I have written this code by tutorial in this site. It's compiled successfully . But it was nothing on my LCD . Who can tell me , what was wrong here ? My tools are AT89s8252, LCD16x2 (written : WH1602D-YYK-CP I dont know what it mean ), complier reads51 .
Please test it on your tools , and tell me report .
Thanks soon for help .

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LCALL INIT_LCD
LCALL CLEAR_LCD
MOV E0h,#'H'
LCALL WRITE_TEXT
MOV E0h,#'E'
LCALL WRITE_TEXT
MOV E0h,#'L'
LCALL WRITE_TEXT
MOV E0h,#'L'
LCALL WRITE_TEXT
MOV E0h,#'O'
LCALL WRITE_TEXT
MOV E0h,#' '
LCALL WRITE_TEXT
MOV E0h,#'W'
LCALL WRITE_TEXT
MOV E0h,#'O'
LCALL WRITE_TEXT
MOV E0h,#'R'
LCALL WRITE_TEXT
MOV E0h,#'L'
LCALL WRITE_TEXT
MOV E0h,#'D'
LCALL WRITE_TEXT

INIT_LCD:
SETB B0h.7
CLR B0h.6
MOV 80h,#38h
CLR B0h.7
LCALL WAIT_LCD
SETB B0h.7
CLR B0h.6
MOV 80h,#0Eh
CLR B0h.7
LCALL WAIT_LCD
SETB B0h.7
CLR B0h.6
MOV 80h,#06h
CLR B0h.7
LCALL WAIT_LCD
RET

WAIT_LCD:
SETB B0h.7
CLR B0h.6
SETB B0h.5
MOV 80h,#0FFh
MOV E0h,80h
JB E0h.7,WAIT_LCD
CLR B0h.7
CLR B0h.5
RET

CLEAR_LCD:
SETB B0h.7
CLR B0h.6
MOV 80h,#01h
CLR B0h.7
LCALL WAIT_LCD
RET

WRITE_TEXT:
SETB B0h.7
SETB B0h.6
MOV 80h,E0h
CLR B0h.7
LCALL WAIT_LCD
RET


end