Hi,
I need to read a pulse signal with the nRF52840 .
I tried to use the timers but it seems to go in conflict with the I2C that I use to communicate with another device. In this project i use also the BLE and the UART.
H.ow can I do to read this pulse signal?
I tried also a put a counter with a delay (I used the nrf_delay_us function) but it's not precise.
Please, can you help me?
I have initialize the uart in this way :
NRF_SERIAL_DRV_UART_CONFIG_DEF ( m_uart0_drv_config ,
RX_PIN_UART_BADGE , TX_PIN_UART_BADGE ,
RTS_PIN_NUMBER , CTS_PIN_NUMBER ,
NRF_UART_HWFC_DISABLED , NRF_UART_PARITY_EXCLUDED ,
NRF_UART_BAUDRATE_115200 ,
UART_DEFAULT_CONFIG_IRQ_PRIORITY ) ;
#define SERIAL_FIFO_TX_SIZE 32
#define SERIAL_FIFO_RX_SIZE 32
NRF_SERIAL_QUEUES_DEF ( serial_queues , SERIAL_FIFO_TX_SIZE , SERIAL_FIFO_RX_SIZE ) ;
#define SERIAL_BUFF_TX_SIZE 1
#define SERIAL_BUFF_RX_SIZE 1
NRF_SERIAL_BUFFERS_DEF ( serial_buffs , SERIAL_BUFF_TX_SIZE , SERIAL_BUFF_RX_SIZE ) ;
NRF_SERIAL_CONFIG_DEF (serial_config , NRF_SERIAL_MODE_IRQ , // NRF_SERIAL_MODE_DMA
&serial_queues , &serial_buffs , NULL , sleep_handler ) ;
NRF_SERIAL_UART_DEF ( serial_uart , 1 ) ;
I have initialize the I2C in this way :
bool twi_init ( void )
{
ret_code_t err_code ;
const nrf_drv_twi_config_t twi_config = {
.scl = PIN_SCL_BNO055 , // SCL 26
.sda = PIN_SDA_BNO055 , // SDA 27
.frequency = NRF_DRV_TWI_FREQ_100K ,
.interrupt_priority = APP_IRQ_PRIORITY_HIGH ,
.clear_bus_init = false
} ;
err_code = nrf_drv_twi_init ( &m_twi , &twi_config , NULL , NULL ) ;
if ( err_code != NRF_SUCCESS )
return false ;
// APP_ERROR_CHECK ( err_code ) ;
nrf_drv_twi_enable ( &m_twi ) ;
return true ;
}
I have initialize the timer in this way :
/////////////// Timer
uint32_t time_us = 1 ; // Time(in useconds) between consecutive compare events.
uint32_t time_ticks ;
uint32_t err_code = NRF_SUCCESS ;
// Configure TIMER_LED for generating simple light effect - leds on board will invert his state one after the other.
nrf_drv_timer_config_t timer_cfg = NRF_DRV_TIMER_DEFAULT_CONFIG ;
err_code = nrf_drv_timer_init ( &TIMER_PULSE_WIDTH , &timer_cfg , timer_event_handler ) ;
APP_ERROR_CHECK ( err_code ) ;
time_ticks = nrf_drv_timer_us_to_ticks ( &TIMER_PULSE_WIDTH , time_us ) ;
nrf_drv_timer_extended_compare (
&TIMER_PULSE_WIDTH , NRF_TIMER_CC_CHANNEL2 , time_ticks , NRF_TIMER_SHORT_COMPARE0_CLEAR_MASK , true ) ;
nrf_drv_timer_enable ( &TIMER_PULSE_WIDTH ) ;
I attached main.c and sdk_config files.
sdk_config.h
/**
* Copyright (c) 2014 - 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.
*
*/
/** @file
*
* @defgroup ble_sdk_app_csc_main main.c
* @{
* @ingroup ble_sdk_app_csc
* @brief Cycling Speed and Cadence Service Sample Application main file.
*
* This file contains the source code for a sample application using the Cycling Speed and Cadence
* Service.
* It also includes the sample code for Battery and Device Information services.
