Where to implement an AES encryption/decryption algorithm: in FPGA or in CPLD?

• Oct 15, 2005

• #1

U

udaykamboj

Newbie level 3

Joined

Oct 15, 2005

Messages

3

Helped

0

Reputation

0

Reaction score

0

Trophy points

1,281

Activity points

1,311

I am working on implementing an optimised AES Encryption/Decryption Algorithm in either an FPGA/CPLD. Could anyone tell me which one is better to use and why?

 

• Oct 16, 2005

• #2

S

sp

Full Member level 6

Joined

Jan 1, 2004

Messages

395

Helped

23

Reputation

46

Reaction score

2

Trophy points

1,298

Location

Floating Garden

Activity points

4,044

FPGA or CPLD?

should b the FPGA.... cpld hav limited i/o pins... FPGA hav lots of i/o pin...

however, FPGA is sram base... tht mean it is volatile memory...

CPLD is non-volatile memory....

however, resources in FPGA is so many times larger than the CPLD...

regards,
sp

 

• Oct 16, 2005

• #3

C

cdcll

Full Member level 3

Joined

Feb 15, 2002

Messages

163

Helped

8

Reputation

16

Reaction score

1

Trophy points

1,298

Activity points

1,199

FPGA or CPLD?

if your project needs alot of resources, you have to choose FPGA, but some of CPLDs, from @ltare(MAXII) and LATICE etc, have more resources than before, you may estimate the required resources first.

 

• Oct 16, 2005

• #4

P

preet

Advanced Member level 4

Joined

Jan 10, 2005

Messages

112

Helped

7

Reputation

14

Reaction score

5

Trophy points

1,298

Activity points

908

Re: FPGA or CPLD?

working on AES algorithm requires lots of resources which are available only in FPGA

 

• Oct 17, 2005

• #5

R

Rooftop

Full Member level 2

Joined

Oct 28, 2004

Messages

134

Helped

4

Reputation

8

Reaction score

2

Trophy points

1,298

Activity points

1,241

Re: FPGA or CPLD?

I think if your algorith is complex, i prefer to use FPGA. The CPLD has an advantages in hardware respons. It's quicker because it's consist of macro cell. But CPLD lacks of flip-flop but FPGA has a lot of it. May be you should consider your algorithm
That's what i know.

 

• Oct 17, 2005

• #6

T

tramp

Member level 5

Joined

Aug 6, 2005

Messages

86

Helped

6

Reputation

12

Reaction score

2

Trophy points

1,288

Location

india

Activity points

1,953

Re: FPGA or CPLD?

FPGA will be better choice bcos you will have lot of resource option for implementing algorithem.

 

• Oct 17, 2005

• #7

W

wufengbo

Junior Member level 3

Joined

Sep 25, 2003

Messages

31

Helped

0

Reputation

0

Reaction score

0

Trophy points

1,286

Activity points

265

Re: FPGA or CPLD?

I think FPGA is prefered, because FPGA has enough resource to implement the AES algorism.

 

• Oct 19, 2005

• #8

M

moorthi

Member level 1

Joined

Aug 29, 2005

Messages

34

Helped

0

Reputation

0

Reaction score

0

Trophy points

1,286

Activity points

1,600

Re: FPGA or CPLD?

The FPGA of course is a the best option. But it is better to choose an FPGA which is having Embedded memory blocks in built to implement the lookup table better. In the case of Xilinx choose the VirtexII or above in Altera choose Acex1k or above. I dont have idea about the other FPGAs. But choose something which is having inbuilt memory

--moorthi

 

• Oct 28, 2005

• #9

E

Elephantus

Junior Member level 3

Joined

Jul 11, 2005

Messages

31

Helped

4

Reputation

8

Reaction score

0

Trophy points

1,286

Activity points

1,627

Re: FPGA or CPLD?

As for blockram resources, Xilinx Spartan 2 or Spartan 3 models come with blockrams also. See the Spartan 2/3 datasheets for details. Choose the chip according to your desired throughput, also. If you aim for high throughputs a Virtex chip is probably a better solution. For most applications i would go with a Spartan-3 chip.

 

• Nov 17, 2005

• #10

S

shekar_vlsi

Member level 1

Joined

Aug 19, 2005

Messages

33

Helped

0

Reputation

0

Reaction score

0

Trophy points

1,286

Activity points

1,562

Re: FPGA or CPLD?

I feel fpga is better as it is much more efficient than cplds.If U want U r design to be economical then go for CPLDs

 

• Nov 20, 2005

• #11

N

newbiebk

Junior Member level 1

Joined

May 29, 2005

Messages

19

Helped

1

Reputation

2

Reaction score

0

Trophy points

1,281

Activity points

1,452

Re: FPGA or CPLD?

CPLD and FPGA is the same?
can any of you explain?

 

• Nov 20, 2005

• #12

P

power-twq

Full Member level 6

Joined

Jun 10, 2005

Messages

373

Helped

8

Reputation

16

Reaction score

3

Trophy points

1,298

Activity points

4,550

Re: FPGA or CPLD?

you should use FPGA, because

general CPLD has lower logic capacity to

meet your needs.

best regards

udaykamboj said:

I am working on implementing an optimised AES Encryption/Decryption Algorithm in either an FPGA/CPLD. Could anyone tell me which one is better to use and why?

Click to expand...

 

• Nov 22, 2005

• #13

cowslip

Junior Member level 1

Joined

Dec 18, 2003

Messages

15

Helped

0

Reputation

0

Reaction score

0

Trophy points

1,281

Activity points

129

Re: FPGA or CPLD?

I 've worked with CPLD and my opinion is that there is serious restriction in the designs' size. A simple ALU and CPLD is full.
I haven't work with FPGA, but i 'm trying to learn now.

Could anyone list the basic steps for programming a spartan 3 Xilinx FPGA:?:

 

• Nov 24, 2005

• #14

E

echo47

Advanced Member level 6

Joined

Apr 7, 2002

Messages

3,933

Helped

638

Reputation

1,274

Reaction score

90

Trophy points

1,328

Location

USA

Activity points

33,176

FPGA or CPLD?

Please clarify "basic steps for programming". That question is extremely broad.

By the way, are you using the Xilinx/Digilent Spartan-3 Starter Kit? Many folks here have that kit.

 

• Nov 24, 2005

• #15

A

alieeldin

Member level 2

Joined

Nov 19, 2005

Messages

46

Helped

2

Reputation

4

Reaction score

1

Trophy points

1,288

Activity points

1,653

Re: FPGA or CPLD?

the fpga is sram teqnology but cpld is nonvolatile teq
is oyu used the fpga kit , the kit must buit in by flash memory
so u will compare by power consumpsion (fpga less)
and then for the number of gates (fpga more )

in last FPGA

 

• Dec 2, 2005

• #16

S

stevenleew

Newbie level 2

Joined

Dec 2, 2005

Messages

2

Helped

0

Reputation

0

Reaction score

0

Trophy points

1,281

Activity points

1,294

Re: FPGA or CPLD?

Such as Lattice XO

cdcll said:

if your project needs alot of resources, you have to choose FPGA, but some of CPLDs, from @ltare(MAXII) and LATICE etc, have more resources than before, you may estimate the required resources first.

Click to expand...