Sorry
I missed this one some 4 weeks ago:
http://lists.gnu.org/archive/html/paparazzi-devel/2008-06/msg00124.html
for everyone who waited for an answer like me...
Regards
volker
-------- Original-Nachricht --------
Datum: Sun, 20 Jul 2008 12:36:22 +0200
Von: address@hidden
An: address@hidden
Betreff: [Paparazzi-devel] ADXRS300 Gyro basics
Group
I am about to use an ADXRS300 Gyro in my airframe. Former IDG300 Gyro had a significant impact on GPS performance even after implementing a separate 3V3 power supply .
Is it advisable to supply it via tiny´s 5V rail ? which pins have to be connected apart from GND, 5V, Rateout ?
Can someone please comment calibration, means setting neutrals especially temperature and 2V5 reference?
Can someone also please comment the marked lines from the airframe file:
<section name="GYRO" prefix="GYRO_">
<define name="ADC_ROLL_NEUTRAL" value="520"/>
<define name="ADC_TEMP_NEUTRAL" value="476"/>
-> <define name="ADC_TEMP_SLOPE" value="0"/>
<define name="DYNAMIC_RANGE" value="300" unit="deg/s"/>
-> <define name="ADXRS300_RESISTOR_BRIDGE" value="(3.3/(3.3+1.8))"/>
<define name="ADXRS300_SENSITIVITY" value="5" unit="mV/(deg/s)"/>
-> <define name="ROLL_SCALE" value="3.3*1000./1024./(GYRO_ADXRS300_SENSITIVITY*GYRO_ADXRS300_RESISTOR_BRIDGE)" unit="deg/s/adc_unit"/>
<define name="ROLL_DIRECTION" value="-1."/>
</section>
Anything else to setup and care for?
Thanks a lot
volker
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