Power profiling sample application main file. More...

Macros
#define	APP_CFG_NON_CONN_ADV_TIMEOUT 30

#define	APP_CFG_CHAR_NOTIF_TIMEOUT 5000

#define	APP_CFG_ADV_DATA_LEN 31

#define	APP_CFG_CONNECTION_INTERVAL 20

#define	APP_CFG_CHAR_LEN 20

#define	NOTIF_BUTTON_PIN_NO NRF6310_BUTTON_0

#define	NON_CONN_ADV_BUTTON_PIN_NO NRF6310_BUTTON_1

#define	DEVICE_NAME "Nordic_Power_Mgmt"

#define	APP_TIMER_PRESCALER 0

#define	APP_TIMER_MAX_TIMERS 2

#define	APP_TIMER_OP_QUEUE_SIZE 4

#define	CHAR_NOTIF_TIMEOUT_IN_TKS

#define	CONNECTABLE_ADV_INTERVAL MSEC_TO_UNITS(20, UNIT_0_625_MS)

#define	NON_CONNECTABLE_ADV_INTERVAL MSEC_TO_UNITS(100, UNIT_0_625_MS)

#define	CONNECTABLE_ADV_TIMEOUT 30

#define	SLAVE_LATENCY 0

#define	CONN_SUP_TIMEOUT MSEC_TO_UNITS(4000, UNIT_10_MS)

#define	ADV_ENCODED_AD_TYPE_LEN 1

#define	ADV_ENCODED_AD_TYPE_LEN_LEN 1

#define	ADV_FLAGS_LEN 1

#define	ADV_ENCODED_FLAGS_LEN

#define	ADV_ENCODED_COMPANY_ID_LEN 2

#define	ADV_ADDL_MANUF_DATA_LEN

#define	COMPANY_IDENTIFIER 0x0059

#define	LOCAL_SERVICE_UUID 0x1523

#define	LOCAL_CHAR_UUID 0x1524

#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	char_notify (void)
	Function for the Characteristic notification. More...

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

static void	connectable_adv_init (void)
	Function for initializing the connectable advertisement parameters. More...

static void	non_connectable_adv_init (void)
	Function for initializing the non-connectable advertisement parameters. More...

static void	advertising_data_init (void)
	Function for initializing the Advertisement packet. More...

static void	char_add (const uint8_t uuid_type)
	Function for adding the Characteristic. More...

static void	service_add (void)
	Function for adding the Service. More...

static void	notif_timeout_handler (void *p_context)
	Function for handling the Notification timeout. More...

static void	connection_interval_timeout_handler (void *p_context)
	Function for handling the Connection interval timeout. More...

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

static void	application_timers_stop (void)
	Function for Stopping application timers.

static void	advertising_start (void)
	Function for starting advertising.

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

static void	on_write (ble_evt_t *p_ble_evt)
	Function for evaluating the value written in CCCD. More...

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 using the GPIO module to configure the required buttons.

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

int	main (void)
	Function for application main entry.

Variables
static const ble_uuid128_t	m_base_uuid128
	128-bit UUID base List. More...

static ble_gap_adv_params_t	m_adv_params

static uint8_t	m_char_value [APP_CFG_CHAR_LEN]

static uint8_t	m_addl_adv_manuf_data [ADV_ADDL_MANUF_DATA_LEN]

static ble_gatts_char_handles_t	m_char_handles

static uint16_t	m_conn_handle = BLE_CONN_HANDLE_INVALID

static uint16_t	m_service_handle

static bool	m_is_notifying_enabled = false

static app_timer_id_t	m_conn_int_timer_id

static app_timer_id_t	m_notif_timer_id

Detailed Description

This file contains the source code for a sample application to demonstrate/measure the power consumption by the nRF51822 chip while sending notifications for a given duration and while advertising in non-connectable mode for a given duration. The values of macros that begin with APP_CFG_ prefix can be changed to alter the power consumption of the application.

srvlib_conn_params module.

Macro Definition Documentation

#define APP_CFG_NON_CONN_ADV_TIMEOUT 30

Time for which the device must be advertising in non-connectable mode (in seconds).

#define APP_CFG_CHAR_NOTIF_TIMEOUT 5000

Time for which the device must continue to send notifications once connected to master (in milli seconds).

#define APP_CFG_ADV_DATA_LEN 31

Required length of the complete advertisement packet. This should be atleast 8 in order to accommodate flag field and other mandatory fields and one byte of manufacturer specific data.

#define APP_CFG_CONNECTION_INTERVAL 20

Connection interval used by the master (in milli seconds). This application will be sending one notification per connection interval. A repeating timer will be started with timeout value equal to this value and one notification will be sent everytime this timer expires.

#define APP_CFG_CHAR_LEN 20

Size of the characteristic value being notified (in bytes).

#define NOTIF_BUTTON_PIN_NO NRF6310_BUTTON_0

Button used for initializing the application in connectable mode.

#define NON_CONN_ADV_BUTTON_PIN_NO NRF6310_BUTTON_1

Button used for initializing the application in non-connectable mode.

#define DEVICE_NAME "Nordic_Power_Mgmt"

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

#define APP_TIMER_PRESCALER 0

Value of the RTC1 PRESCALER register.

#define APP_TIMER_MAX_TIMERS 2

Maximum number of simultaneously created timers.

#define APP_TIMER_OP_QUEUE_SIZE 4

Size of timer operation queues.

#define CHAR_NOTIF_TIMEOUT_IN_TKS

Value:

APP_TIMER_TICKS(APP_CFG_CHAR_NOTIF_TIMEOUT,\

APP_TIMER_PRESCALER)

Time for which the device must continue to send notifications once connected to master (in ticks).

