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CC2640R2F: Low power deep sleep mode to keep BLE connected

jinbae kim
Intellectual 490 points
Part Number: CC2640R2F


Hi

I am developing a remote control with ble communication.

The profile is used as a custom, and there in no problem.

I have to enter the low power mode due to a battery problem. Can I enter the low power mode while maintaining the ble connection?

In one of the low power modes listed in the datasheet (Active-Mode MCU: 61 µA/MHz)

Can I keep the ble connection?

Page 23 of the link below LDPS(is the mode I want)

(https://site.eettaiwan.com/events/sf/sources/05_TI.PDF)

Thanks!

  • +1
    TI__Guru** 101460 points

    Hi,

    Generally speaking the power driver will set the device in the lowest power mode available. The BLE stack will then wake up the device when needed to perform the BLE operations (advertising, connection events, etc.). In other words, by default the device alternates phases where it is in standby and active modes and this does not disturbs the BLE operations (including BLE connection).

    With that said, the average current consumption will depend on many parameters. You can leverage "Measuring CC13xx and CC26xx current consumption" and our BT-POWER-CALC

    to have a good estimation of the current consumption in your specific use-case.

    I hope this will help,

    Best regards,