Configuring Advertisement channels and Connection channels

[beemavishnu]

Hello,

 

I am using nRF52840, SDK_16.0.0, S140 SoftDevice and Segger 4.16 for flashing the image. I am using ‘ble_app_blinky’.

 

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.

 

2) Similarly even once Connected, based on co-existence with other wireless technologies, I want to mask few channels.

 

Are there any such settings.

 

Thanks & Regards

Vishnu Beema

[bjorn-spockeli]

Hi Vishnu

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.

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()

2) Similarly even once Connected, based on co-existence with other wireless technologies, I want to mask few channels.

 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