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Re: [Paparazzi-devel] ETS Airspeed Sensor with YAPA2 on I2C

From: Helge Walle
Subject: Re: [Paparazzi-devel] ETS Airspeed Sensor with YAPA2 on I2C
Date: Thu, 20 Jun 2013 23:11:22 +0200

Hi Jorge

I tested your airframe file as received on my TWOG, and the GCS was not populated.

Then I commented out a few lines:
<define name="MEASURE_AIRSPEED"/> not needed,
plus the lines for the chimu.

The GCS was now populated and I could see the message AIRSPEED_ETS with values when I blew into the tube.

I attach the modified airframe file, the build log, and two screenshots.

Could you check this?

I use branch v4.2.


2013/6/20 Jorge Pantoja <address@hidden>
Hello Helge and Eduardo,

Thank you so much for your reply. Please, find attached the airframe file I am using. I tried what Eduardo suggested and this is what I am getting: The autopilot board turns on and after a second it freezes as seen in the picture I attached. As you can see, the airspeed sensor and the board are turned on and only the autopilot board is frozen.

Also, I tried switching the I2C0 port to I2C1 on the code by adding under the airspeed_ets.xml module:

<define name="AIRSPEED_ETS_I2C_DEV" value="i2c1"/>

And under the firmware:

<define name="USE_I2C1"/>

This change made that the autopilot and the sensor to appear to be working fine. I mean, once I used the I2C1 instead of the I2C0 port the autopilot didn't freeze but I still didn't get the AIRSPEED_ETS message on my log file. Also, changing to the I2C1 port didn't require the pull-up resistors. This makes me wonder if I am using the correct I2C port again.

Please let me know your thoughts.

Best Regards,
Jorge Pantoja
Program Manager/Liaison

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Attachment: PiqueroUAV_1.xml
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Attachment: Screenshot_GCS.png
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