Is it possible to connect a power to Vcc-pin

Hi! I just tried to simulate my last scheme, and i got a problem:
How to connect the Drain to the Vcc of ATTiny13?
Thank You!

Sorry.. it is not possible to use Vcc pin.
It is connected to +5V by default.

Any chance to become possible soon...???

This is an idea i have in mind, but now everything in MCUs is hardcoded to work at 5V.

Implementing this requires to solve a lot of things (some that come to my mind):
Input and output voltages.
Behavior of perifericals like ADC.
Defining voltage limits for each MCU.
Behavior beyond the voltage limits.
Enabling/Disabling the use of power pins.
...

And right now there is a mountain of things to solve.
So I don't think this will be implemented soon.
But eventually...

I was able to enable Vcc and Gnd by tweaking the associated package file:

By default we see the pin definitions for each IC or integrated circuit under the /share/simulide/data/ic74 directory:

bash-4.3$ ls -1 | grep package | sort
4X2IGate.package
4X2IGate_LS.package
74C925.package
74C925_LS.package
74C926.package
74C926_LS.package
74C927.package
74C927_LS.package
74HC00.package
74HC00_LS.package
74HC02.package
74HC02_LS.package
74HC04.package
74HC04_LS.package
74HC08.package
74HC107.package
74HC107_LS.package
74HC109.package
...


If you look inside a package file, for example 74HC139.package, or any other package you will see lines
indicating the Vcc/Gnd are tagged as unused. If you modify those lines to reflect type="" instead of type="unused"
and save them, then you will be able to connect Vcc lines on associated IC to associated Voltage source
Same applies to ground connector as well. I think it helps aid understanding of circuit for students to see the visual
connections to Voltage source and ground. I have made those changes to my installation, and have not noticed any issues with simulation. All appears to work correctly with various circuits.


cat 74HC139.package

Yes you can do that, but it has no effect at all, those pins are connected to nothing.

Someone using these packages would expect the input and outputs voltages to be proportional to suply voltages, which is not the case.