[GitHub] wes3 opened a new pull request #237: nimble/ll: Request/release hfxo using mynewt API

[GitBox <gi...@apache.org>]

wes3 opened a new pull request #237: nimble/ll: Request/release hfxo using mynewt API
URL: https://github.com/apache/mynewt-nimble/pull/237
 
 
   This change is to use a new API committed to mynewt core that
   will request the hfxo to be turned on and release it when the
   hfxo is no longer desired. One reason to do this is that an
   application may desire the hfxo to be on and nimble would
   blindly turn it on/off when it wanted to. Note that the API
   requires that the request/release be paired; you cannot release
   without a request and if you request without a release the hfxo
   will be on continuously.
   
   A final note: the nimble link layer assumes that when it requests
   the hfxo it needs to settle. If the hfxo was already on the code
   would not need to wait for the settling time. The code has not
   been updated to handle that case. This is not going to cause
   any issues; it will operate as it did before. However, future
   improvements could be to check if the hfxo was already on and
   settled and thus not have to wait for the settling time.

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