nRF

Nordic nRF52 SoC interfaces. More...

Functions
void	soc_nrf_sleep_full_block (void)
	Block full sleep.
void	soc_nrf_sleep_full_release (void)
	Release a block taken with soc_nrf_sleep_full_block().
bool	soc_nrf_sleep_full_is_allowed (void)
	Check whether full sleep is permitted.

Detailed Description

Nordic nRF52 SoC interfaces.

When idle for long enough, the nRF52 enters full sleep: flash is powered down, the tick is paused and the CPU is woken by the RTC alarm. Code that cannot tolerate that, e.g. while a transfer depends on the tick or on flash, blocks it for the duration:

soc_nrf_sleep_full_block();
prv_run_transfer();
soc_nrf_sleep_full_release();

Function Documentation

soc_nrf_sleep_full_block()

void soc_nrf_sleep_full_block

(

void

)

Block full sleep.

Plain WFI sleep remains allowed. Refcounted; balance each call with soc_nrf_sleep_full_release(). Safe to call concurrently, including from ISRs.

soc_nrf_sleep_full_is_allowed()

bool soc_nrf_sleep_full_is_allowed

(

void

)

Check whether full sleep is permitted.

Returns

true if no block is outstanding.

soc_nrf_sleep_full_release()

void soc_nrf_sleep_full_release

(

void

)

Release a block taken with soc_nrf_sleep_full_block().