problem in smulaiting (8086) using orcad 9.2

[massoti]

i want to simulait a curiut of (8086) and some other anloge parts like bjts resistores cap. using orcad problem is i can not find where to write the program of the(8086) chip after selcting it from the library

 

[kinjalgp]

I doubt whether these softwares can simulate microcontrollers/microprocessors. These are very complex deices as compared to simple digital/analog circuits and also require assembly program to work as per your requirement. There are spearate software simulators available for almost all existing uC/uP which you can use for your purpose.

 

[bogdanfirst]

do you know haw orcad works? well it can do whate ever you want, but it is very complex. i have much trouble using it.
still cant convince it to simulate a simple oscilator.

 

[kinjalgp]

Well what you are saying may be right but I still doubt about simulating a microprocessor in Orcad! Where will you write the assembly language program? On the schematic????

 

[bogdanfirst]

i dont know that, but i remember it says the program can do that.
the poiblem with simulating programs, is that you can simulate either digiatal or analog ciruits.
orcad has a mixed simulation , but i dont see it working very well

 

[kinjalgp]

Thats why I am saying for microprocessors use simulators which are only dedicated to that one.

 

[Pilot]

Not Orcad but have a look at.....

**broken link removed**

it might help.

:lol:

 

[kinjalgp]

Thats what I was suggesting him.

 

[bogdanfirst]

look, since you have more experience than me using orcad, i need a little help.
i got 9.1 and i dont know how to simulate a circuit. i create the files and all it needs, but it doesnt seem to find them. so please help be a bit with some tips

 

[bogdanfirst]

what i mean is that in the simulation i get an err msg like "there are no devices in the circuit"
what do i do?
the thing is that i cant create a net, i mean i create it but it is empty.
it should contain information on the pins and all that, but it onli containd one line with begin, another one, and then a line with end.
cant seem to find the problem.

 

[kinjalgp]

This is because you have not selected the spice device model. Select the proper spice model for all active devices in the circuit and you won't get any problem.

 

[bogdanfirst]

that's the problem, it has so many setings, a dont know where to do that from.
there is another problem, i also dont know where to select the packages so that i can transfer it to layout.

 

[kinjalgp]

If you want easy to use simulation software then try free student version of Circuit Maker from www.circuitmaker.com . There are no big settings to be done in it. Everyting is straight forward and comes with quite many examples. I am sure you will like it.

 

[bogdanfirst]

he he !!
i used circuitmaker as my first sim program, it is good as you say, but i want better!!!

 

[kinjalgp]

Then you better got to study the help files :lol: he he

 

[bogdanfirst]

well the problem is that tha program doesnt export in the netlist te semiconductros, it only sends the resistors and the caps.

 

[kinjalgp]

Well, thats because Orcad doesn't know what package/device to use from several options available in the library and thats because you have not specified them. One you select appropriate package and devices, the problem will be solved.