* This application uses the @ref srvlib_conn_params module.
*
* This application implements supports for both Wheel revolution Data and Crank Revolution Data.
* In addition, this application also has support for all 'Speed and Cadence Control Point'.
*/
#include <stdint.h>
#include <string.h>
#include <stdbool.h> // add
#include <stddef.h> // add
#include "nrf_drv_clock.h" // add
#include "nrf_gpio.h" // add
#include "nrf_delay.h" // add
#include "nrf_drv_power.h" // add
#include "nrf_serial.h" // add
#include "app_error.h" // add
#include "app_util.h" // add
#include "boards.h" // add
#include "nordic_common.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_cscs.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_gpio.h"
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"
#include "BNO055.h"
#include "nrf_drv_twi.h"
#include "nrf_drv_timer.h"
#include "shared_data.h"
#define DEVICE_NAME "U-Tech NRF-BLE" /**< Name of device. Will be included in the advertising data. */
#define MANUFACTURER_NAME "NordicSemiconductor" /**< Manufacturer. Will be passed to Device Information Service. */
#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 APP_ADV_INTERVAL 40 /**< The advertising interval (in units of 0.625 ms. This value corresponds to 25 ms). */
#define APP_ADV_DURATION 18000 /**< The advertising duration (180 seconds) in units of 10 milliseconds. */
#define BATTERY_LEVEL_MEAS_INTERVAL APP_TIMER_TICKS(10) //APP_TIMER_TICKS(2000)/**< Battery level measurement interval (ticks). */
#define MIN_BATTERY_LEVEL 81 /**< Minimum battery level as returned by the simulated measurement function. */
#define MAX_BATTERY_LEVEL 100 /**< Maximum battery level as returned by the simulated measurement function. */
#define BATTERY_LEVEL_INCREMENT 1 /**< Value by which the battery level is incremented/decremented for each call to the simulated measurement function. */
#define SPEED_AND_CADENCE_MEAS_INTERVAL 80 /**< Speed and cadence measurement interval (milliseconds). */
#define WHEEL_CIRCUMFERENCE_MM 2100 /**< Simulated wheel circumference in millimeters. */
#define KPH_TO_MM_PER_SEC 278 /**< Constant to convert kilometers per hour into millimeters per second. */
#define MIN_SPEED_KPH 10 /**< Minimum speed in kilometers per hour for use in the simulated measurement function. */
#define MAX_SPEED_KPH 40 /**< Maximum speed in kilometers per hour for use in the simulated measurement function. */
#define SPEED_KPH_INCREMENT 1 /**< Value by which speed is incremented/decremented for each call to the simulated measurement function. */
#define DEGREES_PER_REVOLUTION 360 /**< Constant used in simulation for calculating crank speed. */
#define RPM_TO_DEGREES_PER_SEC 6 /**< Constant to convert revolutions per minute into degrees per second. */
#define MIN_CRANK_RPM 20 /**< Minimum cadence in RPM for use in the simulated measurement function. */
#define MAX_CRANK_RPM 110 /**< Maximum cadence in RPM for use in the simulated measurement function. */
#define CRANK_RPM_INCREMENT 3 /**< Value by which cadence is incremented/decremented in the simulated measurement function. */
#define MIN_CONN_INTERVAL MSEC_TO_UNITS ( 10 , UNIT_1_25_MS ) /**< Minimum acceptable connection interval (10 milliseconds). */
