Cycling Speed and Cadence Service Sample Application main file. More...

Macros
#define	WAKEUP_BUTTON_PIN NRF6310_BUTTON_0

#define	BONDMNGR_DELETE_BUTTON_PIN_NO NRF6310_BUTTON_1

#define	DEVICE_NAME "Nordic_CSC"

#define	MANUFACTURER_NAME "NordicSemiconductor"

#define	APP_ADV_INTERVAL 40

#define	APP_ADV_TIMEOUT_IN_SECONDS 180

#define	APP_TIMER_PRESCALER 0

#define	APP_TIMER_MAX_TIMERS 3

#define	APP_TIMER_OP_QUEUE_SIZE 4

#define	BATTERY_LEVEL_MEAS_INTERVAL APP_TIMER_TICKS(2000, APP_TIMER_PRESCALER)

#define	MIN_BATTERY_LEVEL 81

#define	MAX_BATTERY_LEVEL 100

#define	BATTERY_LEVEL_INCREMENT 1

#define	SPEED_AND_CADENCE_MEAS_INTERVAL 1000

#define	WHEEL_CIRCUMFERENCE_MM 2100

#define	KPH_TO_MM_PER_SEC 278

#define	MIN_SPEED_KPH 10

#define	MAX_SPEED_KPH 40

#define	SPEED_KPH_INCREMENT 1

#define	DEGREES_PER_REVOLUTION 360

#define	RPM_TO_DEGREES_PER_SEC 6

#define	MIN_CRANK_RPM 20

#define	MAX_CRANK_RPM 110

#define	CRANK_RPM_INCREMENT 3

#define	MIN_CONN_INTERVAL MSEC_TO_UNITS(500, UNIT_1_25_MS)

#define	MAX_CONN_INTERVAL MSEC_TO_UNITS(1000, UNIT_1_25_MS)

#define	SLAVE_LATENCY 0

#define	CONN_SUP_TIMEOUT MSEC_TO_UNITS(4000, UNIT_10_MS)

#define	FIRST_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(5000, APP_TIMER_PRESCALER)

#define	NEXT_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(5000, APP_TIMER_PRESCALER)

#define	MAX_CONN_PARAMS_UPDATE_COUNT 3

#define	SEC_PARAM_TIMEOUT 30

#define	SEC_PARAM_BOND 1

#define	SEC_PARAM_MITM 0

#define	SEC_PARAM_IO_CAPABILITIES BLE_GAP_IO_CAPS_NONE

#define	SEC_PARAM_OOB 0

#define	SEC_PARAM_MIN_KEY_SIZE 7

#define	SEC_PARAM_MAX_KEY_SIZE 16

#define	FLASH_PAGE_SYS_ATTR (BLE_FLASH_PAGE_END - 3)

#define	FLASH_PAGE_BOND (BLE_FLASH_PAGE_END - 1)

#define	DEAD_BEEF 0xDEADBEEF

Functions
void	app_error_handler (uint32_t error_code, uint32_t line_num, const uint8_t *p_file_name)
	Function for error handling, which is called when an error has occurred. More...

void	assert_nrf_callback (uint16_t line_num, const uint8_t *p_file_name)
	Callback function for asserts in the SoftDevice. More...

static void	battery_level_update (void)
	Function for performing a battery measurement, and update the Battery Level characteristic in the Battery Service.

static void	battery_level_meas_timeout_handler (void *p_context)
	Function for handling the Battery measurement timer timeout. More...

static void	csc_sim_measurement (ble_cscs_meas_t *p_measurement)
	Function for populating simulated cycling speed and cadence measurements.

static void	csc_meas_timeout_handler (void *p_context)
	Function for handling the Cycling Speed and Cadence measurement timer timeouts. More...

static void	leds_init (void)
	Function for the LEDs initialization. More...

static void	timers_init (void)
	Function for the Timer initialization. More...

static void	gap_params_init (void)
	Function for the GAP initialization. More...

static void	advertising_init (void)
	Function for initializing the Advertising functionality. More...

ble_scpt_response_t	sc_ctrlpt_event_handler (ble_sc_ctrlpt_t p_sc_ctrlpt, ble_sc_ctrlpt_evt_t p_evt)
	Function for handling Speed and Cadence Control point events. More...

static void	services_init (void)
	Function for initializing services that will be used by the application. More...

static void	sensor_sim_init (void)
	Function for initializing the sensor simulators.

