The STM32F4 series parts are cheap, fast, powerful for their class. Not
really on par with the Cortex A8 and Atom machines but great for embedded.
I've got a little audio signal processing project based on the STM32F4
going now:
http://ebrombaugh.studionebula.com/synth/stm32f4_codec/index.html
I've been writing code on this for the last few weeks and have a few
basic audio effects running on it. I've tried some frequency domain
processing as well - 128-sample real floating point FFT/IFFT takes about
120us with the CPU running at max rated clock speed.
Definitely worth checking out if you've got modest DSP to do on a budget.
Eric
On 09/25/2012 09:28 AM, Nigel Redmon wrote:
I haven't had time to do much with it yet, but the STM32F4DISCOVERY board is
bargain, with single precision floating point and DSP features (single cycle
MAC, saturated arithmetic, SIMD), and a bunch of nice goodies on the baord,
$14.55 at Mouser.
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