#define MAX_CONN_INTERVAL MSEC_TO_UNITS ( 100 , UNIT_1_25_MS ) /**< Maximum acceptable connection interval (100 milliseconds). */
#define SLAVE_LATENCY 0 /**< Slave latency. */
#define CONN_SUP_TIMEOUT MSEC_TO_UNITS ( 30000 , UNIT_10_MS ) /**< Connection supervisory timeout (30 seconds). */
#define FIRST_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS ( 100 ) // 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 ( 100 ) // 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 0 /**< Man In The Middle protection not required. */
#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_NONE /**< No 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. */
const nrf_drv_timer_t TIMER_PULSE_WIDTH = NRF_DRV_TIMER_INSTANCE(2);
/******************* SERIAL DECLARATION. ******************
*/
#define OP_QUEUES_SIZE 3
//#define APP_TIMER_PRESCALER NRF_SERIAL_APP_TIMER_PRESCALER
#define APP_TIMER_PRESCALER 0
static void sleep_handler ( void )
{
__WFE ( ) ;
__SEV ( ) ;
__WFE ( ) ;
}
NRF_SERIAL_DRV_UART_CONFIG_DEF ( m_uart0_drv_config ,
RX_PIN_UART_BADGE , TX_PIN_UART_BADGE ,
RTS_PIN_NUMBER , CTS_PIN_NUMBER ,
NRF_UART_HWFC_DISABLED , NRF_UART_PARITY_EXCLUDED ,
NRF_UART_BAUDRATE_115200 ,
UART_DEFAULT_CONFIG_IRQ_PRIORITY ) ;
#define SERIAL_FIFO_TX_SIZE 32
#define SERIAL_FIFO_RX_SIZE 32
NRF_SERIAL_QUEUES_DEF ( serial_queues , SERIAL_FIFO_TX_SIZE , SERIAL_FIFO_RX_SIZE ) ;
#define SERIAL_BUFF_TX_SIZE 1
#define SERIAL_BUFF_RX_SIZE 1
NRF_SERIAL_BUFFERS_DEF ( serial_buffs , SERIAL_BUFF_TX_SIZE , SERIAL_BUFF_RX_SIZE ) ;
NRF_SERIAL_CONFIG_DEF (serial_config , NRF_SERIAL_MODE_IRQ , // NRF_SERIAL_MODE_DMA
&serial_queues , &serial_buffs , NULL , sleep_handler ) ;
NRF_SERIAL_UART_DEF ( serial_uart , 1 ) ;
// ID LED
#define ID_LED_1 0
#define ID_LED_2 1
#define ID_LED_3 2
#define ID_LED_4 3
// Macro
#define OK 1
#define KO 0
#define BUFF_EQUAL 0
#define MAX_TRY_AGAIN_AUTOLISTCARD_COMMAND 3
// MaxSonar
#define TIMEOUT_PULSE_MAXSONAR 10000 // us -> 5ms
// State pulse
#define HIGH_PULSE_MAXSONAR 1
#define LOW_PULSE_MAXSONAR 0
// TWI instance ID.
#if TWI0_ENABLED
#define TWI_INSTANCE_ID 0
#elif TWI1_ENABLED
#define TWI_INSTANCE_ID 1
#endif
/**********************************************************
*/
BLE_BAS_DEF ( m_bas ) ; /**< Battery service instance. */
BLE_CSCS_DEF ( m_cscs ) ; /**< Cycling speed and cadence service instance. */
NRF_BLE_GATT_DEF ( m_gatt ) ; /**< GATT module instance. */
NRF_BLE_QWR_DEF ( m_qwr ) ; /**< Context for the Queued Write module.*/
BLE_ADVERTISING_DEF ( m_advertising ) ; /**< Advertising module instance. */
APP_TIMER_DEF ( m_battery_timer_id ) ; /**< Battery timer. */
APP_TIMER_DEF ( m_csc_meas_timer_id ) ; /**< CSC measurement timer. */
static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID ; /**< Handle of the current connection. */
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_speed_kph_sim_cfg ; /**< Speed simulator configuration. */
static sensorsim_state_t m_speed_kph_sim_state ; /**< Speed simulator state. */
static sensorsim_cfg_t m_crank_rpm_sim_cfg ; /**< Crank simulator configuration. */
static sensorsim_state_t m_crank_rpm_sim_state ; /**< Crank simulator state. */
static uint32_t m_cumulative_wheel_revs ; /**< Cumulative wheel revolutions. */
