Using radio without external 32MHz clock

[Sylvio]

Hi, 

I have read that using the external 32MHz crystal is mandatory for proper BLE radio operation.

However, is there any internal clock that could be used instead of the external just for checking BLE as beacon availability?

We have ordered the 32MHz xtal but it will take 3 days to get here. We just want to speed things up.

Thanks.

[Dmitry]

Hi,

BLE functionality requires clock source with 40ppm tolerance. An internal RC oscillator has up to 6% (60000ppm) tolerance, it definitely cannot be used for BLE.

[Sylvio]

Thanks!