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Re: [Paparazzi-devel] ARM Cortex-M4
From: |
Hector Garcia de Marina |
Subject: |
Re: [Paparazzi-devel] ARM Cortex-M4 |
Date: |
Fri, 14 Oct 2011 10:01:25 +0200 |
I already have this prototype board (I bought it at mouser).
One interesting benchmarks employing FreeRTOS:
Cholesky factorization 7x7 float @100Hz:
STM32F103 -> takes around 4% of the proccesor.
STM32F4 -> less than 1%.
FIR / IIR filters with the new DSP instructions are really faster in STM32F4. Now an intensive
pre-processing raw values from sensors is possible with "no-delays". You can put a higher sample frequency and apply a 16th order Butterworth without low computational cost (useful when you have high freq vibration/noise for instance).
Héctor.
- [Paparazzi-devel] ARM Cortex-M4, Prof. Dr.-Ing. Heinrich Warmers, 2011/10/14
- Re: [Paparazzi-devel] ARM Cortex-M4,
Hector Garcia de Marina <=
- Re: [Paparazzi-devel] ARM Cortex-M4, Piotr Esden-Tempski, 2011/10/14
- Re: [Paparazzi-devel] ARM Cortex-M4, Hector Garcia de Marina, 2011/10/14
- Re: [Paparazzi-devel] ARM Cortex-M4, Piotr Esden-Tempski, 2011/10/14
- Re: [Paparazzi-devel] ARM Cortex-M4, Eric Parsonage, 2011/10/14
- Re: [Paparazzi-devel] ARM Cortex-M4, Hector Garcia de Marina, 2011/10/14
- Re: [Paparazzi-devel] ARM Cortex-M4, Piotr Esden-Tempski, 2011/10/14
- Re: [Paparazzi-devel] ARM Cortex-M4, Hector Garcia de Marina, 2011/10/14
- Re: [Paparazzi-devel] ARM Cortex-M4, Meier Lorenz, 2011/10/14
- Re: [Paparazzi-devel] ARM Cortex-M4, Hector Garcia de Marina, 2011/10/14
- [Paparazzi-devel] Ubuntu 11.10 ivy-ocaml issue & temporary fix, Gareth Roberts, 2011/10/14