Is there any API on S120 to know the channel number

RE: Is there any API on S120 to know the channel number

sara — Thu, 20 Apr 2017 08:04:17 GMT

Hi Sigurd, understood, thanks for your help.

RE: Is there any API on S120 to know the channel number

Sigurd — Wed, 19 Apr 2017 14:42:27 GMT

Hi sara,

It will by default scan on all 3 advertising channels (37, 38, 39). It will change channel each time ll_scan_start() is called, but you can set it to scan on one specific channel by calling radio_init(channel) with the channel you want to scan. See line 534 here.

RE: Is there any API on S120 to know the channel number

sara — Fri, 07 Apr 2017 07:55:28 GMT

Hello Sigurd, refer to the link [https://devzone.nordicsemi.com/question/49420/scan-in-a-single-channel/]

Does it mean that it can't get the channel where the advertisement packets was received on, but it can ONLY scan on the specific channel? Although I still don't know what the channel is scanned in the sample code from that link.

Thanks again.

RE: Is there any API on S120 to know the channel number

Sigurd — Fri, 07 Apr 2017 07:45:37 GMT

Hi sara,

Unfortunately, the SoftDevice does not support scanning (central role) on specific channels. There is currently no plan to add this functionality, but it may change in the coming months. Note that you can specify the advertising channel when advertising (peripheral role) using ble_gap_adv_params_t::ble_gap_adv_ch_mask_t when you call sd_ble_gap_adv_start().

RE: Is there any API on S120 to know the channel number

sara — Fri, 07 Apr 2017 03:49:58 GMT

Hello Sigurd, is there any method to get the channel where the advertisement packet was received on? Or will Nordic Team add the API of this function in next version? (nRF52) Thanks.

RE: Is there any API on S120 to know the channel number

Sigurd — Mon, 06 Feb 2017 09:58:49 GMT

Hi,

The SoftDevice will scan all three advertising channels, and there is no API to get the channel where the advertisement packet was received on. The information that the SoftDevice gives you about the packet can be found in ble_gap_evt_adv_report_t.