static bool m_auto_calibration_in_progress ; /**< Set when an autocalibration is in progress. */
// Variable
char ACK [ ] = { 0x50 , 0x00 , 0x00 , 0x23 , 0x73 } ;
char buff_received_uart_badge [ 30 ] = "" ;
char UID_badge [ MAX_BUFF_BADGE ] = "" ;
char char_UID_badge [ 10 ] = "" ;
uint8_t buffer [ 512 ] = "" ;
int index = 0 ;
uint8_t error_system = false ;
bool new_badge = false ;
uint16_t pulse_width_MaxSonar = 0 ;
uint32_t timer = 0 ;
bool enable_timer = false ;
// TWI instance
const nrf_drv_twi_t m_twi = NRF_DRV_TWI_INSTANCE ( TWI_INSTANCE_ID ) ;
/**< Supported location for the sensor location. */
static ble_sensor_location_t supported_locations [ ] =
{
BLE_SENSOR_LOCATION_FRONT_WHEEL,
BLE_SENSOR_LOCATION_LEFT_CRANK,
BLE_SENSOR_LOCATION_RIGHT_CRANK,
BLE_SENSOR_LOCATION_LEFT_PEDAL,
BLE_SENSOR_LOCATION_RIGHT_PEDAL,
BLE_SENSOR_LOCATION_FRONT_HUB,
BLE_SENSOR_LOCATION_REAR_DROPOUT,
BLE_SENSOR_LOCATION_CHAINSTAY,
BLE_SENSOR_LOCATION_REAR_WHEEL,
BLE_SENSOR_LOCATION_REAR_HUB
};
static ble_uuid_t m_adv_uuids[] = /**< Universally unique service identifiers. */
{
{BLE_UUID_CYCLING_SPEED_AND_CADENCE, BLE_UUID_TYPE_BLE},
{BLE_UUID_BATTERY_SERVICE, BLE_UUID_TYPE_BLE},
{BLE_UUID_DEVICE_INFORMATION_SERVICE, BLE_UUID_TYPE_BLE}
};
// EXTERN
extern bno055_data data_BNO055 ;
extern bool update_data_BNO055 ;
extern char tmp_UID_badge [ MAX_BUFF_BADGE ] ;
extern uint8_t package_send ;
// FUNCTION
static void advertising_start ( bool erase_bonds ) ;
char init_autolistcard ( void ) ;
bool twi_init ( void ) ;
uint16_t read_pulse_MaxSonar ( void ) ;
/**@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 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_flash_clean(p_evt);
switch (p_evt->evt_id)
{
case PM_EVT_PEERS_DELETE_SUCCEEDED:
advertising_start(false);
break;
default:
break;
}
}
/**@brief Function for performing battery measurement and updating the Battery Level characteristic
* in 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.
*/
static void battery_level_meas_timeout_handler(void * p_context)
{
UNUSED_PARAMETER(p_context);
//battery_level_update();
}
/**@brief Function for populating simulated cycling speed and cadence measurements.
*/
static void csc_sim_measurement(ble_cscs_meas_t * p_measurement)
{
static uint16_t cumulative_crank_revs = 0;
static uint16_t event_time = 0;
static uint16_t wheel_revolution_mm = 0;
static uint16_t crank_rev_degrees = 0;
uint16_t mm_per_sec;
uint16_t degrees_per_sec;
uint16_t event_time_inc;
// Per specification event time is in 1/1024th's of a second.
event_time_inc = (1024 * SPEED_AND_CADENCE_MEAS_INTERVAL) / 1000;
// Calculate simulated wheel revolution values.
p_measurement->is_wheel_rev_data_present = true;
mm_per_sec = KPH_TO_MM_PER_SEC * sensorsim_measure(&m_speed_kph_sim_state,
&m_speed_kph_sim_cfg);
wheel_revolution_mm += mm_per_sec * SPEED_AND_CADENCE_MEAS_INTERVAL / 1000;
m_cumulative_wheel_revs += wheel_revolution_mm / WHEEL_CIRCUMFERENCE_MM;
wheel_revolution_mm %= WHEEL_CIRCUMFERENCE_MM;
p_measurement->cumulative_wheel_revs = m_cumulative_wheel_revs;
p_measurement->last_wheel_event_time =
event_time + (event_time_inc * (mm_per_sec - wheel_revolution_mm) / mm_per_sec);
// Calculate simulated cadence values.
