AVR-Chat

----- Original Message ----- 
From: "syberraith" <syberraith@yahoo.com>
To: <AVR-Chat@yahoogroups.com>
Sent: Saturday, November 07, 2009 5:46 PM
Subject: [AVR-Chat] Looking for the Right AVR for my Project


>I am designing a guitar pedal effect and need a MCU to sample the signal, 
>perform a non-linear function, then generate a control current.
>
> The project requires one ADC and one DAC these can be separate devices.
>
> The non-linear function can be performed without a FPU using CORDIC 
> routines.  These would take a significant number instruction cycles to 
> perform.
>
> The function could also be performed with a look up table, which would 
> require significant memory.
>
> I would like to have a sample rate as high as possible, 200K samples per 
> second would be the highest desired, with 46K being the absolute lowest 
> required.
>
> I have been looking at 16 bit devices in the 30 MIPS range and up.  Most 
> of the ones I have seen with sufficient speed have been excessive 
> elaborate.
>
> So, does anybody know on a simple device with enough speed for my project?

dsPIC?

Leon