I'm using at89s51 n when i still connect the micro to the paralel port via downloader cable it seems that the clock is much faster..hundreds of times...i'm using 11,0592MHz crystal..
I've try this using simple on-off led n the delay is beyond my calculation..the simulator (pinnacle) shows the correct result but in practical is far to fast...
Has anybody try? Is it normal? Why?
because when i try to send data via serial to other 89s51 it's stuck also...is it also effect the baud rate?

Plz give me enlightment n solution...
Thx b4 :>

regards, Leo