[help]SAS with FPGAs

Hi,all.I am doing a project which will implement SAS with FPGAs on
Xilinx Virtex 4 ML405 board. But before I am a software designer and
never do IC design before ,so this project is very difficult for
me.Who could help me  and  give me some guidances or  some datum and
paper about how to implement SAS with FPGAs.I will be very
grateful.Thanks very much.

On 16 Dez., 16:11, westsp...@gmail.com wrote:
> Hi,all.I am doing a project which will implement SAS with FPGAs on
> Xilinx Virtex 4 ML405 board. But before I am a software designer and
> never do IC design before ,so this project is very difficult for
> me.Who could help me  and  give me some guidances or  some datum and
> paper about how to implement SAS with FPGAs.I will be very
> grateful.Thanks very much.

You are not talking about the airline, are you?

If not, lease check all that apply:
You want ot build an:
a) Safety and Automation System
b) Synthetic Aperture Sonar
c) beam forming circuitry for Small-Angle Scattering
d) Slot Accounting System

a) will be easist, c) requires a lot of additional hardware not found
on an ML405, a) should not be build by a novice. b) probably is the
best match for an ML405.


Kolja Sulimma

comp.arch.fpga wrote:
> On 16 Dez., 16:11, westsp...@gmail.com wrote:
>> Hi,all.I am doing a project which will implement SAS with FPGAs on
>> Xilinx Virtex 4 ML405 board. But before I am a software designer and
>> never do IC design before ,so this project is very difficult for
>> me.Who could help me  and  give me some guidances or  some datum and
>> paper about how to implement SAS with FPGAs.I will be very
>> grateful.Thanks very much.
> 
> You are not talking about the airline, are you?
> 
> If not, lease check all that apply:
> You want ot build an:
> a) Safety and Automation System
> b) Synthetic Aperture Sonar
> c) beam forming circuitry for Small-Angle Scattering
> d) Slot Accounting System
> 
> a) will be easist, c) requires a lot of additional hardware not found
> on an ML405, a) should not be build by a novice. b) probably is the
> best match for an ML405.
> 
> 
> Kolja Sulimma

I think the OP probably means Serial Attached SCSI, which is very close 
to SATA.

Depending on the speeds involved, 1.5G or 3G, this may not be an 
appropriate first project.

RB

westspeed@gmail.com wrote:
> Hi,all.I am doing a project which will implement SAS with FPGAs on
> Xilinx Virtex 4 ML405 board. But before I am a software designer and
> never do IC design before ,so this project is very difficult for
> me.Who could help me  and  give me some guidances or  some datum and
> paper about how to implement SAS with FPGAs.I will be very
> grateful.Thanks very much.

Serial Attached SCSI is NOT a task for someone to design from the ground 
up unless they are *very* seasoned hardware engineers, in my opinion, 
and have time to "waste" at that.  If you purchase an SAS core from a 
3rd party vendor, integrating this core to a usable system would be a 
challenge for someone unfamiliar with hardware design, though doable. 
Starting from nothing, this would have to be at least a man year worth 
of work to get to where the drives are starting to talk for someone who 
isn't already confident with FPGAs.

If you have the SAS cores, you may be able to get integration help from 
the people who developed the cores.  At least the learning curve at that 
point would be much simpler for the uninitiated since wiring up cores to 
a top level design is easier than developing the core, but it's still 
not something I'd expect a non-hardware person to be responsible for.

It's a little like asking me - expert in hardware, knowledge about 
software with the ability to read through most and write some C - to 
develop a database system for those SAS drives.   Uhhh....

- John_H