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Hi All,
Could you please tell me that from where I could download bootloader for P89C51RD2BN chip?
I want hex file so that I could reprogram the bootloader to the IC.

Thanking in advance.

regards,
Kirankumar

Hi all,
I am new to this list.
I am using P89C51RD2BN, through ISP i am trying to program it. but it is not entering into ISP mode.  I am using FlashMagic to do programming. it is giving me error as "Unable to connect at specified boud rate. Try reducing the boud rate"!
I have made circuitry as per AN461, the only difference is that in the reset circuit i am using 8.2K resister instead of 10K specified in AN461. also EA/VPP line is kept floating but in AN461 they have shown that that pin is connected to ground through 0.1uF capacitor. is the problem i am facing is due to these differences?. I have a jumper for PSEN pin to put microcontroller in to ISP.
please help me.

looking for your reply!

thanking in advance,

regards,
Kiran