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SourceVuRaspberry Pi Pico SDK and ExamplesPicoSDK__wfe()

__wfe() function

Insert a WFE instruction in to the code path. The WFE (wait for event) instruction waits until one of a number of events occurs, including events signalled by the SEV instruction on either core.

Syntax

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Summary

Declaration

from sync.h:106

__force_inline static void __wfe(void);

Examples

__wfe() is referenced by 1 libraries and example projects:

FreeRTOS

References

from 0/1 examples

Code

Location

Referrer

__force_inline static void __wfe(void) {

sync.h:106

__wfe();

multicore.h:235

multicore_fifo_pop_blocking_inline()

lock_internal_spin_unlock_with_wait(&mtx->core, save);

mutex.c:77

mutex_enter_blocking()

lock_internal_spin_unlock_with_wait(&mtx->core, save);

mutex.c:92

recursive_mutex_enter_blocking()

lock_internal_spin_unlock_with_wait(&q->core, save);

queue.c:54

queue_add_internal()

lock_internal_spin_unlock_with_wait(&q->core, save);

queue.c:74

queue_remove_internal()

lock_internal_spin_unlock_with_wait(&q->core, save);

queue.c:93

queue_peek_internal()

lock_internal_spin_unlock_with_wait(&sem->core, save);

sem.c:34

sem_acquire_blocking()

lock_internal_spin_unlock_with_wait(&sleep_notifier, save);

time.c:402

sleep_until()

__wfe();

time.c:451

best_effort_wfe_or_timeout()

__wfe();

time.c:457

best_effort_wfe_or_timeout()

Call Tree

from 0/1 examples

__wfe() is called by 9 functions:

sem_acquire_blocking()

mutex_enter_blocking()

recursive_mutex_enter_blocking()

sleep_until()

best_effort_wfe_or_timeout()

queue_add_internal()

queue_remove_internal()

queue_peek_internal()

multicore_fifo_pop_blocking_inline()

__wfe()

Data Use

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Implementations

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Instances

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Lifecycle

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