RE: Configuring Advertisement channels and Connection channels

beemavishnu — Wed, 20 Nov 2019 10:22:28 GMT

Thank you for your inputs

RE: Configuring Advertisement channels and Connection channels

bjorn-spockeli — Wed, 20 Nov 2019 09:14:10 GMT

Hi Vishnu

[quote user=""]1) I want to configure Advertisement channels for our testing. Instead of 37, 38 and 39 I want to start advertisement only in channel 37.[/quote]

You can set the advertisment channel mask by setting the ble_gap_adv_params_t::channel_mask, which is passed to sd_ble_gap_adv_set_configure()

[quote user=""]2) Similarly even once Connected, based on co-existence with other wireless technologies, I want to mask few channels.[/quote]

When you're connected you can set the channel map using the sd_ble_opt_set() function, see the S140 SoftDevice v7.0.1: ble_gap_opt_ch_map_t Struct Reference. Note, its the BLE central that dictates the used channel map, hence any channel map update request from a peripheral may be rejected by the central.

Best regards

Bjørn