf_ble_scan_filters_enable(&m_scan, NRF_BLE_SCAN_NAME_FILTER, false);
APP_ERROR_CHECK(err_code);
// 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);
// err_code = nrf_ble_scan_filter_set(&m_scan,SCAN_ADDR_FILTER,test_periph_addr);
// APP_ERROR_CHECK(err_code);
// err_code = nrf_ble_scan_filters_enable(&m_scan, NRF_BLE_SCAN_ADDR_FILTER, false);
// APP_ERROR_CHECK(err_code);
}
/**@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 (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);
}
}
//CRC value = 0x07
uint8_t crc_8( uint8_t* data_in, uint16_t data_len)
{
uint8_t crc_poly = 0x07;
uint8_t crc=0;
uint8_t result=0;
// https://blog.csdn.net/q1024165872/article/details/85274228
for(int i = 0; i < data_len; i++)
{
crc^=data_in[i];
for(int a = 0; a<8;a++)
{
if (crc & 0x80) //
{
crc <<= 1;
crc ^= crc_poly;
}
else
{
//
crc <<= 1;
}
}
}
return crc;
}
/**@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
static uint16_t index = 0;
uint32_t ret_val;
uint8_t verifycode=0;;
switch (p_event->evt_type)
{
/**@snippet [Handling data from UART] */
case APP_UART_DATA_READY:
UNUSED_VARIABLE(app_uart_get(&data_array[index]));
index++;
// printf("%d\n", index);
// printf("%d\n", data_array[1]);
if(index==7)
{
if(m_ble_nus_c.conn_handle != BLE_CONN_HANDLE_INVALID)
{
Re_connect_cont++;
}
// NRF_LOG_DEBUG("Ready to send data over BLE NUS");
NRF_LOG_INFO("send data over BLE NUS");
// NRF_LOG_INFO("Send data 7");
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;
}
/*
if(index==8)
{
NRF_LOG_DEBUG("Ready to send data over BLE NUS");
NRF_LOG_INFO("Send data");
NRF_LOG_HEXDUMP_DEBUG(data_array, index);
verifycode=crc_8(data_array, 6);
if(verifycode==data_array[6])
{
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;
}
}
if(index==12)
{
NRF_LOG_DEBUG("Ready to send data over BLE NUS");
NRF_LOG_INFO("Send data 12");
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);
/////////Added for bonding////////
err_code = pm_conn_secure(p_ble_nus_evt->conn_handle, false);
if (err_code != NRF_ERROR_BUSY)
{
APP_ERROR_CHECK(err_code);
}
/////////Added for bonding////////
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.");
for (uint8_t i = 0; i < 7; i++)
{
do
{
err_code = app_uart_put(succeed_connect[i]);
if ((err_code != NRF_SUCCESS) && (err_code != NRF_ERROR_BUSY))
{
NRF_LOG_ERROR("app_uart_put failed for index 0x%04x.", i);
APP_ERROR_CHECK(err_code);
}
} while (err_code == NRF_ERROR_BUSY);
}
break;
case BLE_NUS_C_EVT_NUS_TX_EVT:
NRF_LOG_INFO("Recive the data from BLE");
Re_connect_cont=0;
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.");
// err_code = pm_peers_delete();
// APP_ERROR_CHECK(err_code);
scan_start();
break;
}
}
/**@snippet [Handling events from the ble_nus_c module] */
/**
* @brief Function for handling shutdown events.
*
* @param[in] event Shutdown type.
*/
static bool shutdown_handler(nrf_pwr_mgmt_evt_t event)
{
ret_code_t err_code;
err_code = bsp_indication_set(BSP_INDICATE_IDLE);
APP_ERROR_CHECK(err_code);
switch (event)
{
case NRF_PWR_MGMT_EVT_PREPARE_WAKEUP:
// Prepare wakeup buttons.
