Hi,
I am working on nrf52sdk devkit. I am using max30208 temp. sensor. I configured one project twi_sensor and it's working properly. but when I merged this code into ble_app_hts. I am not getting data from TWI comm.
/** @file
*
* @defgroup ble_sdk_app_hts_main main.c
* @{
* @ingroup ble_sdk_app_hts
* @brief Health Thermometer Service Sample Application main file.
*
* This file contains the source code for a sample application using the Health Thermometer service
* It also includes the sample code for Battery and Device Information services.
* This application uses the @ref srvlib_conn_params module.
*/
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include "nrf_delay.h"
#include "app_util_platform.h"
#include "boards.h"
#include "nordic_common.h"
#include "nrf_drv_twi.h"
#include "nrf.h"
#include "app_error.h"
#include "ble.h"
#include "ble_err.h"
#include "ble_hci.h"
#include "ble_srv_common.h"
#include "ble_advdata.h"
#include "ble_advertising.h"
#include "ble_bas.h"
#include "ble_hts.h"
#include "ble_dis.h"
#include "ble_conn_params.h"
#include "sensorsim.h"
#include "nrf_sdh.h"
#include "nrf_sdh_soc.h"
#include "nrf_sdh_ble.h"
#include "app_timer.h"
#include "peer_manager.h"
#include "peer_manager_handler.h"
#include "bsp_btn_ble.h"
#include "fds.h"
#include "ble_conn_state.h"
#include "nrf_ble_gatt.h"
#include "nrf_ble_qwr.h"
#include "nrf_pwr_mgmt.h"
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"
//variables define
#include "var_def.h"
static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID; /**< Handle of the current connection. */
static bool m_hts_meas_ind_conf_pending = false; /**< Flag to keep track of when an indication confirmation is pending. */
static sensorsim_cfg_t m_battery_sim_cfg; /**< Battery Level sensor simulator configuration. */
static sensorsim_state_t m_battery_sim_state; /**< Battery Level sensor simulator state. */
static sensorsim_cfg_t m_temp_celcius_sim_cfg; /**< Temperature simulator configuration. */
static sensorsim_state_t m_temp_celcius_sim_state; /**< Temperature simulator state. */
/* Indicates if operation on TWI has ended. */
static volatile bool m_xfer_done = false;
static volatile bool trigger_temp =false;
/* TWI instance ID. */
#define TWI_INSTANCE_ID 0
/* TWI instance. */
static const nrf_drv_twi_t m_twi = NRF_DRV_TWI_INSTANCE(TWI_INSTANCE_ID);
double Temp_sample;
static ble_uuid_t m_adv_uuids[] = /**< Universally unique service identifiers. */
{
{BLE_UUID_HEALTH_THERMOMETER_SERVICE, BLE_UUID_TYPE_BLE},
{BLE_UUID_BATTERY_SERVICE, BLE_UUID_TYPE_BLE},
{BLE_UUID_DEVICE_INFORMATION_SERVICE, BLE_UUID_TYPE_BLE}
};
static void advertising_start(bool erase_bonds);
static void temperature_measurement_send(void);
void HTM_application_timers_start(void);
void OT07_write_register(char slave_add, char reg_add, char *bytes, int n){
char data[16];
ret_code_t err_code;
data[0] = reg_add;
for(int i=1;i<=n;i++){
data[i] = bytes[i-1];
}
err_code = nrf_drv_twi_tx(&m_twi, slave_add, data, n+1, false);
APP_ERROR_CHECK(err_code);
while (m_xfer_done == false);
//NRF_LOG_INFO("wr[%02X %02X]\r\n", data[1], data[2]); //debug
}
void OT07_read_register( char slave_add,char reg_add, char *bytes, int n){
ret_code_t err_code;
err_code = nrf_drv_twi_tx(&m_twi, slave_add, ®_add, 1, false);
APP_ERROR_CHECK(err_code);
while (m_xfer_done == false);
err_code = nrf_drv_twi_rx(&m_twi, slave_add, bytes, n);
APP_ERROR_CHECK(err_code);
while (m_xfer_done == false);
}
void convert_temperature(char slave_add){ // set convert bit to start conversion
char data[2];
//read ADC_SETUP register 0x14
// OT07_read_register( OT07_ADC_SETUP,data,2);
//nrf_delay_ms(20);
data[0] = data[0]|0xC1;
data[1] = data[1];
//mask convert register value with 0x01 and write back register 0x14
OT07_write_register( slave_add,OT07_ADC_SETUP, data,2);
}
/**
* @brief Function for handling data from temperature sensor.
