Hi Andrew, I have a question for you.
I had the same problem as Ketan. I programmed the chip (89C51RD2BA)
once in ISP mode, but I think I erased the Boot Vector and status bytes
since I selected "Erase all Flash+Secutity+Clks" button box first time, and now I can't program it again. The alert window says "Unable to read the security bits and clock bits...." and other win says " Error verifying. There is a difference in the Hex file value and the stored value".
Comment 1: How I can reprogram by paralell mode the chip? (soft and hardware).
Comment 2: The next time if I want to program the chip I should not mark
"Erase all Flash+Secutity+Clks" button box. Which steps I
should take for good programming ISP mode with Flash Magic soft.
Help me, please!