p_measurement->is_crank_rev_data_present = true;
degrees_per_sec = RPM_TO_DEGREES_PER_SEC * sensorsim_measure(&m_crank_rpm_sim_state,
&m_crank_rpm_sim_cfg);
crank_rev_degrees += degrees_per_sec * SPEED_AND_CADENCE_MEAS_INTERVAL / 1000;
cumulative_crank_revs += crank_rev_degrees / DEGREES_PER_REVOLUTION;
crank_rev_degrees %= DEGREES_PER_REVOLUTION;
p_measurement->cumulative_crank_revs = cumulative_crank_revs;
p_measurement->last_crank_event_time =
event_time + (event_time_inc * (degrees_per_sec - crank_rev_degrees) / degrees_per_sec);
event_time += event_time_inc;
}
/**@brief Function for handling the Cycling Speed and Cadence measurement timer timeouts.
*
* @details This function will be called each time the cycling speed and cadence
* 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.
*/
static void csc_meas_timeout_handler ( void * p_context )
{
uint32_t err_code;
ble_cscs_meas_t cscs_measurement ;
UNUSED_PARAMETER ( p_context ) ;
/* VERIFICO SE DEVO INVIARE UN PACCHETTO ALL'APP */
// Se il codice del badge non � valorizzato invio il pacchetto successivo
if ( strncmp ( UID_badge , tmp_UID_badge , 16 ) != STR_EQUAL )
package_send = PACKAGE_1_SEND_BLE ;
else if( update_data_BNO055 == true )
package_send = PACKAGE_2_SEND_BLE ;
else
package_send = DATA_NOT_AVAILABLE ;
/* SE CI SONO DATI DISPONIBILI LI INVIO ALL'APP */
if ( package_send != DATA_NOT_AVAILABLE )
{
err_code = ble_cscs_measurement_send ( &m_cscs , &cscs_measurement ) ;
if ( err_code == NRF_SUCCESS )
{
// Dati inviati correttamente aggiorno le variabili che
// gestiscono l'invio dei dati ( attesa nuovo badge e
// nuovi dati disponibili dal sensore BNO055 )
if ( package_send == PACKAGE_1_SEND_BLE )
strncpy ( tmp_UID_badge , UID_badge , 16 ) ;
else if ( package_send == PACKAGE_2_SEND_BLE )
update_data_BNO055 = false ;
}
}
}
/**@brief Function for the Timer initialization.
*
* @details Initializes the timer module. This creates and starts application timers.
*/
static 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_SINGLE_SHOT,
// battery_level_meas_timeout_handler);
// APP_ERROR_CHECK(err_code);
// Create battery timer.
err_code = app_timer_create(&m_csc_meas_timer_id,
APP_TIMER_MODE_REPEATED,
csc_meas_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_CYCLING_SPEED_CADENCE_SENSOR);
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 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 handling Speed and Cadence Control point events
*
* @details Function for handling Speed and Cadence Control point events.
* This function parses the event and in case the "set cumulative value" event is received,
* sets the wheel cumulative value to the received value.
*/
ble_scpt_response_t sc_ctrlpt_event_handler(ble_sc_ctrlpt_t * p_sc_ctrlpt,
ble_sc_ctrlpt_evt_t * p_evt)
{
switch (p_evt->evt_type)
{
case BLE_SC_CTRLPT_EVT_SET_CUMUL_VALUE:
m_cumulative_wheel_revs = p_evt->params.cumulative_value;
break;
case BLE_SC_CTRLPT_EVT_START_CALIBRATION:
m_auto_calibration_in_progress = true;
break;
default:
// No implementation needed.
break;
}
return (BLE_SCPT_SUCCESS);
}
/**@brief Function for initializing services that will be used by the application.
*
* @details Initialize the Cycling Speed and Cadence, Battery and Device Information services.
