real time simulation can't be run

[omar khater]

hi

i work on SAP-1 microprocessor project on PROTEUS

i make all the connections and simulate it and it runs well ..i close the project and comeback to it then i faced this simulation problem "real time simulation can't be run"

How can i deal with it ?

 

[Alec_t]

I don't use PROTEUS, but it looks like there are several 'logic contention' issues. Have you tried adding a few parasitic very low parallel capacitance and/or series resistance values at the net nodes concerned? That may be enough to break a logic dead-lock. Or perhaps you need to close all other apps if the processor needs to run as fast as possible?

 

[omar khater]

I don't use PROTEUS, but it looks like there are several 'logic contention' issues. Have you tried adding a few parasitic very low parallel capacitance and/or series resistance values at the net nodes concerned? That may be enough to break a logic dead-lock. Or perhaps you need to close all other apps if the processor needs to run as fast as possible?

thx for reply

first : which simulation programs you advise ?
second :with same contention's it run previously
my processor is intel i5 4200-m and i don't use any other significant loads

 

[Alec_t]

:with same contention's it run previously

So something must have changed to prevent it running now. Look for clues in whatever was changed.