err_code = bsp_btn_ble_sleep_mode_prepare();
APP_ERROR_CHECK(err_code);
break;
default:
break;
}
return true;
}
NRF_PWR_MGMT_HANDLER_REGISTER(shutdown_handler, APP_SHUTDOWN_HANDLER_PRIORITY);
/**@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)
{
ret_code_t err_code;
ble_gap_evt_t const * p_gap_evt = &p_ble_evt->evt.gap_evt;
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
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);
break;
case BLE_GAP_EVT_DISCONNECTED:
NRF_LOG_INFO("Disconnected. conn_handle: 0x%x, reason: 0x%x",
p_gap_evt->conn_handle,
p_gap_evt->params.disconnected.reason);
for (uint8_t i = 0; i < 7; i++)
{
do
{
err_code = app_uart_put(disconnect[i]);
if ((err_code != NRF_SUCCESS) && (err_code != NRF_ERROR_BUSY))
{
NRF_LOG_ERROR("app_uart_put failed for index 0x%04x.", i);
APP_ERROR_CHECK(err_code);
}
} while (err_code == NRF_ERROR_BUSY);
}
break;
case BLE_GAP_EVT_TIMEOUT:
if (p_gap_evt->params.timeout.src == BLE_GAP_TIMEOUT_SRC_CONN)
{
NRF_LOG_INFO("Connection Request timed out.");
}
break;
/////////Added for bonding///////////
case BLE_GAP_EVT_AUTH_KEY_REQUEST:
err_code = sd_ble_gap_auth_key_reply(p_gap_evt->conn_handle, BLE_GAP_AUTH_KEY_TYPE_PASSKEY, &passkey[0]);
asm("nop");
APP_ERROR_CHECK(err_code);
break;
/////////Added for bonding///////////
/////////Remove for bonding///////////
/* 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;*/
/////////Remove for bonding///////////
case BLE_GAP_EVT_CONN_PARAM_UPDATE_REQUEST:
// Accepting parameters requested by 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_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;
case BLE_GATTC_EVT_TIMEOUT:
// Disconnect on GATT Client timeout event.
NRF_LOG_DEBUG("GATT Client Timeout.");
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 timeout event.
NRF_LOG_DEBUG("GATT Server Timeout.");
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;
default:
break;
}
}
/**@brief Function for initializing the BLE stack.
*
* @details Initializes the SoftDevice and the BLE event interrupt.
*/
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);
}
uint16_t crc_16_ccitt(uint16_t crc, uint8_t * data_in, uint16_t data_len)
{
uint16_t i;
for(i = 0; i < data_len; i++)
{
crc = (unsigned char)(crc >> 8) | (crc << 8);
crc ^= data_in[i];
crc ^= (unsigned char)(crc & 0xff) >> 4;
crc ^= (crc << 8) << 4;
crc ^= ((crc & 0xff) << 4) << 1;
}
return crc;
}
/**@brief Function for handling events from the GATT library. */
void gatt_evt_handler(nrf_ble_gatt_t * p_gatt, nrf_ble_gatt_evt_t const * p_evt)
{
if (p_evt->evt_id == NRF_BLE_GATT_EVT_ATT_MTU_UPDATED)
{
NRF_LOG_INFO("ATT MTU exchange completed.");
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);
}
}
/**@brief Function for initializing the GATT library. */
void gatt_init(void)
{
ret_code_t err_code;
err_code = nrf_ble_gatt_init(&m_gatt, gatt_evt_handler);
APP_ERROR_CHECK(err_code);
err_code = nrf_ble_gatt_att_mtu_central_set(&m_gatt, NRF_SDH_BLE_GATT_MAX_MTU_SIZE);
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)
{
ret_code_t err_code;
switch (event)
{
case BSP_EVENT_SLEEP:
nrf_pwr_mgmt_shutdown(NRF_PWR_MGMT_SHUTDOWN_GOTO_SYSOFF);
break;
case BSP_EVENT_DISCONNECT:
err_code = sd_ble_gap_disconnect(m_ble_nus_c.conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
}
break;
default:
break;
}
}
/**@brief Function for initializing the UART. */
static void uart_init(void)
{
ret_code_t err_code;
app_uart_comm_params_t const comm_params =
{
.rx_pin_no = RX_PIN_NUMBER,
.tx_pin_no = TX_PIN_NUMBER,
.rts_pin_no = RTS_PIN_NUMBER,
.cts_pin_no = CTS_PIN_NUMBER,
.flow_control = APP_UART_FLOW_CONTROL_DISABLED,
.use_parity = false,
.baud_rate = UART_BAUDRATE_BAUDRATE_Baud115200
};
APP_UART_FIFO_INIT(&comm_params,
UART_RX_BUF_SIZE,
UART_TX_BUF_SIZE,
uart_event_handle,
APP_IRQ_PRIORITY_LOWEST,
err_code);
APP_ERROR_CHECK(err_code);
}
/**@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);
}
///////////Added for bonding///////////
/**@brief Function for handling Peer Manager events.
*
* @param[in] p_evt Peer Manager event.
