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Re: [Paparazzi-devel] Should the complier I installed fit for my paparaz

From: Felix Ruess
Subject: Re: [Paparazzi-devel] Should the complier I installed fit for my paparazzi project?And why my plane 's direction doesn't point to the moving direction?
Date: Wed, 28 May 2014 17:51:34 +0200


that should be ok.
Not however that for building the autopilot firmware you should use the arm-none-eabi-gcc as cross-compiler, this is different than setting gcc as "default" compiler for OSX!
You should be able to use llvm/clang for the stuff running on your PC/labtop just fine...

But what did you have as cross compiler before? If you were really using llvm/clang for this before, how did yo manage to set that up?

Cheers, Felix

On Tue, May 27, 2014 at 6:09 PM, 心如烛光 <address@hidden> wrote:
    Thank's for your help.I have downloaded and installed a standard gcc compiler which fits for my OSX(mountain lion 10.8.5).Then I set gcc as the default complier for my OSX.And now when my paparazzi firmware is building,What it shows at the beginning is:

Using CC   = /opt/local/bin/arm-none-eabi-gcc
Using LD   = /opt/local/bin/arm-none-eabi-gcc
Using CP   = /opt/local/bin/arm-none-eabi-objcopy
Using DMP  = /opt/local/bin/arm-none-eabi-objdump
Using NM   = /opt/local/bin/arm-none-eabi-nm
Using SIZE = /opt/local/bin/arm-none-eabi-size
GCC version:
arm-none-eabi-gcc (GNU Tools for ARM Embedded Processors) 4.7.3 20121207 (release) [ARM/embedded-4_7-branch revision 194305]

Is this OK for my paparazzi building?

Another question,I want to know that the direction of the plane what is show on the screen of the GCS is determined by the magnetic compass.Or it is determined by the GPS?Since I fly lisa/m2 with float_dcm,which should not need the magnetic compass data to calculate the direction of the plane.I don't calibrate the magnetic compass.But I found that the direction of the plane doesn't point to the moving direction.Sometimes it even against the moving direction!Dose it relate to my plane crashing?And how could I fix it?Thanks a lot!!!


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