I am now running 24.1.3. I just installed 74LVC1G.lib and used symbols from 74LVC.zip found in the "files" section.? As long as I connect the power pin to each symbol to VCC, connect VCC to the logic voltage, and add .param VCC=5 or (whatever voltage is your logic voltage) everything runs fine with no errors detected. I checked a '14 Schmitt trigger with 5 volts and the positive going and negative going thresholds were right on.

I'm not sure the library and symbols need changing at all to properly run with 24.1.3.

Steve Hogan

?

On 2025-02-20 09:39, Tony Casey wrote:

On 20/02/2025 15:19, Andy I via groups.io wrote:

Well, there may be one caveat.? If I remember correctly, Mike Engelhardt said that parameter values do not descend infinitely far down into their subcircuits, like you think they ought to.? I think he said it goes down only three(?) levels deep.

?

That was and is really disturbing.? I never took the time to verify it.

That implies that different code is executed after a certain depth. That doesn't sound like the right thing to do. That "recursive" thing has popped up again. Proper recursive sub-routines should, in principle, recurse to infinite depth, limited only by memory. I guess one might add a sanity check at some level of arbitrarily defined depth. But three sounds way too conservative.

As a practical bloke, I might check your theory.? :-)

--
Regards,
Tony