Rules | Recent posts | topic RSS | Search | Register  | Log in

eye pattern simulation on spice

 
Post new topic  Reply to topic    EDAboard.com Forum Index -> ASIC Design Methodologies & Tools (Digital)
Author Message
andy2000a



Joined: 18 Jul 2001
Posts: 756
Helped: 7


Post28 Jul 2003 1:27   eye pattern simulation on spice

1. use random generator , create a pwl signal with gittern (period )
and use the follow command in hspice


.param width=3*period phase=6ns
.probe tran time_x=par('time+phase-int((time+phase)/width)*width')
.probe tran diff=v(usbdp,usbdn)

phase is delay , and use time_x as X , then select signal diff ,
then you can get hspice USB 2.0 eye pattern simulation ..
Back to top
andy2000a



Joined: 18 Jul 2001
Posts: 756
Helped: 7


Post28 Jul 2003 1:32   

put file
unix generator .. but it can not control jittern , I hope someone can rewrite and work on Win2000 , and can specify "jittern"

thank you
Back to top
andy2000a



Joined: 18 Jul 2001
Posts: 756
Helped: 7


Post28 Jul 2003 1:33   

upload file again ..
Back to top
andy2000a



Joined: 18 Jul 2001
Posts: 756
Helped: 7


Post28 Jul 2003 1:34   

i am sorry , I can upload file , who need it ?
and mail to me
Back to top
ericliu



Joined: 01 Jan 1970
Posts: 69
Helped: 2


Post28 Jul 2003 6:28   

Sandwork's waveview-analyzer can accept hspice output format and show
eye patterns.
Back to top
Post new topic  Reply to topic    EDAboard.com Forum Index -> ASIC Design Methodologies & Tools (Digital)
Page 1 of 1 All times are GMT + 1 Hour


Abuse
Administrator
Moderators
topic RSS 
sitemap