How to change logic levels in LTSPice?
Joerg
the voltage level of behavioral logic such as "AND" from the default 1V
to some other voltage?
Maybe even other parameter such as rise/fall times, prop delays?
--
Regards, Joerg
http://www.analogconsultants.com/
"gmail" domain blocked because of excessive spam.
Use another domain or send PM.
Helmut Sennewald
news:GVUvk.18978$LG4....@nlpi065.nbdc.sbc.com...
Hello Joerg,
Right-mouse-click on the device in your schematic. A dialog will be shown.
Enter the parameter(s) into any field from "Value" to "SpiceLine2".
Vhigh=5 Vlow=0 Ref=1.5
Trise=5n Tfall=5n Td=5n
"Ref" is the threshold. Default is (Vhigh+Vlow)/2
Don't connect anything to unused inputs!
You want or need examples?
http://tech.groups.yahoo.com/group/LTspice/files/%20Tut/Digital%20A-Devices/
Best regards,
Helmut
Joerg
> "Joerg" <notthis...@removethispacbell.net> schrieb im Newsbeitrag
> news:GVUvk.18978$LG4....@nlpi065.nbdc.sbc.com...
>> First time for me to do mixed mode sims on LTSpice. How do you change the
>> voltage level of behavioral logic such as "AND" from the default 1V to
>> some other voltage?
>>
>> Maybe even other parameter such as rise/fall times, prop delays?
>>
>> --
>> Regards, Joerg
>>
>> http://www.analogconsultants.com/
>>
>> "gmail" domain blocked because of excessive spam.
>> Use another domain or send PM.
>
> Hello Joerg,
>
> Right-mouse-click on the device in your schematic. A dialog will be shown.
> Enter the parameter(s) into any field from "Value" to "SpiceLine2".
>
> Vhigh=5 Vlow=0 Ref=1.5
> Trise=5n Tfall=5n Td=5n
>
> "Ref" is the threshold. Default is (Vhigh+Vlow)/2
>
Thanks, Helmut. I just got mail from a reader of these groups and he
suggested the same. Works!
> Don't connect anything to unused inputs!
>
That's what I tried at first. Well, at least no smoke came out of the
PC. In real life it would have been phssst ... BANG :-)
> You want or need examples?
> http://tech.groups.yahoo.com/group/LTspice/files/%20Tut/Digital%20A-Devices/
>
I'll have to see whether I can get that group through gmane. The Yahoo
interface is such a pain.
Helmut Sennewald
Hello Joerg,
I highly recommend to use a web browser. There are so many goodies
on the group's webpage. You would miss them all if you use
any simple message viewer.
After you have registered the for the group, set your email account to "No
email".
Otherwise your email account would be flooded with 500 messages per month.
http://tech.groups.yahoo.com/group/LTspice/
Best regards,
Helmut
Joerg
Well, I am signed up since a while. Another ID and password to remember,
sometimes it won't recognize me, and so on. If at least the message
board itself would be a newsgroup. So much more efficient.
Kris Krieger
news:g9p90l$295$03$1...@news.t-online.com:
The link requires a UID and password...
Michael A. Terrell
Just like all other private Yahoo groups. You need a Yahoo e-mail
address, and to request to join the group. No big deal, if the
moderators are on the ball.
--
http://improve-usenet.org/index.html
aioe.org, Goggle Groups, and Web TV users must request to be white
listed, or I will not see your messages.
If you have broadband, your ISP may have a NNTP news server included in
your account: http://www.usenettools.net/ISP.htm
There are two kinds of people on this earth:
The crazy, and the insane.
The first sign of insanity is denying that you're crazy.
JosephKK
What a nutter. I use a real news reader and i do not have any problem
wading through 1000 posts a month. They do not appear in my email
inbasket. But about 200 spams a month do arrive past my ISP's
filters, but they are not the same.