RE: [avr-gcc-list] After ATMega

[Trampas]

The TMS320F28xx is great part but the cost for entry is high $500 for
compiler and about $1000 for JTAG. 

I would personally go with a ARM 7 as that it is the next step up from an
AVR. The TMS320F28xx is a step above the ARM 7s but also has more power
consumption to go with the higher processing power. 

There are lots of options for ARM 7's from Atmel and others. 

Trampas
  
 

-----Original Message-----
From: address@hidden
[mailto:address@hidden On Behalf Of Galen
Seitz
Sent: Thursday, October 13, 2005 11:44 AM
To: Eric Pasquier
Cc: address@hidden
Subject: Re: [avr-gcc-list] After ATMega

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


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