Re: [avr-gcc-list] After ATMega

[Galen Seitz]

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.  

galen