RTOS/CC1310: CC1310 can't sleep during orphan state

ppielorz

Part Number: CC1310
Other Parts Discussed in Thread: CC1350

Tool/software: TI-RTOS

Hello everyone,

I have a problem, which is already desribed in two topics (https://e2e.ti.com/support/wireless_connectivity/proprietary_sub_1_ghz_simpliciti/f/156/t/623168 and https://e2e.ti.com/support/wireless_connectivity/proprietary_sub_1_ghz_simpliciti/f/156/t/633708) but there isn't mentioned a solution.

I am using SimpleLink SDK ver. 2.10.00.36 (CCS V8.0). When the collector isn't available for sensor anymore (turned off) the current of sensor is going up. In non-beacon mode for 300 seconds current is low and then it goes high, in beacon mode it goes high just after few seconds and never goes low. I have a Sniffer, I can see Orphan notification in 300 seconds interval which is corresponding to configuration file. After turning on the collector the sensor is able to connect to the network and then the current goes down correctly.

Am I doing something wrong? For my understanding sensor should sleep for CONFIG_ORPHAN_BACKOFF_INTERVAL time, then do a scan and go sleep again. Is that correct?

Regards, Pawel

over 7 years ago

0 IUsedToBeARealPerson (M-W) over 7 years ago

TI__Guru 58425 points

Hi Pawel,

Could you provide a minimal working example to demonstrate this using LaunchPads only (I understand you have some custom hardware)?
If so I could use and try to reproduce your problems to see what might be wrong.

0 ppielorz over 7 years ago in reply to IUsedToBeARealPerson (M-W)

Prodigy 190 points

Hi,
Thank you for your fast response. I've managed to reproduce the same problem with original examples of sensor and collector (I checked on CC1350 Launchpad). I checked both beacon and non-beacon options.
Using non-beacon software the current is low for about 5 minutes after powering down the collector but then goes high and I didn't notice it falling down. Using beacon software the current is going up to 7 mA after something about 30 seconds after powering down the collector. Then, after less than a minute it goes down to 4.4 mA.

Also is it possible to force sensor to sleep for some periods of time before association to a collector?

Regards,
Pawel

0 IUsedToBeARealPerson (M-W) over 7 years ago in reply to ppielorz

TI__Guru 58425 points

Hi Pawel,

I've been able to reproduce this but I don't have any explanation for this yet. I will ask around and get back to you on this.

0 ppielorz over 7 years ago in reply to IUsedToBeARealPerson (M-W)

Prodigy 190 points

Hi,
Thank you very much, I'll be observing this thread.

Regards,
Pawel

0 ppielorz over 7 years ago in reply to IUsedToBeARealPerson (M-W)

Prodigy 190 points

Hi,
Do you have any information about the problem?
I have put a Task_sleep into orphan state so my device is able to sleep and not to waste the energy but the response time for rejoining the PAN is much longer.

Regards,
Pawel

0 IUsedToBeARealPerson (M-W) over 7 years ago in reply to ppielorz

TI__Guru 58425 points

Hi Pawel,

I'm still awaiting some feedback on this but as of now it seems to be a bug in the example. I will let you know if anything else comes up but for now I think you should go with your Task_sleep fix.

Sub-1 GHz

Sub-1 GHz forum

RTOS/CC1310: CC1310 can't sleep during orphan state