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Posted to notifications@mynewt.apache.org by "Andrzej Kaczmarek (JIRA)" <ji...@apache.org> on 2017/09/27 11:52:00 UTC
[jira] [Resolved] (MYNEWT-783) Improve controller for Long Range in
Nordic nrf52840
[ https://issues.apache.org/jira/browse/MYNEWT-783?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andrzej Kaczmarek resolved MYNEWT-783.
--------------------------------------
Resolution: Fixed
Fix Version/s: v1_3_0_rel
> Improve controller for Long Range in Nordic nrf52840
> ----------------------------------------------------
>
> Key: MYNEWT-783
> URL: https://issues.apache.org/jira/browse/MYNEWT-783
> Project: Mynewt
> Issue Type: Improvement
> Security Level: Public(Viewable by anyone)
> Components: Nimble
> Reporter: Łukasz Rymanowski
> Assignee: Andrzej Kaczmarek
> Fix For: v1_3_0_rel
>
>
> It has been observed that when using PHY CODED, T_IFS is not stable.
> It has been observed that it differs sometimes even 16 us from specified 150. This leads to connection timeouts with some controllers.
> After couple of discussion it turns out that it is related to SHORTS we use for TX/RX. It turns out on NRF52 it is better to have own timers in the controller and not relay on SHORTS from the radio especially when using PHY CODED.
> In this Jira we should understand how big changes it requires and possibly try to do it.
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