[LEDE-DEV] calib table can damage some cpe510's

Alexander Couzens lynxis at fe80.eu
Wed Jun 22 12:37:52 PDT 2016


On Wed, 22 Jun 2016 09:47:22 +0200
Thomas Hühn <thomas at inet.tu-berlin.de> wrote:

> Could you explain a bit your experimental setup and observation that
> lead you to the conclusion the high power calibration is causing the
> device a damage ? I do have 8x CPE510 in our mesh up & running with
> the high power calibration table with astonishing radio performance
> and without any problem. So if the version number could be used to
> differentiate the effected devices, we might be using it. And while I
> was looking together with Felix for this calibration table adress on
> the CPE510 under the original firmware, we might just look at such a
> different version of the CPE510 as well. 

Hi,

I'm sorry, that I couldn't provide a more detailed report, because I
was in a hurry.

Daniel Golle reported a damaged device when using the high power table
together with a high frequency (channel 160 / ~5.8ghz).
I'm not quite sure this is related, but I want to be safe and reverted
the high calibration table patch quickly.

> Second question, for the
> CPE210, is there also a high power calibration table like
> “KSEG1ADDR(0x1fff5000)” usable ?
No, it's not usable, because the cpe210 only has 1 calib table.

best,
lynxis
-- 
Alexander Couzens

mail: lynxis at fe80.eu
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