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Diffstat (limited to 'c-user/interrupt/introduction.rst')
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diff --git a/c-user/interrupt/introduction.rst b/c-user/interrupt/introduction.rst new file mode 100644 index 0000000..272eba2 --- /dev/null +++ b/c-user/interrupt/introduction.rst @@ -0,0 +1,37 @@ +.. SPDX-License-Identifier: CC-BY-SA-4.0 + +.. Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR) + +Introduction +============ + +Any real-time executive must provide a mechanism for quick response to +externally generated interrupts to satisfy the critical time constraints of the +application. The interrupt manager provides this mechanism for RTEMS. This +manager permits quick interrupt response times by providing the critical +ability to alter task execution which allows a task to be preempted upon exit +from an ISR. The interrupt manager includes the following directive: + +- :ref:`rtems_interrupt_catch` + +- :ref:`rtems_interrupt_disable` + +- :ref:`rtems_interrupt_enable` + +- :ref:`rtems_interrupt_flash` + +- :ref:`rtems_interrupt_local_disable` + +- :ref:`rtems_interrupt_local_enable` + +- :ref:`rtems_interrupt_lock_initialize` + +- :ref:`rtems_interrupt_lock_acquire` + +- :ref:`rtems_interrupt_lock_release` + +- :ref:`rtems_interrupt_lock_acquire_isr` + +- :ref:`rtems_interrupt_lock_release_isr` + +- :ref:`rtems_interrupt_is_in_progress` |