ThreadX Interrupt latency

[michaeldkfowler]

Hello,
I have written an ISR that calls tx_semaphore_put() to wake a thread that is waiting for the semaphore using tx_semaphore_get(). There is only the one thread on the system. It takes 5 micro seconds for the thread to begin running. This is too long. How do I ensure my high priority interrupts are handled in a timely manner? Thanks.

[danielchen]

Hi Michael:

Please refer to below application note for RT interrupt latency.

https://www.nxp.com.cn/docs/en/application-note/AN12078.pdf

For AzureRTOS interrupt latency.  I would suggest you post your question on our partner‘s community support.

https://azure.microsoft.com/en-us/support/community/

Regards

Daniel