Dear all,

I am using P89V51RD2 for my project developement. while using the IC causing some problem I lost Boot vector of the IC. I had searched for the same for programming like P89C51RD2. I got whole Hex file to be downloaded in IC using Parallal programmer.
I had done the same as per instruction given but still the IC is not going into ISP mode. I had 3 nos of ICs. I am not able to debug & know how to slove this difficulty.

Please if any body had facing the similar difficulty. Advice me how to debug this difficulty.

Thank you,