static void	sec_params_init (void)
	Function for initializing security parameters.

static void	application_timers_start (void)
	Function for starting application timers.

static void	advertising_start (void)
	Function for starting advertising.

static void	on_conn_params_evt (ble_conn_params_evt_t *p_evt)
	Function for handling the Connection Parameter events. More...

static void	conn_params_error_handler (uint32_t nrf_error)
	Function for handling a Connection Parameters error. More...

static void	conn_params_init (void)
	Function for initializing the Connection Parameters module.

static void	on_ble_evt (ble_evt_t *p_ble_evt)
	Function for handling the Application's BLE Stack events. More...

static void	ble_evt_dispatch (ble_evt_t *p_ble_evt)
	Function for dispatching a BLE stack event to all modules with a BLE stack event handler. More...

static void	ble_stack_init (void)
	Function for initializing the BLE stack. More...

static void	buttons_init (void)
	Function for initializing buttons.

static void	bond_manager_error_handler (uint32_t nrf_error)
	Function for handling a Bond Manager error. More...

static void	bond_manager_init (void)
	Function for the Bond Manager initialization.

static void	radio_notification_init (void)
	Function for initializing the Radio Notification event.

static void	power_manage (void)
	Function for the Power manager.

int	main (void)
	Function for application main entry.

Variables
static uint16_t	m_conn_handle = BLE_CONN_HANDLE_INVALID

static ble_gap_sec_params_t	m_sec_params

static ble_gap_adv_params_t	m_adv_params

static ble_bas_t	m_bas

static ble_cscs_t	m_cscs

static ble_sensorsim_cfg_t	m_battery_sim_cfg

static ble_sensorsim_state_t	m_battery_sim_state

static ble_sensorsim_cfg_t	m_speed_kph_sim_cfg

static ble_sensorsim_state_t	m_speed_kph_sim_state

static ble_sensorsim_cfg_t	m_crank_rpm_sim_cfg

static ble_sensorsim_state_t	m_crank_rpm_sim_state

static app_timer_id_t	m_battery_timer_id

static app_timer_id_t	m_csc_meas_timer_id

static uint32_t	m_cumulative_wheel_revs

static bool	m_auto_calibration_in_progress

static ble_sensor_location_t	supported_locations []

Detailed Description

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 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'.

Macro Definition Documentation

#define WAKEUP_BUTTON_PIN NRF6310_BUTTON_0

Button used to wake up the application.

#define BONDMNGR_DELETE_BUTTON_PIN_NO NRF6310_BUTTON_1

Button used for deleting all bonded masters during startup.

#define DEVICE_NAME "Nordic_CSC"

Name of device. Will be included in the advertising data.

#define MANUFACTURER_NAME "NordicSemiconductor"

Manufacturer. Will be passed to Device Information Service.

#define APP_ADV_INTERVAL 40

The advertising interval (in units of 0.625 ms. This value corresponds to 25 ms).

#define APP_ADV_TIMEOUT_IN_SECONDS 180

The advertising timeout in units of seconds.

#define APP_TIMER_PRESCALER 0

Value of the RTC1 PRESCALER register.

#define APP_TIMER_MAX_TIMERS 3

Maximum number of simultaneously created timers.

#define APP_TIMER_OP_QUEUE_SIZE 4

Size of timer operation queues.

#define BATTERY_LEVEL_MEAS_INTERVAL APP_TIMER_TICKS(2000, APP_TIMER_PRESCALER)

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 1000

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(500, UNIT_1_25_MS)

Minimum acceptable connection interval (0.5 seconds).

#define MAX_CONN_INTERVAL MSEC_TO_UNITS(1000, UNIT_1_25_MS)

Maximum acceptable connection interval (1 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, APP_TIMER_PRESCALER)

Time from initiating event (connect or start of notification) to first time sd_ble_gap_conn_param_update is called (5 seconds).

#define NEXT_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(5000, APP_TIMER_PRESCALER)

Time between each call to sd_ble_gap_conn_param_update after the first (30 seconds).

#define MAX_CONN_PARAMS_UPDATE_COUNT 3

Number of attempts before giving up the connection parameter negotiation.

#define SEC_PARAM_TIMEOUT 30

Timeout for Pairing Request or Security Request (in seconds).

#define SEC_PARAM_BOND 1

Perform bonding.

#define SEC_PARAM_MITM 0

Man In The Middle protection not required.

#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 FLASH_PAGE_SYS_ATTR (BLE_FLASH_PAGE_END - 3)

Flash page used for bond manager system attribute information.

