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FreeRTOS Support ArchiveThe FreeRTOS support forum is used to obtain active support directly from Real Time Engineers Ltd. In return for using our top quality software and services for free, we request you play fair and do your bit to help others too! Sign up to receive notifications of new support topics then help where you can.
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Timing of ISRPosted by Nobody/Anonymous on September 20, 2006 I have a problem, I use a queue in an ISR, which starts a task with the highest priority. When I give the interrupt for free, the ISR starts some milliseconds after the event, which is to late! After 3 or 4 events everything is ok, the ISR starts after some microseconds. I use a LPC2119. The interrupt has the second highest priority. The highest is the timer for the os tick. Maybe someone can help me? RE: Timing of ISRPosted by Nobody/Anonymous on September 20, 2006 Do you mean the ISR starts some milliseconds after some event - or that the task start some milliseconds after the ISR? If the former, then are you keeping interrupts disabled for too long anywhere in your code?
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