TX Power Concerns between Firmware

[Michal Kazior]

On 29 October 2014 23:56, Pushpal Sidhu <psidhu at gateworks.com> wrote:
> Hi all,
>
[...]
> The follow are my results:
> | Firmware     | txpower (software) | reading | +15dBm offset |
> | 10.1.467.2-1 | 15                       | -6         | 9                     |
> | ''                  | 10                       | -10.6     | 4.4
>              |
>
> Then same radio(s), different firmware:
> | Firmware        | txpower (software) | reading | +15dBm offset |
> | 999.999.0.636 | 15                        | 10.3     | 25.3                |
> | ''                    | 10                        | 7.5       | 22.5
>                |
>
>
> As you can see, the results are wildly different. Is this something
> that the driver can fix? Or is this a firmware problem? It goes
> without saying that this is a big danger for devices etc connected to
> the radio.

Thanks for reporting.

My rough guess is the 999.999.0.636 blob has an old otp binary
embedded inside which doesn't support the XB140 design. We probably
need to update it.

@Kalle: Now that I think about it - do we really need to embed otp binaries?


Michał