I don't understand "flock I modulate".or "codigos" or some other terms you used.
You probably can not progran the the DEMOJM board with the DEMOQE board, becuase there would be 2 BDMs connected.
If you have built your own JM board you should be able to program with either of the DEMO boards, but remember to pull the chip out of the DEMO board.
I have a feeling that I am not understanding your post. Could some one translate these words?