*/
static void services_init(void)
{
uint32_t err_code;
ble_cscs_init_t cscs_init;
ble_bas_init_t bas_init;
ble_dis_init_t dis_init;
ble_sensor_location_t sensor_location;
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 Cycling Speed and Cadence Service.
memset(&cscs_init, 0, sizeof(cscs_init));
cscs_init.evt_handler = NULL;
cscs_init.feature = BLE_CSCS_FEATURE_WHEEL_REV_BIT | BLE_CSCS_FEATURE_CRANK_REV_BIT |
BLE_CSCS_FEATURE_MULTIPLE_SENSORS_BIT;
// Here the sec level for the Cycling Speed and Cadence Service can be changed/increased.
cscs_init.csc_meas_cccd_wr_sec = SEC_OPEN;
cscs_init.csc_feature_rd_sec = SEC_OPEN;
cscs_init.csc_location_rd_sec = SEC_OPEN;
cscs_init.sc_ctrlpt_cccd_wr_sec = SEC_OPEN;
cscs_init.sc_ctrlpt_wr_sec = SEC_OPEN;
cscs_init.ctrplt_supported_functions = BLE_SRV_SC_CTRLPT_CUM_VAL_OP_SUPPORTED
| BLE_SRV_SC_CTRLPT_SENSOR_LOCATIONS_OP_SUPPORTED
| BLE_SRV_SC_CTRLPT_START_CALIB_OP_SUPPORTED;
cscs_init.ctrlpt_evt_handler = sc_ctrlpt_event_handler;
cscs_init.list_supported_locations = supported_locations;
cscs_init.size_list_supported_locations = sizeof(supported_locations) /
sizeof(ble_sensor_location_t);
// initializes the sensor location to add the sensor location characteristic.
sensor_location = BLE_SENSOR_LOCATION_FRONT_WHEEL;
cscs_init.sensor_location = &sensor_location;
err_code = ble_cscs_init(&m_cscs, &cscs_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);
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);
m_speed_kph_sim_cfg.min = MIN_SPEED_KPH;
m_speed_kph_sim_cfg.max = MAX_SPEED_KPH;
m_speed_kph_sim_cfg.incr = SPEED_KPH_INCREMENT;
m_speed_kph_sim_cfg.start_at_max = false;
sensorsim_init(&m_speed_kph_sim_state, &m_speed_kph_sim_cfg);
m_crank_rpm_sim_cfg.min = MIN_CRANK_RPM;
m_crank_rpm_sim_cfg.max = MAX_CRANK_RPM;
m_crank_rpm_sim_cfg.incr = CRANK_RPM_INCREMENT;
m_crank_rpm_sim_cfg.start_at_max = false;
sensorsim_init(&m_crank_rpm_sim_state, &m_crank_rpm_sim_cfg);
m_cumulative_wheel_revs = 0;
m_auto_calibration_in_progress = false;
}
/**@brief Function for starting application timers.
*/
static void application_timers_start(void)
{
ret_code_t err_code;
uint32_t csc_meas_timer_ticks;
// Start application timers.
// err_code = app_timer_start(m_battery_timer_id, BATTERY_LEVEL_MEAS_INTERVAL, NULL);
// APP_ERROR_CHECK(err_code);
csc_meas_timer_ticks = APP_TIMER_TICKS(SPEED_AND_CADENCE_MEAS_INTERVAL);
err_code = app_timer_start(m_csc_meas_timer_id, csc_meas_timer_ticks, NULL);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling the Connection Parameter events.
*
* @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 configuration 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)
{
uint32_t err_code;
ble_conn_params_init_t connection_params_init;
memset(&connection_params_init, 0, sizeof(connection_params_init));
connection_params_init.p_conn_params = NULL;
connection_params_init.first_conn_params_update_delay = FIRST_CONN_PARAMS_UPDATE_DELAY;
connection_params_init.next_conn_params_update_delay = NEXT_CONN_PARAMS_UPDATE_DELAY;
connection_params_init.max_conn_params_update_count = MAX_CONN_PARAMS_UPDATE_COUNT;
connection_params_init.start_on_notify_cccd_handle = m_cscs.meas_handles.cccd_handle;
connection_params_init.disconnect_on_fail = false;
connection_params_init.evt_handler = on_conn_params_evt;
connection_params_init.error_handler = conn_params_error_handler;
err_code = ble_conn_params_init(&connection_params_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 = 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)
{
ret_code_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;
// Se si disconnette il BLE invio qualsiasi badge viene letto,
// anche se uguale al precedente
memset ( tmp_UID_badge , 0 , sizeof ( tmp_UID_badge ) ) ;
memset ( UID_badge , 0 , sizeof ( UID_badge ) ) ;
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;
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.
