Re: [Paparazzi-devel] I2C fault on LISA/L

[Felix Ruess]

Hi Xavier,

first a clarification: the new I2C driver is not the default yet for a reason.. it is still missing watchdogs.
See https://github.com/paparazzi/paparazzi/issues/71

Enabling the new driver via this define is mainly meant for testing.

Also the AHRS_ALIGNER_LED is supposed to blink until the aligner is locked (gyro bias initialized) and stay on after that...
Only the gyro and mag measurements are not updated anymore?

It would be great if you could try to debug that: http://paparazzi.enac.fr/wiki/DevGuide/JTAG-Debug

I just added a filed to the I2C_ERRORS message to indicate for wich bus number the errors are reported...
Would probably be helpful to post the I2C_ERRORS messages you get (after git pull && make).
I'm not sure if one of the devs actually has that exact combination...

Cheers, Felix

On Fri, Jun 15, 2012 at 2:45 PM, Xavier RIVIERE <address@hidden> wrote:

Hi,

I posted some days ago about IMU/I2C problems, and I first believed that my problem was solve... I was wrong

Here is my configuration :
- Lisa/L with aspirin 1.5
- I'm using the new driver - <configure name="USE_NEW_I2C_DRIVER" value="1" />
- v3.9 branch up to date


Here is my problem :

When I start, everythings is good. The IMU led is blinking, and I receive data on GCS. But after some seconds, the led stop blinking, and values on gyro and mag don't change anymore.

My thought is that the error handler have a bug somewhere, and after a NACK or another error event, the line stay open, and no actualisation occur.

So, please : is there somebody with same configuration and the same problem ???  is there somebody working on this issue ???

Many thanks

Xavier

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