Hello,
First of all I wont to say that I search all data base for answare but NO LUCK. So, please help me.
I'm desining a new target board with T89C51RD2 based. I want to program new and empty micro with the code I wrote. I read all application notes regarding ISP (PSEN low, ALE not connected and EA high) but for some reason I get a "time out error" when I try to make connection to the target's serial port (no mater what boud rate). My clock is 11.0592MHz. I know that the target's serial comm. is working OK in other application.
Please advice ASAP what I'm missing.

Thaks a lot,
Roberto