[sdiy] New DSP for SDIY?

[Eric Brombaugh]

Antti Huovilainen wrote:
> On Wed, 17 Dec 2008, Paul Maddox wrote:
> 
>> Ironic, I was looking for a fast 32bit CPU, might get one of them, I'd 
>> like to see the datasheet/schemtic for the USB stick one.
> 
> CPU or DSP?
> DSPs are generally rather poor at non-sequential tasks (such as indirect 
> memory addressing). ARM is a good choice for fast and cheap 32 bit CPU.

Agree. Cheap processors (some Philips/NXP ARMs for ~$3 in single qty), 
widely available development tools (Mac OS X, Linux, WinXX both free and 
pro), reasonably fast processors (40 - 90 MHz for ARM7, up to 600MHz for 
high-end SoC versions depending on how much you want to spend) and 
decent peripherals.

Just don't expect fantastic performance from the low-end parts if you 
need DSP or tight/fast real-time interrupt response (see my previous 
rants about this :) ).

Eric