*
* @param[in] temp Temperature in Celsius degrees read from sensor.
*/
__STATIC_INLINE void data_handler(double temp)
{
NRF_LOG_INFO("Temperature: int %d Celsius degrees.",temp);
}
/**
* @brief TWI events handler.
*/
void twi_handler(nrf_drv_twi_evt_t const * p_event, void * p_context)
{
switch (p_event->type)
{
case NRF_DRV_TWI_EVT_DONE:
if (p_event->xfer_desc.type == NRF_DRV_TWI_XFER_RX)
{
data_handler(Temp_sample);
NRF_LOG_INFO("data sent event");
}
m_xfer_done = true;
break;
default:
break;
}
}
/**
* @brief UART initialization.
*/
void twi_init (void)
{
ret_code_t err_code;
const nrf_drv_twi_config_t twi_max30208_config = {
.scl = ARDUINO_SCL_PIN,
.sda = ARDUINO_SDA_PIN,
.frequency = NRF_DRV_TWI_FREQ_400K,
.interrupt_priority = APP_IRQ_PRIORITY_HIGH,
.clear_bus_init = false
};
err_code = nrf_drv_twi_init(&m_twi, &twi_max30208_config, twi_handler, NULL);
APP_ERROR_CHECK(err_code);
nrf_drv_twi_enable(&m_twi);
}
/**
* @brief Function for reading data from temperature sensor.
*/
void read_sensor_data(char slave_add)
{
convert_temperature(slave_add);
nrf_delay_ms(20);
m_xfer_done = false;
char data[2];
uint16_t count = 0;
ret_code_t err_code;
uint8_t reg[1] = {max30208_read_data};
err_code = nrf_drv_twi_tx(&m_twi, slave_add, reg, 1, false);
APP_ERROR_CHECK(err_code);
while (m_xfer_done == false);
err_code = nrf_drv_twi_rx(&m_twi, slave_add, data, 2);
APP_ERROR_CHECK(err_code);
while (m_xfer_done == false);
//calculate temperture from data
count = (uint16_t)(data[0]*256 + data[1]);
NRF_LOG_INFO("wr[%02X %02X]\r\n", data[0], data[1]);
NRF_LOG_INFO("Temperature data: count %d ",count);
if (count >= 32768)
{count = 65536 - count;}
NRF_LOG_INFO("Temperature data: count %d ",count);
Temp_sample = (double)(count * 0.005);
NRF_LOG_INFO("Temperature data: debug %d,%d ",count, Temp_sample);
}
/**
* @brief Function for setting active mode on MMA7660 accelerometer.
*/
void max30208_setmode(char slave_add)
{
ret_code_t err_code;
/* Writing to LM75B_REG_CONF "0" set temperature sensor in NORMAL mode. */
uint8_t reg[2] = {max30208_config, NORMAL_MODE};
err_code = nrf_drv_twi_tx(&m_twi, slave_add, reg, sizeof(reg), false);
APP_ERROR_CHECK(err_code);
while (m_xfer_done == false);
}
/**@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 handling Service 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 service_error_handler(uint32_t nrf_error)
{
APP_ERROR_HANDLER(nrf_error);
}
/**@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;
bool is_indication_enabled;
pm_handler_on_pm_evt(p_evt);
pm_handler_flash_clean(p_evt);
switch (p_evt->evt_id)
{
case PM_EVT_CONN_SEC_SUCCEEDED:
// Send a single temperature measurement if indication is enabled.
