I know that this query is purely heretic over here by it's very nature, so bear with me...
I have a bunch of 89S8252 devices around, and now i tried to program them with the STK500. The docs allows programming the 89S52 chip, and the 89S8252 has the identical pin layout and programming algorithm, so it should work. However, with several chips (well, actually all of them) i was unable to program them (via AVRstudio's programmer), it immediately failed with the well-known window showing the communication error popup.
Now, DID anyone out there succeed in programming those chips via the STK500?
Thanks a lot,
PS: programming AVR chips works fine, so the STK500 board as such is working. I just don't know if it's some sort of protest with the 89 devices, or if it doesn't work in general.