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Re: [avr-gcc-list] After ATMega

From: Galen Seitz
Subject: Re: [avr-gcc-list] After ATMega
Date: Thu, 13 Oct 2005 08:44:18 -0700

Eric Pasquier <address@hidden> wrote:

> Dear All,
> I am using an ATMega32, 16MHz to implement a Kalman filter (7 input states).
> I suceed to run it at 60Hz, but with lots of optimization and
> compromises, like using fix floating point math for example.
> ADC, timers, serial, I/O are used.
> I would like to have more capacity for calculation (about 6 times),
> but I need to stay at almost the same frequency for Timers (PPM read
> and Servos commands).
> What new MCU can I use ?
> - Atmel have AT91SAM7 series: about 50Mips (only 3 times)
> - others ?

The AT91SAM7 parts are 32 bits, so I believe you would see more than three
times improvement.  That said, I think a DSP part might be a better choice,
given what you are implementing.  I'd look at the TI TMS320F2801.  


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