*/
static void pm_evt_handler(pm_evt_t const * p_evt)
{
pm_handler_on_pm_evt(p_evt);
pm_handler_disconnect_on_sec_failure(p_evt);
pm_handler_flash_clean(p_evt);
NRF_LOG_INFO("peer_id %d\n", p_evt->peer_id);
switch (p_evt->evt_id)
{
case PM_EVT_PEERS_DELETE_SUCCEEDED:
scan_start();
break;
case PM_EVT_CONN_SEC_SUCCEEDED:
NRF_LOG_INFO("pairing succeed.");
break;
case PM_EVT_CONN_SEC_FAILED:
NRF_LOG_INFO("PM_EVT_CONN_SEC_FAILED");
break;
case PM_EVT_STORAGE_FULL:
NRF_LOG_INFO("PM_EVT_STORAGE_FULL");
break;
case PM_EVT_ERROR_UNEXPECTED:
NRF_LOG_INFO("PM_EVT_ERROR_UNEXPECTED");
break;
case PM_EVT_CONN_SEC_CONFIG_REQ:
NRF_LOG_INFO("PM_EVT_CONN_SEC_CONFIG_REQ");
break;
case PM_EVT_CONN_SEC_PARAMS_REQ:
NRF_LOG_INFO("PM_EVT_CONN_SEC_PARAMS_REQ");
break;
default:
break;
}
}
/////////////Added for bonding/////////////
//////////////Added for bonding//////////////
/**@brief Function for initializing the Peer Manager.
*
* @param[in] erase_bonds Indicates whether the bonding information must be cleared from
* persistent storage during the initialization of the Peer Manager.
*/
static void peer_manager_init()
{
ret_code_t err_code;
ble_gap_sec_params_t sec_param;
err_code = pm_init();
APP_ERROR_CHECK(err_code);
err_code = pm_register(pm_evt_handler);
APP_ERROR_CHECK(err_code);
memset(&sec_param, 0, sizeof(ble_gap_sec_params_t));
// Security parameters to be used for all security procedures.
sec_param.bond = SEC_PARAM_BOND;
sec_param.mitm = SEC_PARAM_MITM;
sec_param.lesc = SEC_PARAM_LESC;
sec_param.keypress = SEC_PARAM_KEYPRESS;
sec_param.io_caps = SEC_PARAM_IO_CAPABILITIES;
sec_param.oob = SEC_PARAM_OOB;
sec_param.min_key_size = SEC_PARAM_MIN_KEY_SIZE;
sec_param.max_key_size = SEC_PARAM_MAX_KEY_SIZE;
sec_param.kdist_own.enc = 1;
sec_param.kdist_own.id = 1;
sec_param.kdist_peer.enc = 1;
sec_param.kdist_peer.id = 1;
err_code = pm_sec_params_set(&sec_param);
APP_ERROR_CHECK(err_code);
}
//////////////Added for bonding//////////////
/**@brief Function for initializing buttons and leds. */
static void buttons_leds_init(void)
{
ret_code_t err_code;
bsp_event_t startup_event;
err_code = bsp_init(BSP_INIT_LEDS, bsp_event_handler);
APP_ERROR_CHECK(err_code);
err_code = bsp_btn_ble_init(NULL, &startup_event);
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);
}
/**@brief Function for initializing the nrf log module. */
static void log_init(void)
{
ret_code_t err_code = NRF_LOG_INIT(NULL);
APP_ERROR_CHECK(err_code);
NRF_LOG_DEFAULT_BACKENDS_INIT();
}
/**@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 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);
}
/**@brief Function for handling the idle state (main loop).
*
* @details Handles any pending log operations, then sleeps until the next event occurs.
*/
static void idle_state_handle(void)
{
if (NRF_LOG_PROCESS() == false)
{
nrf_pwr_mgmt_run();
}
}
int main(void)
{
// Initialize.
uint16_t test_val =0;
log_init();
timer_init();
buttons_leds_init();
db_discovery_init();
power_management_init();
ble_stack_init();
gatt_init();
nus_c_init();
scan_init();
///////Added for bonding/////////////
peer_manager_init();
///////Added for bonding/////////////
// uint16_t crc_16_ccitt(uint16_t crc, uint8_t * data_in, uint16_t data_len)
// uint8_t testarry[8] = {0x01,0x02,0x16,0x11,0x21,0x22,0x13,0x14};
// test_val=crc_8(testarry,8);
// test_val= crc_16_ccitt(0xFFFF,testarry,8);
// Start execution.
// printf("crc value%d",test_val);
printf("BLE UART central example started.\r\n");
NRF_LOG_INFO("BLE UART central example started.");
ret_code_t err_code;
NRF_LOG_INFO("Erase bonds!");
err_code = pm_peers_delete();
APP_ERROR_CHECK(err_code);
nrf_delay_ms(100);
uart_init();
scan_start();
// Enter main loop.
for (;;)
{
if(Re_connect_cont>3)
{
err_code = sd_ble_gap_disconnect(m_ble_nus_c.conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
}
Re_connect_cont=0;
}
idle_state_handle();
}
}
