CC2530: End device stops transmitting after some time

Aviral Gupta

Part Number: CC2530
Other Parts Discussed in Thread: Z-STACK

Hi,

We have a network with 1 coordinator and 5 end devices, it is observed that one of the devices stops communicating after some time.

We have enabled WDT and also toggle a GPIO whenever AT_DataRequest is called.

that device toggles GPIO, and also is not reset by WDT meaning that, the stack is not freezed and also the AD_DataRequest is called.

But we do not observe any packet transmitted by that device in the packet sniffer.
What can be cause of such behaviour?

over 6 years ago

0 YiKai Chen over 6 years ago

Guru 735685 points

Try to check return value of AF_DataRequest when you see this trouble.

0 Aviral Gupta over 6 years ago in reply to YiKai Chen

Expert 1385 points

Hi YK,

the return value of AF_DataRequest is 0xc2.
What does that indicate?

0 Ryan Brown1 over 6 years ago

TI__Guru**** 217727 points

Hi Aviral,

e2e.ti.com/.../760278

As I recall you are using Z-Stack 3.0.1, is the ZED based off the SampleLight project as before? 0xc2 is an ZNwkInvalidRequest, perhaps try re-sending the packet or software resetting when you receive this error. Is it one device in particular that stops, and if so then are there any noticeable firmware differences?

Regards,
Ryan

0 YiKai Chen over 6 years ago in reply to Aviral Gupta

Guru 735685 points

When you see the return value of AF_DataRequest is 0xc2, what are parameters used by AF_DataRequest?

0 Aviral Gupta over 6 years ago in reply to Ryan Brown1

Expert 1385 points

Hi Rayn,

Yes, you got the details right. we have put 5 devices for observation day before yesterday, out of which 3 had stopped communicating at different times. same firmware was running in all the devices.

As you suggested, i have put the software reset on two device and kept for observation now.

0 Aviral Gupta over 6 years ago in reply to YiKai Chen

Expert 1385 points

Hi YK,
the same parameter is used for a scheduled message which is sent every 2 mins. and all the return values are C2 when it starts failing.

0 YiKai Chen over 6 years ago in reply to Aviral Gupta

Guru 735685 points

Can you show me how you use AF_DataRequest?

0 Ryan Brown1 over 6 years ago in reply to Aviral Gupta

TI__Guru**** 217727 points

Hello Aviral,

What changes from the example project can be performed to replicate this issue? And how long does it typically take for the error to occur?

Regards,
Ryan

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CC2530: End device stops transmitting after some time