Re: [Paparazzi-devel] Use of shifting operators in Paparazzi

[Alexandre Bustico]

Le 26/10/2015 18:41, Flavio Justino a écrit :
> Thanks for replying Felix ;) One last question: what about Double 
> instead of float? What is the main difference (not theoretically as a 
> programming type but for the case of paparazzi objectives). Do you 
> think that it will have any interference in the results relatively to 
> float? Thanks man =)


In term of performance, float (single precision floating point) is done 
by hardware on stm32f4 class of microcontroler,
but double (double precision floating point) is not accelerated and done 
by a library which come with gcc.
Using double will add cpu load which must be evaluated.

Future microcontrolers, based on arm cortex m7 core, will have 
accelerated double precision in hardware.

--
Alexandre