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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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Should xQueueReceive() or xQueueReceiveFromISR() be used to receive from xQueueSendToBackFromISR()?Posted by spflanze on March 4, 2016 I have a callback within which I am using xQueueSendToBackFromISR() to send to a receiving thread that is not a callback or interrupt service routine. In the receiving thread should I use xQueueReceive() or xQueueReceiveFromISR()? In other words should only xQueueReceiveFromISR() by used to receive from xQueueSendToBackFromISR()? Or if not in a callback or interrupt service routine should xQueueReceive() be used instead? Should xQueueReceive() or xQueueReceiveFromISR() be used to receive from xQueueSendToBackFromISR()?Posted by edwards3 on March 4, 2016 You only need to use the FromISR API inside an ISR, so in your case only in the callback. The ISR uses xQueueSendFromISR() and the task uses xQueueReceive(), that is fine.
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NXP tweet showing LPC5500 (ARMv8-M Cortex-M33) running FreeRTOS.
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