What are the corner cases for FIFO verification?

[spauls]

FIFO VErification

i have to verify a FIFO module,
can anybody please tell what could be corner cases for that .

 

[jay_ec_engg]

Re: FIFO VErification

Have u design the FIFO module in FPGA ??? if yes then have u used parametric module of perticular tool ??? ( like in ALtera FIFO LPM )....??

if yes..u can verify it easily . just give clock pulses... read or write signal ( for testing , first write some data and then read it)and check it whether ur getting currect data or not...

 

[AlexWan]

Re: FIFO VErification

i have to verify a FIFO module,
can anybody please tell what could be corner cases for that .

One port or two port?
One clock or two clock?
Are there some relationship between two clock?

 

[gold_kiss]

Re: FIFO VErification

Hi,
You can first start with conditions
1. Fifo Full -- read / write
2. Fifo Empty -- read / write
3. Fifo half full -- read /write
4. Fifo last but one full -- read/write
5. Fifo empty -- continuous read
6. Fifo full -- continuous write

Depending on depth of your fifo try these testcases.

Thanks,
Gold_kiss

 

[yeewang]

FIFO VErification

random tests would a good complementary way to test your design.

 

[beta0]

Re: FIFO VErification

random tests would a good complementary way to test your design.

Good idea!
And if your FIFO is a asynchronous one ,you'd better do you function verification at gate netlist level (with SDF).

 

[troops]

Re: FIFO VErification

if u want to get some example , finding it at "opencores"

 

[jelydonut]

Re: FIFO VErification

If your working with 2 clock domains watch for glitching on your fifo full/empty lines..

jelydonut

 

[qjlsy]

Re: FIFO VErification

read-write at the same time on the boundary conditions (take full, empty, almost full, almost empty for example) need to be payed much attention to.

 

[hong_vito]

Re: FIFO VErification

you find out synospys's forum.
it have a good reference

 

[AlexWan]

Re: FIFO VErification

you find out synospys's forum.
it have a good reference

Could you upload those articles here? I think most haven't the username & password for synopsys's forum.

Thank you!

 

[askrkrao]

Re: FIFO VErification

Good