Discussion in "ARM Development" started by    gopi    Mar 11, 2009.
Wed Mar 11 2009, 06:50 pm
Hello everyone. I have proteus7.4 serverpack version(it supports even ARM7TDMI) which is interlinked with keil s/w. I am able to perform simulation with 8051 but when it comes with ARM7 its not. boz ARM7 requires 3.3v and 1.1v supply for its GPIO's, where proteus provides min 5v supply. So plz help me how to overcome this problem.
Thu Mar 12 2009, 01:38 pm
you can use the DC source for this purpose.
Proteus is intelligent enough to understand what component you are using. so it adjust the power automatically.

As i said.. use DC source or edit the power terminal and type +3.3V instead of VCC there.
Fri Mar 13 2009, 01:33 am
Even if i changed my VCC its giving error. The error is:
error: '1.8V Vcore'(3.30V) is outside specified range(1.65V-1.95V)
error: '3.3V VDD'(5.00V) is outside specified range(3V-3.6V)
Fri Mar 13 2009, 11:00 am
can u post the proteus file

Sat Mar 14 2009, 02:49 pm
you need to edit the power rails in schematic. its better to start with a new schematic.
after you open a new one, go to design -> configure Power Rail configuration.
select VCC/VDD there and make it 3.3.
and make new power rail for 1.8V core voltage.
 gopi like this.
Mon Mar 16 2009, 02:51 am
thanks a lot. i will try it.
Mon Apr 27 2009, 10:03 am
hello ajay. I followed the steps u gave me. it was working. thanks for that.
But still i had an another problem. For small programs like lcd interface ,its working fine.but foe large programs its notand its giving a warning: Simulation not working due to excessive load on CPU. So, to rectify it what should i do? Thanking u in advance.
Mon Apr 27 2009, 04:32 pm
you cannot help it. There is no solution to that problem.
If you want to check your programs realtime then run them on hardware.
Mon Apr 27 2009, 07:38 pm
but there might be some solution or this!!!!!!!!!!!!!
Mon Apr 27 2009, 11:49 pm
code efficiently thats all i can say.

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