Timers for DFU in the bootloader

Macros
#define	NRF_BOOTLOADER_MIN_TIMEOUT_TICKS   (150)
	The shortest timeout allowed. To avoid the timeout not being activated before the time has passed.
#define	NRF_BOOTLOADER_MS_TO_TICKS(ms)   ((((uint64_t)(ms) * 32768)) / 1000)
	Macro for converting milliseconds to timer ticks. More...

Typedefs
typedef void(*	nrf_bootloader_dfu_timeout_callback_t )(void)
	Handler called on timeout of a timer requested by the watchdog.

Functions
void	nrf_bootloader_dfu_inactivity_timer_restart (uint32_t timeout_ticks, nrf_bootloader_dfu_timeout_callback_t callback)
	Function for restarting the inactivity timer. More...
void	nrf_bootloader_wdt_feed_timer_start (uint32_t timeout_ticks, nrf_bootloader_dfu_timeout_callback_t callback)
	Function for initializing and starting a repeated timer for feeding the watchdog. More...
uint32_t	nrf_bootloader_dfu_timer_counter_get (void)
	Function for retrieving the number of ticks since the RTC was started. More...

Detailed Description

Macro Definition Documentation

#define NRF_BOOTLOADER_MS_TO_TICKS

(

ms

)

((((uint64_t)(ms) * 32768)) / 1000)

Macro for converting milliseconds to timer ticks.

Parameters

[in]

ms

The milliseconds to convert.

Returns

ms converted to ticks.

Function Documentation

void nrf_bootloader_dfu_inactivity_timer_restart	(	uint32_t	timeout_ticks,
		nrf_bootloader_dfu_timeout_callback_t	callback
	)

Function for restarting the inactivity timer.

Note

Calling this function cancels any previous calls to this function.

Parameters

[in]	timeout_ticks	The number of ticks until reset. There are 32768 ticks per second. If 0 is passed, the timer will be stopped and not restarted.
[in]	callback	Function to be called on timeout.

uint32_t nrf_bootloader_dfu_timer_counter_get

(

void

)

Function for retrieving the number of ticks since the RTC was started.

There are 32768 ticks per second. This value does not wrap, even when the RTC counter wraps.

Note

The value can be 2^24 ticks too small if sampled immediately after the RTC counter wraps, but before the internal loop counter has been incremented.

Returns

The number of ticks since the RTC was started.

void nrf_bootloader_wdt_feed_timer_start	(	uint32_t	timeout_ticks,
		nrf_bootloader_dfu_timeout_callback_t	callback
	)

Function for initializing and starting a repeated timer for feeding the watchdog.

Parameters

[in]	timeout_ticks	The number of ticks between each feeding of the watchdog. There are 32768 ticks per second.
[in]	callback	Function called on every timeout.