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[Paparazzi-devel] heading with AHRS_USE_GPS_HEADING but no GPS connected

From: alonso acuña
Subject: [Paparazzi-devel] heading with AHRS_USE_GPS_HEADING but no GPS connected
Date: Tue, 11 Feb 2014 01:36:09 -0600
Hello. 
I have seen several interesting things:
 - somehow the heading is accurately calculated even when the GPS is not connected. I cannot understand where the heading value is coming from. 
- when the chip is powered up the heading is set to -BODY_TO_IMU_PSI instead of 0 as documented in the file
 
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