Hi. This is the first time I work with an LCD. The code only displays a character.

If you see the configuration you'll notice that I send the common commands so at the end of configuration I have a blinking block at screen home.

This part works well but I can't display the letter G.

I hope you can help me.


<pre>
configura:

RS equ P1.0
En equ P1.1

mov R1, #75
acall retardo

clr RS ; Send a command.
clr En ; Enable = 0.

mov P0, #38h ; Function Set.
mov R2, #150 ; Time for delay
acall habilita ; Call for enable and delay subrutine

mov P0, #0Fh ; Display control.
mov R2, #50
acall habilita

mov P0, #01h ; Clear screen.
mov R2, #50
acall habilita

mov P0, #02h ; Screen Home.
mov R2, #50
acall habilita

mov P0, #06h ; Increment DDRAM after writing
mov R2, #50
acall habilita


inicio:
mov R2, #255
setb RS
mov P0, #'G'
acall habilita


retardo: ; Get 16.575 ms.
djnz R0, retardo
djnz R1, retardo
ret


decr1:
djnz R2, decr1
ret


habilita:
setb En ; Enable.
acall decr1 ; Delay
clr En ; Disable.
ret

end