Hi Bhooshan,

Thank you!

I have read your reply in dsprelated, but it did't appear in Google
group, so I posted your reply here!

Best regards,
Davy

Davy--

>When I setup CCS, I found there are two Simulator: Functional Simulator
>and CPU Cycle Accurate Simulator. What's their main difference?

The later versions of CCS(3.1 and above) do include a good introduction
of
the different types of simulators, their relative advantages and when
one
must chose a particular simulator. But in general a CPU cycle accurate
simulator would be faster than say a, device functional simulator
because
it may not model the various peripherals(EDMA,QDMA, McBSP,EMIF etc.)
and
cache systems. In other words it might assume a flat memory model and
will
not support Digital Loop Back.

>If I want to know the cycle a program will cost, which Simulator shall
>I choose?

That depends on whether you want to model memory hierarchy, caching,
DMA
etc. If you do not want to model any of this(because your end system
uses
infinite memory) then you may go for the CPU cycle accurate simulator.
Also if you want the fastest simulation time one would go for CPU cycle
accurate simulator.

--Bhooshan


This message was sent using the Comp.DSP web interface on
www.DSPRelated.com

Davy--

>When I setup CCS, I found there are two Simulator: Functional Simulator
>and CPU Cycle Accurate Simulator. What's their main difference?

The later versions of CCS(3.1 and above) do include a good introduction of
the different types of simulators, their relative advantages and when one
must chose a particular simulator. But in general a CPU cycle accurate
simulator would be faster than say a, device functional simulator because
it may not model the various peripherals(EDMA,QDMA, McBSP,EMIF etc.) and
cache systems. In other words it might assume a flat memory model and will
not support Digital Loop Back.

>If I want to know the cycle a program will cost, which Simulator shall
>I choose?

That depends on whether you want to model memory hierarchy, caching, DMA
etc. If you do not want to model any of this(because your end system uses
infinite memory) then you may go for the CPU cycle accurate simulator.
Also if you want the fastest simulation time one would go for CPU cycle
accurate simulator.

--Bhooshan

		
This message was sent using the Comp.DSP web interface on
www.DSPRelated.com

Hi all,

When I setup CCS, I found there are two Simulator: Functional Simulator
and CPU Cycle Accurate Simulator. What's their main difference?

If I want to know the cycle a program will cost, which Simulator shall
I choose?

Any suggestions will be appreciated!
Best regards,
Davy