topic Re: Extended connectable Advertising and Scan Response Data Setup Failed in Wireless MCU

Extended connectable Advertising and Scan Response Data Setup Failed

nidhintomy — Thu, 27 Oct 2022 09:40:09 GMT

I am using 'frdmkw38_adv_ext_peripheral_bm' example.

I tried to add scanresponse data in connectable advertising. But returns 'gAdvertisingCommandFailed_c'.

How to implement scan response data with connectable advertising in extended advertising feature ?

Best Regards, Nidhin

Re: Extended connectable Advertising and Scan Response Data Setup Failed

EduardoZamora — Thu, 27 Oct 2022 22:35:24 GMT

Hello,

gAdvertisingCommandFailed_c event is received when advertising could not be enabled or disabled. Reason should be contained in gapAdvertisingEvent_t.eventData.failReason.

Also, please take a look at the Bluetooth Low Energy Demo Application User's Guide, section 5.15 Extended Advertising Peripheral and Extended Advertising Central; and Bluetooth Low Energy Application Developer's Guide, section 4.2.1 Advertising (Peripheral setup). You can find these documents inside the KW38 SDK doc folder > docs > wireless > Bluetooth.

Regards,
Eduardo.

Re: Extended connectable Advertising and Scan Response Data Setup Failed

nidhintomy — Fri, 28 Oct 2022 06:56:32 GMT

Hi @EduardoZamora

I think i found the answer.

bleResult_t Gap_SetExtAdvertisingData ( uint8_t handle, gapAdvertisingData_t* pAdvertisingData, gapScanResponseData_t* pScanResponseData );

Either of the pAdvertisingData or pScanResponseData parameters can be NULL, but not both. For extended advertising (BIT4 = 0) only one must be different than NULL – the scannable advertising bit (BIT1) indicates whether pAdvertisingData (BIT1 = 0) or pScanResponseData (BIT1 = 1) is accepted. The total amount of Advertising Data shall not exceed 1650 bytes.
Application should wait for a gExtAdvertisingDataSetupComplete_c event in the Generic Callback.

So it is either connectable advertising or scannable advertising.

Also from BLE SIG V5.3 Doc i found this->

So What i understand is we can't use both connectable and scannable in BLE Extended advertising.

Could you please confirm this ?

Best Regards,

Nidhin

Re: Extended connectable Advertising and Scan Response Data Setup Failed

EduardoZamora — Mon, 31 Oct 2022 17:53:56 GMT

Hello,

Your understanding is correct. According to the Bluetooth 5.0 Specification, advertising cannot be scannable and connectable at the same time for this type of advertisement.

Regards,
Eduardo.

Re: Extended connectable Advertising and Scan Response Data Setup Failed

nidhintomy — Tue, 01 Nov 2022 04:31:25 GMT

Hi @EduardoZamora

Thanks for confirming.

Best Regards,

Nidhin