not sleep automatic

dsp999

Other Parts Discussed in Thread: CC2541

cc2541, ble 1.3.2.

static void Set_Sleep(PACK_P ppack)
{
uint8 turnOffAdv = FALSE;
GAPRole_SetParameter( GAPROLE_ADVERT_ENABLED, sizeof( uint8 ), &turnOffAdv );
GAPRole_TerminateConnection();
//ensure no other task, cpu goes into sleep automatic
//clear and stop all events
osal_start_timerEx( simpleBLEPeripheral_TaskID, SBP_LONG_PERIODIC_EVT, 10000);
}

if ( events & SBP_LONG_PERIODIC_EVT )
{
return ( events ^ SBP_LONG_PERIODIC_EVT );
}

after Set_Sleep, I see current goes to 1uA, after 10second, current goes up back at 8mA, not sleep anymore. (project POWER_SAVING enabled)

why?

over 9 years ago

0 YiKai Chen over 9 years ago

Guru 735685 points

Can you specify BLE stack version and example that your test is based on?

0 dsp999 over 9 years ago in reply to YiKai Chen

Expert 1495 points

have said, ble 1.3.2 stack version.
based on simpleBLEPeripheral sample.

0 YiKai Chen over 9 years ago in reply to dsp999

Guru 735685 points

If you run default simpleBLEPeripheral sample with POWER_SAVING enable, do you still see this problem? By the way, I suggest you to use latest BLE stack 1.4.1.

0 dsp999 over 9 years ago in reply to YiKai Chen

Expert 1495 points

I think no. because I have other short interval (about 1s) event running in this project and see current changes between 1mA and 1uA, so I think system automatic sleep between that 1s event. but why that long interval 10s event not sleep?

0 YiKai Chen over 9 years ago in reply to dsp999

Guru 735685 points

Do you add any other code except this 10 seconds periodic event?

0 dsp999 over 9 years ago in reply to YiKai Chen

Expert 1495 points

no other.

0 YiKai Chen over 9 years ago in reply to dsp999

Guru 735685 points

I suspect that you don't do power consumption measurement in correct way. You can try to refer to Measuring Bluetooth ® Low Energy Power Consumption application note and do power consumption measurement accordingly.

0 dsp999 over 9 years ago in reply to YiKai Chen

Expert 1495 points

I don't think so. I am very confident on it. the measurement and result is very simple and obvious. we are not saying very small detail. we are saying that the meter shows stable number on it. and we can also see that number change if we set other event at about 500ms, the number changes between 0 and 1mA, which means the system does sleep during events.

0 JXS over 9 years ago in reply to dsp999

TI__Guru** 105180 points

Hello,

Can you step through the osal_run_system with the CC Debugger to see if any events are set that would keep the system from entering sleep?

Best wishes

0 dsp999 over 9 years ago in reply to JXS

Expert 1495 points

I will try but as far as I know the debug not work well.
just now I add an macro, HAL_KEY=FALSE.
before this change, it goes to sleep automatic after advertising 10s (our software set advertising time 10s). current measure show <1uA.
after this change, it does not go to sleep, current measure show it keep working >1mA.
maybe it is some io leak current?

0 dsp999 over 9 years ago

Expert 1495 points

I have new information.

when not connected, the ble device can goes into sleep with 0 current. after connected, although I send Set_Sleep command and the system does goes into sleep immediately, but, it will wake up and advertise in about every 10s around. I did see my app shows it connected again and over again.

why? I have stopped adv and terminated connection in the set_sleep function! why ble device wake up every 10s? I did many test, sure no other tasks.

0 dsp999 over 9 years ago in reply to dsp999

Expert 1495 points

sorry, I find an event is running, after stop it, all ok now.

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not sleep automatic