Power saving during advertisement

Mano Kutty

Intellectual 895 points

Hi,

I am using cc2541- Keyfobdemo to my project.

I need to save power during advertisement.

Here i am attached image which is carrying the information of current advertisement.

1. Red circle shows current advertising power.

2. Green line shows current voltage consuming by advertising (Here i need to reduce).

3. Again the other two circles shows 100 mV and 250 ms, Which means the ratio of current power taking.

My Requirements:

I need reduce the Power of Advertising- without changing advertising interval.

Tried methods:

{
int8 initialTxPowerLevel = 0;

ProxReporter_SetParameter( PP_TX_POWER_LEVEL, sizeof ( int8 ), &initialTxPowerLevel );
}

2. HCI_EXT_SetTxPowerCmd( HCI_EXT_TX_POWER_MINUS_0_DBM );

3. HCI_EXT_SetTxPowerCmd( HCI_EXT_TX_POWER_MINUS_6_DBM );

4. HCI_EXT_SetTxPowerCmd( HCI_EXT_TX_POWER_MINUS_26_DBM );

5. PP_DEFAULT_TX_POWER

6. And i am using 1285ms advertising interval for maximum and minimum.

After this modification transmit power got changed during connection.

But Still i am unable to change the transmit power of advertising.

I welcome you all yours suggestions to solve this problem.

Best wishes with thanks,

MANO MM.

over 11 years ago

0 Kevin Lockwood over 11 years ago

Expert 1035 points

I believe you may have to stop Advertising, change the TX power, then restart Advertising. Not sure if it can change live.

0 Dhaval V over 11 years ago in reply to Kevin Lockwood

Genius 4470 points

Hi,

Have you tried changing the power level within the advertising power?? And also at the same time set TXPOWER register as per your requirement.

This will change the advertising and connection power level.

Hope this helps!!

Thanks,

Dhaval

0 Dhaval V over 11 years ago in reply to Dhaval V

Genius 4470 points

I meant within Scan Response Data. You can set the amount of power you are using in the Scan Response Data.

0 Mano Kutty over 11 years ago in reply to Dhaval V

Intellectual 895 points

Hi Kevin Lockwood and Dhaval V,

Thanks for your valuable reply.

I tried this options, But i am unable to change the advertising power in all channel mode.

Here i am using all channels-- GAP_ADVCHAN_ALL (GAP_ADVCHAN_37 | GAP_ADVCHAN_38 | GAP_ADVCHAN_39)

But if i am using single channels - GAP_ADVCHAN_37 or GAP_ADVCHAN_38 or GAP_ADVCHAN_39 i am able to modify the transmit power.

Actually, i need to reduce the transmit power in all channel modes.

In this situation what is the possibilities to reduce the advertisement transmit power?

Best wishes with thanks,

Mano MM

0 Dhaval V over 11 years ago in reply to Mano Kutty

Genius 4470 points

Have you tried after setting TXPOWER register?

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Power saving during advertisement