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ZigBee Task Interval With FreeRTOS

I have an nRF52840 based multi protocol ZigBee/Bluetooth coordinator running FreeRTOS. (Based on the nRF5 Thread and ZigBee SDK v4.0.0). I'm looking for guidance as to the the recommended task interval for processing the ZigBee stack. The only FreeRTOS example in the SDK has the task interval at 5 ticks with a OS frequency of 1,024HZ. My design is using a 5 ms interval with a frequency of 1,000Hz.

Note: In my current design the Zigbee task is highest priority.

Thanks,

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0 Marte Myrvold over 5 years ago

Hi,

I am not certain about this myself, but I have forwarded your question to our Zigbee team.

Best regards,

Marte
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0 Marte Myrvold over 5 years ago in reply to Marte Myrvold

Hi,

The answer from the developers is that there is no strict recommendation for this interval. There should be no unnecessary delays for stack processing, however if stack-processing thread consumes too much MPU time, one can use short delay (like around 1ms) to allow proper working of other threads.

Best regards,

Marte
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0 Marte Myrvold over 5 years ago in reply to Marte Myrvold

Hi,

The answer from the developers is that there is no strict recommendation for this interval. There should be no unnecessary delays for stack processing, however if stack-processing thread consumes too much MPU time, one can use short delay (like around 1ms) to allow proper working of other threads.

Best regards,

Marte
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