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Re: [Paparazzi-devel] Errors with magnet sensor

From: Felix Ruess
Subject: Re: [Paparazzi-devel] Errors with magnet sensor
Date: Wed, 3 Apr 2013 14:08:17 +0200

Hi Heinrich,

it would still be good to hear exactly which module/driver showed this behavior.
And if it still occurs in master.

Cheers, Felix

On Tue, Mar 12, 2013 at 11:24 AM, Felix Ruess <address@hidden> wrote:
Hi Heinrich,

could you please be a bit more specific?
This is about the hmc mag? Which one, 5843 or 5883?
Which driver are you using? One of the hmc_58xx.xml or hmc_5843.xml modules or some imu driver?

At least for the hmc_58xx peripheral driver in master I haven't seen this problem.

Cheers, Felix

On Sat, Mar 9, 2013 at 8:01 PM, Chris <address@hidden> wrote:
If this is hardware related then i dont't think there is much anyone can do but discard or repair the readings every 61st polling or if a big abrupt change in value is detected, obviously this is a workaround.
Thank you for the information and btw good job finding this bug!

On 03/09/2013 02:24 PM, wrote:
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Today's Topics:

    1. Errors with magnet sensor (Prof. Dr.-Ing. Heinrich Warmers)


Message: 1
Date: Sat, 09 Mar 2013 13:20:55 +0100
From: "Prof. Dr.-Ing. Heinrich Warmers" <address@hidden>
To: address@hidden
Subject: [Paparazzi-devel] Errors with magnet sensor
Message-ID: <address@hidden>
Content-Type: text/plain; charset="iso-8859-15"; Format="flowed"

yesterday we found that every 61th. measure the magnet measure values
are in the wrong order.
Instead of x y z we get y z x..
We use the sensor i2c  direct connected to the MCU (LPC2148  software
version 4.03).
Has someone a idea to fix the error?


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