// NOTE: For this to work, make sure ble_hts_on_ble_evt() is called before
// pm_evt_handler() in ble_evt_dispatch().
err_code = ble_hts_is_indication_enabled(&m_hts, &is_indication_enabled);
APP_ERROR_CHECK(err_code);
if (is_indication_enabled)
{
//temperature_measurement_send();
HTM_application_timers_start();
}
break;
case PM_EVT_PEERS_DELETE_SUCCEEDED:
advertising_start(false);
break;
default:
break;
}
}
/**@brief Function for performing a battery measurement, and update the Battery Level characteristic in the Battery Service.
*/
static void battery_level_update(void)
{
ret_code_t err_code;
uint8_t battery_level;
battery_level = (uint8_t)sensorsim_measure(&m_battery_sim_state, &m_battery_sim_cfg);
err_code = ble_bas_battery_level_update(&m_bas, battery_level, BLE_CONN_HANDLE_ALL);
if ((err_code != NRF_SUCCESS) &&
(err_code != NRF_ERROR_INVALID_STATE) &&
(err_code != NRF_ERROR_RESOURCES) &&
(err_code != NRF_ERROR_BUSY) &&
(err_code != BLE_ERROR_GATTS_SYS_ATTR_MISSING)
)
{
APP_ERROR_HANDLER(err_code);
}
}
/**@brief Function for handling the Battery measurement timer timeout.
*
* @details This function will be called each time the battery level measurement timer expires.
*
* @param[in] p_context Pointer used for passing some arbitrary information (context) from the
* app_start_timer() call to the timeout handler.
*/
void battery_level_meas_timeout_handler(void * p_context)
{
UNUSED_PARAMETER(p_context);
battery_level_update();
}
void htm_timeout_handler(void * p_context)
{
UNUSED_PARAMETER(p_context);
temperature_measurement_send();
}
/**@brief Function for populating simulated health thermometer measurement.
*/
static void hts_sim_measurement(ble_hts_meas_t * p_meas)
{
static ble_date_time_t time_stamp = { 2012, 12, 5, 11, 50, 0 };
uint32_t celciusX100;
p_meas->temp_in_fahr_units = false;
p_meas->time_stamp_present = true;
p_meas->temp_type_present = (TEMP_TYPE_AS_CHARACTERISTIC ? false : true);
celciusX100 = sensorsim_measure(&m_temp_celcius_sim_state, &m_temp_celcius_sim_cfg);
p_meas->temp_in_celcius.exponent = -2;
p_meas->temp_in_celcius.mantissa = celciusX100;
p_meas->temp_in_fahr.exponent = -2;
p_meas->temp_in_fahr.mantissa = (32 * 100) + ((celciusX100 * 9) / 5);
p_meas->time_stamp = time_stamp;
p_meas->temp_type = BLE_HTS_TEMP_TYPE_FINGER;
// update simulated time stamp
time_stamp.seconds += 27;
if (time_stamp.seconds > 59)
{
time_stamp.seconds -= 60;
time_stamp.minutes++;
if (time_stamp.minutes > 59)
{
time_stamp.minutes = 0;
}
}
}
/**@brief Function for the Timer initialization.
*
* @details Initializes the timer module. This creates and starts application timers.
*/
void timers_init(void)
{
ret_code_t err_code;
// Initialize timer module.
err_code = app_timer_init();
APP_ERROR_CHECK(err_code);
// Create timers.
err_code = app_timer_create(&m_battery_timer_id,
APP_TIMER_MODE_REPEATED,
battery_level_meas_timeout_handler);
APP_ERROR_CHECK(err_code);
err_code = app_timer_create(&m_htm_timer_id,
APP_TIMER_MODE_REPEATED,
htm_timeout_handler);
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);
err_code = sd_ble_gap_appearance_set(BLE_APPEARANCE_GENERIC_THERMOMETER);
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 initializing the GATT module.
*/
static void gatt_init(void)
{
ret_code_t err_code = nrf_ble_gatt_init(&m_gatt, NULL);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for simulating and sending one Temperature Measurement.
