CC2640: Forcefully masking BLE channels and Adaptive Frequency Hopping

Vishnu Beema

Part Number: CC2640

We are using CC2640. I have few queries on channel masking.

1) Can you please let me know whether we can forcefully mask BLE channels so that BLE data channels should not hop in those masked channels. If so, please let me know the functions.

2) Currently, whether Adaptive Frequency hopping is enabled by default, so that due to noise, those channels should be backlisted automatically. Whether this feature is present. If not how to enable.

3) Whether can I mask BLE channels forcefully on Peripheral or do I need to do only on Central devices.

Thanks & Regards

Vishnu Beema

over 4 years ago

0 Clément over 4 years ago

TI__Guru** 101460 points

Hi Vishnu,

The feature consisting in "Forcefully masking BLE channels" is called channel map update (I am telling you in order to help your future researches). This feature is supported by the CC2640 device. You should use the functions HCI_LE_SetHostChanClassificationCmd() (see here for an usage example). The function HCI_LE_ReadChannelMapCmd may also help you (see here for other information).

We do not provide any Adaptive Frequency Hopping (AFH) solution. However, a lot of threads discussing this possibility exist on E2E.
Here are some of them:

To finish, channel map update can be initiated both by the peripheral or the central (see BLUETOOTH CORE SPECIFICATION Version 5.1 | Vol 6, Part B, §5.1.2 for more details).

I hope this will help,

Best regards,

0 Vishnu Beema over 4 years ago in reply to Clément

Expert 1450 points

Thank you for your quick and detailed response.

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CC2640: Forcefully masking BLE channels and Adaptive Frequency Hopping