CODEWITHSUNDEEP
bluetoothbluetooth-lowenergybluez
user2423804
user2423804

Reputation: 145

BLE advertising parameters

How can we advertise on a single advertising channel using bluez 4.101?

I have seen that there is le_set_advertising_parameters structure but that is not used, but in bluez-5.7 code it is used where chan_map is set to 7 chan_map=7. What does this assignment mean? How is this mapping done?

Can that be done in bluez-4.101?

Upvotes: 2

Views: 1514

Answers (1)

user2009449
user2009449

Reputation: 181

Adv channels must be circulated 37,38,39 for BLE to work according to spec. Once the connections has been established it is possible to exclude channels that have interference from wifi or other. The allowed channels at the channel mapping. In certain chipsets you can reduce advertising channels for debugging purpose. Like if your ble sniffer only listened on one channel. This is a bitmap with one bit per channel. 7 means all three adv channels. 1,2,4 is one channel each.

Upvotes: 1

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