*/
static void temperature_measurement_send(void)
{
ble_hts_meas_t simulated_meas;
ret_code_t err_code;
if (!m_hts_meas_ind_conf_pending)
{
hts_sim_measurement(&simulated_meas);
err_code = ble_hts_measurement_send(&m_hts, &simulated_meas);
switch (err_code)
{
case NRF_SUCCESS:
// Measurement was successfully sent, wait for confirmation.
m_hts_meas_ind_conf_pending = true;
break;
case NRF_ERROR_INVALID_STATE:
// Ignore error.
break;
default:
APP_ERROR_HANDLER(err_code);
break;
}
}
}
/**@brief Function for handling the Health Thermometer Service events.
*
* @details This function will be called for all Health Thermometer Service events which are passed
* to the application.
*
* @param[in] p_hts Health Thermometer Service structure.
* @param[in] p_evt Event received from the Health Thermometer Service.
*/
static void on_hts_evt(ble_hts_t * p_hts, ble_hts_evt_t * p_evt)
{
switch (p_evt->evt_type)
{
case BLE_HTS_EVT_INDICATION_ENABLED:
// Indication has been enabled, send a single temperature measurement
// temperature_measurement_send();
break;
case BLE_HTS_EVT_INDICATION_CONFIRMED:
m_hts_meas_ind_conf_pending = false;
break;
default:
// No implementation needed.
break;
}
}
/**@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.
*
* @details Initialize the Health Thermometer, Battery and Device Information services.
*/
static void services_init(void)
{
ret_code_t err_code;
ble_hts_init_t hts_init;
ble_bas_init_t bas_init;
ble_dis_init_t dis_init;
nrf_ble_qwr_init_t qwr_init = {0};
ble_dis_sys_id_t sys_id;
// 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 Health Thermometer Service
memset(&hts_init, 0, sizeof(hts_init));
hts_init.evt_handler = on_hts_evt;
hts_init.p_gatt_queue = &m_ble_gatt_queue;
hts_init.error_handler = service_error_handler;
hts_init.temp_type_as_characteristic = TEMP_TYPE_AS_CHARACTERISTIC;
hts_init.temp_type = BLE_HTS_TEMP_TYPE_BODY;
// Here the sec level for the Health Thermometer Service can be changed/increased.
hts_init.ht_meas_cccd_wr_sec = SEC_JUST_WORKS;
hts_init.ht_type_rd_sec = SEC_OPEN;
err_code = ble_hts_init(&m_hts, &hts_init);
APP_ERROR_CHECK(err_code);
// Initialize Battery Service.
memset(&bas_init, 0, sizeof(bas_init));
// Here the sec level for the Battery Service can be changed/increased.
bas_init.bl_rd_sec = SEC_OPEN;
bas_init.bl_cccd_wr_sec = SEC_OPEN;
bas_init.bl_report_rd_sec = SEC_OPEN;
bas_init.evt_handler = NULL;
bas_init.support_notification = true;
bas_init.p_report_ref = NULL;
bas_init.initial_batt_level = 100;
err_code = ble_bas_init(&m_bas, &bas_init);
APP_ERROR_CHECK(err_code);
// Initialize Device Information Service.
memset(&dis_init, 0, sizeof(dis_init));
ble_srv_ascii_to_utf8(&dis_init.manufact_name_str, MANUFACTURER_NAME);
ble_srv_ascii_to_utf8(&dis_init.model_num_str, MODEL_NUM);
sys_id.manufacturer_id = MANUFACTURER_ID;
sys_id.organizationally_unique_id = ORG_UNIQUE_ID;
dis_init.p_sys_id = &sys_id;
dis_init.dis_char_rd_sec = SEC_OPEN;
err_code = ble_dis_init(&dis_init);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing the sensor simulators.
