A problem that the coordinator sends a large amount of data to the enddevice

nan lu

Hi, We did an experiment: using a coordinator to send data to 5 enddevice very quickly.( 60ms ), we found that when we stoped sending the data,coordinator was not working properly：

uint8 ZMacDataReqSec( ZMacDataReq_t *pData, applySecCB_t secCB ) the function ZMacDataReqSec was called frequently,.but could not alloc mem by MAC_McpsDataAlloc .

We allow packet loss, but when we stop sending, we hope that the coordinator will work properly.

When there is a problem, what can I do to eliminate all buffered data in a violent way?

thanks

over 6 years ago

0 YiKai Chen over 6 years ago

Guru 735475 points

When you call AF_DataRequest, you can check the return value and send next message only when return success.

0 nan lu over 6 years ago in reply to YiKai Chen

Prodigy 30 points

Thank you for your answer，
I checked the return value(AF_DataRequest). It's always been 0x10

defined OSALMEM_METRICS

i found that memMax = 0x0B37, memAlo = 0x0A90.

i just want to free these memory .

0 YiKai Chen over 6 years ago in reply to nan lu

Guru 735475 points

I think you have to slow the sending speed. It should be like calling AF_DataRequest and wait 100 ms at least before you call AF_DataRequest to send next message. Also remember not to use AF_DataRequest inside a for- or while-loop.

0 nan lu over 6 years ago in reply to YiKai Chen

Prodigy 30 points

i want to,but my customer 's testing department is going to do stress tests.

I can't get them to slow down。I can't do manual delay，because when they stopped the stress test,They need the coordinator to send the new data instead of the cached data.

0 YiKai Chen over 6 years ago in reply to nan lu

Guru 735475 points

If you cannot slow down sending speed, I don't know other alternative.

0 Sean M over 6 years ago

TI__Intellectual 2780 points

If you're looking to clear all buffered data on the ZC, there is the ZMacPurgeReq() API which might be able to help you. The argument is the handle of the data packet.

One way you might be able to clear the entire buffer is to write some form of a loop that iterates through your packet queue to purge each packet. Hope this helps.

Best,
Sean

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A problem that the coordinator sends a large amount of data to the enddevice