simulation program ?

[seti75]

hello

til is possible that a simulated program (16F877)
works well in simulation with Ares (Proteus)
but in practice it does not work exactly as the simulation ?

thanks

 

[Wp100]

Hi,

In a word, Yes, but not necessarily because Proteus is at fault, quiet possibly that you have not set some parameter or stimuli to what is needed.

That is why the MPlab / Pickit / ICD and similar Debuggers are so useful.

 

[seti75]

thank you for the reply.

I do not know if it's helpful to explain in detail my problem, it is .asm and it seems that people here can know assembler

 

[Wp100]

Hi,

There are lots of folk here using Assembler and familiar with Proteus.

Post your code and .dsn and an idea of whats going wrong - am sure you will get an answer - doesn't matter if its simple or complex - plenty of help around.

 

[Sceadwian]

What you need to explain is what is occurring in your simulated situation that is or is not occurring in the real world one.

 

[Wond3rboy]

First of all the simulation program in Proteus is ISIS not ARES.ARES is its PCB protyping part(not very good though)

I have been using ISIS for quite some time now and here are some of the thigns that i have observed which proteus is faulty at:

1) Configuration settings like say LVP(PRoteus would run it fine but not so in a practical circuit)

2) Timing for say AD converter.(Port duration can be analyzed by a logic analyzer but visually not).

All apart i would ask you to post your DSN file and the program.

 

[prashant_kd]

I face this type of problem when:

1. Interfacing Extn modules. eg. LCD with req. delay different from that in proteus
2. Calibrating ADC ( in Proteus it works in Ideal condition but in practice..........)

Try your code on one or two different simulators ( PIC Sim, Real PIC etc ) and if its working in all, then you need to check your circuit.
Again, Posting the ckt diagram will make things easy!!!!!!!!

 

[Wond3rboy]

I face this type of problem when:

1. Interfacing Extn modules. eg. LCD with req. delay different from that in proteus
2. Calibrating ADC ( in Proteus it works in Ideal condition but in practice..........)

Try your code on one or two different simulators ( PIC Sim, Real PIC etc ) and if its working in all, then you need to check your circuit.
Again, Posting the ckt diagram will make things easy!!!!!!!!

Yeah there is an other problem that i noticed in proteus.It was when i was simulating Nigel's Tutorials using a 16F628A its of a pull up resistor.It just wasnt working.Although i have interfaced LCD's with non pullup pins easily.

 

[seti75]

I'll explain everything.
This is not to alarm me is the EPEE MAG.
( Free - Envoyez vos documents )

I ais changed. simulation works well on isis. (sorry)
but in practice, the second time that the sensor presence
is enabled (a second detection) LCD display clearly indicates
that a sensor is activated, but no alarm! ?
the simulation is in practice my alarm only works once! ? (the first).

my program video isis
http://www.youtube.com/watch?v=zIN1k8-DQFs
my program.
**broken link removed**

thanks

I board found, problem solved, thank you to all