*/
static void sensor_simulator_init(void)
{
m_battery_sim_cfg.min = MIN_BATTERY_LEVEL;
m_battery_sim_cfg.max = MAX_BATTERY_LEVEL;
m_battery_sim_cfg.incr = BATTERY_LEVEL_INCREMENT;
m_battery_sim_cfg.start_at_max = true;
sensorsim_init(&m_battery_sim_state, &m_battery_sim_cfg);
// Temperature is in celcius (it is multiplied by 100 to avoid floating point arithmetic).
m_temp_celcius_sim_cfg.min = MIN_CELCIUS_DEGREES;
m_temp_celcius_sim_cfg.max = MAX_CELCIUS_DEGRESS;
m_temp_celcius_sim_cfg.incr = CELCIUS_DEGREES_INCREMENT;
m_temp_celcius_sim_cfg.start_at_max = false;
sensorsim_init(&m_temp_celcius_sim_state, &m_temp_celcius_sim_cfg);
}
/**@brief Function for starting application timers.
*/
static void application_timers_start(void)
{
ret_code_t err_code;
// Start application timers.
err_code = app_timer_start(m_battery_timer_id, BATTERY_LEVEL_MEAS_INTERVAL, NULL);
APP_ERROR_CHECK(err_code);
}
void HTM_application_timers_start(void)
{
ret_code_t err_code;
// Start application timers.
err_code = app_timer_start(m_htm_timer_id, HTM_temp_timer, NULL);
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;
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)
{
uint32_t err_code = NRF_SUCCESS;
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
NRF_LOG_INFO("Connected.");
err_code = bsp_indication_set(BSP_INDICATE_CONNECTED);
APP_ERROR_CHECK(err_code);
m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
err_code = nrf_ble_qwr_conn_handle_assign(&m_qwr, m_conn_handle);
APP_ERROR_CHECK(err_code);
break;
case BLE_GAP_EVT_DISCONNECTED:
NRF_LOG_INFO("Disconnected.");
m_conn_handle = BLE_CONN_HANDLE_INVALID;
m_hts_meas_ind_conf_pending = 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_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:
// 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 handling events from the BSP module.
*
* @param[in] event Event generated by button press.
*/
static void bsp_event_handler(bsp_event_t event)
{
ret_code_t err_code;
switch (event)
{
case BSP_EVENT_SLEEP:
sleep_mode_enter();
break;
case BSP_EVENT_DISCONNECT:
err_code = sd_ble_gap_disconnect(m_conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
}
break;
case BSP_EVENT_WHITELIST_OFF:
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;
case BSP_EVENT_KEY_0:
if (m_conn_handle != BLE_CONN_HANDLE_INVALID)
{
trigger_temp=true;
}
break;
default:
break;
}
}
/**@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 initializing the Advertising functionality.
*
* @details Encodes the required advertising data and passes it to the stack.
* Also builds a structure to be passed to the stack when starting advertising.
*/
static 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 = APP_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 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);
APP_ERROR_CHECK(err_code);
err_code = bsp_btn_ble_init(NULL, &startup_event);
APP_ERROR_CHECK(err_code);
*p_erase_bonds = (startup_event == BSP_EVENT_CLEAR_BONDING_DATA);
}
/**@brief Function for 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 starting advertising.
*/
static void advertising_start(bool erase_bonds)
{
if (erase_bonds == true)
{
delete_bonds();
// Advertising is started by PM_EVT_PEERS_DELETE_SUCCEEDED event.
}
else
{
uint32_t err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST);
APP_ERROR_CHECK(err_code);
}
}
/**@brief Function for application main entry.
*/
int main(void)
{
bool erase_bonds;
log_init();
NRF_LOG_INFO("\r\nTWI sensor example started.");
NRF_LOG_FLUSH();
twi_init();
max30208_setmode(max30208_slave_add);
timers_init();
buttons_leds_init(&erase_bonds);
power_management_init();
ble_stack_init();
gap_params_init();
gatt_init();
advertising_init();
services_init();
sensor_simulator_init();
conn_params_init();
peer_manager_init();
// Start execution.
NRF_LOG_INFO("Health Thermometer example started.");
application_timers_start();
advertising_start(erase_bonds);
while (true)
{
if(trigger_temp)
{
nrf_delay_ms(500);
read_sensor_data(max30208_slave_add);
NRF_LOG_FLUSH();
trigger_temp=false;
}
else
{
idle_state_handle();
}
}
}
/**
* @}
*/
