Re: MPC555 speed versus PentiumMMX

"surgevw" <[email protected]>
Newsgroups gmane.comp.hardware.motorola.microcontrollers
Message-ID <[email protected]>
When I got the sales pitch from Mathworks of Natick, they didn't know.
At that point they didn't understand what I was trying to do (nor did
I, exactly). When I get the model done, I will get an eval version and
try it. I can tell you right now that the integral term in a PID
controller eats clock cycles on the Pentium, and I am not sure why. I
am curious to see how a 56MHz MPC565 compares with the more
conventional Simulink model and the SimMechanics inverse kinematics model.

Thanks,

Seth


--- In [email protected], "mworksjjf" <jfielder@m...> wrote:
> Hi Seth,
> 
> > I trying to get a handle on the relative
> > performance of a MPC 555 or 565 
> 
> You should be able to clock the MPC565 faster than the MPC555 - up to 
> 56 MHz.
> 
> > with respect to an early Pentium,
> > specifically a 266 MMX unit with 66MHz FSB. 
> 
> We're not sure exactly how these will compare for your application.
> 
> Please contact your local MathWorks office and request an evaluation 
> of the Embedded Target for Motorola MPC555.   It is a straight 
> forward process to re-target your model from xPC to MPC555.
> 
> If required, your local MathWorks office will be able to get in touch 
> with the development team to determine if any further optimisations 
> can be applied.
> 
> Best regards,
> 
> Jon Fielder
> Embedded Targets Development
> The MathWorks Ltd.




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