P89V51RD2 - Erase Page commands don't work

[Annibal Abreu]

These are the answer that I had receive from two smart Guys:

+++++++++++++++++++++++++++++++++++++++++++++++++++++
Dear Annibal,
Sorry as I was out and busy in other matter, have not opened my mail, you
can erase a sector by
    mov    20H,#00
    setb    008h

    mov    0B1H,#00
    mov    r1,#8
    mov    dptr,#Sector Address
    call     1ff0h
    mov    0b1h,#01h

Your programme must be executing above 2000h, while executing above code.
It is recommnaded that you after finishing you IAP call you better start a
fresh, as IAP uses some registers from 30H to 35H and 80H.

Harshadbhai.

++++++++++++++++++++++++++++++++++++++++++++++++++++

Dear Annibal Abreu,
  You can erase any sector of 128 bytes.  
  Set DPH and DPL for the add. locs to be erased.  Make sure that bits  0-6   of  DPL are zeroes. ( DPH - higher address & DPL-Lower address)
  Clear bit 1 of FCF register (B1H). ( This has to be done once only after reset).
  Clear BSEL bit .  As mentioned in the data sheet ,avoid clearing BSEL bit  when the user program is operating in the range 0000-1FFFH.
  Set R1 = 08H
  Call PGM_MTP at 1FF0H
  Set BSEL bit.

S.Poduval.

[M.SH]

Dear sirs.
Thank you for your very interest site.
I use IAP free software for P89c51RD2 at my project.
please help me about observable notes and changes
for use this code for P89v51RD2.

[Andy Ayre]

Sorry, we only provide support for Flash Magic - however the datasheets will give you all the info you need.