#define CONNECTABLE_ADV_INTERVAL MSEC_TO_UNITS(20, UNIT_0_625_MS)

The advertising interval for connectable advertisement (20 ms). This value can vary between 20ms to 10.24s.

#define NON_CONNECTABLE_ADV_INTERVAL MSEC_TO_UNITS(100, UNIT_0_625_MS)

The advertising interval for non-connectable advertisement (100 ms). This value can vary between 100ms to 10.24s).

#define CONNECTABLE_ADV_TIMEOUT 30

Time for which the device must be advertising in connectable mode (in seconds).

#define SLAVE_LATENCY 0

Slave latency.

#define CONN_SUP_TIMEOUT MSEC_TO_UNITS(4000, UNIT_10_MS)

Connection supervisory timeout (4 seconds).

#define ADV_ENCODED_AD_TYPE_LEN 1

Length of encoded ad type in advertisement data.

#define ADV_ENCODED_AD_TYPE_LEN_LEN 1

Length of the 'length field' of each ad type in advertisement data.

#define ADV_FLAGS_LEN 1

Length of flags field that will be placed in advertisement data.

#define ADV_ENCODED_FLAGS_LEN

Value:

(ADV_ENCODED_AD_TYPE_LEN + \
 ADV_ENCODED_AD_TYPE_LEN_LEN + \
 ADV_FLAGS_LEN)

Length of flags field in advertisement packet. (1 byte for encoded ad type plus 1 byte for length of flags plus the length of the flags itself).

#define ADV_ENCODED_COMPANY_ID_LEN 2

Length of the encoded Company Identifier in the Manufacturer Specific Data part of the advertisement data.

#define ADV_ADDL_MANUF_DATA_LEN

Value:

(APP_CFG_ADV_DATA_LEN - \
 ( \
 ADV_ENCODED_FLAGS_LEN + \
 ( \
 ADV_ENCODED_AD_TYPE_LEN + \
 ADV_ENCODED_AD_TYPE_LEN_LEN + \
 ADV_ENCODED_COMPANY_ID_LEN \
 ) \
 ) \
 )

Length of Manufacturer Specific Data field that will be placed on the air during advertisement. This is computed based on the value of APP_CFG_ADV_DATA_LEN (required advertisement data length).

#define COMPANY_IDENTIFIER 0x0059

Company identifier for Nordic Semiconductor ASA as per www.bluetooth.org.

#define LOCAL_SERVICE_UUID 0x1523

Proprietary UUID for local service.

#define LOCAL_CHAR_UUID 0x1524

Proprietary UUID for local characteristic.

#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 char_notify ( void )

static

Sends one characteristic value notification to peer if connected to it and the notification is enabled.

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.

static void connectable_adv_init ( void )

static

This function initializes the advertisement parameters to values that will put the application in connectable mode.

static void non_connectable_adv_init ( void )

static

This function initializes the advertisement parameters to values that will put the application in non-connectable mode.

static void advertising_data_init ( void )

static

This function initializes the data that is to be placed in an advertisement packet in both connectable and non-connectable modes.

static void char_add ( const uint8_t uuid_type )

static

This function adds the characteristic to the local db.

Parameters

[in] uuid_type Type of service UUID assigned by the S110 SoftDevice.

static void service_add ( void )

static

This function adds the service and the characteristic within it to the local db.

static void notif_timeout_handler ( void * p_context )

static

This function will be called when the notification timer expires. This will stop the timer for connection interval and disconnect from the peer.

Parameters

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

static void connection_interval_timeout_handler ( void * p_context )

static

This function will be called when the connection interval timer expires. This will trigger another characteristic notification to the peer.

Parameters

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

static void application_timers_start ( void )

static

This function will be start two timers - one for the time duration for which notifications have to be sent to the peer and another for the interval between two notifications (which is also the connection interval).

static void timers_init ( void )

static

Initializes the timer module.

static void on_write ( ble_evt_t * p_ble_evt )

static

This shall be called when there is a write event received from the stack. This function will evaluate whether or not the peer has enabled notifications and start/stop notifications accordingly.

Parameters

[in] p_ble_evt Bluetooth stack event.

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.

Variable Documentation

const ble_uuid128_t m_base_uuid128

static

Initial value:

=
{
 {
 0x23, 0xD1, 0xBC, 0xEA, 0x5F, 0x78, 0x23, 0x15,
 0xDE, 0xEF, 0x12, 0x12, 0x00, 0x00, 0x00, 0x00
 }
}

ble_gap_adv_params_t m_adv_params

static

Parameters to be passed to the stack when starting advertising.

uint8_t m_char_value[APP_CFG_CHAR_LEN]

static

Value of the characteristic that will be sent as a notification to the master.

uint8_t m_addl_adv_manuf_data[ADV_ADDL_MANUF_DATA_LEN]

static

Value of the additional manufacturer specific data that will be placed in air (initialized to all zeros).

ble_gatts_char_handles_t m_char_handles

static

Handles of local characteristic (as provided by the BLE stack).

uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID

static

Handle of the current connection (as provided by the BLE stack, is BLE_CONN_HANDLE_INVALID if not in a connection).

uint16_t m_service_handle

static

Handle of local service (as provided by the BLE stack).

bool m_is_notifying_enabled = false

static

Variable to indicate whether the notification is enabled by the peer.

app_timer_id_t m_conn_int_timer_id

static

Connection interval timer.

app_timer_id_t m_notif_timer_id

static

Notification timer.

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

Function Documentation

Variable Documentation