Wireless MCUのトピックRe: Error With Sending Data to Sleeping End Devices

Error With Sending Data to Sleeping End Devices

devin2 — Thu, 30 Aug 2018 01:19:15 GMT

Hello:

when I send data to sleeping End Device from Coordinator，the following situation has occurred.

0x735C is the sleeping end device,the 0xABBA is a router node .0xABBA should send data after the 0x735C data request,but 0xABBA is send data directly.0x735C is sleeping now ,so it cannot receive 0xABBA data.

When the above happens，I restart all devices ，but it's the same as before.

How to fix it ??? What happened in this situation???

Please help me !!!

Thanks.

Re: Error With Sending Data to Sleeping End Devices

jc_pacheco — Wed, 05 Sep 2018 22:11:59 GMT

Hi Devin,

What platform, stack and version are you using?

You must set the "indirect" flag on the transmission from a parent to a child. In your sniffer capture, you should see the ACK after the data request with the "Frame pending" bit set, that will tell the child to keep the RX on to receive the data. Do you see that in your capture?

Re: Error With Sending Data to Sleeping End Devices

devin2 — Thu, 06 Sep 2018 03:27:49 GMT

Dear Juan:

Thanks for your reply ! I used JN5169 and Zigbee HA stack with Build Number 1620.The attachment is erroneous data.

I look forward to your response.Thanks.

Re: Error With Sending Data to Sleeping End Devices

mario_castaneda — Fri, 07 Sep 2018 17:50:23 GMT

Hi Devin,

JC is right, the router, in this case, is not enabled the Frame Pending bit set after the data request. The end device that you are working on is polling the data from his parent. So, you should see something like this.

The sleep end device A0CA is sending the data request and the ack from the coordinator enables the frame pending bit because the coordinator is sending a simple descriptor request, in this case.

Just to confirm, what is the AN that you are working on?

Regards,

Mario