Hello,

I built a low cost emulator, based on 89c8252. You need 89c8252 and some components, total cost should be app. $15-20, if you make PCB. It is connected to a LPT port and emulates 8051,8052,89C8252, and I also build an adapter for emulating 89Cx051. If you want additional information, write.

regards, Damjan