#define FLASH_PAGE_BOND (BLE_FLASH_PAGE_END - 1)

Flash page used for bond manager bonding information.

#define DEAD_BEEF 0xDEADBEEF

Value used as error code on stack dump, can be used to identify stack location on stack unwind.

Function Documentation

void app_error_handler	(	uint32_t	error_code,
		uint32_t	line_num,
		const uint8_t *	p_file_name
	)

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 error.

Parameters

[in]	error_code	Error code supplied to the handler.
[in]	line_num	Line number where the handler is called.
[in]	p_file_name	Pointer to the file name.

void assert_nrf_callback	(	uint16_t	line_num,
		const uint8_t *	p_file_name
	)

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.; On assert from the SoftDevice, the system can only recover on reset.

Parameters

[in]	line_num	Line number of the failing ASSERT call.
[in]	file_name	File name of the failing ASSERT call.

static void battery_level_meas_timeout_handler ( void * p_context )

static

This function will be called each time the battery level measurement timer expires.

Parameters

[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 )

static

This function will be called each time the cycling speed and cadence measurement timer expires.

Parameters

[in] p_context Pointer used for passing some arbitrary information (context) from the app_start_timer() call to the timeout handler.

static void leds_init ( void )

static

Initializes all LEDs used by this application.

static void timers_init ( void )

static

Initializes the timer module. This creates and starts application timers.

static void gap_params_init ( void )

static

This function shall be used to setup all the necessary GAP (Generic Access Profile) parameters of the device. It also sets the permissions and appearance.

static void advertising_init ( void )

static

Encodes the required advertising data and passes it to the stack. Also builds a structure to be passed to the stack when starting advertising.

ble_scpt_response_t sc_ctrlpt_event_handler	(	ble_sc_ctrlpt_t *	p_sc_ctrlpt,
		ble_sc_ctrlpt_evt_t *	p_evt
	)

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.

static void services_init ( void )

static

Initialize the Cycling Speed and Cadence, Battery and Device Information services.

static void on_conn_params_evt ( ble_conn_params_evt_t * p_evt )

static

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.

Parameters

[in] p_evt Event received from the Connection Parameters Module.

static void conn_params_error_handler ( uint32_t nrf_error )

static

Parameters

[in] nrf_error Error code containing information about what went wrong.

static void on_ble_evt ( ble_evt_t * p_ble_evt )

static

Parameters

[in] p_ble_evt Bluetooth stack event.

static void ble_evt_dispatch ( ble_evt_t * p_ble_evt )

static

This function is called from the BLE Stack event interrupt handler after a BLE stack event has been received.

Parameters

[in] p_ble_evt Bluetooth stack event.

static void ble_stack_init ( void )

static

Initializes the SoftDevice and the BLE event interrupt.

static void bond_manager_error_handler ( uint32_t nrf_error )

static

Parameters

[in] nrf_error Error code containing information about what went wrong.

Variable Documentation

uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID

static

Handle of the current connection.

ble_gap_sec_params_t m_sec_params

static

Security requirements for this application.

ble_gap_adv_params_t m_adv_params

static

Parameters to be passed to the stack when starting advertising.

ble_bas_t m_bas

static

Structure used to identify the battery service.

ble_cscs_t m_cscs

static

Structure used to identify the cycling speed and cadence service.

ble_sensorsim_cfg_t m_battery_sim_cfg

static

Battery Level sensor simulator configuration.

ble_sensorsim_state_t m_battery_sim_state

static

Battery Level sensor simulator state.

ble_sensorsim_cfg_t m_speed_kph_sim_cfg

static

Speed simulator configuration.

ble_sensorsim_state_t m_speed_kph_sim_state

static

Speed simulator state.

ble_sensorsim_cfg_t m_crank_rpm_sim_cfg

static

Crank simulator configuration.

ble_sensorsim_state_t m_crank_rpm_sim_state

static

Crank simulator state.

app_timer_id_t m_battery_timer_id

static

Battery timer.

app_timer_id_t m_csc_meas_timer_id

static

CSC measurement timer.

uint32_t m_cumulative_wheel_revs

static

Cumulative wheel revolutions.

bool m_auto_calibration_in_progress

static

Set when an autocalibration is in progress.

ble_sensor_location_t supported_locations[]

static

Initial value:

= { 
 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 ,
 }

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

Function Documentation

Variable Documentation