Re: [Paparazzi-devel] px4 autopilot and paparazzi

[Tilman Baumann]

On 29/01/13 21:09, Felix Ruess wrote:

> Option 2: posix/nuttx support
> It might be a good option to create a rather generic "posix" arch. 
> Since nuttx apparently aims to be very posix compliant a lot of stuff 
> would probably run under nuttx and linux as well.
> This would also be a good step towards supporting paparazzi to run on 
> linux (on a gumstix/beagleboard/raspberrypi) or on the Parrot AR 
> Drone. There has already been some success regarding the latter.
> I don't know much about nuttx itself and how low level driver (e.g. 
> SPI and I2C with DMA) are handled...
Oh posix, was a good key word.
I'm pretty sure I have seen more than one ppz fork that aimed to run the 
autopilot on Linux. Porting effort should be quite low if any of those 
succeeded.
I remember Marcus Wolschon said here on the list that he did it already. 
But I could not find his sources.
And another abandoned project http://www.moreproductive.org/autopilot/ 
and sources https://github.com/pchickey/paparazzi-linux-release
Going from there to a POSIX based RTOS should be fairly straight forward.
There are going to be differences in drivers of course.