ENTER and EXIT CRITICAL with interrupts - FreeRTOS

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This is a read only archive of threads posted to the FreeRTOS support forum. Use these archive pages to search previous posts. New forum support threads can be started at the FreeRTOS forums.

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ENTER and EXIT CRITICAL with interrupts

Posted by jakbird on August 14, 2007

The preferred method for handling critical areas (where context changes might corrupt variables being updated) seems to be portENTER_CRITICAL() and portEXIT_CRITICAL(). Does this handle interrupts as well? Or do I need to mask out specific interrupt requests that might affect the critical region? Jack Peacock

ENTER and EXIT CRITICAL with interrupts

Posted by davedoors on August 15, 2007

Critical regions implemented using portENTER_CRITICAL/portEXIT_CRITICAL will have all interrupts disabled. Critical regions implemented using vTaskSuspendAll/xTaskResumeAll have interrupts enabled.

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