Hi Friends, I am using Phillips 89v51RD2 and i wish to code variables into specific memory address location inside the ROM of 89v51 as my application demands. Is it possible to do so?? If yes please HELP me ...
"Sector size is really 0x7F bytes . while erasing a sector 89v51 RD2 erases 128 bytes at once "
But if the processor erases 128 bytes at a time, then it is erasing 0x80 bytes at a time. Just that the index of the bytes ranges from 0 to 0x7F (0 to 127 is 128 memory cells).
ha ha ! thanx for pointing that out for me.I actually meant 0x00-0x7F bytes.Seriously ,confusion to its core. Sorry for my ambiguous comments.
Mistakes are easy to make. :)
The problem is just that some readers will not be able to detect what is a mistake which is the reason why I prefer to point them out.