Kernel Control
[API]
Modules
Detailed Description
task. h
taskYIELD() is used to request a context switch to another task. However, if
there are no other tasks at a higher or equal priority to the task that calls
taskYIELD() then the RTOS scheduler will simply select the task that called
taskYIELD() to run again.
If configUSE_PREEMPTION
is set to 1 then the RTOS scheduler will always be running
the highest priority task that is able to run, so calling taskYIELD() will never
result in a switch to a higher priority task.
task. h
If the port in use supports the configMAX_SYSCALL_INTERRUPT_PRIORITY (or
configMAX_API_CALL_INTERRUPT_PRIORITY) constant, then taskDISABLE_INTERRUPTS will either
disable all interrupts, or mask (disable) interrupts up to the configMAX_SYSCALL_INTERRUPT_PRIORITY setting.
Check the implementation of taskDISABLE_INTERRUPTS for the port in use.
If the port in use does not support the configMAX_SYSCALL_INTERRUPT_PRIORITY constant
then taskDISABLE_INTERRUPTS() will globally disable all maskable interrupts.
Normally this macro would not be called directly and taskENTER_CRITICAL() and
taskEXIT_CRITICAL() should be used in its place.
task. h
Macro to enable microcontroller interrupts.
Normally this macro would not be called directly and taskENTER_CRITICAL() and
taskEXIT_CRITICAL() should be used in its place.
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