hi p89v51rd2 interfacing with jhd 162a , nothing displayed , give me the solution

[chasekan@gmail.com]

Org 00h
mov a,#38h
acall cmnwrt
acall delay
mov a,#0eh
acall cmnwrt
acall delay
mov a,#01h
acall cmnwrt
acall delay
mov a,#06h
acall cmnwrt
acall delay
mov a,#84h
acall cmnwrt
acall delay
mov a,#'n'
acall datawrt
acall delay
mov a,#'o'
acall datawrt
l1: Sjmp l1
cmnwrt: Mov p1,a
clr p2.0
clr p2.1
setb p2.2
acall delay
clr p2.2
ret
datawrt: Mov p1,a
setb p2.0
clr p2.1
setb p2.2
acall delay
clr p2.2
ret
delay: Mov r3,#50
l2: Mov r4,#255
l3: Djnz r4,l3
djnz r3,l2
ret
end

 

[geobabu]

Repeat these routines for 2,3 times
" mov a,#38h
acall cmnwrt "

 

[chasekan@gmail.com]

still it is not working

 

[geobabu]

Try the following LCD commands in the order (its in C, take the commands from it.)

LCD_command(0x38); // 8-bit, 2 Line, 5x7 Dots
LCD_command(0x38);
LCD_command(0x38);
LCD_command(0x08);
LCD_command(0x01); // Clear LCD
LCD_command(0x06); // entry mode , auto increment with no shift
LCD_command(0x0C); // Display ON , cursor blinking command

Also you need to specify some details like its PIN's configs. Here I think p2.0 is RS line. p2.1 is RW and p2.2 is E. Just try by putting the delay call just after the H->L transistion on E pin. like
setb p2.2
clr p2.2
acall delay