is a 33kHz crystal required to use BLE?

Development Boards Artemis
1

We have designed a board using the Artemis module but cannot get the

bluetooth working. We are using an example from the Ambiq library.

It appear the code is not working because it is trying to use the

non-existent 33kHz clock.

Our question therefore is whether an external 33kHz crystal is always

needed to use BLE, or do we need to hack the Ambiq code to remove the need

for the crystal?

2

Thanks for reaching out to us on this.

This is fairly complex, but perhaps this document has the relevant info? https://www.ti.com/lit/an/swra499c/swra … 6036086653

Hope this helps, and happy sparking!

3

Many thanks for the link. We will investigate further.

The Artemis module has the 32MHz crystal but not the 33khz - we therefore assume the BLE can be configured to use the internal clock

4

we have successfully configured the BLE to not require 32kHz crystal. thank you.

5

Great!