Demetris S wrote:
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the program is not running.

I put a very basic program like



org 0h

mov A,#05h

mov dptr,#3000h

mov @dptr,A

end



After "running" the program i look in 3000h address but nothing is changed.


The DS5000 is a very clever unit. Have you set the correct boundaries for CODE and XDATA ?

Your code should be in 0- (say) 0FFFH and your XDATA from 1000H up.

Your program would be better as
ORG 0
start:
LJMP 100H
org 100h
PGM: mov A,#05h
mov dptr,#3000h

mov @dptr,A

end


How are you looking at 3000H ? With Kit5K ?

STeve