*/
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)
{
ret_code_t err_code;
if (erase_bonds == true)
{
delete_bonds ( ) ;
// Advertising is started by PM_EVT_PEERS_DELETE_SUCCEEDED event.
}
else
{
err_code = ble_advertising_start ( &m_advertising , BLE_ADV_MODE_FAST ) ;
APP_ERROR_CHECK ( err_code ) ;
}
}
/**
* @brief TWI initialization.
*/
bool twi_init ( void )
{
ret_code_t err_code ;
const nrf_drv_twi_config_t twi_config = {
.scl = PIN_SCL_BNO055 , // SCL 26
.sda = PIN_SDA_BNO055 , // SDA 27
.frequency = NRF_DRV_TWI_FREQ_100K ,
.interrupt_priority = APP_IRQ_PRIORITY_HIGH ,
.clear_bus_init = false
} ;
err_code = nrf_drv_twi_init ( &m_twi , &twi_config , NULL , NULL ) ;
if ( err_code != NRF_SUCCESS )
return false ;
// APP_ERROR_CHECK ( err_code ) ;
nrf_drv_twi_enable ( &m_twi ) ;
return true ;
}
/**
* @brief Handler for timer events.
*/
void test_IRQHandler(void)
///HardFault_IRQn timer_event_handler ( nrf_timer_event_t event_type , void* p_context )
{
// if ( enable_timer == true )
timer ++ ;
// else
// timer = 0 ;
}
/**@brief Function for application main entry.
*/
int main ( void )
{
bool erase_bonds ;
ret_code_t ret ;
// Initialize.
log_init ( ) ;
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 ( ) ;
// GPIO
// param1 - pin_number Specifies the pin number.
// param2 - pull_config State of the pin range pull resistor (no pull, pulled down, or pulled high).
nrf_gpio_cfg_input ( RX_PIN_NUMBER , NRF_GPIO_PIN_NOPULL ) ;
// Inizializzazione necessaria per comunicare con la UART
nrf_drv_clock_lfclk_request ( NULL ) ;
ret = app_timer_init ( ) ;
APP_ERROR_CHECK ( ret ) ;
/////////////// Timer
uint32_t time_us = 1 ; // Time(in useconds) between consecutive compare events.
uint32_t time_ticks ;
uint32_t err_code = NRF_SUCCESS ;
// Configure TIMER_LED for generating simple light effect - leds on board will invert his state one after the other.
nrf_drv_timer_config_t timer_cfg = NRF_DRV_TIMER_DEFAULT_CONFIG ;
err_code = nrf_drv_timer_init ( &TIMER_PULSE_WIDTH , &timer_cfg , timer_event_handler ) ;
APP_ERROR_CHECK ( err_code ) ;
time_ticks = nrf_drv_timer_us_to_ticks ( &TIMER_PULSE_WIDTH , time_us ) ;
nrf_drv_timer_extended_compare (
&TIMER_PULSE_WIDTH , NRF_TIMER_CC_CHANNEL2 , time_ticks , NRF_TIMER_SHORT_COMPARE0_CLEAR_MASK , true ) ;
nrf_drv_timer_enable ( &TIMER_PULSE_WIDTH ) ;
// Inizializzol la comuncazione I2C
error_system = twi_init ( ) ;
// Controllo se inizializzato correttamente
if ( error_system == false )
{
while ( true )
{
bsp_board_led_invert ( ID_LED_4 ) ;
nrf_delay_ms ( 500 ) ;
bsp_board_led_invert ( ID_LED_4 ) ;
nrf_delay_ms ( 500 ) ;
}
}
// Enter main loop.
for (;;)
{
// Loop
}
}
/**
* @}
*/
