Software For Micro-Controller Circuit Simulation

Usually the micro-controller's software for writing the MCU has an emulation option, check with the micro-controllers supplier.

Well, my micro-controller is Atmel AT89C2051. The programming software provided by Atmel is Keil. But, I think that emulator will simulate only the micro-controller IC. I want to simulate my whole circuit (Micro-controller plus all other ICs, components in total). Will it be possbile?

Have you looked at this? http://123d.circuits.io/ It simulates circuits using the Arduino board, which uses an Atmel microcontroller (maybe not Keil, though).

I have gone through the site briefly. Looks possible... will update my progress..

Well there is spice, but that excludes microcontrollers because an MCU needs software. I am not aware of a package that can do both

not shure but the spice may be capable of ""embedding"" a "software MC" - there're are a lot of undocumented-s (like with everything) - however not like a real time solution

?

Here's what we could quickly find:

https://www.edaboard.com/thread142843.html

Many years ago, in the last century in fact, a 3-week project to develop tight temperature control on a modified existing plant was launched. While a Mechanical Engineer installed the equipment, the Controls Engineer built a mathematical model of the process and its PID controller, ran the model and tuned the controller on the model. The PID terms were then extracted from the model, plugged into the real controller at the same values, and the plant switched on. It worked correctly first time.

The model was built on an early Apple II desktop computer running the programming language BASIC.

So, of course it can be done; the vehicle to get there is irrelevant. Just go for it.

LabView provides a module to simulate your PCB including C language programming of your chip. I hope it helps

Okay, I will check it out...

Well, some people have suggested me matlab-simulink can do that. I have put up a query on mathworks. Still awaiting its reply. Anybody working in simulink, please shed some light on this matter....

I believe the SDCC compiler now has an associated simulator for the 8052 series of microcontrollers (like you are using) - although it won't simulate your external circuit. It could be handy to pick up "programme" bugs (like memory corruption, overflows etc) though, even if it wouldn't help with "logical" bugs in the way your programme interfaces to the outside world.

If your circuit is simple enough to breadboard, and you can arrange an easy way of programming in-system without pulling the prototype apart, I think I'd prefer to do it all in real hardware. I use the S version of this chip (programmed by SPI), and try to make the ISP pins the last ones I use so I can always re-programme in system. Being a terrible programmer, I do this a lot...

there is http://www.edaboard.com/thread111002.html , the PCB RFI is a nightmare (by what i've read - and i don't do practical RF designs)