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Posted to notifications@mynewt.apache.org by "Łukasz Rymanowski (JIRA)" <ji...@apache.org> on 2017/06/15 12:56:00 UTC

[jira] [Assigned] (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 ]

Łukasz Rymanowski reassigned MYNEWT-783:
----------------------------------------

       Assignee: Andrzej Kaczmarek
    Component/s: Nimble

> 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
>
> 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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